Release v3.0.0

- Bump version to 3.0.0 and update docs

- Fix Debian payload to include TUI and install /usr/bin/sensorpajen-tui wrapper

- Make systemd unit upgrades safer and ignore deb build artifacts

.gitignore

@@ -1,3 +1,25 @@
 .*
-__pycache__
-temp
+__pycache__/
+temp/
+*.db
+*.egg-info/
+.venv/
+build/
+dist/
+
+# Local configuration (do not commit secrets or device-specific state)
+config/sensorpajen.env
+config/sensors.json
+config/discovered_sensors.json
+
+# Packaging build artifacts
+debian/.debhelper/
+debian/*.debhelper.log
+debian/*.log
+debian/*.substvars
+debian/debhelper-build-stamp
+debian/files
+debian/sensorpajen/
+
+# Local experiments
+test-local-tui/

AGENTS.md

@@ -194,6 +194,18 @@ Any agent making changes must:
 * Explicit over implicit
 * Fewer moving parts
 * Easy to debug on a headless device
+* **Test-Driven Development (TDD)**: Always write tests before or alongside new features. Ensure the test suite passes before considering a task complete.
+
+---
+
+## Development Workflow
+
+1. **Branching**: All new features and significant changes must be developed in a dedicated feature branch (e.g., `feature/tui-management`).
+2. **Task Management**:
+   - Use `Tasks.md` to track active and future work.
+   - When a task is finished, **ask the user for confirmation** before moving it.
+   - Once confirmed, move the task details to `COMPLETED_TASKS.md`.
+3. **Roadmap**: Keep `ROADMAP.md` updated as the source of truth for project phases.
 
 ---
 

COMPLETED_TASKS.md

@@ -0,0 +1,846 @@
+# Tasks
+
+## Task: Text UI for sensor management (Phase 1)
+
+**Status**: DONE (2025-12-29)
+**Priority**: High
+**Estimated Effort**: 8-10 hours
+**Actual Effort**: ~6 hours
+
+### Implementation Summary
+
+Successfully implemented a modern, full-screen Textual TUI for managing Bluetooth sensors and migrated discovery data to a SQLite database for better persistence and metadata tracking.
+
+### Key Features Implemented
+
+✅ **SQLite Database Migration**:
+- Replaced `discovered_sensors.json` with `discovered_sensors.db`.
+- Implemented `DatabaseManager` for robust data handling.
+- Added tracking for RSSI, appearance count, and last seen timestamps.
+- Created migration script for existing JSON data.
+
+✅ **Textual TUI Application**:
+- **Discovery View**: Real-time list of pending sensors with "Approve" and "Ignore" actions.
+- **Configured View**: Management of `sensors.json` with "Edit" (rename) and "Remove" actions.
+- **Ignored View**: List of ignored sensors with "Unignore" capability.
+- **Interactive Modals**: User-friendly dialogs for entering sensor names and ignore reasons.
+- **Responsive Design**: Full-screen layout with Header, Footer, and Tabbed navigation.
+
+✅ **Integration & Modernization**:
+- Added `sensorpajen-tui` entry point for easy access.
+- Updated `README.md` with TUI usage instructions and keybindings.
+- Followed TDD approach with unit tests for database and TUI initialization.
+- Developed in a dedicated `feature/tui-management` branch.
+
+### Files Created/Modified
+
+- `src/sensorpajen/db.py`: SQLite database abstraction layer.
+- `src/sensorpajen/discovery_manager.py`: Refactored to use SQLite.
+- `src/sensorpajen/tui/app.py`: Main Textual TUI application.
+- `src/sensorpajen/tui/modals.py`: Modal dialogs for user input.
+- `src/sensorpajen/migrate_to_db.py`: Migration utility.
+- `tests/test_db.py`: Unit tests for database logic.
+- `tests/test_tui.py`: Unit tests for TUI initialization.
+- `pyproject.toml`: Added `textual` dependency and `sensorpajen-tui` script.
+
+### Usage
+
+```bash
+# Launch the TUI
+sensorpajen-tui
+```
+
+**Keybindings:**
+- `a`: Approve selected sensor
+- `i`: Ignore selected sensor
+- `e`: Edit sensor name
+- `u`: Unignore sensor
+- `Delete`: Remove sensor from monitoring
+- `r`: Refresh data
+- `q`: Quit
+
+---
+
+## Task: Debian Package Creation
+
+**Status**: DONE (2025-12-27)
+**Priority**: Medium  
+**Estimated Effort**: 4-6 hours
+**Actual Effort**: ~5 hours
+
+### Implementation Summary
+
+Successfully created a complete Debian package infrastructure for system-wide installation on Raspberry Pi and Debian-based systems. The package provides:
+
+- **System-wide installation** to `/opt/sensorpajen/` with dedicated user
+- **Configuration management** via `/etc/sensorpajen/` (preserved on upgrades)
+- **Automatic setup** including Python venv, dependencies, and Bluetooth capabilities
+- **Dual-mode operation** supporting both system and development installations
+- **Build verification** with automated script
+
+### Files Created
+
+#### Debian Package Files (debian/)
+- `control` - Package metadata, dependencies, maintainer info
+- `compat` - Debhelper compatibility (v13)
+- `changelog` - Version history and release notes
+- `rules` - Build instructions (Makefile)
+- `install` - File installation mappings
+- `postinst` - Post-installation script (creates user, venv, sets capabilities)
+- `prerm` - Pre-removal script (stops service)
+- `postrm` - Post-removal script (cleanup, preserves config)
+- `sensorpajen.service` - System-wide systemd unit file
+
+#### Updated Code
+- `src/sensorpajen/config.py` - Auto-detects system vs development installation
+- `scripts/approve-sensors.sh` - Supports both installation modes
+- `scripts/verify-deb.sh` - Automated build and verification script (NEW)
+
+### Installation Paths
+
+**System Installation (via .deb):**
+- Application: `/opt/sensorpajen/`
+- Python venv: `/opt/sensorpajen/venv/`
+- Configuration: `/etc/sensorpajen/`
+- Service: `/etc/systemd/system/sensorpajen.service`
+- Examples: `/usr/share/doc/sensorpajen/examples/`
+- User: `sensorpajen` (system account, no login)
+
+**Development Installation:**
+- Application: `<project-root>/`
+- Python venv: `<project-root>/.venv/`
+- Configuration: `<project-root>/config/`
+- Service: `~/.config/systemd/user/sensorpajen.service`
+
+### Key Features Implemented
+
+✅ System-wide installation with dedicated user
+✅ Python venv created automatically in postinst
+✅ All dependencies installed from PyPI
+✅ Bluetooth capabilities set automatically (setcap)
+✅ Systemd service enabled but not started (waits for config)
+✅ Configuration preserved on upgrade/remove/purge
+✅ Example configs copied to /etc/sensorpajen on first install
+✅ Dual-mode code (auto-detects system vs dev)
+✅ Automated verification script
+✅ Full lintian compliance
+
+### Build and Install
+
+```bash
+# Verify and build
+./scripts/verify-deb.sh
+
+# Or manually
+dpkg-buildpackage -us -uc -b
+lintian ../sensorpajen_*.deb
+
+# Install on Raspberry Pi
+scp ../sensorpajen_*.deb pi@raspberrypi:~/
+ssh pi@raspberrypi
+sudo apt install ./sensorpajen_*.deb
+
+# Configure
+sudo nano /etc/sensorpajen/sensorpajen.env
+sudo nano /etc/sensorpajen/sensors.json
+
+# Start service
+sudo systemctl start sensorpajen
+sudo journalctl -u sensorpajen -f
+```
+
+### Testing Results
+
+✅ Package builds successfully with `dpkg-buildpackage`
+✅ Lintian passes without errors (warnings acceptable)
+✅ Files installed to correct locations
+✅ System user created automatically
+✅ Python venv created with all dependencies
+✅ Bluetooth capabilities set correctly
+✅ Service enabled but not started before config
+✅ Configuration preserved on upgrade/remove/purge
+✅ Service runs as sensorpajen user (not root)
+✅ Logs appear in `journalctl -u sensorpajen`
+✅ Dual-mode operation works correctly
+
+### Overview
+Create a Debian `.deb` package for system-wide installation of sensorpajen on Raspberry Pi OS and other Debian-based systems. This enables easy distribution and installation via `apt`/`dpkg` instead of manual git clone + pip install.
+
+### Functional Requirements
+
+1. **System-Wide Installation**
+   - Install application to `/opt/sensorpajen/`
+   - Create Python virtual environment in `/opt/sensorpajen/venv/`
+   - Install systemd service file to `/etc/systemd/system/`
+   - Place configuration in `/etc/sensorpajen/`
+   - Put example configs in `/usr/share/doc/sensorpajen/examples/`
+
+2. **Dedicated Service User**
+   - Create `sensorpajen` system user if not exists
+   - Service runs as `sensorpajen:sensorpajen`
+   - User has no login shell, no home directory (system account)
+
+3. **Automatic Service Configuration**
+   - Auto-enable systemd service on installation
+   - Configure Bluetooth capabilities (setcap) automatically
+   - Service starts after installation if config exists
+
+4. **Configuration Management**
+   - Install example configs to `/usr/share/doc/sensorpajen/examples/`:
+     - `sensorpajen.env.example`
+     - `sensors.json.example`
+     - `discovered_sensors.json.example`
+   - Actual config expected in `/etc/sensorpajen/`:
+     - `sensorpajen.env`
+     - `sensors.json`
+   - Do NOT overwrite existing config on upgrade
+   - Preserve config on package removal
+   - Keep config even on purge (user explicitly chooses)
+   - Postinst should copy the examples into `/etc/sensorpajen/` only if they are missing, leaving any existing config untouched
+   - Upgrades should refresh `/usr/share/doc/sensorpajen/examples/` with new defaults but never alter live configs under `/etc/sensorpajen/`
+
+5. **Dependency Management**
+   - Depend on system packages: `python3`, `python3-venv`, `python3-pip`, `bluetooth`, `bluez`
+   - Create venv and install Python deps from PyPI in postinst script
+   - Use `pyproject.toml` for Python dependency specification
+
+6. **Package Metadata**
+   - Package name: `sensorpajen`
+   - Section: `misc`
+   - Priority: `optional`
+   - Architecture: `all`
+   - Maintainer: Fredrik (fredrik@wahlberg.se)
+   - Homepage: Repository URL
+   - Description: "Raspberry Pi Bluetooth temperature sensor monitor"
+   - Depends: System packages
+   - Recommends: `mosquitto-clients` (optional)
+   - **Version Source**: Extract version from `pyproject.toml` during build process.
+
+7. **Files to Include**
+   - All Python source code from `src/sensorpajen/`
+   - Scripts from `scripts/` (approve-sensors.sh)
+   - Systemd service file (system service, not user service)
+   - Example configuration files
+   - Documentation: `README.md`, `INSTALL.md`
+   - License file
+
+### Acceptance Criteria
+
+- [ ] Package builds successfully with `dpkg-buildpackage -us -uc -b`
+- [ ] Can install on fresh Raspberry Pi OS with `sudo apt install ./sensorpajen_*.deb`
+- [ ] Service user `sensorpajen` created automatically
+- [ ] Python venv created in `/opt/sensorpajen/venv/` with all dependencies
+- [ ] Bluetooth capabilities set on Python executable
+- [ ] Systemd service enabled but not started (waits for config)
+- [ ] After copying examples to `/etc/sensorpajen/` and editing, service starts successfully
+- [ ] Service runs as `sensorpajen` user, not root
+- [ ] Logs appear in `journalctl -u sensorpajen`
+- [ ] Package upgrade preserves `/etc/sensorpajen/` config files
+- [ ] Package removal (`dpkg -r`) stops service but keeps config
+- [ ] Package purge (`dpkg -P`) keeps config (user explicitly deletes if wanted)
+- [ ] `lintian` passes with no errors (warnings acceptable)
+- [ ] Automated verification script exists that builds the `.deb` and runs `lintian`
+
+### Implementation Details
+
+#### 1. Create `debian/` Directory Structure
+
+```
+debian/
+├── control              # Package metadata and dependencies
+├── rules                # Build instructions (Makefile)
+├── install              # Files to install and destinations
+├── postinst             # Post-installation script
+├── prerm                # Pre-removal script
+├── postrm               # Post-removal script
+├── changelog            # Required for native build (minimal entry)
+└── sensorpajen.service  # Systemd service file (system-wide)
+```
+
+#### 2. `debian/control` File
+
+```
+Source: sensorpajen
+Section: misc
+Priority: optional
+Maintainer: Fredrik <fredrik@wahlberg.se>
+Build-Depends: debhelper-compat (= 13)
+Standards-Version: 4.5.0
+Homepage: https://git.example.com/fredrik/sensorpajen
+
+Package: sensorpajen
+Architecture: all
+Depends: python3 (>= 3.9), python3-venv, python3-pip, bluetooth, bluez, ${misc:Depends}
+Recommends: mosquitto-clients
+Description: Raspberry Pi Bluetooth temperature sensor monitor
+ Monitors Xiaomi Mijia LYWSD03MMC temperature sensors via Bluetooth Low Energy
+ and publishes readings to MQTT broker. Supports ATC firmware with automatic
+ sensor discovery and approval workflow.
+```
+
+#### 3. `debian/install` File
+
+```
+src/sensorpajen/* opt/sensorpajen/src/sensorpajen/
+scripts/approve-sensors.sh opt/sensorpajen/scripts/
+pyproject.toml opt/sensorpajen/
+README.md usr/share/doc/sensorpajen/
+INSTALL.md usr/share/doc/sensorpajen/
+config/*.example usr/share/doc/sensorpajen/examples/
+```
+
+#### 4. `debian/rules` File
+
+```makefile
+#!/usr/bin/make -f
+
+%:
+	dh $@
+
+override_dh_auto_build:
+	# No build step needed for pure Python
+
+override_dh_auto_install:
+	# Installation handled by debian/install file
+	
+override_dh_auto_clean:
+	# Clean build artifacts
+	rm -rf build/ dist/ *.egg-info
+```
+
+#### 5. `debian/postinst` Script
+
+```bash
+#!/bin/bash
+set -e
+
+# Create sensorpajen system user
+if ! getent passwd sensorpajen > /dev/null; then
+    useradd --system --no-create-home --shell /usr/sbin/nologin sensorpajen
+fi
+
+# Create config directory
+mkdir -p /etc/sensorpajen
+chown sensorpajen:sensorpajen /etc/sensorpajen
+
+# Create virtual environment
+cd /opt/sensorpajen
+python3 -m venv venv
+venv/bin/pip install --upgrade pip
+venv/bin/pip install .
+
+# Set Bluetooth capabilities
+PYTHON_PATH=$(readlink -f venv/bin/python3)
+setcap cap_net_raw,cap_net_admin+eip "$PYTHON_PATH" || echo "Warning: setcap failed, install libcap2-bin and rerun"
+
+# Install systemd service
+cp debian/sensorpajen.service /etc/systemd/system/
+systemctl daemon-reload
+
+# Enable service (but don't start - needs config first)
+systemctl enable sensorpajen.service || echo "Warning: systemctl enable failed, enable manually"
+
+# Check if config exists, if so restart service
+if [ -f /etc/sensorpajen/sensorpajen.env ] && [ -f /etc/sensorpajen/sensors.json ]; then
+    systemctl restart sensorpajen.service
+    echo "sensorpajen service started"
+else
+    echo "Configuration needed: Copy examples from /usr/share/doc/sensorpajen/examples/ to /etc/sensorpajen/"
+    echo "Then run: sudo systemctl start sensorpajen"
+fi
+
+# Copy example configs if they're missing (never overwrite live config)
+for sample in sensorpajen.env.example sensors.json.example discovered_sensors.json.example; do
+  target="/etc/sensorpajen/${sample%.example}"
+  if [ ! -f "$target" ]; then
+    cp "/usr/share/doc/sensorpajen/examples/$sample" "$target"
+    chown sensorpajen:sensorpajen "$target"
+    echo "Copied $sample to /etc/sensorpajen/"
+  fi
+done
+
+exit 0
+```
+
+#### 6. `debian/prerm` Script
+
+```bash
+#!/bin/bash
+set -e
+
+# Stop service before removal
+if systemctl is-active --quiet sensorpajen.service; then
+    systemctl stop sensorpajen.service
+fi
+
+# Disable service
+systemctl disable sensorpajen.service || true
+
+exit 0
+```
+
+#### 7. `debian/postrm` Script
+
+```bash
+#!/bin/bash
+set -e
+
+case "$1" in
+    remove)
+        # Service removed but config preserved
+        echo "sensorpajen removed, config preserved in /etc/sensorpajen/"
+        ;;
+    purge)
+        # Even on purge, keep config (user choice to delete manually)
+        echo "Config preserved in /etc/sensorpajen/ - delete manually if needed"
+        # Could optionally remove user here, but safer to keep
+        ;;
+esac
+
+# Clean up systemd
+systemctl daemon-reload || true
+
+exit 0
+```
+
+#### 8. `debian/sensorpajen.service` File
+
+```ini
+[Unit]
+Description=Sensorpajen Bluetooth Temperature Monitor
+Documentation=https://github.com/fredrik/sensorpajen
+After=bluetooth.target network.target
+Wants=bluetooth.target
+
+[Service]
+Type=simple
+User=sensorpajen
+Group=sensorpajen
+WorkingDirectory=/opt/sensorpajen
+EnvironmentFile=/etc/sensorpajen/sensorpajen.env
+ExecStart=/opt/sensorpajen/venv/bin/python -m sensorpajen.main
+Restart=always
+RestartSec=10
+
+# Bluetooth capabilities require this to be false
+NoNewPrivileges=false
+
+# Hardening (where possible with BT requirements)
+PrivateTmp=true
+ProtectSystem=strict
+ProtectHome=true
+ReadWritePaths=/etc/sensorpajen
+
+[Install]
+WantedBy=multi-user.target
+```
+
+#### 9. Build Process
+
+```bash
+# From repository root
+dpkg-deb --build debian sensorpajen_2.0.0_armhf.deb
+
+# Check package contents
+dpkg-deb -c sensorpajen_2.0.0_armhf.deb
+
+# Check for issues
+lintian sensorpajen_2.0.0_armhf.deb
+
+> On every upgrade, rewrite `/usr/share/doc/sensorpajen/examples/` with the new package-provided examples so admins always have the latest defaults, but never overwrite existing files under `/etc/sensorpajen/`.
+
+### Automated Verification
+
+Provide a script (e.g., `scripts/verify-deb.sh`) that runs the build and linting steps in a clean environment. The script should:
+
+```
+#!/bin/bash
+set -e
+
+./ci/build-debian.sh    # builds the deb into a temp directory
+lintian sensorpajen_*.deb
+
+echo "Package verification succeeded"
+```
+
+Acceptable tooling: `bash`, `lintian`, `dpkg-deb`. If lintian reports errors, the script should fail and print the diagnostics so you can triage the issue.
+```
+
+#### 10. Installation Test
+
+```bash
+# Install
+sudo dpkg -i sensorpajen_2.0.0_armhf.deb
+
+# Copy and edit config
+sudo cp /usr/share/doc/sensorpajen/examples/sensorpajen.env.example /etc/sensorpajen/sensorpajen.env
+sudo cp /usr/share/doc/sensorpajen/examples/sensors.json.example /etc/sensorpajen/sensors.json
+sudo nano /etc/sensorpajen/sensorpajen.env
+
+# Start service
+sudo systemctl start sensorpajen
+
+# Check status
+sudo systemctl status sensorpajen
+sudo journalctl -u sensorpajen -f
+
+# Test upgrade
+# (make changes, rebuild, reinstall - config should persist)
+
+# Test removal
+sudo dpkg -r sensorpajen  # Config stays
+sudo dpkg -P sensorpajen  # Config still stays
+```
+
+### File Paths Reference
+
+| Purpose | Path |
+|---------|------|
+| Application code | `/opt/sensorpajen/src/sensorpajen/` |
+| Python venv | `/opt/sensorpajen/venv/` |
+| Scripts | `/opt/sensorpajen/scripts/` |
+| Systemd service | `/etc/systemd/system/sensorpajen.service` |
+| Active config | `/etc/sensorpajen/sensorpajen.env`, `/etc/sensorpajen/sensors.json` |
+| Discovery data | `/etc/sensorpajen/discovered_sensors.json` |
+| Example configs | `/usr/share/doc/sensorpajen/examples/*.example` |
+| Documentation | `/usr/share/doc/sensorpajen/` |
+| Approve script | `/opt/sensorpajen/scripts/approve-sensors.sh` |
+
+### Configuration Updates Needed
+
+When implementing, update these to use `/etc/sensorpajen`:
+
+**`src/sensorpajen/config.py`**:
+```python
+# Change PROJECT_ROOT logic for system installation
+if Path('/opt/sensorpajen').exists():
+    # System installation
+    PROJECT_ROOT = Path('/opt/sensorpajen')
+    CONFIG_DIR = Path('/etc/sensorpajen')
+else:
+    # Development installation
+    PROJECT_ROOT = Path(__file__).parent.parent.parent
+    CONFIG_DIR = PROJECT_ROOT / "config"
+```
+
+**`scripts/approve-sensors.sh`**:
+```bash
+# Update paths for system installation
+if [ -d "/opt/sensorpajen" ]; then
+    cd /opt/sensorpajen
+    source /etc/sensorpajen/sensorpajen.env
+    source venv/bin/activate
+else
+    # Development mode
+    cd "$(dirname "$0")/.."
+    source config/sensorpajen.env
+    source .venv/bin/activate
+fi
+```
+
+### Notes
+
+- Package is **system-wide**, not user-scoped
+- Config in `/etc/sensorpajen/` is **never** auto-deleted
+- Service runs as dedicated `sensorpajen` user for security
+- Virtual environment created post-install to handle PyPI dependencies
+- Bluetooth capabilities set automatically
+- Service enabled but not started until config exists
+- Follow Debian package naming: `sensorpajen_2.0.0_armhf.deb`
+- Test on fresh Pi before considering complete
+
+---
+
+## Task: Add Auto-Discovery and Approval Flow for Sensors
+
+### Problem Statement
+
+Adding new sensors currently requires manually editing `sensors.json`, which is error-prone and inconvenient.
+The system should automatically detect new sensors and provide a controlled way for users to approve or ignore them.
+
+---
+
+## Goal
+
+Implement **automatic sensor discovery** with a **user approval workflow** that:
+
+* Detects new sensors automatically
+* Notifies the user when new sensors are discovered
+* Allows the user to approve or ignore sensors via a script
+* Automatically updates `sensors.json` for approved sensors
+* Restarts the service after configuration changes
+
+---
+
+## Scope
+
+### In Scope
+
+* Sensor auto-discovery
+* Tracking newly discovered sensors
+* Notification via `ntfy`
+* Interactive user script for approving/ignoring sensors
+* Updating `sensors.json`
+* Restarting the service via systemd
+
+### Out of Scope
+
+* Web UI
+* Authentication mechanisms beyond existing system access
+* Changes to sensor hardware or firmware
+* Long-term sensor management (removal, editing, etc.)
+
+---
+
+## Functional Requirements
+
+### 1. Sensor Auto-Discovery
+
+* The service must detect sensors that are not present in `sensors.json`
+* Each newly discovered sensor must have a stable unique identifier
+* Discovered-but-unapproved sensors must **not** be added automatically
+
+---
+
+### 2. Discovered Sensor Storage
+
+* Newly discovered sensors must be stored in `config/discovered_sensors.json`
+* Stored data must include:
+  * `mac` - MAC address (unique identifier)
+  * `name` - Advertised device name (e.g., "ATC_1234AB")
+  * `rssi` - Signal strength in dBm
+  * `first_seen` - ISO timestamp of first discovery
+  * `last_seen` - ISO timestamp of most recent advertisement
+  * `sample_reading` - One example reading with temperature, humidity, battery data
+  * `status` - One of: "pending", "approved", "ignored"
+  * `ignored_at` - ISO timestamp when ignored (if status is "ignored")
+  * `ignore_reason` - Optional user-provided reason for ignoring
+* Approved sensors must have their status updated to "approved"
+* Ignored sensors must remain in the file with status "ignored"
+
+---
+
+### 3. Notification via ntfy
+
+* When a new sensor is discovered:
+  * Send a notification to the configured `ntfy` topic via curl
+  * Include at least:
+    * Sensor MAC address
+    * Sensor name
+    * Last seen timestamp
+    * Instruction that user action is required
+* Configuration (in `config/sensorpajen.env`):
+  * `NTFY_ENABLED` - true/false to enable/disable notifications
+  * `NTFY_URL` - ntfy server URL (e.g., "https://ntfy.sh")
+  * `NTFY_TOPIC` - Topic to publish to
+  * `NTFY_TOKEN` - Authentication token (sent in header)
+* ntfy is optional - system must work without it:
+  * If `NTFY_ENABLED=false`, skip notifications
+  * If ntfy is unreachable, log error and continue
+  * Discovery and approval must work even if ntfy fails
+* The user must only be notified once per discovered sensor
+---
+
+### 4. User Approval Script
+
+Provide a CLI command `sensorpajen approve-sensors` that:
+
+* Lists all sensors with status "pending" or "ignored"
+* For each sensor, displays:
+  * MAC address
+  * Advertised name (e.g., "ATC_1234AB")
+  * Last seen timestamp
+  * Sample reading (temperature, humidity, battery)
+  * Current status (pending/ignored)
+* For each sensor, allows the user to:
+  * Approve the sensor (add to `sensors.json`)
+  * Ignore the sensor (mark as ignored)
+  * Skip (leave as pending for later)
+* If approving:
+  * Prompt for a sensor name (required, human-readable)
+  * Pre-fill comment field with extended metadata (MAC, device name, last seen, sample reading)
+  * Allow user to edit or keep the pre-filled comment (optional)
+* If ignoring:
+  * Prompt for optional reason
+  * Update status to "ignored" with timestamp
+* Interactive mode only (no batch/automated approval)
+
+---
+
+### 5. Updating sensors.json
+
+* When a sensor is approved:
+  * Add it to `sensors.json` (only if MAC doesn't already exist)
+  * Include:
+    * `mac` - MAC address from discovery
+    * `name` - User-provided human-readable name
+    * `comment` - User-edited comment (pre-filled with metadata)
+* The file must remain valid JSON
+* Existing sensors must not be modified
+* If MAC already exists in `sensors.json`, skip adding (renaming is done manually in the file)
+* Update status to "approved" in `discovered_sensors.json`
+
+---
+
+### 6. Configuration Reload
+
+* The service must automatically reload `sensors.json` every 15 minutes
+* No service restart required after approval
+* If `sensors.json` is modified:
+  * Load new sensor list
+  * Start monitoring newly added sensors
+  * Continue monitoring existing sensors without interruption
+* Log configuration reload events
+
+---
+
+## Non-Functional Requirements
+
+* Must be safe to run on a Raspberry Pi
+* Must not require a GUI
+* Must fail gracefully if:
+
+  * `ntfy` is unreachable
+  * The user aborts the approval script
+* Logging must clearly indicate:
+
+  * Discovery events
+  * Notifications sent
+  * Approval or ignore decisions
+
+---
+
+## Acceptance Criteria
+
+* A new sensor is automatically detected and added to `discovered_sensors.json` with status "pending"
+* Extended metadata (MAC, name, RSSI, timestamps, sample reading) is stored
+* A notification is sent via `ntfy` when a sensor is discovered (if enabled)
+* The approval CLI command (`sensorpajen approve-sensors`) lists pending and ignored sensors
+* The CLI displays MAC, name, last seen, and sample reading for each sensor
+* The user can approve a sensor with a custom name
+* The comment field is pre-filled with metadata and user can edit it
+* The user can ignore a sensor with an optional reason
+* Previously ignored sensors can be approved in a later CLI run
+* Approved sensors appear correctly in `sensors.json` (mac + name + comment only)
+* Sensors already in `sensors.json` are not added again (no duplicates)
+* The service automatically reloads `sensors.json` every 15 minutes
+* New sensors are monitored without service restart
+* Ignored sensors are stored with `ignored_at` timestamp and optional `ignore_reason`
+* ntfy failures do not prevent discovery or approval workflow
+
+---
+
+## Notes for Implementation
+
+* Prefer environment-based configuration (no `.ini` files)
+* Keep the discovery logic separate from user interaction logic
+* Avoid race conditions between discovery and approval
+* Assume multiple sensors may be discovered before user action
+* Use MAC address as unique identifier for sensors
+* ntfy notification format: `curl -H "Authorization: Bearer $NTFY_TOKEN" -d "message" $NTFY_URL/$NTFY_TOPIC`
+* Config reload: Use a timer thread that checks file mtime or reloads every 15 minutes
+* Pre-filled comment example: `"MAC: A4:C1:38:12:34:56, Name: ATC_1234AB, Last seen: 2025-12-27T14:30:00, Temp: 21.5°C, Humidity: 45%, Battery: 87%"`
+
+---
+
+## Implementation Details
+
+### File Locations
+* Discovered sensors: `config/discovered_sensors.json`
+* Known sensors: `config/sensors.json` (existing)
+* Configuration: `config/sensorpajen.env` (add ntfy settings)
+
+### New CLI Command
+* Entry point: `sensorpajen approve-sensors`
+* Add to `pyproject.toml` under `[project.scripts]`
+
+### Configuration Variables (add to sensorpajen.env)
+```bash
+# ntfy notifications (optional)
+NTFY_ENABLED=true
+NTFY_URL=https://ntfy.sh
+NTFY_TOPIC=sensorpajen
+NTFY_TOKEN=tk_xxxxxxxxxxxxx
+
+# Config reload interval (seconds)
+CONFIG_RELOAD_INTERVAL=900  # 15 minutes
+```
+
+### discovered_sensors.json Structure
+```json
+[
+  {
+    "mac": "A4:C1:38:12:34:56",
+    "name": "ATC_1234AB",
+    "rssi": -65,
+    "first_seen": "2025-12-27T14:30:15",
+    "last_seen": "2025-12-27T14:35:42",
+    "sample_reading": {
+      "temperature": 21.5,
+      "humidity": 45,
+      "battery_percent": 87,
+      "battery_voltage": 2950
+    },
+    "status": "pending"
+  },
+  {
+    "mac": "A4:C1:38:AB:CD:EF",
+    "name": "ATC_ABCDEF",
+    "rssi": -72,
+    "first_seen": "2025-12-27T15:00:00",
+    "last_seen": "2025-12-27T15:10:00",
+    "sample_reading": {
+      "temperature": 19.8,
+      "humidity": 52,
+      "battery_percent": 65,
+      "battery_voltage": 2800
+    },
+    "status": "ignored",
+    "ignored_at": "2025-12-27T15:15:00",
+    "ignore_reason": "Test sensor, not needed"
+  }
+]
+```
+
+### sensors.json Entry (after approval)
+```json
+{
+  "mac": "A4:C1:38:12:34:56",
+  "name": "Living Room",
+  "comment": "MAC: A4:C1:38:12:34:56, Name: ATC_1234AB, Last seen: 2025-12-27T14:35:42, Temp: 21.5°C, Humidity: 45%, Battery: 87%"
+}
+```
+
+---
+
+If you want, I can also:
+
+* Split this into **multiple smaller tasks**
+* Add a **definition of done** section
+* Provide a **suggested file/module structure**
+* Write a **follow-up roadmap entry** for sensor management
+
+Just tell me how you want to evolve it next.
+
+## Task: Add tests
+
+**Status**: DONE (2025-12-29)
+**Priority**: High
+**Estimated Effort**: 2-3 hours
+**Actual Effort**: ~2 hours
+
+### Implementation Summary
+Implemented a comprehensive test suite using `pytest` and `pytest-mock`. The tests cover all core modules of the application, ensuring reliability and making future refactoring (like the TUI migration) safer.
+
+### Key Features Implemented
+- **Unit Tests for config.py**: Validates environment variable loading, default values, and sensor configuration parsing.
+- **Unit Tests for mqtt_publisher.py**: Verifies MQTT client initialization, connection handling, and message publishing for all metrics (temp, humidity, battery).
+- **Unit Tests for sensor_reader.py**: Tests BLE packet handling, ATC format parsing, and measurement creation using mocked Bluetooth hardware.
+- **Unit Tests for discovery_manager.py**: Ensures discovered sensors are correctly tracked, updated, and persisted to JSON.
+- **Test Infrastructure**: Added `conftest.py` for global mocks (Bluetooth, Environment) and configured `pyproject.toml` with dev dependencies.
+
+### Testing Results
+- ✅ 17 tests passed across 4 test files.
+- ✅ Mocked all external dependencies (Bluetooth, MQTT Broker, File System).
+- ✅ Verified correct handling of both known and unknown sensors.
+

ROADMAP-v2.md

@@ -0,0 +1,564 @@
+# ROADMAP: Modernizing Sensorpajen
+
+## Overview
+
+This roadmap outlines the migration from the current tmux/cron-based system to a modern systemd service running on Raspberry Pi.
+
+**Migration Date**: Started December 27, 2025  
+**Target Completion**: TBD
+
+---
+
+## Current State
+
+### What We Have
+- LYWSD03MMC.py: Main Bluetooth sensor reader
+- temperatur_koksfonstret.py: DHT11 sensor reader (to be removed)
+- bluetooth_utils.py: Bluetooth utility functions
+- sensorer.ini: MAC address to sensor name mapping
+- sendToMQTT.sh: MQTT publishing callback (hardcoded credentials)
+- startup.sh/sensorer.sh: tmux-based startup scripts
+- Cron jobs for scheduling
+
+### Known Issues
+- MQTT credentials hardcoded in shell scripts
+- Legacy pirate_audio references in startup.sh
+- Manual tmux orchestration
+- Mixed configuration sources
+- DHT11 functionality to be removed
+
+---
+
+## Target Architecture
+
+### Final Structure
+```
+sensorpajen/
+├── src/
+│   └── sensorpajen/
+│       ├── __init__.py
+│       ├── main.py              # Entry point
+│       ├── config.py            # Configuration management
+│       ├── sensor_reader.py     # Bluetooth sensor logic
+│       ├── mqtt_publisher.py    # MQTT publishing
+│       └── utils.py             # Utilities (from bluetooth_utils.py)
+├── config/                      # Configuration directory (relative)
+│   ├── sensors.json.example     # Sensor mapping template
+│   ├── sensorpajen.env.example  # Environment file template
+│   ├── sensors.json             # Actual sensor mapping (not in git)
+│   └── sensorpajen.env          # Actual environment file (not in git)
+├── debian/                      # APT package files
+│   ├── control
+│   ├── rules
+│   ├── changelog
+│   └── ...                      # Other Debian package files
+├── pyproject.toml               # Project metadata and dependencies
+├── requirements.txt             # Dependencies (bluepy, paho-mqtt)
+├── README.md                    # Updated documentation
+├── AGENTS.md                    # Agent guidelines
+├── ROADMAP.md                   # This file
+├── legacy/                      # Legacy scripts (moved here temporarily)
+│   ├── LYWSD03MMC.py
+│   ├── temperatur_koksfonstret.py
+│   ├── sendToMQTT.sh
+│   ├── startup.sh
+│   ├── sensorer.sh
+│   └── sensorer.ini
+└── systemd/
+    ├── sensorpajen.service      # Systemd service unit
+    └── README.md                # Systemd installation instructions
+```
+
+### Configuration Strategy
+
+Using relative paths for portability across systems:
+
+1. **Sensor Mapping**: `config/sensors.json` (relative to project root)
+   - Maps MAC addresses to sensor names
+   - JSON format for Python ease
+   - Not committed to git (use sensors.json.example as template)
+
+2. **MQTT Credentials**: `config/sensorpajen.env` (relative to project root)
+   - Contains sensitive MQTT configuration
+   - Permissions: 0600 (owner read/write only)
+   - Not committed to git (use sensorpajen.env.example as template)
+
+3. **Environment Variables** (via systemd EnvironmentFile):
+   ```
+   MQTT_HOST=192.168.0.114
+   MQTT_USER=hasse
+   MQTT_PASSWORD=casablanca
+   MQTT_CLIENT_ID=mibridge
+   SENSOR_CONFIG_FILE=config/sensors.json
+   ```
+
+4. **Git Ignore**: Add to .gitignore:
+   ```
+   config/sensors.json
+   config/sensorpajen.env
+   ```
+
+---
+
+## Migration Phases
+
+### Phase 1: Preparation & Cleanup ✅ DONE (2025-12-27)
+**Goal**: Reorganize repository without breaking existing functionality
+
+**Notes**: 
+- Created modern Python package structure with src/ layout
+- Converted INI sensor config to JSON format (sensors.json.example)
+- Environment-based configuration instead of hardcoded values
+- DHT11 sensor functionality removed as planned
+- Legacy scripts preserved in legacy/ folder
+
+#### Tasks:
+- ✅ Create new directory structure
+- ✅ Create pyproject.toml with dependencies
+- ✅ Remove DHT11 functionality
+- ✅ Move legacy scripts to legacy/ folder
+- ✅ Create config file templates (sensors.json.example, sensorpajen.env.example)
+- ✅ Preserve requirements.txt for backward compatibility
+
+---
+
+### Phase 2: Python Package Structure ✅ DONE (2025-12-27)
+**Goal**: Create modern Python package with proper entry point
+
+**Notes**:
+- Used src/ layout for better packaging practices
+- Direct Python MQTT integration (no shell script callbacks)
+- ATC firmware BLE advertisement reading (passive scanning)
+- Watchdog thread for BLE connection recovery
+- Clean separation of concerns (config, MQTT, sensors, main)
+
+#### Tasks:
+- ✅ Created src/sensorpajen/__init__.py with version info
+- ✅ Created src/sensorpajen/config.py
+  - Environment variable loading with validation
+  - SensorConfig class for JSON sensor mapping
+  - Relative path resolution (PROJECT_ROOT)
+  - Configuration validation and logging
+- ✅ Created src/sensorpajen/utils.py
+  - Ported bluetooth_utils.py (MIT licensed, Colin GUYON)
+  - BLE scanning and advertisement parsing
+- ✅ Created src/sensorpajen/mqtt_publisher.py
+  - MQTTPublisher class with connection management
+  - Direct publishing (replaces sendToMQTT.sh)
+  - Automatic reconnection support
+  - Battery data publishing (optional)
+- ✅ Created src/sensorpajen/sensor_reader.py
+  - SensorReader class for BLE scanning
+  - ATC packet parsing
+  - Duplicate packet filtering
+  - Watchdog for BLE recovery
+  - Measurement dataclass
+- ✅ Created src/sensorpajen/main.py
+  - Application entry point
+  - Signal handling (SIGTERM, SIGINT)
+  - Graceful shutdown
+  - Logging to stdout for journald
+
+---
+
+### Phase 3: Configuration Migration ✅ DONE (2025-12-27)
+**Goal**: Replace .ini file with JSON and environment variables
+
+**Notes**: Templates created in Phase 1, successfully tested on Raspberry Pi
+
+#### Tasks:
+1. Create sensor mapping converter script
+   - Read sensorer.ini
+   - Output to sensors.json
+   ```json
+   {
+     "sensors": [
+       {
+         "mac": "A4:C1:38:98:7B:B6",
+         "name": "mi_temp_1"
+       },
+       {
+         "mac": "A4:C1:38:29:03:0D",
+         "name": "mi_temp_2"
+       }
+     ]
+   }
+   ```
+configuration file templates
+   - `config/sensorpajen.env.example`
+   ```bash
+   # MQTT Configuration
+   MQTT_HOST=192.168.0.114
+   MQTT_PORT=1883
+   MQTT_USER=hasse
+   MQTT_PASSWORD=casablanca
+   MQTT_CLIENT_ID=mibridge
+   
+   # Sensor Configuration (relative to project root)
+   SENSOR_CONFIG_FILE=config/sensors.json
+   
+   # Application Settings
+   WATCHDOG_TIMEOUT=5
+   ENABLE_BATTERY=true
+   LOG_LEVEL=INFO
+   ```
+
+   - `config/sensors.json.example`
+   ```json
+   {
+     "sensors": [
+       {
+         "mac": "A4:C1:38:98:7B:B6",
+         "name": "mi_temp_1",
+         "comment": "Example sensor"
+       }
+     ]
+   }
+   ```
+
+3. Copy templates to actual config files (not in git):
+   ```bash
+   cp config/sensorpajen.env.example config/sensorpajen.env
+   cp config/sensors.json.example config/sensors.json
+   chmod 600 config/sensorpajen.env
+   # Edit both files with your actual configurationnsorpajen/sensorpajen.env
+   chmod 600 /home/fredrik/.config/sensorpajen/sensorpajen.env
+   ```
+
+4. Document all configuration variables in README
+
+---
+config/sensorpajen.env
+   config/sensors.json
+   *.deb
+   debian/.debhelper/
+   debian/sensorpajen/
+   debian/files
+   debian/*.log
+   debian/*.substvars
+### Phase 4: Virtual Environment & Dependencies ✅ DONE (2025-12-27)
+**Goal**: Set up isolated Python environment
+
+**Notes**: Tested on Raspberry Pi, paho-mqtt v2.x compatibility fixed
+
+#### Tasks:
+1. Create virtual environment:
+   ```bash
+   python3 -m venv .venv
+   ```
+
+2. Update .gitignore:
+   ```
+   .venv/
+   __pycache__/
+   *.pyc
+   .env
+   sensorpajen.env
+   ```
+
+3. Install dependencies:
+   ```bash
+   source .venv/bin/activate
+   pip install --upgrade pip
+   pip install bluepy paho-mqtt
+   pip install -e .  # Install package in development mode
+   ```
+
+4. Document virtual environment usage in README
+
+---✅ DONE (2025-12-27)
+**Goal**: Allow non-root user to access Bluetooth
+
+**Notes**: Tested on Raspberry Pi with setcap on actual Python binary
+### Phase 5: Bluetooth Permissions ✅ DONE (2025-12-27)
+**Goal**: Allow non-root user to access Bluetooth
+
+**Notes**: Tested on Raspberry Pi with setcap on actual Python binary
+
+#### Tasks:
+- ✅ Bluetooth capabilities set with setcap
+- ✅ Documented in SETUP_ON_PI.md with correct readlink -f usage
+- ✅ Tested successfully on Raspberry Pi
+
+---
+
+### Phase 6: Systemd Service Creation ✅ DONE (2025-12-27)
+**Goal**: Create and configure systemd user service
+
+**Notes**:
+- User service for easier management (no sudo required)
+- Service ready for installation on Raspberry Pi
+- Comprehensive documentation provided
+- **Important discoveries**:
+  - `AmbientCapabilities` does NOT work in user services (only system services)
+  - Must use `setcap` on the Python binary instead
+  - `NoNewPrivileges=true` prevents file capabilities from working - must be disabled
+  - Capabilities must be set on actual binary, not symlinks: `setcap ... $(readlink -f python3)`
+
+#### Tasks:
+- ✅ Created systemd/sensorpajen.service
+- ✅ Created systemd/README.md with full documentation
+- ✅ Service management and troubleshooting guides included
+- ✅ Tested and verified working on Raspberry Pi
+
+---
+
+### Phase 7: Testing & Validation ✅ DONE (2025-12-27)
+**Goal**: Verify new service works before removing legacy
+
+**Notes**:
+- Service tested and running successfully
+- Legacy cron/tmux system stopped
+- All sensors reporting correctly via systemd service
+
+#### Tasks:
+- ✅ Stopped legacy cron/tmux processes
+- ✅ Started new systemd service
+- ✅ Monitored logs - no errors
+- ✅ Verified all 8 sensors reporting
+- ✅ Confirmed MQTT publishing working
+- ✅ Tested service restart and auto-recovery
+
+---
+
+### Phase 8: APT Package Creation ✅ DONE (2025-12-27)
+**Goal**: Create Debian package for easy installation on Raspberry Pi
+
+**Notes**:
+- Complete debian/ directory structure created
+- System-wide installation to /opt/sensorpajen
+- Configuration in /etc/sensorpajen
+- Dedicated sensorpajen system user
+- Automatic venv creation in postinst
+- Bluetooth capabilities set automatically
+- Config preserved on remove/purge for safety
+- Dual-mode support: system installation and development
+- config.py auto-detects installation type
+
+#### Files Created:
+- ✅ debian/control - Package metadata and dependencies
+- ✅ debian/compat - Debhelper compatibility level
+- ✅ debian/changelog - Package version history
+- ✅ debian/rules - Build instructions
+- ✅ debian/install - File installation mappings
+- ✅ debian/postinst - Post-installation script (user, venv, setcap)
+- ✅ debian/prerm - Pre-removal script (stop service)
+- ✅ debian/postrm - Post-removal script (cleanup)
+- ✅ debian/sensorpajen.service - System-wide systemd unit
+
+#### Code Updates:
+- ✅ Updated src/sensorpajen/config.py to detect system installation
+  - Checks for /opt/sensorpajen existence
+  - Uses /etc/sensorpajen for config in system mode
+  - Falls back to PROJECT_ROOT/config for development
+- ✅ Updated scripts/approve-sensors.sh for dual-mode operation
+  - Detects system vs development installation
+  - Uses correct venv and config paths
+- ✅ Created scripts/verify-deb.sh - Automated build and verification
+
+#### Package Details:
+- Package name: sensorpajen
+- Version: 2.0.0-dev
+- Architecture: all
+- System paths:
+  - Application: /opt/sensorpajen/
+  - Configuration: /etc/sensorpajen/
+  - Service file: /etc/systemd/system/sensorpajen.service
+  - Examples: /usr/share/doc/sensorpajen/examples/
+- Runs as dedicated sensorpajen user (system account)
+- Auto-enables service but waits for configuration before starting
+
+#### Build and Test:
+```bash
+# Build package
+./scripts/verify-deb.sh
+
+# Or manually:
+dpkg-buildpackage -us -uc -b
+lintian ../sensorpajen_*.deb
+
+# Install on Raspberry Pi:
+scp ../sensorpajen_*.deb pi@raspberrypi:~/
+ssh pi@raspberrypi
+sudo apt install ./sensorpajen_*.deb
+
+# Configure:
+sudo nano /etc/sensorpajen/sensorpajen.env
+sudo nano /etc/sensorpajen/sensors.json
+
+# Start:
+sudo systemctl start sensorpajen
+sudo journalctl -u sensorpajen -f
+```
+
+---
+
+### Phase 9: Cleanup & Documentation ✅ DONE (2025-12-27)
+**Goal**: Remove legacy code and finalize documentation
+
+**Notes**:
+- Legacy cron/tmux scripts removed
+- Documentation focused on practical usage
+- INSTALL.md created for sysadmins
+
+#### Tasks:
+- ✅ Deleted legacy/ folder (old cron/tmux scripts)
+- ✅ Created INSTALL.md with concise installation guide
+- ✅ Updated README.md troubleshooting section
+- ✅ Documentation assumes sysadmin familiarity
+
+---
+
+## Migration Complete! 🎉
+
+All phases completed. The system has been successfully migrated from a legacy cron/tmux-based system to a modern systemd service with:
+
+- ✅ Python package structure
+- ✅ Environment-based configuration (no .ini files)
+- ✅ Systemd user service with auto-restart
+- ✅ Automatic sensor discovery with approval workflow
+- ✅ Configuration auto-reload (no restart needed)
+- ✅ ntfy notifications for new sensors
+- ✅ Comprehensive documentation
+
+**Version**: 2.0.0-dev  
+**Status**: Production-ready
+   ```markdown
+   ## Installation
+   
+   ### 1. Clone Repository
+   git clone <repo> /home/fredrik/dev/sensorpajen
+   cd /home/fredrik/dev/sensorpajen
+   
+   ### 2. Create Virtual Environment
+   python3 -m venv .venv
+   source .venv/bin/activate
+   pip install -e .
+   
+   ### 3. Configure
+   mkdir -p ~/.config/sensorpajen
+   cp systemd/sensorpajen.env.example ~/.config/sensorpajen/sensorpajen.env
+   # Edit configuration
+   nano ~/.config/sensorpajen/sensorpajen.env
+   chmod 600 ~/.config/sensorpajen/sensorpajen.env
+   
+   ### 4. Convert Sensor Configuration
+   # Create sensors.json from your sensor list
+   
+   ### 5. Install Service
+   cp systemd/sensorpajen.service ~/.config/systemd/user/
+   systemctl --user daemon-reload
+   systemctl --user enable sensorpajen
+   systemctl --user start sensorpajen
+   
+   ### 6. Verify
+   systemctl --user status sensorpajen
+   journalctl --user -u sensorpajen -f
+   ```
+
+5. Add troubleshooting section:
+   - Bluetooth permission issues
+   - MQTT connection problems
+   - Service won't start
+   - Log locations
+
+---
+
+## Configuration File Locations (Linux Best Practices)
+
+### User Service Configuration
+- **Service files**: `~/.config/systemd/user/`
+- **Application config**: `~/.config/sensorpajen/`
+- **Environment file**: `~/.config/sensorpajen/sensorpajen.env` (0600)
+- **Sensor mapping**: `~/.config/sensorpajen/sensors.json` (0644)
+
+### System Service (Alternative - Not Recommended)
+If running as system service (not user service):
+- **Service file**: `/etc/systemd/system/sensorpajen.service`
+- **Config directory**: `/etc/sensorpajen/`
+- **Environment file**: `/etc/sensorpajen/sensorpajen.env` (0600)
+
+**Recommendation**: Use user service (current approach) since:
+- No sudo required for service management
+- Easier permission management
+- Better security isolation
+- Simpler Bluetooth access
+
+---
+
+## Success Criteria
+
+The migration is complete when:
+
+- ✅ Service starts automatically on boot
+- ✅ All 8 Bluetooth sensors are being read
+- ✅ MQTT messages are published correctly
+- ✅ Service recovers automatically from crashes
+- ✅ No hardcoded credentials in code
+- ✅ Logs are visible via journalctl
+- ✅ DHT11 functionality completely removed
+- ✅ Legacy scripts removed
+- ✅ Documentation is complete and accurate
+- ✅ Service runs as user (not root)
+- ✅ Virtual environment is working
+
+---
+
+## Rollback Plan
+
+If issues arise during migration:
+
+1. Stop new service:
+   ```bash
+   systemctl --user stop sensorpajen
+   systemctl --user disable sensorpajen
+   ```
+
+2. Restore legacy scripts from legacy/ folder:
+   ```bash
+   cp legacy/* .
+   ```
+
+3. Restore cron jobs:
+   ```bash
+   crontab -e
+   # Uncomment:
+   # @reboot /home/fredrik/dev/sensorpajen/sensorer.sh
+   ```
+
+4. Reboot or manually start tmux session
+
+---
+
+## Future Enhancements
+
+After successful migration, consider:
+
+- [ ] Add Prometheus metrics endpoint
+- [ ] Add systemd watchdog support
+- [ ] Implement graceful sensor failure handling
+- [ ] Add MQTT TLS support
+- [ ] Create web dashboard for sensor status
+- [ ] Add sensor calibration configuration
+- [ ] Implement sensor auto-discovery
+- [ ] Add health check endpoint
+
+---
+
+## Notes
+
+- Keep legacy scripts during migration for safety
+- Test thoroughly before removing cron jobs
+- Monitor for at least 1-2 weeks before final cleanup
+- Document any issues encountered during migration
+- Take notes of actual MAC addresses and sensor names during conversion
+
+---
+
+## References
+
+- systemd user services: `man systemd.service`
+- XDG Base Directory: `~/.config/` for user configuration
+- Bluetooth capabilities: `man capabilities`
+- journalctl: `man journalctl`
+- Python logging: https://docs.python.org/3/library/logging.html

ROADMAP.md

@@ -1,631 +1,44 @@
-# ROADMAP: Modernizing Sensorpajen
+# ROADMAP: Sensorpajen Modernization & TUI
 
 ## Overview
-
-This roadmap outlines the migration from the current tmux/cron-based system to a modern systemd service running on Raspberry Pi.
-
-**Migration Date**: Started December 27, 2025  
-**Target Completion**: TBD
+This roadmap defines the evolution of Sensorpajen from a CLI-based tool to a full-featured TUI application for sensor management and monitoring.
 
 ---
 
-## Current State
-
-### What We Have
-- LYWSD03MMC.py: Main Bluetooth sensor reader
-- temperatur_koksfonstret.py: DHT11 sensor reader (to be removed)
-- bluetooth_utils.py: Bluetooth utility functions
-- sensorer.ini: MAC address to sensor name mapping
-- sendToMQTT.sh: MQTT publishing callback (hardcoded credentials)
-- startup.sh/sensorer.sh: tmux-based startup scripts
-- Cron jobs for scheduling
-
-### Known Issues
-- MQTT credentials hardcoded in shell scripts
-- Legacy pirate_audio references in startup.sh
-- Manual tmux orchestration
-- Mixed configuration sources
-- DHT11 functionality to be removed
-
----
-
-## Target Architecture
-
-### Final Structure
-```
-sensorpajen/
-├── src/
-│   └── sensorpajen/
-│       ├── __init__.py
-│       ├── main.py              # Entry point
-│       ├── config.py            # Configuration management
-│       ├── sensor_reader.py     # Bluetooth sensor logic
-│       ├── mqtt_publisher.py    # MQTT publishing
-│       └── utils.py             # Utilities (from bluetooth_utils.py)
-├── config/                      # Configuration directory (relative)
-│   ├── sensors.json.example     # Sensor mapping template
-│   ├── sensorpajen.env.example  # Environment file template
-│   ├── sensors.json             # Actual sensor mapping (not in git)
-│   └── sensorpajen.env          # Actual environment file (not in git)
-├── debian/                      # APT package files
-│   ├── control
-│   ├── rules
-│   ├── changelog
-│   └── ...                      # Other Debian package files
-├── pyproject.toml               # Project metadata and dependencies
-├── requirements.txt             # Dependencies (bluepy, paho-mqtt)
-├── README.md                    # Updated documentation
-├── AGENTS.md                    # Agent guidelines
-├── ROADMAP.md                   # This file
-├── legacy/                      # Legacy scripts (moved here temporarily)
-│   ├── LYWSD03MMC.py
-│   ├── temperatur_koksfonstret.py
-│   ├── sendToMQTT.sh
-│   ├── startup.sh
-│   ├── sensorer.sh
-│   └── sensorer.ini
-└── systemd/
-    ├── sensorpajen.service      # Systemd service unit
-    └── README.md                # Systemd installation instructions
-```
-
-### Configuration Strategy
-
-Using relative paths for portability across systems:
-
-1. **Sensor Mapping**: `config/sensors.json` (relative to project root)
-   - Maps MAC addresses to sensor names
-   - JSON format for Python ease
-   - Not committed to git (use sensors.json.example as template)
-
-2. **MQTT Credentials**: `config/sensorpajen.env` (relative to project root)
-   - Contains sensitive MQTT configuration
-   - Permissions: 0600 (owner read/write only)
-   - Not committed to git (use sensorpajen.env.example as template)
-
-3. **Environment Variables** (via systemd EnvironmentFile):
-   ```
-   MQTT_HOST=192.168.0.114
-   MQTT_USER=hasse
-   MQTT_PASSWORD=casablanca
-   MQTT_CLIENT_ID=mibridge
-   SENSOR_CONFIG_FILE=config/sensors.json
-   ```
-
-4. **Git Ignore**: Add to .gitignore:
-   ```
-   config/sensors.json
-   config/sensorpajen.env
-   ```
-
----
-
-## Migration Phases
-
-### Phase 1: Preparation & Cleanup ✅ DONE (2025-12-27)
-**Goal**: Reorganize repository without breaking existing functionality
+## Phase 1: Modern TUI Management & Data Persistence ✅ DONE (2025-12-29)
+**Goal**: Replace the basic CLI with a full-screen Textual TUI and improve discovery data persistence.
 
 **Notes**:
-- Created modern Python package structure with src/ layout
-- Converted INI sensor config to JSON format (sensors.json.example)
-- Environment-based configuration instead of hardcoded values
-- DHT11 sensor functionality removed as planned
-- Legacy scripts preserved in legacy/ folder
+- Migrated discovery data to SQLite for better metadata tracking.
+- Implemented a full-screen TUI using Textual with Discovery, Configured, and Ignored views.
+- Added support for interactive Approve, Ignore, Edit, and Remove actions.
 
-#### Tasks:
-- ✅ Create new directory structure
-- ✅ Create pyproject.toml with dependencies
-- ✅ Remove DHT11 functionality
-- ✅ Move legacy scripts to legacy/ folder
-- ✅ Create config file templates (sensors.json.example, sensorpajen.env.example)
-- ✅ Preserve requirements.txt for backward compatibility
+### Tasks:
+- ✅ **Database Migration**: Replace `discovered_sensors.json` with a SQLite database.
+- ✅ **Textual TUI Scaffolding**: Initialize a full-screen TUI using the `Textual` library.
+- ✅ **Sensor Management View**: Interactive management of all sensor states.
+- ✅ **Branching Strategy**: Developed in `feature/tui-management`.
 
 ---
 
-### Phase 2: Python Package Structure ✅ DONE (2025-12-27)
-**Goal**: Create modern Python package with proper entry point
+## Phase 2: Live Monitoring & Global Configuration
+**Goal**: Add real-time visibility and full system configuration to the TUI.
 
-**Notes**:
-- Used src/ layout for better packaging practices
-- Direct Python MQTT integration (no shell script callbacks)
-- ATC firmware BLE advertisement reading (passive scanning)
-- Watchdog thread for BLE connection recovery
-- Clean separation of concerns (config, MQTT, sensors, main)
-
-#### Tasks:
-- ✅ Created src/sensorpajen/__init__.py with version info
-- ✅ Created src/sensorpajen/config.py
-  - Environment variable loading with validation
-  - SensorConfig class for JSON sensor mapping
-  - Relative path resolution (PROJECT_ROOT)
-  - Configuration validation and logging
-- ✅ Created src/sensorpajen/utils.py
-  - Ported bluetooth_utils.py (MIT licensed, Colin GUYON)
-  - BLE scanning and advertisement parsing
-- ✅ Created src/sensorpajen/mqtt_publisher.py
-  - MQTTPublisher class with connection management
-  - Direct publishing (replaces sendToMQTT.sh)
-  - Automatic reconnection support
-  - Battery data publishing (optional)
-- ✅ Created src/sensorpajen/sensor_reader.py
-  - SensorReader class for BLE scanning
-  - ATC packet parsing
-  - Duplicate packet filtering
-  - Watchdog for BLE recovery
-  - Measurement dataclass
-- ✅ Created src/sensorpajen/main.py
-  - Application entry point
-  - Signal handling (SIGTERM, SIGINT)
-  - Graceful shutdown
-  - Logging to stdout for journald
+### Tasks:
+- [ ] **Live Dashboard**:
+    - Real-time display of temperature, humidity, and battery levels.
+    - Visual indicators for sensor health/connectivity.
+- [ ] **Global Configuration**:
+    - Edit MQTT settings (Host, Port, Credentials).
+    - Edit application settings (Watchdog, Log Level, etc.).
+- [ ] **System Integration**:
+    - View service logs within the TUI.
+    - Restart/Stop service from the TUI.
 
 ---
 
-### Phase 3: Configuration Migration ✅ DONE (2025-12-27)
-**Goal**: Replace .ini file with JSON and environment variables
-
-**Notes**: Templates created in Phase 1, successfully tested on Raspberry Pi
-
-#### Tasks:
-1. Create sensor mapping converter script
-   - Read sensorer.ini
-   - Output to sensors.json
-   ```json
-   {
-     "sensors": [
-       {
-         "mac": "A4:C1:38:98:7B:B6",
-         "name": "mi_temp_1"
-       },
-       {
-         "mac": "A4:C1:38:29:03:0D",
-         "name": "mi_temp_2"
-       }
-     ]
-   }
-   ```
-configuration file templates
-   - `config/sensorpajen.env.example`
-   ```bash
-   # MQTT Configuration
-   MQTT_HOST=192.168.0.114
-   MQTT_PORT=1883
-   MQTT_USER=hasse
-   MQTT_PASSWORD=casablanca
-   MQTT_CLIENT_ID=mibridge
-   
-   # Sensor Configuration (relative to project root)
-   SENSOR_CONFIG_FILE=config/sensors.json
-   
-   # Application Settings
-   WATCHDOG_TIMEOUT=5
-   ENABLE_BATTERY=true
-   LOG_LEVEL=INFO
-   ```
-
-   - `config/sensors.json.example`
-   ```json
-   {
-     "sensors": [
-       {
-         "mac": "A4:C1:38:98:7B:B6",
-         "name": "mi_temp_1",
-         "comment": "Example sensor"
-       }
-     ]
-   }
-   ```
-
-3. Copy templates to actual config files (not in git):
-   ```bash
-   cp config/sensorpajen.env.example config/sensorpajen.env
-   cp config/sensors.json.example config/sensors.json
-   chmod 600 config/sensorpajen.env
-   # Edit both files with your actual configurationnsorpajen/sensorpajen.env
-   chmod 600 /home/fredrik/.config/sensorpajen/sensorpajen.env
-   ```
-
-4. Document all configuration variables in README
-
----
-config/sensorpajen.env
-   config/sensors.json
-   *.deb
-   debian/.debhelper/
-   debian/sensorpajen/
-   debian/files
-   debian/*.log
-   debian/*.substvars
-### Phase 4: Virtual Environment & Dependencies ✅ DONE (2025-12-27)
-**Goal**: Set up isolated Python environment
-
-**Notes**: Tested on Raspberry Pi, paho-mqtt v2.x compatibility fixed
-
-#### Tasks:
-1. Create virtual environment:
-   ```bash
-   python3 -m venv .venv
-   ```
-
-2. Update .gitignore:
-   ```
-   .venv/
-   __pycache__/
-   *.pyc
-   .env
-   sensorpajen.env
-   ```
-
-3. Install dependencies:
-   ```bash
-   source .venv/bin/activate
-   pip install --upgrade pip
-   pip install bluepy paho-mqtt
-   pip install -e .  # Install package in development mode
-   ```
-
-4. Document virtual environment usage in README
-
----✅ DONE (2025-12-27)
-**Goal**: Allow non-root user to access Bluetooth
-
-**Notes**: Tested on Raspberry Pi with setcap on actual Python binary
-### Phase 5: Bluetooth Permissions ✅ DONE (2025-12-27)
-**Goal**: Allow non-root user to access Bluetooth
-
-**Notes**: Tested on Raspberry Pi with setcap on actual Python binary
-
-#### Tasks:
-- ✅ Bluetooth capabilities set with setcap
-- ✅ Documented in SETUP_ON_PI.md with correct readlink -f usage
-- ✅ Tested successfully on Raspberry Pi
-
----
-
-### Phase 6: Systemd Service Creation ✅ DONE (2025-12-27)
-**Goal**: Create and configure systemd user service
-
-**Notes**:
-- User service for easier management (no sudo required)
-- Service ready for installation on Raspberry Pi
-- Comprehensive documentation provided
-- **Important discoveries**:
-  - `AmbientCapabilities` does NOT work in user services (only system services)
-  - Must use `setcap` on the Python binary instead
-  - `NoNewPrivileges=true` prevents file capabilities from working - must be disabled
-  - Capabilities must be set on actual binary, not symlinks: `setcap ... $(readlink -f python3)`
-
-#### Tasks:
-- ✅ Created systemd/sensorpajen.service
-- ✅ Created systemd/README.md with full documentation
-- ✅ Service management and troubleshooting guides included
-- ✅ Tested and verified working on Raspberry Pi
-
----
-
-### Phase 7: Testing & Validation ✅ DONE (2025-12-27)
-**Goal**: Verify new service works before removing legacy
-
-**Notes**:
-- Service tested and running successfully
-- Legacy cron/tmux system stopped
-- All sensors reporting correctly via systemd service
-
-#### Tasks:
-- ✅ Stopped legacy cron/tmux processes
-- ✅ Started new systemd service
-- ✅ Monitored logs - no errors
-- ✅ Verified all 8 sensors reporting
-- ✅ Confirmed MQTT publishing working
-- ✅ Tested service restart and auto-recovery
-
----
-
-### Phase 8: APT Package Creation ✓ TODO
-**Goal**: Create Debian package for easy installation on Raspberry Pi
-
-#### Tasks:
-1. Create debian/ directory structure:
-   ```bash
-   mkdir -p debian
-   ```
-
-2. Create `debian/control`:
-   ``APT package installation instructions
-   - Development installation instructions
-   - Configuration guide (relative paths)
-   - Service management commands
-   - Troubleshooting section
-   - Remove DHT11 references
-   - Remove pirate_audio references
-
-3. Create INSTALL.md:
-   - APT package installation steps
-   - Manual installation steps
-   - Configuration examples
-   - First-time setup guide
-   - Raspberry Pi specific instructionsds}, ${misc:Depends},
-            python3-bluepy,
-            python3-paho-mqtt,
-            bluetooth,
-            bluez
-   Description: Bluetooth temperature sensor monitor
-    Monitors Xiaomi Mijia LYWSD03MMC Bluetooth temperature sensors
-    and publishes data to MQTT broker.
-   ```
-
-3. Create `debian/rules`:
-   ```makefile
-   #!/usr/bin/make -f
-   
-   %:
-   	dh $@ --with python3 --buildsystem=pybuild
-   
-   override_dh_auto_install:
-   	pytOption 1: APT Package (Recommended for Raspberry Pi)
-   
-   1. Download and install the .deb package:
-   ```bash
-   sudo dpkg -i sensorpajen_1.0.0_all.deb
-   sudo apt-get install -f  # Fix any dependencies
-   ```
-   
-   2. Configure:
-   ```bash
-   mkdir -p ~/sensorpajen/config
-   cp /usr/share/doc/sensorpajen/examples/sensorpajen.env.example ~/sensorpajen/config/sensorpajen.env
-   cp /usr/share/doc/sensorpajen/examples/sensors.json.example ~/sensorpajen/config/sensors.json
-   # Edit both files
-   nano ~/sensorpajen/config/sensorpajen.env
-   nano ~/sensorpajen/config/sensors.json
-   chmod 600 ~/sensorpajen/config/sensorpajen.env
-   ```
-   
-   3. Enable and start service:
-   ```bash
-   systemctl --user enable sensorpajen
-   systemctl --user start sensorpajen
-   ```
-   
-   ### Option 2: Development Installation
-   
-   1. Clone Repository
-   ```bash
-   git clone <repo> ~/sensorpajen
-   cd ~/sensorpajen
-   ```
-   
-   2. Create Virtual Environment
-   ```bash
-   python3 -m venv .venv
-   source .venv/bin/activate
-   pip install -e .
-   ```
-
-### Relative Paths (For Portability)
-- **Project root**: `~/sensorpajen/` (or wherever you clone/install)
-- **Application config**: `~/sensorpajen/config/`
-- **Environment file**: `~/sensorpajen/config/sensorpajen.env` (0600)
-- **Sensor mapping**: `~/sensorpajen/config/sensors.json` (0644)
-- **Service file**: `~/.config/systemd/user/sensorpajen.service`
-
-### Advantages of Relative Paths
-- Works on any system (development, production, multiple Raspberry Pis)
-- Easy to backup/restore entire directory
-- No hardcoded paths in code
-- Simple to deploy via git pull or package installation
-- User service runs without sudo
-
-### APT Package Installation
-When installed via .deb package:
-- **Python package**: `/usr/lib/python3/dist-packages/sensorpajen/`
-- **Service file**: `/lib/systemd/user/sensorpajen.service`
-- **Config templates**: `/usr/share/doc/sensorpajen/examples/`
-- **User config**: `~/sensorpajen/config/` (created by user)sensorpajen
-   ```
-   
-   5. Verify
-   ```bash
-   systemctl --user status sensorpajen
-   journalctl --user -u sensorpajen -f
-   ```uetooth access
-   if [ "$1" = "configure" ]; then
-       PYTHON_PATH=$(readlink -f /usr/bin/python3)
-       setcap 'cap_net_raw,cap_net_admin+eip' "$PYTHON_PATH" || true
-   fi
-   
-   #DEBHELPER#
-   ```
-
-7. Create `debian/README.Debian`:
-   - Installation instructions
-   - Configuration guide
-   - Service management
-
-8. Build the package:
-   ```bash
-   dpkg-buildpackage -us -uc -b
-   ```
-
-9. Test installation on Raspberry Pi:
-   ```bash
-   sudo dpkg -i ../sensorpajen_1.0.0_all.deb
-   sudo apt-get install -f  # Fix dependencies if needed
-   ```
-
-10. Create installation documentation:
-    - Package installation instructions
-    - Configuration setup after installation
-    - Service enablement
-
----
-
-### Phase 9: Cleanup & Documentation ✅ DONE (2025-12-27)
-**Goal**: Remove legacy code and finalize documentation
-
-**Notes**:
-- Legacy cron/tmux scripts removed
-- Documentation focused on practical usage
-- INSTALL.md created for sysadmins
-
-#### Tasks:
-- ✅ Deleted legacy/ folder (old cron/tmux scripts)
-- ✅ Created INSTALL.md with concise installation guide
-- ✅ Updated README.md troubleshooting section
-- ✅ Documentation assumes sysadmin familiarity
-
----
-
-## Migration Complete! 🎉
-
-All phases completed. The system has been successfully migrated from a legacy cron/tmux-based system to a modern systemd service with:
-
-- ✅ Python package structure
-- ✅ Environment-based configuration (no .ini files)
-- ✅ Systemd user service with auto-restart
-- ✅ Automatic sensor discovery with approval workflow
-- ✅ Configuration auto-reload (no restart needed)
-- ✅ ntfy notifications for new sensors
-- ✅ Comprehensive documentation
-
-**Version**: 2.0.0-dev  
-**Status**: Production-ready
-   ```markdown
-   ## Installation
-   
-   ### 1. Clone Repository
-   git clone <repo> /home/fredrik/dev/sensorpajen
-   cd /home/fredrik/dev/sensorpajen
-   
-   ### 2. Create Virtual Environment
-   python3 -m venv .venv
-   source .venv/bin/activate
-   pip install -e .
-   
-   ### 3. Configure
-   mkdir -p ~/.config/sensorpajen
-   cp systemd/sensorpajen.env.example ~/.config/sensorpajen/sensorpajen.env
-   # Edit configuration
-   nano ~/.config/sensorpajen/sensorpajen.env
-   chmod 600 ~/.config/sensorpajen/sensorpajen.env
-   
-   ### 4. Convert Sensor Configuration
-   # Create sensors.json from your sensor list
-   
-   ### 5. Install Service
-   cp systemd/sensorpajen.service ~/.config/systemd/user/
-   systemctl --user daemon-reload
-   systemctl --user enable sensorpajen
-   systemctl --user start sensorpajen
-   
-   ### 6. Verify
-   systemctl --user status sensorpajen
-   journalctl --user -u sensorpajen -f
-   ```
-
-5. Add troubleshooting section:
-   - Bluetooth permission issues
-   - MQTT connection problems
-   - Service won't start
-   - Log locations
-
----
-
-## Configuration File Locations (Linux Best Practices)
-
-### User Service Configuration
-- **Service files**: `~/.config/systemd/user/`
-- **Application config**: `~/.config/sensorpajen/`
-- **Environment file**: `~/.config/sensorpajen/sensorpajen.env` (0600)
-- **Sensor mapping**: `~/.config/sensorpajen/sensors.json` (0644)
-
-### System Service (Alternative - Not Recommended)
-If running as system service (not user service):
-- **Service file**: `/etc/systemd/system/sensorpajen.service`
-- **Config directory**: `/etc/sensorpajen/`
-- **Environment file**: `/etc/sensorpajen/sensorpajen.env` (0600)
-
-**Recommendation**: Use user service (current approach) since:
-- No sudo required for service management
-- Easier permission management
-- Better security isolation
-- Simpler Bluetooth access
-
----
-
-## Success Criteria
-
-The migration is complete when:
-
-- ✅ Service starts automatically on boot
-- ✅ All 8 Bluetooth sensors are being read
-- ✅ MQTT messages are published correctly
-- ✅ Service recovers automatically from crashes
-- ✅ No hardcoded credentials in code
-- ✅ Logs are visible via journalctl
-- ✅ DHT11 functionality completely removed
-- ✅ Legacy scripts removed
-- ✅ Documentation is complete and accurate
-- ✅ Service runs as user (not root)
-- ✅ Virtual environment is working
-
----
-
-## Rollback Plan
-
-If issues arise during migration:
-
-1. Stop new service:
-   ```bash
-   systemctl --user stop sensorpajen
-   systemctl --user disable sensorpajen
-   ```
-
-2. Restore legacy scripts from legacy/ folder:
-   ```bash
-   cp legacy/* .
-   ```
-
-3. Restore cron jobs:
-   ```bash
-   crontab -e
-   # Uncomment:
-   # @reboot /home/fredrik/dev/sensorpajen/sensorer.sh
-   ```
-
-4. Reboot or manually start tmux session
-
----
-
-## Future Enhancements
-
-After successful migration, consider:
-
-- [ ] Add Prometheus metrics endpoint
-- [ ] Add systemd watchdog support
-- [ ] Implement graceful sensor failure handling
-- [ ] Add MQTT TLS support
-- [ ] Create web dashboard for sensor status
-- [ ] Add sensor calibration configuration
-- [ ] Implement sensor auto-discovery
-- [ ] Add health check endpoint
-
----
-
-## Notes
-
-- Keep legacy scripts during migration for safety
-- Test thoroughly before removing cron jobs
-- Monitor for at least 1-2 weeks before final cleanup
-- Document any issues encountered during migration
-- Take notes of actual MAC addresses and sensor names during conversion
-
----
-
-## References
-
-- systemd user services: `man systemd.service`
-- XDG Base Directory: `~/.config/` for user configuration
-- Bluetooth capabilities: `man capabilities`
-- journalctl: `man journalctl`
-- Python logging: https://docs.python.org/3/library/logging.html
+## Completed Phases
+- ✅ **Phase 0: Preparation & Cleanup** (2025-12-27)
+- ✅ **Phase 0.1: Testing Infrastructure** (2025-12-29)
+- ✅ **Phase 1: Modern TUI Management & Data Persistence** (2025-12-29)
+- ✅ **Release: v3 Debian package** (2025-12-29)

TASKS.md

@@ -1,271 +0,0 @@
-# Tasks
-## Task: Add Auto-Discovery and Approval Flow for Sensors
-
-### Problem Statement
-
-Adding new sensors currently requires manually editing `sensors.json`, which is error-prone and inconvenient.
-The system should automatically detect new sensors and provide a controlled way for users to approve or ignore them.
-
----
-
-## Goal
-
-Implement **automatic sensor discovery** with a **user approval workflow** that:
-
-* Detects new sensors automatically
-* Notifies the user when new sensors are discovered
-* Allows the user to approve or ignore sensors via a script
-* Automatically updates `sensors.json` for approved sensors
-* Restarts the service after configuration changes
-
----
-
-## Scope
-
-### In Scope
-
-* Sensor auto-discovery
-* Tracking newly discovered sensors
-* Notification via `ntfy`
-* Interactive user script for approving/ignoring sensors
-* Updating `sensors.json`
-* Restarting the service via systemd
-
-### Out of Scope
-
-* Web UI
-* Authentication mechanisms beyond existing system access
-* Changes to sensor hardware or firmware
-* Long-term sensor management (removal, editing, etc.)
-
----
-
-## Functional Requirements
-
-### 1. Sensor Auto-Discovery
-
-* The service must detect sensors that are not present in `sensors.json`
-* Each newly discovered sensor must have a stable unique identifier
-* Discovered-but-unapproved sensors must **not** be added automatically
-
----
-
-### 2. Discovered Sensor Storage
-
-* Newly discovered sensors must be stored in `config/discovered_sensors.json`
-* Stored data must include:
-  * `mac` - MAC address (unique identifier)
-  * `name` - Advertised device name (e.g., "ATC_1234AB")
-  * `rssi` - Signal strength in dBm
-  * `first_seen` - ISO timestamp of first discovery
-  * `last_seen` - ISO timestamp of most recent advertisement
-  * `sample_reading` - One example reading with temperature, humidity, battery data
-  * `status` - One of: "pending", "approved", "ignored"
-  * `ignored_at` - ISO timestamp when ignored (if status is "ignored")
-  * `ignore_reason` - Optional user-provided reason for ignoring
-* Approved sensors must have their status updated to "approved"
-* Ignored sensors must remain in the file with status "ignored"
-
----
-
-### 3. Notification via ntfy
-
-* When a new sensor is discovered:
-  * Send a notification to the configured `ntfy` topic via curl
-  * Include at least:
-    * Sensor MAC address
-    * Sensor name
-    * Last seen timestamp
-    * Instruction that user action is required
-* Configuration (in `config/sensorpajen.env`):
-  * `NTFY_ENABLED` - true/false to enable/disable notifications
-  * `NTFY_URL` - ntfy server URL (e.g., "https://ntfy.sh")
-  * `NTFY_TOPIC` - Topic to publish to
-  * `NTFY_TOKEN` - Authentication token (sent in header)
-* ntfy is optional - system must work without it:
-  * If `NTFY_ENABLED=false`, skip notifications
-  * If ntfy is unreachable, log error and continue
-  * Discovery and approval must work even if ntfy fails
-* The user must only be notified once per discovered sensor
----
-
-### 4. User Approval Script
-
-Provide a CLI command `sensorpajen approve-sensors` that:
-
-* Lists all sensors with status "pending" or "ignored"
-* For each sensor, displays:
-  * MAC address
-  * Advertised name (e.g., "ATC_1234AB")
-  * Last seen timestamp
-  * Sample reading (temperature, humidity, battery)
-  * Current status (pending/ignored)
-* For each sensor, allows the user to:
-  * Approve the sensor (add to `sensors.json`)
-  * Ignore the sensor (mark as ignored)
-  * Skip (leave as pending for later)
-* If approving:
-  * Prompt for a sensor name (required, human-readable)
-  * Pre-fill comment field with extended metadata (MAC, device name, last seen, sample reading)
-  * Allow user to edit or keep the pre-filled comment (optional)
-* If ignoring:
-  * Prompt for optional reason
-  * Update status to "ignored" with timestamp
-* Interactive mode only (no batch/automated approval)
-
----
-
-### 5. Updating sensors.json
-
-* When a sensor is approved:
-  * Add it to `sensors.json` (only if MAC doesn't already exist)
-  * Include:
-    * `mac` - MAC address from discovery
-    * `name` - User-provided human-readable name
-    * `comment` - User-edited comment (pre-filled with metadata)
-* The file must remain valid JSON
-* Existing sensors must not be modified
-* If MAC already exists in `sensors.json`, skip adding (renaming is done manually in the file)
-* Update status to "approved" in `discovered_sensors.json`
-
----
-
-### 6. Configuration Reload
-
-* The service must automatically reload `sensors.json` every 15 minutes
-* No service restart required after approval
-* If `sensors.json` is modified:
-  * Load new sensor list
-  * Start monitoring newly added sensors
-  * Continue monitoring existing sensors without interruption
-* Log configuration reload events
-
----
-
-## Non-Functional Requirements
-
-* Must be safe to run on a Raspberry Pi
-* Must not require a GUI
-* Must fail gracefully if:
-
-  * `ntfy` is unreachable
-  * The user aborts the approval script
-* Logging must clearly indicate:
-
-  * Discovery events
-  * Notifications sent
-  * Approval or ignore decisions
-
----
-
-## Acceptance Criteria
-
-* A new sensor is automatically detected and added to `discovered_sensors.json` with status "pending"
-* Extended metadata (MAC, name, RSSI, timestamps, sample reading) is stored
-* A notification is sent via `ntfy` when a sensor is discovered (if enabled)
-* The approval CLI command (`sensorpajen approve-sensors`) lists pending and ignored sensors
-* The CLI displays MAC, name, last seen, and sample reading for each sensor
-* The user can approve a sensor with a custom name
-* The comment field is pre-filled with metadata and user can edit it
-* The user can ignore a sensor with an optional reason
-* Previously ignored sensors can be approved in a later CLI run
-* Approved sensors appear correctly in `sensors.json` (mac + name + comment only)
-* Sensors already in `sensors.json` are not added again (no duplicates)
-* The service automatically reloads `sensors.json` every 15 minutes
-* New sensors are monitored without service restart
-* Ignored sensors are stored with `ignored_at` timestamp and optional `ignore_reason`
-* ntfy failures do not prevent discovery or approval workflow
-
----
-
-## Notes for Implementation
-
-* Prefer environment-based configuration (no `.ini` files)
-* Keep the discovery logic separate from user interaction logic
-* Avoid race conditions between discovery and approval
-* Assume multiple sensors may be discovered before user action
-* Use MAC address as unique identifier for sensors
-* ntfy notification format: `curl -H "Authorization: Bearer $NTFY_TOKEN" -d "message" $NTFY_URL/$NTFY_TOPIC`
-* Config reload: Use a timer thread that checks file mtime or reloads every 15 minutes
-* Pre-filled comment example: `"MAC: A4:C1:38:12:34:56, Name: ATC_1234AB, Last seen: 2025-12-27T14:30:00, Temp: 21.5°C, Humidity: 45%, Battery: 87%"`
-
----
-
-## Implementation Details
-
-### File Locations
-* Discovered sensors: `config/discovered_sensors.json`
-* Known sensors: `config/sensors.json` (existing)
-* Configuration: `config/sensorpajen.env` (add ntfy settings)
-
-### New CLI Command
-* Entry point: `sensorpajen approve-sensors`
-* Add to `pyproject.toml` under `[project.scripts]`
-
-### Configuration Variables (add to sensorpajen.env)
-```bash
-# ntfy notifications (optional)
-NTFY_ENABLED=true
-NTFY_URL=https://ntfy.sh
-NTFY_TOPIC=sensorpajen
-NTFY_TOKEN=tk_xxxxxxxxxxxxx
-
-# Config reload interval (seconds)
-CONFIG_RELOAD_INTERVAL=900  # 15 minutes
-```
-
-### discovered_sensors.json Structure
-```json
-[
-  {
-    "mac": "A4:C1:38:12:34:56",
-    "name": "ATC_1234AB",
-    "rssi": -65,
-    "first_seen": "2025-12-27T14:30:15",
-    "last_seen": "2025-12-27T14:35:42",
-    "sample_reading": {
-      "temperature": 21.5,
-      "humidity": 45,
-      "battery_percent": 87,
-      "battery_voltage": 2950
-    },
-    "status": "pending"
-  },
-  {
-    "mac": "A4:C1:38:AB:CD:EF",
-    "name": "ATC_ABCDEF",
-    "rssi": -72,
-    "first_seen": "2025-12-27T15:00:00",
-    "last_seen": "2025-12-27T15:10:00",
-    "sample_reading": {
-      "temperature": 19.8,
-      "humidity": 52,
-      "battery_percent": 65,
-      "battery_voltage": 2800
-    },
-    "status": "ignored",
-    "ignored_at": "2025-12-27T15:15:00",
-    "ignore_reason": "Test sensor, not needed"
-  }
-]
-```
-
-### sensors.json Entry (after approval)
-```json
-{
-  "mac": "A4:C1:38:12:34:56",
-  "name": "Living Room",
-  "comment": "MAC: A4:C1:38:12:34:56, Name: ATC_1234AB, Last seen: 2025-12-27T14:35:42, Temp: 21.5°C, Humidity: 45%, Battery: 87%"
-}
-```
-
----
-
-If you want, I can also:
-
-* Split this into **multiple smaller tasks**
-* Add a **definition of done** section
-* Provide a **suggested file/module structure**
-* Write a **follow-up roadmap entry** for sensor management
-
-Just tell me how you want to evolve it next.

Tasks.md

@@ -0,0 +1,24 @@
+# Tasks
+
+## Release: v3.0.0 ✅ DONE (2025-12-29)
+
+**Goal**: Publish a v3 release and Debian package suitable for upgrades.
+
+### Completed:
+- ✅ Bump versions to 3.0.0 (Python + Debian changelog)
+- ✅ Ensure Debian package includes the TUI sources
+- ✅ Build `sensorpajen_3.0.0_all.deb`
+
+## Task: TUI Enhancements (Phase 2)
+
+**Goal**: Add live data, global config, and dashboard.
+
+### Sub-tasks:
+- [ ] **Live Data Integration**:
+    - [ ] Implement a message bus or shared state to feed live BLE readings into the TUI.
+    - [ ] Create a "Live Dashboard" view with real-time gauges/sparklines.
+- [ ] **Global Configuration**:
+    - [ ] Create a form-based view to edit `sensorpajen.env` values.
+- [ ] **System Dashboard**:
+    - [ ] Add system stats (CPU, Temp, Memory) relevant for Raspberry Pi.
+    - [ ] Add service control buttons (Restart, Stop).

VERSION

@@ -1 +1 @@
-2.0.0-dev
+3.0.0

config/sensorpajen.env.example

@@ -5,15 +5,22 @@ MQTT_USER=hasse
 MQTT_PASSWORD=casablanca
 MQTT_CLIENT_ID=mibridge
 
-# Sensor Configuration (relative to project root)
-SENSOR_CONFIG_FILE=config/sensors.json
-DISCOVERED_SENSORS_FILE=config/discovered_sensors.json
+# Sensor Configuration
+# For system installation (/opt/sensorpajen): Use absolute paths
+# SENSOR_CONFIG_FILE=/etc/sensorpajen/sensors.json
+# DISCOVERED_SENSORS_FILE=/etc/sensorpajen/discovered_sensors.json
+#
+# For development installation: Use relative paths (from project root)
+# SENSOR_CONFIG_FILE=config/sensors.json
+# DISCOVERED_SENSORS_FILE=config/discovered_sensors.json
+#
+# If not set, defaults will be used based on installation type
 
 # Application Settings
 WATCHDOG_TIMEOUT=5
 ENABLE_BATTERY=true
 LOG_LEVEL=INFO
-CONFIG_RELOAD_INTERVAL=900  # 15 minutes in seconds
+CONFIG_RELOAD_INTERVAL=900
 
 # ntfy Notifications (optional)
 NTFY_ENABLED=false

debian/README.md

@@ -0,0 +1,364 @@
+# Debian Package Build Guide
+
+This directory contains the Debian packaging files for **sensorpajen**, a Bluetooth temperature sensor monitor for Raspberry Pi.
+
+## Overview
+
+The Debian package installs sensorpajen as a **system-wide service** with:
+
+- Installation to `/opt/sensorpajen/`
+- Configuration in `/etc/sensorpajen/`
+- Dedicated `sensorpajen` system user
+- Systemd service integration
+- Automatic Python virtual environment setup
+- Bluetooth capability configuration
+
+## Prerequisites
+
+### Required Packages
+
+```bash
+sudo apt install \
+    debhelper \
+    dpkg-dev \
+    python3 \
+    python3-venv \
+    python3-pip
+```
+
+### Optional (for verification)
+
+```bash
+sudo apt install lintian
+```
+
+## Quick Start
+
+### Automated Build and Verification
+
+```bash
+# From project root
+./scripts/verify-deb.sh
+```
+
+This script will:
+1. Check for required tools
+2. Build the package
+3. Show package contents
+4. Run lintian checks
+5. Display installation instructions
+
+### Manual Build
+
+```bash
+# From project root
+dpkg-buildpackage -us -uc -b
+```
+
+The `.deb` file will be created in the parent directory:
+```bash
+ls -lh ../sensorpajen_*.deb
+```
+
+## Build Output
+
+```
+../sensorpajen_3.0.0_all.deb              # Installable package
+../sensorpajen_3.0.0_armhf.build          # Build log
+../sensorpajen_3.0.0_armhf.buildinfo      # Build metadata
+../sensorpajen_3.0.0_armhf.changes        # Changes file
+```
+
+## Package Verification
+
+### Check Package Contents
+
+```bash
+dpkg-deb -c ../sensorpajen_*.deb
+```
+
+### Check Package Metadata
+
+```bash
+dpkg-deb -I ../sensorpajen_*.deb
+```
+
+### Run Lintian
+
+```bash
+lintian ../sensorpajen_*.deb
+```
+
+**Note**: Warnings are acceptable. Focus on fixing errors.
+
+## Installation
+
+### On Raspberry Pi
+
+```bash
+# Copy package to Pi
+scp ../sensorpajen_*.deb pi@raspberrypi:~/
+
+# SSH to Pi and install
+ssh pi@raspberrypi
+sudo apt install ./sensorpajen_*.deb
+```
+
+### Local Testing (Not Recommended)
+
+Installing on your development machine will modify `/opt` and `/etc`:
+
+```bash
+sudo apt install ../sensorpajen_*.deb
+```
+
+**Warning**: This will create system directories and a system user on your dev machine.
+
+## Post-Installation Configuration
+
+After installing the package:
+
+```bash
+# 1. Edit MQTT credentials
+sudo nano /etc/sensorpajen/sensorpajen.env
+
+# 2. Configure sensors
+sudo nano /etc/sensorpajen/sensors.json
+
+# 3. Start the service
+sudo systemctl start sensorpajen
+
+# 4. Check status
+sudo systemctl status sensorpajen
+
+# 5. View logs
+sudo journalctl -u sensorpajen -f
+```
+
+## Running the TUI
+
+The package installs a `sensorpajen-tui` command in `/usr/bin/`.
+
+```bash
+sudo sensorpajen-tui
+```
+
+Internally this runs the application from `/opt/sensorpajen/venv/`.
+
+## Package Structure
+
+### Installed Files
+
+| Source | Destination |
+|--------|-------------|
+| `src/sensorpajen/*.py` | `/opt/sensorpajen/src/sensorpajen/` |
+| `src/sensorpajen/tui/*.py` | `/opt/sensorpajen/src/sensorpajen/tui/` |
+| `scripts/approve-sensors.sh` | `/opt/sensorpajen/scripts/` |
+| `pyproject.toml` | `/opt/sensorpajen/` |
+| `README.md`, `INSTALL.md`, `ROADMAP.md` | `/usr/share/doc/sensorpajen/` |
+| `config/*.example` | `/usr/share/doc/sensorpajen/examples/` |
+| `debian/sensorpajen.service` | `/etc/systemd/system/` |
+| *(created in postinst)* | `/opt/sensorpajen/venv/` |
+| *(created in postinst)* | `/etc/sensorpajen/` |
+
+### Configuration Files
+
+- **Active Config**: `/etc/sensorpajen/sensorpajen.env` (credentials)
+- **Active Config**: `/etc/sensorpajen/sensors.json` (sensor list)
+- **Discovery Data**: `/etc/sensorpajen/discovered_sensors.json`
+- **Examples**: `/usr/share/doc/sensorpajen/examples/*.example`
+
+## Maintainer Scripts
+
+### postinst (Post-Installation)
+
+Runs after package installation:
+
+1. Creates `sensorpajen` system user (if doesn't exist)
+2. Creates `/etc/sensorpajen/` directory
+3. Copies example configs to `/etc/sensorpajen/` (if missing)
+4. Creates Python virtual environment in `/opt/sensorpajen/venv/`
+5. Installs Python dependencies via pip
+6. Sets Bluetooth capabilities on Python executable
+7. Installs systemd service file
+8. Enables service (but doesn't start until configured)
+
+### prerm (Pre-Removal)
+
+Runs before package removal:
+
+1. Stops the sensorpajen service
+2. Disables the service (on remove, not upgrade)
+
+### postrm (Post-Removal)
+
+Runs after package removal:
+
+1. Removes systemd service file
+2. Reloads systemd daemon
+3. **Preserves** configuration in `/etc/sensorpajen/`
+4. **Preserves** `sensorpajen` user
+
+**Note**: Configuration and user are intentionally preserved to prevent data loss.
+
+## Upgrade Behavior
+
+When upgrading to a new version:
+
+```bash
+sudo apt install ./sensorpajen_2.1.0_all.deb
+```
+
+- ✅ Service is stopped during upgrade
+- ✅ Old files are replaced
+- ✅ Configuration in `/etc/sensorpajen/` is **preserved**
+- ✅ Python dependencies are updated
+- ✅ Service is restarted after upgrade
+- ✅ Example files in `/usr/share/doc/` are updated
+
+## Removal Behavior
+
+### Remove (Keep Config)
+
+```bash
+sudo apt remove sensorpajen
+```
+
+- Service stopped and disabled
+- Application files removed from `/opt/sensorpajen/`
+- Configuration **preserved** in `/etc/sensorpajen/`
+- User **preserved**
+
+### Purge (Still Keeps Config)
+
+```bash
+sudo apt purge sensorpajen
+```
+
+- Same as remove
+- Configuration still **preserved** (by design, for safety)
+- User still **preserved**
+
+### Complete Removal
+
+To completely remove everything:
+
+```bash
+sudo apt purge sensorpajen
+sudo rm -rf /etc/sensorpajen
+sudo userdel sensorpajen
+```
+
+## Troubleshooting
+
+### Build Fails: "debhelper: command not found"
+
+```bash
+sudo apt install debhelper
+```
+
+### Build Fails: "dh_python3: command not found"
+
+```bash
+sudo apt install dh-python
+```
+
+### Lintian Warnings About Permissions
+
+The postinst script runs as root and sets file permissions. This is expected and safe.
+
+### Package Won't Install: Dependency Issues
+
+```bash
+# Fix missing dependencies
+sudo apt install -f
+```
+
+### Service Won't Start After Install
+
+Check if configuration has been edited:
+
+```bash
+sudo journalctl -u sensorpajen -n 50
+```
+
+Common issues:
+- MQTT_HOST still has example value
+- sensors.json is empty
+- Bluetooth adapter not available
+
+### Bluetooth Capability Not Set
+
+```bash
+# Manually set capability
+sudo setcap cap_net_raw,cap_net_admin+eip $(readlink -f /opt/sensorpajen/venv/bin/python3)
+
+# Verify
+getcap $(readlink -f /opt/sensorpajen/venv/bin/python3)
+```
+
+## Development Workflow
+
+### Making Changes
+
+1. Edit source code in `src/sensorpajen/`
+2. Update version in `pyproject.toml`
+3. Update `debian/changelog` with new entry
+4. Rebuild package: `./scripts/verify-deb.sh`
+5. Test on Raspberry Pi
+
+### Version Numbering
+
+- Development: `2.0.0-dev`
+- Release: `2.0.0`
+- Patch: `2.0.1`
+
+Update in both:
+- `pyproject.toml` (line 6: `version = "..."`)
+- `debian/changelog` (first line)
+
+### Testing on Pi
+
+```bash
+# Build
+./scripts/verify-deb.sh
+
+# Copy to Pi
+scp ../sensorpajen_*.deb pi@raspberrypi:~/
+
+# Install on Pi
+ssh pi@raspberrypi
+sudo systemctl stop sensorpajen  # If upgrading
+sudo apt install ./sensorpajen_*.deb
+sudo systemctl status sensorpajen
+```
+
+## Package Metadata
+
+**Package Name**: sensorpajen  
+**Section**: misc  
+**Priority**: optional  
+**Architecture**: all (pure Python)  
+**Maintainer**: Fredrik <fredrik@wahlberg.se>  
+**Depends**: python3 (>= 3.9), python3-venv, python3-pip, bluetooth, bluez, libcap2-bin  
+**Recommends**: mosquitto-clients
+
+## Additional Resources
+
+- **TASKS.md**: Detailed implementation notes
+- **ROADMAP.md**: Phase 8 section for APT package creation
+- **INSTALL.md**: User installation guide
+- **systemd/README.md**: Service management guide
+
+## Support
+
+For issues or questions:
+1. Check `sudo journalctl -u sensorpajen -n 100`
+2. Verify configuration files in `/etc/sensorpajen/`
+3. Check Bluetooth adapter: `hciconfig`
+4. Test MQTT connection: `mosquitto_pub -h <host> -t test -m "test"`
+
+---
+
+**Last Updated**: December 27, 2025  
+**Package Version**: 2.0.0-dev

debian/changelog

@@ -0,0 +1,28 @@
+sensorpajen (3.0.0) stable; urgency=medium
+
+  * Production release v3.0.0
+  * Textual TUI for sensor approval/management
+  * Per-sensor comments persisted in sensors.json
+  * Improved safety UX (delete confirmation, details view)
+
+ -- Fredrik <fredrik@wahlberg.se>  Mon, 29 Dec 2025 12:00:00 +0100
+
+sensorpajen (2.0.0) stable; urgency=medium
+
+  * Production release v2.0.0
+  * Modernized service architecture with systemd
+  * Automatic sensor discovery and approval workflow
+  * Fixed state directory for discovered_sensors.json
+  * Improved documentation with installation guide
+  * Bytecode cleanup in postinst for clean installs
+
+ -- Fredrik <fredrik@wahlberg.se>  Sun, 28 Dec 2025 10:56:00 +0100
+
+sensorpajen (2.0.0-dev) unstable; urgency=medium
+
+  * Initial Debian package release
+  * Modernized service architecture with systemd
+  * Automatic sensor discovery and approval workflow
+
+ -- Fredrik <fredrik@wahlberg.se>  Sun, 28 Dec 2025 09:00:00 +0100
+

debian/control

@@ -0,0 +1,22 @@
+Source: sensorpajen
+Section: misc
+Priority: optional
+Maintainer: Fredrik <fredrik@wahlberg.se>
+Build-Depends: debhelper-compat (= 13)
+Standards-Version: 4.5.0
+Homepage: https://github.com/yourusername/sensorpajen
+
+Package: sensorpajen
+Architecture: all
+Depends: python3 (>= 3.9), python3-venv, python3-pip, bluetooth, bluez, libcap2-bin, ${misc:Depends}
+Recommends: mosquitto-clients
+Description: Raspberry Pi Bluetooth temperature sensor monitor
+ Monitors Xiaomi Mijia LYWSD03MMC temperature sensors via Bluetooth Low Energy
+ and publishes readings to MQTT broker. Supports ATC firmware with automatic
+ sensor discovery and approval workflow.
+ .
+ Features:
+  - Automatic sensor discovery
+  - MQTT publishing
+  - Systemd service integration
+  - User approval workflow for new sensors

debian/install

@@ -0,0 +1,10 @@
+src/sensorpajen/*.py opt/sensorpajen/src/sensorpajen/
+src/sensorpajen/tui/*.py opt/sensorpajen/src/sensorpajen/tui/
+scripts/approve-sensors.sh opt/sensorpajen/scripts/
+debian/sensorpajen-tui usr/bin/
+pyproject.toml opt/sensorpajen/
+requirements.txt opt/sensorpajen/
+readme.md usr/share/doc/sensorpajen/
+INSTALL.md usr/share/doc/sensorpajen/
+ROADMAP.md usr/share/doc/sensorpajen/
+config/*.example usr/share/doc/sensorpajen/examples/

debian/postinst

@@ -0,0 +1,161 @@
+#!/bin/bash
+set -e
+
+case "$1" in
+    configure)
+        # Create sensorpajen system user if it doesn't exist
+        if ! getent passwd sensorpajen > /dev/null; then
+            useradd --system --no-create-home --shell /usr/sbin/nologin sensorpajen
+            echo "Created system user: sensorpajen"
+        fi
+
+        # Create config directory with proper permissions
+        mkdir -p /etc/sensorpajen
+        chown sensorpajen:sensorpajen /etc/sensorpajen
+        chmod 750 /etc/sensorpajen
+
+        # Create state directory with proper permissions (writable at runtime)
+        mkdir -p /var/lib/sensorpajen
+        chown sensorpajen:sensorpajen /var/lib/sensorpajen
+        chmod 750 /var/lib/sensorpajen
+
+        # Copy example configs to /etc/sensorpajen if they don't exist
+        for sample in sensorpajen.env.example sensors.json.example; do
+            source_file="/usr/share/doc/sensorpajen/examples/$sample"
+            target_file="/etc/sensorpajen/${sample%.example}"
+            
+            if [ -f "$source_file" ] && [ ! -f "$target_file" ]; then
+                cp "$source_file" "$target_file"
+                chown sensorpajen:sensorpajen "$target_file"
+                
+                # Set restrictive permissions on env file (contains credentials)
+                if [ "$sample" = "sensorpajen.env.example" ]; then
+                    chmod 600 "$target_file"
+                    echo "Created $target_file (edit this file with your MQTT credentials)"
+                else
+                    chmod 640 "$target_file"
+                    echo "Created $target_file"
+                fi
+            fi
+        done
+
+        # Create virtual environment in /opt/sensorpajen
+        cd /opt/sensorpajen
+        if [ ! -d "venv" ]; then
+            echo "Creating Python virtual environment..."
+            python3 -m venv venv
+            venv/bin/pip install --upgrade pip setuptools wheel
+        fi
+
+        # Install Python dependencies from requirements.txt
+        echo "Installing Python dependencies..."
+        if [ -f "/opt/sensorpajen/requirements.txt" ]; then
+            venv/bin/pip install -r /opt/sensorpajen/requirements.txt
+        else
+            echo "Warning: requirements.txt not found, installing bluepy and paho-mqtt directly"
+            venv/bin/pip install bluepy paho-mqtt pybluez
+        fi
+        
+        if [ $? -ne 0 ]; then
+            echo "Error: Failed to install dependencies"
+            exit 1
+        fi
+
+        # Install sensorpajen package itself
+        echo "Installing sensorpajen application..."
+        cd /opt/sensorpajen
+        # Clean up any stale bytecode before building wheel
+        find . -name "*.pyc" -delete
+        find . -name "__pycache__" -type d -delete
+        venv/bin/pip install --no-deps . || {
+            echo "Error: Failed to install sensorpajen package"
+            exit 1
+        }
+        cd /
+
+        # Set ownership of application directory BEFORE setting capabilities
+        chown -R sensorpajen:sensorpajen /opt/sensorpajen
+
+        # Set Bluetooth capabilities on Python executable (after ownership change)
+        PYTHON_PATH=$(readlink -f /opt/sensorpajen/venv/bin/python3)
+        if command -v setcap >/dev/null 2>&1; then
+            setcap cap_net_raw,cap_net_admin+eip "$PYTHON_PATH" || {
+                echo "Warning: setcap failed. You may need to run Bluetooth operations as root."
+                echo "Try: sudo setcap cap_net_raw,cap_net_admin+eip $PYTHON_PATH"
+            }
+        else
+            echo "Warning: setcap not found (install libcap2-bin package)"
+        fi
+
+        # v2 installed a unit into /etc/systemd/system/, which overrides packaged units
+        # and prevents upgrades from taking effect. If that file exists and is identical
+        # to the packaged unit, remove the override.
+        if [ -f /etc/systemd/system/sensorpajen.service ]; then
+            PACKAGED_UNIT=""
+            if [ -f /lib/systemd/system/sensorpajen.service ]; then
+                PACKAGED_UNIT="/lib/systemd/system/sensorpajen.service"
+            elif [ -f /usr/lib/systemd/system/sensorpajen.service ]; then
+                PACKAGED_UNIT="/usr/lib/systemd/system/sensorpajen.service"
+            fi
+
+            if [ -n "$PACKAGED_UNIT" ] && diff -q /etc/systemd/system/sensorpajen.service "$PACKAGED_UNIT" >/dev/null 2>&1; then
+                rm -f /etc/systemd/system/sensorpajen.service
+                echo "Removed redundant /etc override unit (upgrade-safe)"
+            fi
+        fi
+
+        # Reload systemd
+        systemctl daemon-reload
+
+        # Enable service (but don't start - needs configuration first)
+        systemctl enable sensorpajen.service || {
+            echo "Warning: Could not enable sensorpajen service"
+        }
+
+        # Check if configuration is ready
+        if [ -f /etc/sensorpajen/sensorpajen.env ] && [ -f /etc/sensorpajen/sensors.json ]; then
+            # Check if env file has been configured (not default values)
+            if grep -q "MQTT_HOST=192.168.0.114" /etc/sensorpajen/sensorpajen.env; then
+                echo ""
+                echo "======================================================================"
+                echo "  Configuration needed!"
+                echo "======================================================================"
+                echo "  Edit /etc/sensorpajen/sensorpajen.env with your MQTT settings"
+                echo "  Edit /etc/sensorpajen/sensors.json with your sensor list"
+                echo "  Then run: sudo systemctl start sensorpajen"
+                echo "======================================================================"
+                echo ""
+            else
+                # Configuration appears to be customized, restart service
+                systemctl restart sensorpajen.service && {
+                    echo "Sensorpajen service started"
+                    echo "View logs: sudo journalctl -u sensorpajen -f"
+                } || {
+                    echo "Failed to start service. Check: sudo systemctl status sensorpajen"
+                }
+            fi
+        else
+            echo ""
+            echo "======================================================================"
+            echo "  Sensorpajen installed successfully!"
+            echo "======================================================================"
+            echo "  Next steps:"
+            echo "    1. Edit /etc/sensorpajen/sensorpajen.env"
+            echo "    2. Edit /etc/sensorpajen/sensors.json"
+            echo "    3. sudo systemctl start sensorpajen"
+            echo "    4. sudo journalctl -u sensorpajen -f"
+            echo "======================================================================"
+            echo ""
+        fi
+        ;;
+
+    abort-upgrade|abort-remove|abort-deconfigure)
+        ;;
+
+    *)
+        echo "postinst called with unknown argument \`$1'" >&2
+        exit 1
+        ;;
+esac
+
+exit 0

debian/postrm

@@ -0,0 +1,41 @@
+#!/bin/bash
+set -e
+
+case "$1" in
+    remove)
+        # Service removed but config and user preserved
+        echo "Sensorpajen removed. Configuration preserved in /etc/sensorpajen/"
+        echo "To remove config: sudo rm -rf /etc/sensorpajen/"
+        
+        # Remove systemd service file
+        rm -f /etc/systemd/system/sensorpajen.service
+        systemctl daemon-reload || true
+        ;;
+
+    purge)
+        # Even on purge, we keep config by default (user can manually delete)
+        # This is safer as it prevents accidental data loss
+        echo "Configuration preserved in /etc/sensorpajen/"
+        echo "To remove config: sudo rm -rf /etc/sensorpajen/"
+        echo "To remove user: sudo userdel sensorpajen"
+        
+        # Remove systemd service file
+        rm -f /etc/systemd/system/sensorpajen.service
+        systemctl daemon-reload || true
+        
+        # Note: We intentionally do NOT remove:
+        # - /etc/sensorpajen (contains user data)
+        # - sensorpajen user (may own other files/processes)
+        # User must remove these manually if desired
+        ;;
+
+    upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
+        ;;
+
+    *)
+        echo "postrm called with unknown argument \`$1'" >&2
+        exit 1
+        ;;
+esac
+
+exit 0

debian/prerm

@@ -0,0 +1,27 @@
+#!/bin/bash
+set -e
+
+case "$1" in
+    remove|upgrade|deconfigure)
+        # Stop service before removal or upgrade
+        if systemctl is-active --quiet sensorpajen.service 2>/dev/null; then
+            echo "Stopping sensorpajen service..."
+            systemctl stop sensorpajen.service || true
+        fi
+
+        # Disable service on removal (not upgrade)
+        if [ "$1" = "remove" ]; then
+            systemctl disable sensorpajen.service || true
+        fi
+        ;;
+
+    failed-upgrade)
+        ;;
+
+    *)
+        echo "prerm called with unknown argument \`$1'" >&2
+        exit 1
+        ;;
+esac
+
+exit 0

debian/rules

@@ -0,0 +1,20 @@
+#!/usr/bin/make -f
+
+%:
+	dh $@
+
+override_dh_auto_build:
+	# No build step needed for pure Python
+
+override_dh_auto_install:
+	# Installation handled by debian/install file
+	dh_auto_install
+
+override_dh_auto_clean:
+	# Clean build artifacts
+	rm -rf build/ dist/ *.egg-info
+	rm -rf src/*.egg-info
+
+override_dh_builddeb:
+	# Use gzip compression for better compatibility
+	dh_builddeb -- -Zgzip

debian/sensorpajen-tui

@@ -0,0 +1,12 @@
+#!/bin/sh
+set -eu
+
+# Wrapper to run the installed TUI using the app's virtualenv.
+# The venv is created/updated by the package postinst.
+
+if [ -x /opt/sensorpajen/venv/bin/sensorpajen-tui ]; then
+  exec /opt/sensorpajen/venv/bin/sensorpajen-tui "$@"
+fi
+
+# Fallback (should normally not be needed)
+exec /opt/sensorpajen/venv/bin/python -m sensorpajen.tui.app "$@"

debian/sensorpajen.debhelper.log

@@ -0,0 +1 @@
+dh_builddeb

debian/sensorpajen.service

@@ -0,0 +1,32 @@
+[Unit]
+Description=Sensorpajen - Bluetooth Temperature Sensor Monitor
+Documentation=https://github.com/yourusername/sensorpajen
+After=network.target bluetooth.target
+Wants=bluetooth.target
+
+[Service]
+Type=simple
+User=sensorpajen
+Group=sensorpajen
+WorkingDirectory=/opt/sensorpajen
+EnvironmentFile=/etc/sensorpajen/sensorpajen.env
+ExecStart=/opt/sensorpajen/venv/bin/python -m sensorpajen.main
+Restart=always
+RestartSec=10
+
+# Bluetooth capabilities require this to be false
+NoNewPrivileges=false
+
+# Logging
+StandardOutput=journal
+StandardError=journal
+SyslogIdentifier=sensorpajen
+
+# Security hardening (where possible with Bluetooth requirements)
+PrivateTmp=true
+ProtectSystem=strict
+ProtectHome=true
+ReadWritePaths=/etc/sensorpajen /var/lib/sensorpajen
+
+[Install]
+WantedBy=multi-user.target

pyproject.toml

@@ -4,9 +4,9 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "sensorpajen"
-version = "2.0.0-dev"
+version = "3.0.0"
 description = "Bluetooth temperature sensor monitor for Xiaomi Mijia LYWSD03MMC"
-readme = "README.md"
+readme = "readme.md"
 requires-python = ">=3.9"
 license = {text = "MIT"}
 authors = [
@@ -14,7 +14,7 @@ authors = [
 ]
 keywords = ["bluetooth", "temperature", "sensor", "mqtt", "raspberry-pi"]
 classifiers = [
-    "Development Status :: 4 - Beta",
+    "Development Status :: 5 - Production/Stable",
     "Intended Audience :: Developers",
     "License :: OSI Approved :: MIT License",
     "Programming Language :: Python :: 3",
@@ -26,8 +26,10 @@ classifiers = [
 ]
 
 dependencies = [
+    "pybluez",
     "bluepy>=1.3.0",
     "paho-mqtt>=1.6.0",
+    "textual>=0.40.0",
 ]
 
 [project.optional-dependencies]
@@ -45,6 +47,7 @@ Repository = "https://github.com/yourusername/sensorpajen"
 [project.scripts]
 sensorpajen = "sensorpajen.main:main"
 sensorpajen-approve-sensors = "sensorpajen.approve_sensors:main"
+sensorpajen-tui = "sensorpajen.tui.app:main"
 
 [tool.setuptools.packages.find]
 where = ["src"]

readme.md

@@ -22,56 +22,91 @@ Raspberry Pi service that monitors Xiaomi Mijia LYWSD03MMC Bluetooth temperature
 
 ## Installation
 
-See [INSTALL.md](INSTALL.md) for complete installation instructions.
+### System Installation (Debian Package - Recommended for Raspberry Pi)
 
-### Quick Start
+The easiest way to install on Raspberry Pi OS is using the pre-built Debian package:
 
 ```bash
-# Clone repository
-git clone <repo-url> ~/sensorpajen
-cd ~/sensorpajen
+# Download the latest release
+wget https://gitea.wahlberg.se/api/v1/repos/fredrik/sensorpajen/releases/download/v3.0.0/sensorpajen_3.0.0_all.deb
 
-# Create and activate virtual environment
-python3 -m venv .venv
-source .venv/bin/activate
-
-# Install dependencies
-pip install -e .
+# Install
+sudo dpkg -i sensorpajen_3.0.0_all.deb
 
 # Configure
-cp config/sensorpajen.env.example config/sensorpajen.env
-cp config/sensors.json.example config/sensors.json
-nano config/sensorpajen.env  # Edit MQTT settings
-nano config/sensors.json     # Edit sensor MAC addresses
+sudo nano /etc/sensorpajen/sensorpajen.env  # Edit MQTT settings
+sudo systemctl restart sensorpajen
 
-# Set Bluetooth capabilities
-sudo setcap 'cap_net_raw,cap_net_admin+eip' $(readlink -f .venv/bin/python3)
-
-# Install systemd service
-mkdir -p ~/.config/systemd/user/
-cp systemd/sensorpajen.service ~/.config/systemd/user/
-systemctl --user daemon-reload
-sudo loginctl enable-linger $USER
-
-# Start service
-systemctl --user enable sensorpajen
-systemctl --user start sensorpajen
-
-# Check status
-systemctl --user status sensorpajen
-journalctl --user -u sensorpajen -f
+# View logs
+sudo journalctl -u sensorpajen -f
 ```
 
+The system package installs:
+- Application in `/opt/sensorpajen/`
+- Configuration in `/etc/sensorpajen/`
+- Runtime state in `/var/lib/sensorpajen/`
+- Systemd service (runs automatically)
+
+### Development Installation
+
+See [INSTALL.md](INSTALL.md) for complete development setup.
+
 ## Configuration
 
+### Quick Setup
+
+After installation, configure your MQTT broker and sensors:
+
+```bash
+# Edit MQTT settings
+sudo nano /etc/sensorpajen/sensorpajen.env
+
+# Restart service to apply changes
+sudo systemctl restart sensorpajen
+```
+
+### Sensor Management (TUI)
+
+The service automatically discovers nearby Bluetooth sensors. You can manage them using the built-in Text UI:
+
+```bash
+# Launch the management TUI
+sudo sensorpajen-tui
+```
+
+The TUI allows you to:
+- **Discovery**: View newly discovered sensors and **Approve** (add to monitoring) or **Ignore** them.
+- **Configured**: View currently monitored sensors, **Edit** their names, or **Remove** them.
+- **Ignored**: View ignored sensors and **Unignore** them if you change your mind.
+
+**Keybindings:**
+- `a`: Approve selected sensor
+- `i`: Ignore selected sensor
+- `e`: Edit sensor name and comment
+- `v`: View details (MAC/name/comment)
+- `u`: Unignore sensor
+- `Delete`: Remove sensor from monitoring
+- `r`: Refresh data
+- `q`: Quit
+
+When you approve a sensor, it's added to your configuration and the service automatically starts monitoring it.
+
+### Legacy CLI Approval (Deprecated)
+
+The recommended workflow is the TUI (`sensorpajen-tui`). A legacy CLI tool still exists:
+
+```bash
+sudo sensorpajen-approve-sensors
+```
+
 ### MQTT Settings
 
-Edit `config/sensorpajen.env`:
+Edit `/etc/sensorpajen/sensorpajen.env`:
 
 ```bash
 MQTT_HOST=192.168.1.10
 MQTT_PORT=1883
-MQTT_USERNAME=username
+MQTT_USER=username
 MQTT_PASSWORD=password
 MQTT_CLIENT_ID=sensorpajen
 MQTT_TOPIC_PREFIX=MiTemperature2
@@ -79,10 +114,11 @@ MQTT_TOPIC_PREFIX=MiTemperature2
 
 ### Sensors
 
-Edit `config/sensors.json`:
+Sensors are automatically managed via the approval workflow. You can also manually edit `/etc/sensorpajen/sensors.json`:
 
 ```json
-[
+{
+  "sensors": [
     {
       "mac": "A4:C1:38:12:34:56",
       "name": "Living Room"
@@ -91,30 +127,40 @@ Edit `config/sensors.json`:
       "mac": "A4:C1:38:AB:CD:EF",
       "name": "Bedroom"
     }
-]
+  ]
+}
 ```
 
 ## Service Management
 
-See [systemd/README.md](systemd/README.md) for detailed service management instructions.
+### System Installation (Debian Package)
 
 ```bash
 # Start/stop service
-systemctl --user start sensorpajen
-systemctl --user stop sensorpajen
+sudo systemctl start sensorpajen
+sudo systemctl stop sensorpajen
 
 # Enable/disable autostart
-systemctl --user enable sensorpajen
-systemctl --user disable sensorpajen
+sudo systemctl enable sensorpajen
+sudo systemctl disable sensorpajen
 
 # View status
-systemctl --user status sensorpajen
+sudo systemctl status sensorpajen
 
-# View logs
-journalctl --user -u sensorpajen -f
-journalctl --user -u sensorpajen -n 100
+# View logs (live)
+sudo journalctl -u sensorpajen -f
+
+# View last 50 log lines
+sudo journalctl -u sensorpajen -n 50
+
+# Uninstall
+sudo dpkg -r sensorpajen
+# Note: Configuration is preserved in /etc/sensorpajen/
+# To remove config: sudo rm -rf /etc/sensorpajen/
 ```
 
+### Development Installation
+
 ## Flashing New Thermometers
 
 **Important**: Flash only one thermometer at a time!
@@ -158,27 +204,40 @@ sensorpajen/
 
 ## Troubleshooting
 
-See [INSTALL.md](INSTALL.md#troubleshooting) for detailed troubleshooting steps.
+### System Installation (Debian Package)
 
-### Quick Checks
-
-**Permission errors:**
+**Service won't start:**
 ```bash
-sudo setcap 'cap_net_raw,cap_net_admin+eip' $(readlink -f ~/sensorpajen/.venv/bin/python3)
-systemctl --user restart sensorpajen
+# Check what's wrong
+sudo journalctl -u sensorpajen -n 50
+
+# Check configuration is valid
+sudo cat /etc/sensorpajen/sensorpajen.env
+
+# Manually test the application
+sudo /opt/sensorpajen/venv/bin/python -m sensorpajen.main
 ```
 
-**Service status:**
+**MQTT connection issues:**
 ```bash
-systemctl --user status sensorpajen
-journalctl --user -u sensorpajen -f
-```
+# Verify MQTT settings in the log
+sudo journalctl -u sensorpajen | grep MQTT
 
-**MQTT test:**
-```bash
+# Test MQTT connection manually
 mosquitto_sub -h <MQTT_HOST> -u <USER> -P <PASSWORD> -t "MiTemperature2/#" -v
 ```
 
+**Sensor not found:**
+```bash
+# Run the TUI to view/approve newly discovered sensors
+sudo sensorpajen-tui
+
+# Check recent logs
+sudo journalctl -u sensorpajen -n 100
+```
+
+### Development Installation
+
 ## Development
 
 ```bash

requirements.txt

@@ -1,2 +1,3 @@
+pybluez
 bluepy
 paho-mqtt

scripts/approve-sensors.sh

@@ -1,23 +1,48 @@
 #!/bin/bash
-# Wrapper script for approve-sensors that sets minimal required env vars
+# Wrapper script for approve-sensors that works in both dev and system mode
 
-# Get script directory
-SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
-PROJECT_ROOT="$( cd "$SCRIPT_DIR/.." && pwd )"
+# Detect installation type
+if [ -d "/opt/sensorpajen" ]; then
+    # System installation
+    PROJECT_ROOT="/opt/sensorpajen"
+    VENV_PATH="/opt/sensorpajen/venv"
     
-# Set minimal required environment variables
-export MQTT_HOST="${MQTT_HOST:-localhost}"
-export MQTT_PORT="${MQTT_PORT:-1883}"
+    # Load config from system location
+    if [ -f "/etc/sensorpajen/sensorpajen.env" ]; then
+        set -a
+        source /etc/sensorpajen/sensorpajen.env
+        set +a
+    else
+        echo "Warning: /etc/sensorpajen/sensorpajen.env not found"
+        # Set minimal defaults
+        export MQTT_HOST="${MQTT_HOST:-localhost}"
+        export MQTT_PORT="${MQTT_PORT:-1883}"
+    fi
+else
+    # Development installation
+    SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+    PROJECT_ROOT="$( cd "$SCRIPT_DIR/.." && pwd )"
+    VENV_PATH="$PROJECT_ROOT/.venv"
     
-# Load actual config if it exists (will override defaults)
-if [ -f "$PROJECT_ROOT/config/sensorpajen.env" ]; then
+    # Set minimal required environment variables
+    export MQTT_HOST="${MQTT_HOST:-localhost}"
+    export MQTT_PORT="${MQTT_PORT:-1883}"
+
+    # Load actual config if it exists (will override defaults)
+    if [ -f "$PROJECT_ROOT/config/sensorpajen.env" ]; then
         set -a
         source "$PROJECT_ROOT/config/sensorpajen.env"
         set +a
+    fi
 fi
 
 # Activate virtual environment
-source "$PROJECT_ROOT/.venv/bin/activate"
+if [ -f "$VENV_PATH/bin/activate" ]; then
+    source "$VENV_PATH/bin/activate"
+else
+    echo "Error: Virtual environment not found at $VENV_PATH"
+    exit 1
+fi
 
 # Run the approve-sensors command
 python -m sensorpajen.approve_sensors "$@"

scripts/dev-remote.sh

@@ -0,0 +1,206 @@
+#!/bin/bash
+set -e
+
+# Configuration
+REMOTE_HOST="10.0.0.1"
+REMOTE_USER="pi"
+REMOTE_DIR="~/sensorpajen-dev"
+REMOTE_VENV="$REMOTE_DIR/.venv"
+
+# Colors
+GREEN='\033[0;32m'
+BLUE='\033[0;34m'
+YELLOW='\033[1;33m'
+RED='\033[0;31m'
+NC='\033[0m' # No Color
+
+log() {
+    echo -e "${BLUE}[DEV-REMOTE]${NC} $1"
+}
+
+warn() {
+    echo -e "${YELLOW}[WARNING]${NC} $1"
+}
+
+error() {
+    echo -e "${RED}[ERROR]${NC} $1"
+}
+
+cleanup() {
+    log "Cleaning up..."
+    # Kill the background python process if we stored its PID
+    if [ ! -z "$BG_PID" ]; then
+        log "Stopping remote dev backend (PID: $BG_PID)..."
+        ssh -t $REMOTE_USER@$REMOTE_HOST "sudo kill $BG_PID 2>/dev/null || true"
+    fi
+    
+    log "Restarting production service..."
+    ssh -t $REMOTE_USER@$REMOTE_HOST "sudo systemctl start sensorpajen"
+    log "Done."
+}
+
+# Trap cleanup on exit
+trap cleanup EXIT
+
+# Resolve script directory and project root
+SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )"
+PROJECT_ROOT="$(dirname "$SCRIPT_DIR")"
+
+# 1. Sync Code
+log "Syncing code from $PROJECT_ROOT to $REMOTE_USER@$REMOTE_HOST:$REMOTE_DIR..."
+rsync -avz --exclude '.venv' --exclude '__pycache__' --exclude '*.egg-info' \
+    --exclude '*.db' --exclude '*.db-*' --exclude '*.sqlite' --exclude '*.sqlite-*' \
+    "$PROJECT_ROOT/src" "$PROJECT_ROOT/scripts" "$PROJECT_ROOT/pyproject.toml" "$PROJECT_ROOT/config" \
+    "$REMOTE_USER@$REMOTE_HOST:$REMOTE_DIR/"
+
+# 2. Setup Remote Environment (Initial setup)
+log "Ensuring remote environment is ready..."
+ssh -t $REMOTE_USER@$REMOTE_HOST "
+    mkdir -p $REMOTE_DIR
+    cd $REMOTE_DIR
+    
+    # Install system dependencies (always check)
+    echo 'Checking system dependencies...'
+    # Only run apt-get update if we need to install something to save time?
+    # Or just run it. Let's run install, it's safer.
+    if ! dpkg -s libbluetooth-dev >/dev/null 2>&1; then
+        echo 'Installing libbluetooth-dev...'
+        sudo apt-get update
+        sudo apt-get install -y libbluetooth-dev python3-dev
+    fi
+
+    # Create venv if missing
+    if [ ! -d .venv ]; then
+        echo 'Creating virtual environment...'
+        python3 -m venv .venv
+    fi
+    
+    # Install/Update dependencies
+    echo 'Installing dependencies (forcing reinstall to ensure code update)...'
+    .venv/bin/pip install --upgrade pip
+    .venv/bin/pip install --force-reinstall --no-deps .
+    
+    # Verify code sync
+    echo 'Verifying code sync...'
+    if grep -q "sensor_config=self.sensor_config" src/sensorpajen/main.py; then
+        echo "✅ main.py has latest changes."
+    else
+        echo "❌ main.py does NOT have latest changes! Rsync might have failed."
+    fi
+
+    # Ensure config exists (copy from system or examples if totally missing)
+    if [ ! -d config ]; then mkdir config; fi
+    
+    # Rename DB to match default expectation in config.py (sensorpajen.db) if it was copied as discovered_sensors.db
+    # Blindly try to copy with sudo since we can't check existence in restricted dir
+    echo 'Copying config files from /etc/sensorpajen (blindly due to permissions)...'
+    
+    # DB
+    # Only copy if they don't exist locally to preserve dev data
+    if [ ! -f config/sensorpajen.db ]; then
+        echo 'Copying database from system...'
+        # Try discovered_sensors.db first, then sensorpajen.db
+        if [ -f /etc/sensorpajen/discovered_sensors.db ]; then
+            sudo cp /etc/sensorpajen/discovered_sensors.db config/sensorpajen.db 2>/dev/null || true
+        elif [ -f /etc/sensorpajen/sensorpajen.db ]; then
+            sudo cp /etc/sensorpajen/sensorpajen.db config/sensorpajen.db 2>/dev/null || true
+        fi
+        # Ensure correct ownership immediately after copy
+        sudo chown $REMOTE_USER:$REMOTE_USER config/sensorpajen.db 2>/dev/null || true
+    else
+        echo 'Preserving existing database config/sensorpajen.db'
+    fi
+    
+    # Configs
+    # Only copy if they don't exist locally to preserve dev changes
+    if [ ! -f config/sensors.json ]; then
+        echo 'Copying sensors.json from system...'
+        sudo cp /etc/sensorpajen/sensors.json config/sensors.json 2>/dev/null || true
+    else
+        echo 'Preserving existing config/sensors.json'
+    fi
+
+    if [ ! -f config/sensorpajen.env ]; then
+        echo 'Copying sensorpajen.env from system...'
+        sudo cp /etc/sensorpajen/sensorpajen.env config/sensorpajen.env 2>/dev/null || true
+    else
+        echo 'Preserving existing config/sensorpajen.env'
+    fi
+    
+    # ALWAYS sanitize sensorpajen.env to ensure we don't use system paths
+    # and set explicit dev paths
+    if [ -f config/sensorpajen.env ]; then
+        echo 'Sanitizing and setting dev paths in config/sensorpajen.env...'
+        sudo sed -i '/^SENSOR_CONFIG_FILE/d' config/sensorpajen.env
+        sudo sed -i '/^DATABASE_FILE/d' config/sensorpajen.env
+        sudo sed -i '/^DISCOVERED_SENSORS_FILE/d' config/sensorpajen.env
+        
+        # Add dev paths explicitly (use absolute paths since we're in ssh context)
+        echo "SENSOR_CONFIG_FILE=/home/$REMOTE_USER/sensorpajen-dev/config/sensors.json" | sudo tee -a config/sensorpajen.env > /dev/null
+        echo "DATABASE_FILE=/home/$REMOTE_USER/sensorpajen-dev/config/sensorpajen.db" | sudo tee -a config/sensorpajen.env > /dev/null
+        echo "DISCOVERED_SENSORS_FILE=/home/$REMOTE_USER/sensorpajen-dev/config/discovered_sensors.json" | sudo tee -a config/sensorpajen.env > /dev/null
+    fi
+    
+    # Examples (if real config missing)
+    # We don't need to do anything here, the rsync already brought examples if they exist locally
+    
+    # FIX OWNERSHIP recursively
+    echo 'Fixing permissions...'
+    sudo chown -R $REMOTE_USER:$REMOTE_USER $REMOTE_DIR
+"
+
+# 3. Stop Production Service
+log "Stopping production service to free up Bluetooth..."
+ssh -t $REMOTE_USER@$REMOTE_HOST "sudo systemctl stop sensorpajen"
+
+# 4. Run Dev Backend in Background
+log "Starting DEV backend on remote..."
+
+# Grant capabilities to the venv python
+ssh -t $REMOTE_USER@$REMOTE_HOST "
+    cd $REMOTE_DIR
+    PYTHON_BIN=\$(readlink -f .venv/bin/python3)
+    # Install libcap2-bin if missing
+    if ! command -v setcap &> /dev/null; then
+        sudo apt-get install -y libcap2-bin
+    fi
+    sudo setcap cap_net_raw,cap_net_admin+eip \"\$PYTHON_BIN\"
+"
+
+# Run backend as USER (not sudo) so DB files are owned by user
+# Source env vars if available
+ssh $REMOTE_USER@$REMOTE_HOST "
+    cd $REMOTE_DIR
+    if [ -f config/sensorpajen.env ]; then
+        set -a
+        source config/sensorpajen.env
+        set +a
+    fi
+    .venv/bin/python3 -m sensorpajen.main > dev_backend.log 2>&1 &
+    echo \$!
+" > .remote_pid
+
+BG_PID=$(cat .remote_pid)
+rm .remote_pid
+log "Dev backend started with PID: $BG_PID"
+
+# Wait a moment for backend to initialize DB
+sleep 3
+
+# 5. Run TUI
+log "Launching TUI..."
+log "${GREEN}Disconnecting will stop the dev backend and restart the service.${NC}"
+ssh -t $REMOTE_USER@$REMOTE_HOST "
+    cd $REMOTE_DIR
+    source .venv/bin/activate
+    if [ -f config/sensorpajen.env ]; then
+        set -a
+        source config/sensorpajen.env
+        set +a
+    fi
+    export TUI_LOG_FILE=dev_backend.log
+    # Run TUI
+    python3 -m sensorpajen.tui.app
+"
+
+# Cleanup happens via trap

scripts/verify-deb.sh

@@ -0,0 +1,184 @@
+#!/bin/bash
+# Automated verification script for Debian package
+
+set -e
+
+# Colors for output
+GREEN='\033[0;32m'
+RED='\033[0;31m'
+YELLOW='\033[1;33m'
+NC='\033[0m' # No Color
+
+echo "======================================================================"
+echo "  Sensorpajen Debian Package Verification"
+echo "======================================================================"
+echo ""
+
+# Check dependencies
+echo -n "Checking for dpkg-deb... "
+if command -v dpkg-deb >/dev/null 2>&1; then
+    echo -e "${GREEN}OK${NC}"
+else
+    echo -e "${RED}MISSING${NC}"
+    echo "Install with: sudo apt install dpkg-dev"
+    exit 1
+fi
+
+echo -n "Checking for lintian... "
+if command -v lintian >/dev/null 2>&1; then
+    echo -e "${GREEN}OK${NC}"
+else
+    echo -e "${YELLOW}MISSING${NC}"
+    echo "Install with: sudo apt install lintian"
+    echo "Continuing without lintian checks..."
+    SKIP_LINTIAN=1
+fi
+
+echo -n "Checking for debhelper... "
+if dpkg -l debhelper >/dev/null 2>&1; then
+    echo -e "${GREEN}OK${NC}"
+else
+    echo -e "${YELLOW}MISSING${NC}"
+    echo "Install with: sudo apt install debhelper"
+fi
+
+echo ""
+
+# Get project root
+SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+PROJECT_ROOT="$( cd "$SCRIPT_DIR/.." && pwd )"
+
+cd "$PROJECT_ROOT"
+
+# Check required files exist
+echo "Checking required files..."
+REQUIRED_FILES=(
+    "debian/control"
+    "debian/rules"
+    "debian/install"
+    "debian/changelog"
+    "debian/postinst"
+    "debian/prerm"
+    "debian/postrm"
+    "debian/sensorpajen.service"
+    "src/sensorpajen/main.py"
+    "pyproject.toml"
+)
+
+# Optional files (debian/compat is now optional - use Build-Depends instead)
+OPTIONAL_FILES=(
+    "debian/compat"
+)
+
+ALL_FILES_OK=1
+for file in "${REQUIRED_FILES[@]}"; do
+    echo -n "  $file... "
+    if [ -f "$file" ]; then
+        echo -e "${GREEN}OK${NC}"
+    else
+        echo -e "${RED}MISSING${NC}"
+        ALL_FILES_OK=0
+    fi
+done
+
+# Check optional files
+for file in "${OPTIONAL_FILES[@]}"; do
+    echo -n "  $file... "
+    if [ -f "$file" ]; then
+        echo -e "${GREEN}OK${NC}"
+    else
+        echo -e "${YELLOW}OPTIONAL${NC}"
+    fi
+done
+
+if [ $ALL_FILES_OK -eq 0 ]; then
+    echo -e "${RED}Some required files are missing!${NC}"
+    exit 1
+fi
+
+echo ""
+
+# Extract version from pyproject.toml
+VERSION=$(grep '^version = ' pyproject.toml | sed 's/version = "\(.*\)"/\1/')
+echo "Package version: $VERSION"
+echo ""
+
+# Clean previous builds
+echo "Cleaning previous builds..."
+rm -f ../*.deb ../*.build ../*.buildinfo ../*.changes
+rm -rf debian/.debhelper debian/sensorpajen debian/files
+
+# Build the package with gzip compression (for compatibility)
+echo "Building Debian package..."
+echo "======================================================================"
+dpkg-buildpackage -us -uc -b -Zgzip
+
+if [ $? -ne 0 ]; then
+    echo -e "${RED}Build failed!${NC}"
+    exit 1
+fi
+
+echo ""
+echo -e "${GREEN}Build successful!${NC}"
+echo ""
+
+# Find the built package
+DEB_FILE=$(ls -t ../*.deb 2>/dev/null | head -1)
+
+if [ -z "$DEB_FILE" ]; then
+    echo -e "${RED}No .deb file found!${NC}"
+    exit 1
+fi
+
+echo "Package: $DEB_FILE"
+echo ""
+
+# Show package contents
+echo "Package contents:"
+echo "======================================================================"
+dpkg-deb -c "$DEB_FILE" | sed -n '1,20p'
+TOTAL_FILES=$(dpkg-deb -c "$DEB_FILE" | wc -l)
+if [ $TOTAL_FILES -gt 20 ]; then
+    echo "... and $(($TOTAL_FILES - 20)) more files"
+fi
+echo ""
+
+# Show package info
+echo "Package information:"
+echo "======================================================================"
+dpkg-deb -I "$DEB_FILE"
+echo ""
+
+# Run lintian if available
+if [ -z "$SKIP_LINTIAN" ]; then
+    echo "Running lintian checks..."
+    echo "======================================================================"
+    
+    # Run lintian - allow warnings but fail on errors
+    if lintian "$DEB_FILE"; then
+        echo -e "${GREEN}Lintian passed!${NC}"
+    else
+        LINTIAN_EXIT=$?
+        echo -e "${YELLOW}Lintian found issues (exit code: $LINTIAN_EXIT)${NC}"
+        echo "Review the output above. Warnings are acceptable, errors should be fixed."
+    fi
+    echo ""
+fi
+
+# Final summary
+echo "======================================================================"
+echo -e "${GREEN}Package verification complete!${NC}"
+echo "======================================================================"
+echo ""
+echo "Package location: $DEB_FILE"
+echo ""
+echo "To install on a Raspberry Pi:"
+echo "  scp $DEB_FILE pi@raspberrypi:~/"
+echo "  ssh pi@raspberrypi"
+echo "  sudo apt install ./$(basename $DEB_FILE)"
+echo ""
+echo "To test locally (not recommended, will modify /opt and /etc):"
+echo "  sudo apt install $DEB_FILE"
+echo ""
+
+exit 0

src/sensorpajen/__init__.py

@@ -5,6 +5,6 @@ Monitors Xiaomi Mijia LYWSD03MMC Bluetooth temperature sensors
 and publishes data to MQTT broker.
 """
 
-__version__ = "2.0.0-dev"
+__version__ = "3.0.0"
 __author__ = "Fredrik"
 __license__ = "MIT"

src/sensorpajen/approve_sensors.py

@@ -153,8 +153,10 @@ def approve_sensor(sensor: DiscoveredSensor, manager: DiscoveryManager):
         print(f"   Name: {name}")
         print(f"   Configuration will be reloaded automatically within 15 minutes")
         
-        # Mark as approved in discovery manager
+        # Mark as approved in discovery manager and save
+        print(f"\nUpdating discovery status...")
         manager.approve(sensor.mac)
+        print(f"✅ Marked as approved in discovered_sensors.json")
         
     except Exception as e:
         print(f"\n❌ Error saving to sensors.json: {e}")
@@ -172,7 +174,7 @@ def ignore_sensor(sensor: DiscoveredSensor, manager: DiscoveryManager):
     
     manager.ignore(sensor.mac, reason if reason else None)
     
-    print(f"\n✅ Sensor ignored")
+    print(f"\n✅ Sensor ignored and marked in discovered_sensors.json")
     if reason:
         print(f"   Reason: {reason}")
 

src/sensorpajen/config.py

@@ -9,12 +9,35 @@ import os
 import json
 import logging
 from pathlib import Path
-from typing import Dict, List
+from typing import Dict, List, Optional
 
 logger = logging.getLogger(__name__)
 
-# Determine project root (3 levels up from this file: src/sensorpajen/config.py)
-PROJECT_ROOT = Path(__file__).parent.parent.parent
+# Determine project root and config directory
+# Check if running from system installation (/opt/sensorpajen)
+current_file = Path(__file__).resolve()
+is_system_install = str(current_file).startswith('/opt/sensorpajen')
+
+if is_system_install:
+    # System installation
+    PROJECT_ROOT = Path('/opt/sensorpajen')
+    CONFIG_DIR = Path('/etc/sensorpajen')
+    STATE_DIR = Path('/var/lib/sensorpajen')
+else:
+    # Development installation
+    # Enforce using directory explicitly for dev-remote case
+    # In dev-remote, we run from ~/sensorpajen-dev context
+    
+    # Check if we are in sensorpajen-dev environment
+    cwd = Path.cwd()
+    if 'sensorpajen-dev' in str(cwd) or (cwd / 'config').exists():
+         PROJECT_ROOT = cwd
+    else:
+         # Fallback logic
+         PROJECT_ROOT = Path(__file__).parent.parent.parent
+
+    CONFIG_DIR = PROJECT_ROOT / "config"
+    STATE_DIR = CONFIG_DIR
 
 # MQTT Configuration from environment
 MQTT_HOST = os.environ.get("MQTT_HOST")
@@ -24,17 +47,18 @@ MQTT_PASSWORD = os.environ.get("MQTT_PASSWORD")
 MQTT_CLIENT_ID = os.environ.get("MQTT_CLIENT_ID", "sensorpajen")
 MQTT_TOPIC_PREFIX = os.environ.get("MQTT_TOPIC_PREFIX", "MiTemperature2")
 
-# Validate required MQTT configuration
-if not MQTT_HOST:
+def validate_mqtt_config():
+    """Validate that required MQTT configuration is present."""
+    if not MQTT_HOST:
         raise RuntimeError(
             "MQTT_HOST environment variable must be set. "
             "Please configure config/sensorpajen.env"
         )
 
-# Sensor configuration file (relative to project root)
+# Sensor configuration file
 SENSOR_CONFIG_FILE = os.environ.get(
     "SENSOR_CONFIG_FILE",
-    str(PROJECT_ROOT / "config/sensors.json")
+    str(CONFIG_DIR / "sensors.json")
 )
 
 # Application settings
@@ -55,7 +79,11 @@ NTFY_TOKEN = os.environ.get("NTFY_TOKEN", "")
 # Discovery settings
 DISCOVERED_SENSORS_FILE = os.environ.get(
     "DISCOVERED_SENSORS_FILE",
-    str(PROJECT_ROOT / "config/discovered_sensors.json")
+    str(STATE_DIR / "discovered_sensors.json")
+)
+DATABASE_FILE = os.environ.get(
+    "DATABASE_FILE",
+    str(STATE_DIR / "sensorpajen.db")
 )
 CONFIG_RELOAD_INTERVAL = int(os.environ.get("CONFIG_RELOAD_INTERVAL", "900"))  # 15 minutes
 
@@ -72,16 +100,17 @@ class SensorConfig:
         """
         self.config_file = Path(config_file)
         self.sensors: Dict[str, str] = {}
+        self.comments: Dict[str, str] = {}
         self.load()
     
     def load(self):
         """Load sensor configuration from JSON file."""
         if not self.config_file.exists():
-            raise FileNotFoundError(
+            logger.warning(
                 f"Sensor configuration file not found: {self.config_file}\n"
-                f"Please copy config/sensors.json.example to config/sensors.json "
-                f"and configure your sensors."
+                f"Starting with no sensors - use discovery to add sensors"
             )
+            return
         
         try:
             with open(self.config_file, 'r') as f:
@@ -91,9 +120,12 @@ class SensorConfig:
             for sensor in data.get('sensors', []):
                 mac = sensor.get('mac', '').upper()
                 name = sensor.get('name')
+                comment = sensor.get('comment')
                 
                 if mac and name:
                     self.sensors[mac] = name
+                    if isinstance(comment, str) and comment != "":
+                        self.comments[mac] = comment
                     logger.debug(f"Loaded sensor: {mac} -> {name}")
             
             logger.info(f"Loaded {len(self.sensors)} sensors from {self.config_file}")
@@ -119,13 +151,190 @@ class SensorConfig:
         """Get list of all configured MAC addresses."""
         return list(self.sensors.keys())
 
+    def get_comment(self, mac: str) -> Optional[str]:
+        """Get sensor comment by MAC address, if present."""
+        return self.comments.get(mac.upper())
+
+    def add_sensor(self, mac: str, name: str, comment: Optional[str] = None):
+        """
+        Add or update a sensor in the configuration.
+        
+        Args:
+            mac: MAC address
+            name: Sensor name
+            comment: Optional comment
+        """
+        mac = mac.upper()
+        logger.debug(f"add_sensor called: MAC={mac}, name={name}")
+        self.sensors[mac] = name
+        if comment is not None:
+            # Allow explicit clearing by passing empty string
+            if comment == "":
+                self.comments.pop(mac, None)
+            else:
+                self.comments[mac] = comment
+        logger.debug(f"Updated in-memory dict: {mac} -> {name}")
+        logger.debug(f"Current sensors dict: {self.sensors}")
+        try:
+            self.save(mac, name, comment)
+            logger.info(f"Successfully saved sensor {mac}={name}")
+        except Exception as e:
+            # If save fails, remove from memory too
+            logger.error(f"Failed to save sensor {mac}: {e}")
+            if mac in self.sensors:
+                del self.sensors[mac]
+            raise e
+
+    def remove_sensor(self, mac: str):
+        """
+        Remove a sensor from the configuration.
+        
+        Args:
+            mac: MAC address
+        """
+        mac = mac.upper()
+        if mac in self.sensors:
+            del self.sensors[mac]
+            self.comments.pop(mac, None)
+            
+            # Load current file, remove entry, and save
+            try:
+                if self.config_file.exists():
+                    with open(self.config_file, 'r') as f:
+                        data = json.load(f)
+                    
+                    sensors = data.get('sensors', [])
+                    data['sensors'] = [s for s in sensors if s.get('mac', '').upper() != mac]
+                    
+                    with open(self.config_file, 'w') as f:
+                        json.dump(data, f, indent=2)
+                    logger.info(f"Removed sensor {mac} from {self.config_file}")
+            except Exception as e:
+                logger.error(f"Error removing sensor from config: {e}")
+
+    def save(self, mac: str, name: str, comment: Optional[str] = None):
+        """
+        Save a sensor to the configuration file.
+        
+        Args:
+            mac: MAC address
+            name: Sensor name
+            comment: Optional comment
+        """
+        mac = mac.upper()
+        logger.debug(f"save() called for MAC={mac}, name={name}")
+        data = {"sensors": []}
+        
+        try:
+            if self.config_file.exists():
+                logger.debug(f"Reading existing config from {self.config_file}")
+                with open(self.config_file, 'r') as f:
+                    data = json.load(f)
+                logger.debug(f"Loaded config with {len(data.get('sensors', []))} sensors")
+            else:
+                logger.debug(f"Config file does not exist: {self.config_file}")
+            
+            sensors = data.get('sensors', [])
+            # Update existing or add new
+            found = False
+            for s in sensors:
+                if s.get('mac', '').upper() == mac:
+                    logger.debug(f"Found existing sensor entry for {mac}, updating name")
+                    s['name'] = name
+                    if comment is not None:
+                        if comment == "":
+                            s.pop('comment', None)
+                        else:
+                            s['comment'] = comment
+                    found = True
+                    break
+            
+            if not found:
+                logger.debug(f"Sensor {mac} not found in config, adding new entry")
+                new_sensor = {"mac": mac, "name": name}
+                if comment is not None and comment != "":
+                    new_sensor["comment"] = comment
+                sensors.append(new_sensor)
+            
+            data['sensors'] = sensors
+            
+            # Ensure directory exists
+            self.config_file.parent.mkdir(parents=True, exist_ok=True)
+            
+            logger.debug(f"Writing {len(sensors)} sensors to {self.config_file}")
+            with open(self.config_file, 'w') as f:
+                json.dump(data, f, indent=2)
+            logger.info(f"Saved sensor {mac} to {self.config_file}")
+            
+            # Verify the write
+            with open(self.config_file, 'r') as f:
+                saved_data = json.load(f)
+                saved_sensors = saved_data.get('sensors', [])
+                logger.debug(f"Verification: File now contains {len(saved_sensors)} sensors")
+                for s in saved_sensors:
+                    if s.get('mac', '').upper() == mac:
+                        logger.debug(f"Verification: Found {mac} in file with name={s.get('name')}")
+            
+        except Exception as e:
+            logger.error(f"Error saving sensor config: {e}", exc_info=True)
+            raise e
+
+
+def save_env_var(key: str, value: str):
+    """
+    Update a value in the sensorpajen.env file.
+    
+    Args:
+        key: Environment variable name
+        value: New value
+    """
+    env_file = CONFIG_DIR / "sensorpajen.env"
+    
+    if not env_file.exists():
+        raise FileNotFoundError(f"Env file not found: {env_file}")
+
+    try:
+        lines = []
+        with open(env_file, 'r') as f:
+            lines = f.readlines()
+        
+        new_lines = []
+        found = False
+        for line in lines:
+            if line.strip().startswith(f"{key}="):
+                new_lines.append(f"{key}={value}\n")
+                found = True
+            else:
+                new_lines.append(line)
+        
+        if not found:
+            # Add to end if not found
+            if new_lines and not new_lines[-1].endswith('\n'):
+                new_lines.append('\n')
+            new_lines.append(f"{key}={value}\n")
+        
+        with open(env_file, 'w') as f:
+            f.writelines(new_lines)
+            
+        logger.info(f"Updated {key} in {env_file}")
+            
+    except Exception as e:
+        logger.error(f"Error updating env file: {e}")
+        raise e
+
 
 def validate_config():
     """
     Validate configuration and log settings.
     Should be called at application startup.
     """
+    validate_mqtt_config()
+    install_type = "System" if Path('/opt/sensorpajen').exists() else "Development"
     logger.info("=== Sensorpajen Configuration ===")
+    logger.info(f"Installation Type: {install_type}")
+    logger.info(f"Project Root: {PROJECT_ROOT}")
+    logger.info(f"Config Directory: {CONFIG_DIR}")
+    logger.info(f"State Directory: {STATE_DIR}")
     logger.info(f"MQTT Host: {MQTT_HOST}:{MQTT_PORT}")
     logger.info(f"MQTT User: {MQTT_USER}")
     logger.info(f"MQTT Client ID: {MQTT_CLIENT_ID}")

src/sensorpajen/db.py

@@ -0,0 +1,114 @@
+import sqlite3
+import logging
+from pathlib import Path
+from datetime import datetime
+from typing import List, Dict, Any, Optional
+
+logger = logging.getLogger(__name__)
+
+class DatabaseManager:
+    """Manages SQLite database for discovered sensors."""
+    
+    def __init__(self, db_path: str):
+        self.db_path = Path(db_path)
+        
+    def _get_connection(self):
+        conn = sqlite3.connect(str(self.db_path))
+        conn.row_factory = sqlite3.Row
+        return conn
+
+    def initialize(self):
+        """Initialize the database schema."""
+        self.db_path.parent.mkdir(parents=True, exist_ok=True)
+        
+        with self._get_connection() as conn:
+            conn.execute("""
+                CREATE TABLE IF NOT EXISTS discovered_sensors (
+                    mac TEXT PRIMARY KEY,
+                    name TEXT,
+                    rssi INTEGER,
+                    first_seen TIMESTAMP,
+                    last_seen TIMESTAMP,
+                    count INTEGER DEFAULT 0,
+                    last_temp REAL,
+                    last_humidity REAL,
+                    last_battery_percent INTEGER,
+                    last_battery_voltage INTEGER,
+                    status TEXT DEFAULT 'pending',
+                    reviewed BOOLEAN DEFAULT 0,
+                    ignored_at TIMESTAMP,
+                    ignore_reason TEXT
+                )
+            """)
+            logger.info(f"Database initialized at {self.db_path}")
+
+    def add_or_update_sensor(self, mac: str, name: str, rssi: int, 
+                             temp: float, humidity: float, 
+                             battery_percent: int, battery_voltage: int):
+        """Add a new sensor or update an existing one."""
+        now = datetime.now().isoformat()
+        mac = mac.upper()
+        
+        with self._get_connection() as conn:
+            # Check if exists
+            cursor = conn.execute("SELECT count, first_seen FROM discovered_sensors WHERE mac = ?", (mac,))
+            row = cursor.fetchone()
+            
+            if row:
+                count = row['count'] + 1
+                conn.execute("""
+                    UPDATE discovered_sensors SET
+                        name = ?,
+                        rssi = ?,
+                        last_seen = ?,
+                        count = ?,
+                        last_temp = ?,
+                        last_humidity = ?,
+                        last_battery_percent = ?,
+                        last_battery_voltage = ?
+                    WHERE mac = ?
+                """, (name, rssi, now, count, temp, humidity, battery_percent, battery_voltage, mac))
+            else:
+                conn.execute("""
+                    INSERT INTO discovered_sensors (
+                        mac, name, rssi, first_seen, last_seen, count, 
+                        last_temp, last_humidity, last_battery_percent, last_battery_voltage
+                    ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+                """, (mac, name, rssi, now, now, 1, temp, humidity, battery_percent, battery_voltage))
+
+    def get_sensor(self, mac: str) -> Optional[Dict[str, Any]]:
+        """Get a single sensor by MAC."""
+        with self._get_connection() as conn:
+            cursor = conn.execute("SELECT * FROM discovered_sensors WHERE mac = ?", (mac.upper(),))
+            row = cursor.fetchone()
+            return dict(row) if row else None
+
+    def get_sensors(self, status: Optional[str] = None) -> List[Dict[str, Any]]:
+        """Get all sensors, optionally filtered by status."""
+        query = "SELECT * FROM discovered_sensors"
+        params = []
+        
+        if status:
+            query += " WHERE status = ?"
+            params.append(status)
+            
+        with self._get_connection() as conn:
+            cursor = conn.execute(query, params)
+            return [dict(row) for row in cursor.fetchall()]
+
+    def update_status(self, mac: str, status: str, reason: Optional[str] = None):
+        """Update the status of a sensor."""
+        now = datetime.now().isoformat() if status == 'ignored' else None
+        with self._get_connection() as conn:
+            conn.execute("""
+                UPDATE discovered_sensors SET 
+                    status = ?, 
+                    ignored_at = ?, 
+                    ignore_reason = ? 
+                WHERE mac = ?
+            """, (status, now, reason, mac.upper()))
+
+    def mark_reviewed(self, mac: str):
+        """Mark a sensor as reviewed."""
+        with self._get_connection() as conn:
+            conn.execute("UPDATE discovered_sensors SET reviewed = 1 WHERE mac = ?", (mac.upper(),))

src/sensorpajen/discovery_manager.py

@@ -4,15 +4,14 @@ Discovery manager for tracking and managing discovered sensors.
 Maintains a database of discovered sensors with their metadata and status.
 """
 
-import json
 import logging
 import subprocess
 from datetime import datetime
-from pathlib import Path
 from typing import Dict, List, Optional
-from dataclasses import dataclass, asdict
+from dataclasses import dataclass
 
 from . import config
+from .db import DatabaseManager
 
 logger = logging.getLogger(__name__)
 
@@ -30,61 +29,45 @@ class DiscoveredSensor:
     reviewed: bool = False  # Has been shown in approval CLI
     ignored_at: Optional[str] = None
     ignore_reason: Optional[str] = None
+    count: int = 0
 
 
 class DiscoveryManager:
-    """Manages discovered sensors and their approval status."""
+    """Manages discovered sensors and their approval status using SQLite."""
     
-    def __init__(self, discovery_file: str = config.DISCOVERED_SENSORS_FILE):
+    
+    def __init__(self, db_path: str = config.DATABASE_FILE, sensor_config: Optional[config.SensorConfig] = None):
         """
         Initialize discovery manager.
         
         Args:
-            discovery_file: Path to discovered sensors JSON file
+            db_path: Path to SQLite database file
+            sensor_config: Optional reference to SensorConfig to filter pending list
         """
-        self.discovery_file = Path(discovery_file)
-        self.sensors: Dict[str, DiscoveredSensor] = {}
-        self.load()
+        self.db = DatabaseManager(db_path)
+        self.db.initialize()
+        self.sensor_config = sensor_config
     
-    def load(self):
-        """Load discovered sensors from JSON file."""
-        if not self.discovery_file.exists():
-            logger.info(f"Creating new discovered sensors file: {self.discovery_file}")
-            self.discovery_file.parent.mkdir(parents=True, exist_ok=True)
-            self.save()
-            return
-        
-        try:
-            with open(self.discovery_file, 'r') as f:
-                data = json.load(f)
-            
-            for sensor_data in data:
-                sensor = DiscoveredSensor(**sensor_data)
-                self.sensors[sensor.mac.upper()] = sensor
-            
-            logger.info(f"Loaded {len(self.sensors)} discovered sensors")
-            
-        except json.JSONDecodeError as e:
-            logger.error(f"Invalid JSON in {self.discovery_file}: {e}")
-        except Exception as e:
-            logger.error(f"Error loading discovered sensors: {e}")
-    
-    def save(self):
-        """Save discovered sensors to JSON file."""
-        try:
-            # Ensure directory exists
-            self.discovery_file.parent.mkdir(parents=True, exist_ok=True)
-            
-            # Convert sensors to list of dicts
-            data = [asdict(sensor) for sensor in self.sensors.values()]
-            
-            with open(self.discovery_file, 'w') as f:
-                json.dump(data, f, indent=2)
-            
-            logger.debug(f"Saved {len(self.sensors)} discovered sensors")
-            
-        except Exception as e:
-            logger.error(f"Error saving discovered sensors: {e}")
+    def _row_to_sensor(self, row: Dict) -> DiscoveredSensor:
+        """Convert database row to DiscoveredSensor object."""
+        return DiscoveredSensor(
+            mac=row['mac'],
+            name=row['name'],
+            rssi=row['rssi'],
+            first_seen=row['first_seen'],
+            last_seen=row['last_seen'],
+            sample_reading={
+                "temperature": row['last_temp'],
+                "humidity": row['last_humidity'],
+                "battery_percent": row['last_battery_percent'],
+                "battery_voltage": row['last_battery_voltage']
+            },
+            status=row['status'],
+            reviewed=bool(row['reviewed']),
+            ignored_at=row['ignored_at'],
+            ignore_reason=row['ignore_reason'],
+            count=row['count']
+        )
 
     def add_or_update(self, mac: str, name: str, rssi: int, 
                      temperature: float, humidity: float, 
@@ -92,137 +75,92 @@ class DiscoveryManager:
         """
         Add or update a discovered sensor.
         
-        Args:
-            mac: MAC address
-            name: Advertised device name
-            rssi: Signal strength
-            temperature: Temperature reading
-            humidity: Humidity reading
-            battery_percent: Battery percentage
-            battery_voltage: Battery voltage in mV
-            
         Returns:
             True if this is a newly discovered sensor, False if updated existing
         """
         mac = mac.upper()
-        now = datetime.now().isoformat()
+        existing = self.db.get_sensor(mac)
         
-        sample_reading = {
-            "temperature": temperature,
-            "humidity": humidity,
-            "battery_percent": battery_percent,
-            "battery_voltage": battery_voltage
-        }
-        
-        if mac in self.sensors:
-            # Update existing sensor
-            sensor = self.sensors[mac]
-            sensor.last_seen = now
-            sensor.rssi = rssi
-            sensor.sample_reading = sample_reading
-            self.save()
-            return False
-        else:
-            # New sensor discovered
-            sensor = DiscoveredSensor(
+        self.db.add_or_update_sensor(
             mac=mac,
             name=name,
             rssi=rssi,
-                first_seen=now,
-                last_seen=now,
-                sample_reading=sample_reading,
-                status="pending"
+            temp=temperature,
+            humidity=humidity,
+            battery_percent=battery_percent,
+            battery_voltage=battery_voltage
         )
-            self.sensors[mac] = sensor
-            self.save()
+        
+        if not existing:
             logger.info(f"New sensor discovered: {mac} ({name})")
+            
+            # Send notification for new sensors ONLY if they are not already configured
+            is_configured = False
+            if self.sensor_config:
+                is_configured = mac in self.sensor_config.get_all_macs()
+            
+            if not is_configured:
+                sensor = self._row_to_sensor(self.db.get_sensor(mac))
+                self.send_ntfy_notification(sensor)
+            else:
+                logger.debug(f"Sensor {mac} is configured, skipping new sensor notification")
+                
             return True
+        return False
     
     def is_known(self, mac: str) -> bool:
-        """
-        Check if a sensor has been discovered before.
-        
-        Args:
-            mac: MAC address
-            
-        Returns:
-            True if sensor is in discovered list
-        """
-        return mac.upper() in self.sensors
+        """Check if a sensor has been discovered before."""
+        return self.db.get_sensor(mac) is not None
     
     def get_status(self, mac: str) -> Optional[str]:
-        """
-        Get status of a discovered sensor.
-        
-        Args:
-            mac: MAC address
-            
-        Returns:
-            Status string or None if not found
-        """
-        sensor = self.sensors.get(mac.upper())
-        return sensor.status if sensor else None
+        """Get status of a discovered sensor."""
+        sensor = self.db.get_sensor(mac)
+        return sensor['status'] if sensor else None
     
     def approve(self, mac: str):
-        """
-        Mark a sensor as approved.
-        
-        Args:
-            mac: MAC address
-        """
-        mac = mac.upper()
-        if mac in self.sensors:
-            self.sensors[mac].status = "approved"
-            self.save()
+        """Mark a sensor as approved."""
+        self.db.update_status(mac, "approved")
         logger.info(f"Sensor approved: {mac}")
     
     def ignore(self, mac: str, reason: Optional[str] = None):
-        """
-        Mark a sensor as ignored.
-        
-        Args:
-            mac: MAC address
-            reason: Optional reason for ignoring
-        """
-        mac = mac.upper()
-        if mac in self.sensors:
-            self.sensors[mac].status = "ignored"
-            self.sensors[mac].ignored_at = datetime.now().isoformat()
-            self.sensors[mac].ignore_reason = reason
-            self.save()
+        """Mark a sensor as ignored."""
+        self.db.update_status(mac, "ignored", reason)
         logger.info(f"Sensor ignored: {mac}")
 
+    def unignore(self, mac: str):
+        """Mark an ignored sensor as pending again."""
+        self.db.update_status(mac, "pending")
+        logger.info(f"Sensor unignored: {mac}")
+    
     def get_pending(self) -> List[DiscoveredSensor]:
         """Get list of sensors with status 'pending'."""
-        return [s for s in self.sensors.values() if s.status == "pending"]
+        rows = self.db.get_sensors(status="pending")
+        sensors = [self._row_to_sensor(r) for r in rows]
+        
+        if self.sensor_config:
+            # Filter out sensors that are already configured
+            # (Use MAC from DB row vs keys in sensor_config)
+            configured_macs = self.sensor_config.get_all_macs()
+            return [s for s in sensors if s.mac not in configured_macs]
+        
+        return sensors
     
     def get_new_pending(self) -> List[DiscoveredSensor]:
         """Get list of pending sensors that haven't been reviewed yet."""
-        return [s for s in self.sensors.values() if s.status == "pending" and not s.reviewed]
+        rows = self.db.get_sensors(status="pending")
+        return [self._row_to_sensor(r) for r in rows if not r.reviewed]
     
     def get_ignored(self) -> List[DiscoveredSensor]:
         """Get list of sensors with status 'ignored'."""
-        return [s for s in self.sensors.values() if s.status == "ignored"]
+        rows = self.db.get_sensors(status="ignored")
+        return [self._row_to_sensor(r) for r in rows]
     
     def mark_reviewed(self, mac: str):
-        """
-        Mark a sensor as reviewed (shown in approval CLI).
-        
-        Args:
-            mac: MAC address
-        """
-        mac = mac.upper()
-        if mac in self.sensors:
-            self.sensors[mac].reviewed = True
-            self.save()
+        """Mark a sensor as reviewed."""
+        self.db.mark_reviewed(mac)
     
     def send_ntfy_notification(self, sensor: DiscoveredSensor):
-        """
-        Send ntfy notification for a newly discovered sensor.
-        
-        Args:
-            sensor: Discovered sensor to notify about
-        """
+        """Send ntfy notification for a newly discovered sensor."""
         if not config.NTFY_ENABLED:
             logger.debug("ntfy notifications disabled")
             return
@@ -240,7 +178,7 @@ class DiscoveryManager:
                 f"Temp: {sensor.sample_reading.get('temperature', 'N/A')}°C\n"
                 f"Humidity: {sensor.sample_reading.get('humidity', 'N/A')}%\n"
                 f"Battery: {sensor.sample_reading.get('battery_percent', 'N/A')}%\n\n"
-                f"Run 'sensorpajen approve-sensors' to approve or ignore."
+                f"Run 'sensorpajen-tui' to approve or ignore."
             )
             
             url = f"{config.NTFY_URL}/{config.NTFY_TOPIC}"

src/sensorpajen/main.py

@@ -125,13 +125,13 @@ class Sensorpajen:
             self.sensor_config = config.SensorConfig()
             
             if len(self.sensor_config.sensors) == 0:
-                self.logger.error("No sensors configured!")
-                self.logger.error("Please configure sensors in config/sensors.json")
-                sys.exit(1)
+                self.logger.warning("No sensors configured")
+                self.logger.warning("Starting in discovery-only mode")
+                self.logger.warning("Use 'sensorpajen-tui' to add sensors")
             
             # Initialize discovery manager
             self.logger.info("Initializing discovery manager...")
-            self.discovery_manager = DiscoveryManager()
+            self.discovery_manager = DiscoveryManager(sensor_config=self.sensor_config)
             
             # Initialize MQTT publisher
             self.logger.info("Initializing MQTT publisher...")

src/sensorpajen/migrate_to_db.py

@@ -0,0 +1,62 @@
+import json
+import logging
+from pathlib import Path
+from . import config
+from .db import DatabaseManager
+
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger(__name__)
+
+def migrate():
+    json_file = Path(config.DISCOVERED_SENSORS_FILE)
+    db_file = Path(config.DATABASE_FILE)
+    
+    if not json_file.exists():
+        logger.info(f"No JSON discovery file found at {json_file}. Nothing to migrate.")
+        return
+
+    logger.info(f"Migrating data from {json_file} to {db_file}")
+    
+    db = DatabaseManager(str(db_file))
+    db.initialize()
+    
+    try:
+        with open(json_file, 'r') as f:
+            sensors = json.load(f)
+            
+        for s in sensors:
+            mac = s.get('mac')
+            name = s.get('name', 'Unknown')
+            rssi = s.get('rssi', 0)
+            reading = s.get('sample_reading', {})
+            
+            db.add_or_update_sensor(
+                mac=mac,
+                name=name,
+                rssi=rssi,
+                temp=reading.get('temperature', 0),
+                humidity=reading.get('humidity', 0),
+                battery_percent=reading.get('battery_percent', 0),
+                battery_voltage=reading.get('battery_voltage', 0)
+            )
+            
+            # Update status and metadata
+            status = s.get('status', 'pending')
+            reason = s.get('ignore_reason')
+            db.update_status(mac, status, reason)
+            
+            if s.get('reviewed'):
+                db.mark_reviewed(mac)
+                
+        logger.info(f"Successfully migrated {len(sensors)} sensors.")
+        
+        # Rename old file to avoid re-migration
+        backup_file = json_file.with_suffix('.json.bak')
+        json_file.rename(backup_file)
+        logger.info(f"Original file backed up to {backup_file}")
+        
+    except Exception as e:
+        logger.error(f"Migration failed: {e}")
+
+if __name__ == "__main__":
+    migrate()

src/sensorpajen/mqtt_publisher.py

@@ -17,6 +17,7 @@ class MQTTPublisher:
     
     def __init__(self):
         """Initialize MQTT publisher with configuration."""
+        config.validate_mqtt_config()
         self.client: Optional[mqtt.Client] = None
         self.connected = False
         self._setup_client()

src/sensorpajen/sensor_reader.py

@@ -196,6 +196,19 @@ class SensorReader:
             
             # Create measurement for known sensor
             sensor_name = self.sensor_config.get_name(mac_with_colons)
+            
+            # --- PHASE 2: Update live data in DB for TUI ---
+            self.discovery_manager.add_or_update(
+                mac_with_colons,
+                sensor_name,
+                rssi,
+                temperature,
+                humidity,
+                battery_percent,
+                battery_voltage
+            )
+            # -----------------------------------------------
+            
             measurement = Measurement(
                 temperature=temperature,
                 humidity=humidity,
@@ -254,9 +267,8 @@ class SensorReader:
         )
         
         if is_new:
-            logger.info(f"New sensor discovered: {mac} ({device_name})")
-            sensor = self.discovery_manager.sensors[mac]
-            self.discovery_manager.send_ntfy_notification(sensor)
+            # Notification is handled by DiscoveryManager
+            pass
     
     def _parse_atc_data(self, data_str: str) -> Optional[tuple]:
         """

src/sensorpajen/tui/app.py

@@ -0,0 +1,700 @@
+from textual.app import App, ComposeResult
+from textual.binding import Binding
+from textual.widgets import Header, Footer, TabbedContent, TabPane, DataTable, Static, Button
+from textual.containers import Container, Horizontal
+from textual import on
+
+import asyncio
+
+import logging
+import os
+from pathlib import Path
+from typing import Callable, Optional
+
+from ..discovery_manager import DiscoveryManager
+from ..config import SensorConfig, save_env_var
+from .modals import InputModal, ConfirmModal, DetailsModal, EditSensorModal
+
+
+def _format_metadata_comment(mac: str, name: str, last_seen: str, sample_reading: dict) -> str:
+    return (
+        f"MAC: {mac}, "
+        f"Name: {name}, "
+        f"Last seen: {last_seen}, "
+        f"Temp: {sample_reading.get('temperature', 'N/A')}°C, "
+        f"Humidity: {sample_reading.get('humidity', 'N/A')}%, "
+        f"Battery: {sample_reading.get('battery_percent', 'N/A')}%"
+    )
+
+
+def _setup_tui_file_logging() -> logging.Logger:
+    """Log to a file (not stdout/stderr) to avoid breaking Textual fullscreen UI."""
+    logger = logging.getLogger("sensorpajen.tui")
+    if logger.handlers:
+        return logger
+
+    log_file = Path(os.environ.get("TUI_LOG_FILE", "dev_backend.log"))
+    if not log_file.is_absolute():
+        log_file = Path.cwd() / log_file
+    try:
+        handler = logging.FileHandler(log_file, mode="a", encoding="utf-8")
+        handler.setFormatter(
+            logging.Formatter("%(asctime)s - %(name)s - %(levelname)s - %(message)s")
+        )
+        logger.addHandler(handler)
+        logger.setLevel(logging.DEBUG)
+        logger.propagate = False
+        logger.info("TUI logging enabled -> %s", log_file)
+    except Exception as exc:
+        # If we can't write logs, keep UI working.
+        try:
+            logger.setLevel(logging.CRITICAL)
+            logger.propagate = False
+        except Exception:
+            pass
+
+    return logger
+
+
+tui_logger = _setup_tui_file_logging()
+
+class SensorpajenApp(App):
+    """A Textual app to manage Bluetooth sensors."""
+
+    CSS = """
+    Screen {
+        background: $surface;
+    }
+    
+    DataTable {
+        height: 1fr;
+        margin: 1;
+    }
+
+    #modal-container {
+        width: 50;
+        height: auto;
+        background: $panel;
+        border: thick $primary;
+        padding: 1;
+        align: center middle;
+    }
+
+    #modal-buttons {
+        margin-top: 1;
+        height: auto;
+        align: center middle;
+    }
+
+    #modal-buttons Button {
+        margin: 0 1;
+    }
+    
+    /* Dashboard specific CSS */
+    .dashboard-row {
+        height: auto;
+        margin: 1;
+    }
+    
+    .dash-stat {
+        width: 1fr;
+        height: auto;
+        border: solid $accent;
+        padding: 1;
+        margin: 1;
+        text-align: center;
+    }
+    
+    .dashboard-controls {
+        height: auto;
+        align: center middle;
+        margin-top: 2;
+    }
+    
+    .dashboard-controls Button {
+        margin: 0 2;
+    }
+    """
+
+    # Use priority bindings so keys still reach the App even when a DataTable has focus.
+    BINDINGS = [
+        Binding("q", "quit", "Quit", priority=True),
+        Binding("d", "toggle_dark", "Toggle dark mode", priority=True),
+        Binding("r", "refresh", "Refresh data", priority=True),
+        Binding("a", "approve", "Approve", priority=True),
+        Binding("i", "ignore", "Ignore", priority=True),
+        Binding("e", "edit", "Edit", priority=True),
+        Binding("v", "view_details", "Details", priority=True),
+        Binding("u", "unignore", "Unignore", priority=True),
+        Binding("delete", "remove", "Remove", priority=True),
+    ]
+
+    def __init__(self, **kwargs):
+        super().__init__(**kwargs)
+        self.sensor_config = SensorConfig()
+        # Pass sensor_config to discovery manager for filtering
+        self.discovery_manager = DiscoveryManager(sensor_config=self.sensor_config)
+        try:
+            tui_logger.info(
+                "TUI init: sensors_file=%s, configured=%d",
+                getattr(self.sensor_config, "config_file", None),
+                len(getattr(self.sensor_config, "sensors", {})),
+            )
+        except Exception:
+            pass
+
+    def compose(self) -> ComposeResult:
+        """Create child widgets for the app."""
+        yield Header()
+        with TabbedContent(initial="discovery"):
+            with TabPane("Discovery", id="discovery"):
+                yield DataTable(id="discovery-table", cursor_type="row")
+            with TabPane("Configured", id="configured"):
+                yield DataTable(id="configured-table", cursor_type="row")
+            with TabPane("Ignored", id="ignored"):
+                yield DataTable(id="ignored-table", cursor_type="row")
+            with TabPane("Settings", id="settings"):
+                yield DataTable(id="settings-table", cursor_type="row")
+            with TabPane("Dashboard", id="dashboard"):
+                with Horizontal(classes="dashboard-row"):
+                     yield Static("CPU Temp: ...", id="dash-cpu-temp", classes="dash-stat")
+                     yield Static("Load Avg: ...", id="dash-load", classes="dash-stat")
+                with Horizontal(classes="dashboard-row"):
+                     yield Static("Memory: ...", id="dash-memory", classes="dash-stat")
+                     yield Static("Disk: ...", id="dash-disk", classes="dash-stat")
+                with Horizontal(classes="dashboard-controls"):
+                     yield Button("Restart Service", id="btn-restart-service", variant="warning")
+                     yield Button("Stop Service", id="btn-stop-service", variant="error")
+        yield Footer()
+
+    def on_button_pressed(self, event: Button.Pressed) -> None:
+        """Handle button presses."""
+        if event.button.id == "btn-restart-service":
+            self.action_restart_service()
+        elif event.button.id == "btn-stop-service":
+            self.action_stop_service()
+
+    def action_restart_service(self) -> None:
+        """Restart the system service."""
+        import subprocess
+        try:
+            subprocess.run(["sudo", "systemctl", "restart", "sensorpajen"], check=False)
+            self.notify("Service restart triggered", severity="information")
+        except Exception as e:
+            self.notify(f"Failed to restart: {e}", severity="error")
+
+    def action_stop_service(self) -> None:
+        """Stop the system service."""
+        import subprocess
+        try:
+            subprocess.run(["sudo", "systemctl", "stop", "sensorpajen"], check=False)
+            self.notify("Service stop triggered", severity="warning")
+        except Exception as e:
+            self.notify(f"Failed to stop: {e}", severity="error")
+
+
+    def on_mount(self) -> None:
+        """Handle app mount event."""
+        self.refresh_data()
+
+    def _open_input_modal(
+        self,
+        title: str,
+        *,
+        initial_value: str = "",
+        placeholder: str = "",
+        on_result: Callable[[Optional[str]], None],
+    ) -> None:
+        """Open an input modal and handle the result via callback.
+
+        This avoids awaiting modal results inside action handlers, which can
+        freeze / deadlock depending on Textual version and context.
+        """
+        modal = InputModal(title, placeholder=placeholder, initial_value=initial_value)
+        self.push_screen(modal, on_result)
+
+    def _open_confirm_modal(
+        self,
+        title: str,
+        message: str,
+        *,
+        on_result: Callable[[bool], None],
+        confirm_label: str = "Yes",
+        cancel_label: str = "No",
+    ) -> None:
+        modal = ConfirmModal(
+            title,
+            message,
+            confirm_label=confirm_label,
+            cancel_label=cancel_label,
+        )
+        self.push_screen(modal, on_result)
+
+    def _open_details_modal(self, title: str, details_text: str) -> None:
+        modal = DetailsModal(title, details_text)
+        # No callback needed
+        self.push_screen(modal)
+
+    async def _save_sensor(self, mac: str, name: str, comment: Optional[str] = None) -> None:
+        await asyncio.to_thread(self.sensor_config.add_sensor, mac, name, comment)
+
+    async def _remove_sensor(self, mac: str) -> None:
+        await asyncio.to_thread(self.sensor_config.remove_sensor, mac)
+
+    def action_refresh(self) -> None:
+        """Refresh all tables."""
+        self.refresh_data()
+
+    async def action_approve(self) -> None:
+        """Approve the selected discovered sensor."""
+        if self.query_one(TabbedContent).active != "discovery":
+            return
+            
+        table = self.query_one("#discovery-table", DataTable)
+        if table.cursor_row is None:
+            return
+            
+        row = table.get_row_at(table.cursor_row)
+        mac = row[0]
+        default_name = row[1]
+
+        # Get a richer sensor object for metadata (best-effort)
+        sensor_obj = None
+        try:
+            for s in self.discovery_manager.get_pending():
+                if getattr(s, "mac", "").upper() == str(mac).upper():
+                    sensor_obj = s
+                    break
+        except Exception:
+            sensor_obj = None
+
+        default_comment = _format_metadata_comment(
+            str(mac),
+            getattr(sensor_obj, "name", default_name),
+            getattr(sensor_obj, "last_seen", "N/A"),
+            getattr(sensor_obj, "sample_reading", {}) or {},
+        )
+
+        def _on_result(result: object) -> None:
+            if result is None:
+                return
+
+            try:
+                name, comment = result  # type: ignore[misc]
+            except Exception:
+                self.notify("Invalid approve result", severity="error")
+                return
+
+            name_stripped = str(name).strip()
+            if not name_stripped:
+                self.notify("Sensor name cannot be empty", severity="error")
+                return
+
+            # Match legacy behavior: empty comment falls back to default metadata.
+            comment_stripped = str(comment).strip()
+            comment_to_use = comment_stripped if comment_stripped else default_comment
+
+            async def _do() -> None:
+                try:
+                    await self._save_sensor(str(mac), name_stripped, comment_to_use)
+                    self.discovery_manager.approve(str(mac))
+                    self.notify(f"Approved {mac} as {name_stripped}")
+                    self.refresh_data()
+                except Exception as e:
+                    self.notify(f"Error approving sensor: {e}", severity="error")
+
+            asyncio.create_task(_do())
+
+        self.push_screen(
+            EditSensorModal(title="Approve sensor", name=str(default_name), comment=default_comment),
+            _on_result,
+        )
+
+    async def action_ignore(self) -> None:
+        """Ignore the selected discovered sensor."""
+        if self.query_one(TabbedContent).active != "discovery":
+            return
+            
+        table = self.query_one("#discovery-table", DataTable)
+        if table.cursor_row is None:
+            return
+            
+        row = table.get_row_at(table.cursor_row)
+        mac = row[0]
+        
+        def _on_reason(reason: Optional[str]) -> None:
+            # Allow empty string but not None (Cancel)
+            if reason is None:
+                return
+            try:
+                self.discovery_manager.ignore(mac, reason if reason else None)
+                self.notify(f"Ignored {mac}")
+                self.refresh_data()
+            except Exception as e:
+                self.notify(f"Error ignoring sensor: {e}", severity="error")
+
+        self._open_input_modal("Enter ignore reason (optional)", on_result=_on_reason)
+
+    async def action_edit(self) -> None:
+        """Edit the selected item (sensor or setting)."""
+        active_tab = self.query_one(TabbedContent).active
+        
+        if active_tab == "configured":
+            table = self.query_one("#configured-table", DataTable)
+            if table.cursor_row is None:
+                return
+                
+            row = table.get_row_at(table.cursor_row)
+            mac = str(row[0]).upper()  # Ensure MAC is uppercase
+            current_name = str(row[1])
+            current_comment = self.sensor_config.get_comment(mac) or ""
+
+            try:
+                tui_logger.info(
+                    "Edit configured: mac=%s current_name=%r file=%s",
+                    mac,
+                    current_name,
+                    getattr(self.sensor_config, "config_file", None),
+                )
+            except Exception:
+                pass
+
+            current_name_stripped = current_name.strip()
+            current_comment_stripped = current_comment.strip()
+
+            def _on_result(result: object) -> None:
+                if result is None:
+                    try:
+                        tui_logger.info("Edit cancelled: mac=%s", mac)
+                    except Exception:
+                        pass
+                    return
+
+                try:
+                    new_name, new_comment = result  # type: ignore[misc]
+                except Exception:
+                    self.notify("Invalid edit result", severity="error")
+                    return
+
+                new_name = str(new_name).strip()
+                new_comment = str(new_comment).strip()
+
+                if not new_name:
+                    self.notify("Sensor name cannot be empty", severity="error")
+                    return
+
+                name_changed = new_name != current_name_stripped
+                comment_changed = new_comment != current_comment_stripped
+
+                if not name_changed and not comment_changed:
+                    try:
+                        tui_logger.info("Edit no-op: mac=%s name/comment unchanged", mac)
+                    except Exception:
+                        pass
+                    return
+
+                # Only touch comment if user changed it; empty string means clear.
+                comment_to_pass: Optional[str]
+                if comment_changed:
+                    comment_to_pass = new_comment
+                else:
+                    comment_to_pass = None
+
+                async def _do() -> None:
+                    try:
+                        await self._save_sensor(mac, new_name, comment_to_pass)
+                        stored_name = self.sensor_config.sensors.get(mac)
+                        try:
+                            tui_logger.info(
+                                "Edit result: mac=%s new_name=%r stored_name=%r new_comment=%r",
+                                mac,
+                                new_name,
+                                stored_name,
+                                comment_to_pass,
+                            )
+                        except Exception:
+                            pass
+                        self.notify(f"Updated {mac}")
+                        self.refresh_data()
+                    except Exception as e:
+                        try:
+                            tui_logger.exception("Error updating sensor: mac=%s", mac)
+                        except Exception:
+                            pass
+                        self.notify(f"Error updating sensor: {e}", severity="error")
+
+                asyncio.create_task(_do())
+
+            self.push_screen(
+                EditSensorModal(name=current_name, comment=current_comment),
+                _on_result,
+            )
+                
+        elif active_tab == "settings":
+            table = self.query_one("#settings-table", DataTable)
+            if table.cursor_row is None:
+                return
+            
+            row = table.get_row_at(table.cursor_row)
+            key = row[0]
+            current_value = row[1]
+            
+            def _on_value(new_value: Optional[str]) -> None:
+                if new_value is None:
+                    return
+                try:
+                    save_env_var(key, new_value)
+                    # Update current runtime env for display (won't take effect in backend until restart)
+                    import os
+                    os.environ[key] = new_value
+                    self.notify(
+                        f"Updated {key}. Restart service for changes to take effect!",
+                        severity="warning",
+                    )
+                    self.refresh_data()
+                except Exception as e:
+                    self.notify(f"Error saving setting: {e}", severity="error")
+
+            self._open_input_modal(f"Edit {key}", initial_value=str(current_value), on_result=_on_value)
+
+    def action_view_details(self) -> None:
+        """View details for the selected sensor (shows long comment in popup)."""
+        active_tab = self.query_one(TabbedContent).active
+        table_id = None
+
+        if active_tab == "configured":
+            table_id = "#configured-table"
+        elif active_tab == "discovery":
+            table_id = "#discovery-table"
+        elif active_tab == "ignored":
+            table_id = "#ignored-table"
+        else:
+            return
+
+        table = self.query_one(table_id, DataTable)
+        if table.cursor_row is None:
+            self.notify("Select a sensor first", severity="warning")
+            return
+
+        row = table.get_row_at(table.cursor_row)
+        mac = str(row[0]).upper()
+        name = str(row[1]) if len(row) > 1 else ""
+
+        comment = None
+        if active_tab == "configured":
+            comment = self.sensor_config.get_comment(mac)
+
+        details_lines = [
+            f"MAC: {mac}",
+            f"Name: {name}",
+        ]
+
+        if comment:
+            details_lines.extend(["", "Comment:", comment])
+        else:
+            details_lines.extend(["", "Comment:", "(none)"])
+
+        self._open_details_modal("Sensor details", "\n".join(details_lines))
+
+    def action_remove(self) -> None:
+        """Remove the selected configured sensor."""
+        if self.query_one(TabbedContent).active != "configured":
+            return
+            
+        table = self.query_one("#configured-table", DataTable)
+        if table.cursor_row is None:
+            return
+            
+        row = table.get_row_at(table.cursor_row)
+        mac = row[0]
+
+        def _on_confirm(confirmed: bool) -> None:
+            if not confirmed:
+                return
+
+            async def _do() -> None:
+                try:
+                    await self._remove_sensor(str(mac))
+
+                    # Also need to reset its status in DiscoveryManager to make it show up in Discovery again
+                    self.discovery_manager.unignore(str(mac))  # unignore sets status to 'pending'
+
+                    self.notify(f"Removed {mac}")
+                    self.refresh_data()
+                except Exception as e:
+                    self.notify(f"Error removing sensor: {e}", severity="error")
+
+            asyncio.create_task(_do())
+
+        self._open_confirm_modal(
+            "Remove sensor",
+            f"Remove {mac} from configured sensors?",
+            confirm_label="Remove",
+            cancel_label="Cancel",
+            on_result=_on_confirm,
+        )
+
+    def action_unignore(self) -> None:
+        """Unignore the selected sensor."""
+        if self.query_one(TabbedContent).active != "ignored":
+            return
+            
+        table = self.query_one("#ignored-table", DataTable)
+        if table.cursor_row is None:
+            return
+            
+        row = table.get_row_at(table.cursor_row)
+        mac = row[0]
+        
+        self.discovery_manager.unignore(mac)
+        self.notify(f"Unignored {mac}")
+        self.refresh_data()
+
+    def refresh_data(self) -> None:
+        """Load data from managers and update tables."""
+        try:
+            self._update_discovery_table()
+            self._update_configured_table()
+            self._update_ignored_table()
+            self._update_settings_table()
+            self._update_dashboard()
+        except Exception as e:
+            self.notify(f"Error refreshing data: {e}", severity="error")
+            import traceback
+            traceback.print_exc()
+
+    def _update_discovery_table(self) -> None:
+        table = self.query_one("#discovery-table", DataTable)
+        table.clear(columns=True)
+        table.add_columns("MAC", "Name", "RSSI", "Last Seen", "Count", "Temp", "Humidity")
+        
+        sensors = self.discovery_manager.get_pending()
+        for s in sensors:
+            table.add_row(
+                s.mac,
+                s.name,
+                str(s.rssi),
+                s.last_seen.split("T")[1].split(".")[0], # Just time
+                str(s.count),
+                f"{s.sample_reading.get('temperature', 0):.1f}°C",
+                f"{s.sample_reading.get('humidity', 0)}%"
+            )
+
+    def _update_configured_table(self) -> None:
+        table = self.query_one("#configured-table", DataTable)
+        table.clear(columns=True)
+        table.add_columns("MAC", "Name", "Temp", "Humidity", "Battery", "RSSI", "Last Seen")
+        
+        for mac, name in self.sensor_config.sensors.items():
+            sensor_data = self.discovery_manager.db.get_sensor(mac)
+            
+            temp = "N/A"
+            humidity = "N/A"
+            battery = "N/A"
+            rssi = "N/A"
+            last_seen = "N/A"
+            
+            if sensor_data:
+                # sensor_data is a Row/dict
+                if sensor_data['last_temp'] is not None:
+                    temp = f"{sensor_data['last_temp']:.1f}°C"
+                if sensor_data['last_humidity'] is not None:
+                    humidity = f"{sensor_data['last_humidity']}%"
+                if sensor_data['last_battery_percent'] is not None:
+                    battery = f"{sensor_data['last_battery_percent']}%"
+                if sensor_data['rssi'] is not None:
+                    rssi = str(sensor_data['rssi'])
+                if sensor_data['last_seen']:
+                    try:
+                        # Extract time only: 2025-12-27T14:30:00 -> 14:30:00
+                        last_seen = sensor_data['last_seen'].split("T")[1].split(".")[0]
+                    except IndexError:
+                         last_seen = sensor_data['last_seen']
+            
+            table.add_row(mac, name, temp, humidity, battery, rssi, last_seen)
+
+    def _update_ignored_table(self) -> None:
+        table = self.query_one("#ignored-table", DataTable)
+        table.clear(columns=True)
+        table.add_columns("MAC", "Name", "Ignored At", "Reason")
+        
+        sensors = self.discovery_manager.get_ignored()
+        for s in sensors:
+            table.add_row(
+                s.mac,
+                s.name,
+                s.ignored_at.split("T")[0] if s.ignored_at else "N/A",
+                s.ignore_reason or ""
+            )
+
+    def _update_settings_table(self) -> None:
+        import os
+        table = self.query_one("#settings-table", DataTable)
+        table.clear(columns=True)
+        table.add_columns("Key", "Value")
+        
+        # Relevant keys to show
+        relevant_prefixes = ["MQTT_", "WATCHDOG_", "ENABLE_BATTERY", "LOG_LEVEL", "NTFY_", "SKIP_IDENTICAL"]
+        
+        for key, value in sorted(os.environ.items()):
+            if any(key.startswith(p) for p in relevant_prefixes):
+                table.add_row(key, value)
+    
+    def _update_dashboard(self) -> None:
+        """Update dashboard statistics."""
+        try:
+            # CPU Temp
+            cpu_temp = "N/A"
+            try:
+                 with open("/sys/class/thermal/thermal_zone0/temp", "r") as f:
+                     temp_raw = int(f.read().strip())
+                     cpu_temp = f"{temp_raw / 1000.0:.1f}°C"
+            except:
+                 pass
+            self.query_one("#dash-cpu-temp", Static).update(f"CPU Temp\n{cpu_temp}")
+            
+            # Load Avg
+            import os
+            load_avg = os.getloadavg()
+            self.query_one("#dash-load", Static).update(f"Load Avg\n{load_avg[0]:.2f}, {load_avg[1]:.2f}, {load_avg[2]:.2f}")
+            
+            # Memory
+            mem_used_pct = "N/A"
+            try:
+                mem_info = {}
+                with open("/proc/meminfo", "r") as f:
+                    for line in f:
+                        parts = line.split(":")
+                        if len(parts) == 2:
+                            val = int(parts[1].strip().split()[0])
+                            mem_info[parts[0]] = val
+                
+                if "MemTotal" in mem_info and "MemAvailable" in mem_info:
+                    total = mem_info["MemTotal"]
+                    avail = mem_info["MemAvailable"]
+                    used = total - avail
+                    mem_used_pct = f"{(used / total) * 100:.1f}%"
+            except:
+                pass
+            self.query_one("#dash-memory", Static).update(f"Memory Used\n{mem_used_pct}")
+            
+            # Disk
+            import shutil
+            disk_used_pct = "N/A"
+            try:
+                total, used, free = shutil.disk_usage("/")
+                disk_used_pct = f"{(used / total) * 100:.1f}%"
+            except:
+                pass
+            self.query_one("#dash-disk", Static).update(f"Disk Usage\n{disk_used_pct}")
+            
+        except Exception as e:
+            # Don't crash TUI on stat failure
+            pass
+
+def main():
+    app = SensorpajenApp()
+    app.run()
+
+if __name__ == "__main__":
+    main()

src/sensorpajen/tui/modals.py

@@ -0,0 +1,142 @@
+from textual.app import ComposeResult
+from textual.screen import ModalScreen
+from textual.binding import Binding
+from textual.widgets import Input, Label, Button
+from textual.containers import Vertical, Horizontal, VerticalScroll
+from textual.widgets import Static
+
+class InputModal(ModalScreen[str]):
+    """A modal screen for text input."""
+    
+    def __init__(self, title: str, placeholder: str = "", initial_value: str = ""):
+        super().__init__()
+        self.title_text = title
+        self.placeholder = placeholder
+        self.initial_value = initial_value
+
+    def compose(self) -> ComposeResult:
+        with Vertical(id="modal-container"):
+            yield Label(self.title_text)
+            yield Input(placeholder=self.placeholder, value=self.initial_value, id="modal-input")
+            with Horizontal(id="modal-buttons"):
+                yield Button("OK", variant="primary", id="ok-btn")
+                yield Button("Cancel", variant="error", id="cancel-btn")
+
+    def on_mount(self) -> None:
+        self.query_one(Input).focus()
+
+    def on_button_pressed(self, event: Button.Pressed) -> None:
+        if event.button.id == "ok-btn":
+            self.dismiss(self.query_one(Input).value)
+        else:
+            self.dismiss(None)
+
+    def on_input_submitted(self, event: Input.Submitted) -> None:
+        self.dismiss(event.value)
+
+
+class ConfirmModal(ModalScreen[bool]):
+    """A modal screen for confirming an action."""
+
+    def __init__(
+        self,
+        title: str,
+        message: str,
+        *,
+        confirm_label: str = "Yes",
+        cancel_label: str = "No",
+    ):
+        super().__init__()
+        self.title_text = title
+        self.message_text = message
+        self.confirm_label = confirm_label
+        self.cancel_label = cancel_label
+
+    def compose(self) -> ComposeResult:
+        with Vertical(id="modal-container"):
+            yield Label(self.title_text)
+            yield Label(self.message_text)
+            with Horizontal(id="modal-buttons"):
+                yield Button(self.confirm_label, variant="warning", id="confirm-btn")
+                yield Button(self.cancel_label, variant="primary", id="cancel-btn")
+
+    def on_mount(self) -> None:
+        self.query_one("#cancel-btn", Button).focus()
+
+    def on_button_pressed(self, event: Button.Pressed) -> None:
+        if event.button.id == "confirm-btn":
+            self.dismiss(True)
+        else:
+            self.dismiss(False)
+
+
+class DetailsModal(ModalScreen[None]):
+    """A modal screen for showing potentially long details text."""
+
+    BINDINGS = [
+        Binding("escape", "close", show=False),
+    ]
+
+    def __init__(self, title: str, details_text: str):
+        super().__init__()
+        self.title_text = title
+        self.details_text = details_text
+
+    def compose(self) -> ComposeResult:
+        with Vertical(id="modal-container"):
+            yield Label(self.title_text)
+            with VerticalScroll():
+                yield Static(self.details_text)
+            with Horizontal(id="modal-buttons"):
+                yield Button("Close", variant="primary", id="close-btn")
+
+    def action_close(self) -> None:
+        self.dismiss(None)
+
+    def on_mount(self) -> None:
+        self.query_one("#close-btn", Button).focus()
+
+    def on_button_pressed(self, event: Button.Pressed) -> None:
+        self.dismiss(None)
+
+
+class EditSensorModal(ModalScreen):
+    """A modal screen for editing a sensor's name and comment."""
+
+    def __init__(self, *, title: str = "Edit sensor", name: str, comment: str):
+        super().__init__()
+        self.title_text = title
+        self.initial_name = name
+        self.initial_comment = comment
+
+    def compose(self) -> ComposeResult:
+        with Vertical(id="modal-container"):
+            yield Label(self.title_text)
+            yield Label("Name")
+            yield Input(value=self.initial_name, id="sensor-name-input")
+            yield Label("Comment")
+            yield Input(value=self.initial_comment, placeholder="Optional comment", id="sensor-comment-input")
+            with Horizontal(id="modal-buttons"):
+                yield Button("OK", variant="primary", id="ok-btn")
+                yield Button("Cancel", variant="error", id="cancel-btn")
+
+    def on_mount(self) -> None:
+        self.query_one("#sensor-name-input", Input).focus()
+
+    def _dismiss_with_values(self) -> None:
+        name = self.query_one("#sensor-name-input", Input).value
+        comment = self.query_one("#sensor-comment-input", Input).value
+        self.dismiss((name, comment))
+
+    def on_button_pressed(self, event: Button.Pressed) -> None:
+        if event.button.id == "ok-btn":
+            self._dismiss_with_values()
+        else:
+            self.dismiss(None)
+
+    def on_input_submitted(self, event: Input.Submitted) -> None:
+        # Enter on name moves to comment; Enter on comment submits.
+        if event.input.id == "sensor-name-input":
+            self.query_one("#sensor-comment-input", Input).focus()
+        else:
+            self._dismiss_with_values()

tests/conftest.py

@@ -0,0 +1,15 @@
+import os
+import sys
+from unittest.mock import MagicMock
+
+# Mock environment variables required by config.py
+os.environ["MQTT_HOST"] = "localhost"
+os.environ["MQTT_PORT"] = "1883"
+os.environ["MQTT_USER"] = "user"
+os.environ["MQTT_PASSWORD"] = "password"
+
+# Mock bluetooth package globally for all tests
+mock_bluetooth = MagicMock()
+mock_bluez = MagicMock()
+sys.modules["bluetooth"] = mock_bluetooth
+sys.modules["bluetooth._bluetooth"] = mock_bluez

tests/test_config.py

@@ -0,0 +1,98 @@
+import os
+import pytest
+from pathlib import Path
+from unittest.mock import patch, MagicMock
+import sensorpajen.config as config
+
+def test_config_defaults():
+    assert config.MQTT_HOST == "localhost"
+    assert config.MQTT_PORT == 1883
+    assert config.MQTT_USER == "user"
+    assert config.MQTT_PASSWORD == "password"
+    assert config.MQTT_CLIENT_ID == "sensorpajen"
+
+def test_sensor_config_load(tmp_path):
+    import sensorpajen.config as config
+    
+    config_file = tmp_path / "sensors.json"
+    sensors_data = {
+        "sensors": [
+            {"mac": "AA:BB:CC:DD:EE:FF", "name": "Living Room"},
+            {"mac": "11:22:33:44:55:66", "name": "Kitchen"}
+        ]
+    }
+    
+    import json
+    with open(config_file, "w") as f:
+        json.dump(sensors_data, f)
+        
+    sensor_cfg = config.SensorConfig(config_file=str(config_file))
+    assert sensor_cfg.sensors == {
+        "AA:BB:CC:DD:EE:FF": "Living Room",
+        "11:22:33:44:55:66": "Kitchen"
+    }
+    assert sensor_cfg.get_name("AA:BB:CC:DD:EE:FF") == "Living Room"
+    assert sensor_cfg.get_name("UNKNOWN") == "UNKNOWN"
+
+
+def test_sensor_config_comment_load_and_clear(tmp_path):
+    import json
+    import sensorpajen.config as config
+
+    config_file = tmp_path / "sensors.json"
+    config_file.write_text(
+        json.dumps(
+            {
+                "sensors": [
+                    {"mac": "AA:BB:CC:DD:EE:FF", "name": "Living Room", "comment": "hello"},
+                ]
+            },
+            indent=2,
+        )
+    )
+
+    sensor_cfg = config.SensorConfig(config_file=str(config_file))
+    assert sensor_cfg.get_comment("AA:BB:CC:DD:EE:FF") == "hello"
+
+    # Clear comment explicitly (empty string means remove comment key)
+    sensor_cfg.add_sensor("AA:BB:CC:DD:EE:FF", "Living Room", "")
+    assert sensor_cfg.get_comment("AA:BB:CC:DD:EE:FF") is None
+
+    saved = json.loads(config_file.read_text())
+    assert saved["sensors"][0]["mac"] == "AA:BB:CC:DD:EE:FF"
+    assert saved["sensors"][0]["name"] == "Living Room"
+    assert "comment" not in saved["sensors"][0]
+
+def test_sensor_config_add_remove(tmp_path):
+    import sensorpajen.config as config
+    config_file = tmp_path / "sensors.json"
+    # Start with empty
+    with open(config_file, "w") as f:
+        import json
+        json.dump({"sensors": []}, f)
+        
+    sensor_cfg = config.SensorConfig(config_file=str(config_file))
+    
+    # Add
+    sensor_cfg.add_sensor("AA:BB:CC:DD:EE:FF", "Living Room", "Test comment")
+    assert sensor_cfg.sensors["AA:BB:CC:DD:EE:FF"] == "Living Room"
+    assert sensor_cfg.get_comment("AA:BB:CC:DD:EE:FF") == "Test comment"
+    
+    # Verify persistence
+    sensor_cfg2 = config.SensorConfig(config_file=str(config_file))
+    assert sensor_cfg2.sensors["AA:BB:CC:DD:EE:FF"] == "Living Room"
+    assert sensor_cfg2.get_comment("AA:BB:CC:DD:EE:FF") == "Test comment"
+    
+    # Remove
+    sensor_cfg.remove_sensor("AA:BB:CC:DD:EE:FF")
+    assert "AA:BB:CC:DD:EE:FF" not in sensor_cfg.sensors
+    
+    # Verify persistence
+    sensor_cfg3 = config.SensorConfig(config_file=str(config_file))
+    assert "AA:BB:CC:DD:EE:FF" not in sensor_cfg3.sensors
+
+def test_sensor_config_missing_file(tmp_path):
+    import sensorpajen.config as config
+    config_file = tmp_path / "nonexistent.json"
+    sensor_cfg = config.SensorConfig(config_file=str(config_file))
+    assert sensor_cfg.sensors == {}

tests/test_db.py

@@ -0,0 +1,82 @@
+import pytest
+import sqlite3
+import os
+from pathlib import Path
+from sensorpajen.db import DatabaseManager
+
+@pytest.fixture
+def db_path(tmp_path):
+    return tmp_path / "test_sensors.db"
+
+@pytest.fixture
+def db_manager(db_path):
+    manager = DatabaseManager(str(db_path))
+    manager.initialize()
+    return manager
+
+def test_db_initialization(db_path):
+    manager = DatabaseManager(str(db_path))
+    manager.initialize()
+    assert db_path.exists()
+    
+    # Verify table exists
+    conn = sqlite3.connect(str(db_path))
+    cursor = conn.cursor()
+    cursor.execute("SELECT name FROM sqlite_master WHERE type='table' AND name='discovered_sensors'")
+    assert cursor.fetchone() is not None
+    conn.close()
+
+def test_add_or_update_sensor(db_manager):
+    mac = "AA:BB:CC:DD:EE:FF"
+    db_manager.add_or_update_sensor(
+        mac=mac,
+        name="ATC_123456",
+        rssi=-70,
+        temp=22.5,
+        humidity=45.0,
+        battery_percent=100,
+        battery_voltage=3000
+    )
+    
+    sensor = db_manager.get_sensor(mac)
+    assert sensor["mac"] == mac
+    assert sensor["name"] == "ATC_123456"
+    assert sensor["count"] == 1
+    assert sensor["status"] == "pending"
+    
+    # Update
+    db_manager.add_or_update_sensor(
+        mac=mac,
+        name="ATC_123456",
+        rssi=-60,
+        temp=23.0,
+        humidity=40.0,
+        battery_percent=99,
+        battery_voltage=2900
+    )
+    
+    sensor = db_manager.get_sensor(mac)
+    assert sensor["count"] == 2
+    assert sensor["rssi"] == -60
+    assert sensor["last_temp"] == 23.0
+
+def test_update_status(db_manager):
+    mac = "AA:BB:CC:DD:EE:FF"
+    db_manager.add_or_update_sensor(mac, "Test", -70, 20, 50, 100, 3000)
+    
+    db_manager.update_status(mac, "approved")
+    sensor = db_manager.get_sensor(mac)
+    assert sensor["status"] == "approved"
+
+def test_get_sensors_by_status(db_manager):
+    db_manager.add_or_update_sensor("MAC1", "S1", -70, 20, 50, 100, 3000)
+    db_manager.add_or_update_sensor("MAC2", "S2", -70, 20, 50, 100, 3000)
+    db_manager.update_status("MAC2", "ignored")
+    
+    pending = db_manager.get_sensors(status="pending")
+    assert len(pending) == 1
+    assert pending[0]["mac"] == "MAC1"
+    
+    ignored = db_manager.get_sensors(status="ignored")
+    assert len(ignored) == 1
+    assert ignored[0]["mac"] == "MAC2"

tests/test_discovery_manager.py

@@ -0,0 +1,154 @@
+import pytest
+import os
+from pathlib import Path
+from sensorpajen.discovery_manager import DiscoveryManager, DiscoveredSensor
+
+
+class _DummyCompletedProcess:
+    def __init__(self, returncode: int = 0, stderr: bytes = b""):
+        self.returncode = returncode
+        self.stderr = stderr
+
+def test_discovery_manager_init(tmp_path):
+    db_file = tmp_path / "sensors.db"
+    manager = DiscoveryManager(str(db_file))
+    assert db_file.exists()
+
+def test_discovery_manager_add_new(tmp_path):
+    db_file = tmp_path / "sensors.db"
+    manager = DiscoveryManager(str(db_file))
+    
+    mac = "AA:BB:CC:DD:EE:FF"
+    manager.add_or_update(mac, "ATC_123456", -70, 22.5, 45, 100, 3.0)
+    
+    pending = manager.get_pending()
+    assert len(pending) == 1
+    sensor = pending[0]
+    assert sensor.mac == mac
+    assert sensor.name == "ATC_123456"
+    assert sensor.sample_reading["temperature"] == 22.5
+    assert sensor.status == "pending"
+    assert sensor.count == 1
+
+def test_discovery_manager_update_existing(tmp_path):
+    db_file = tmp_path / "sensors.db"
+    manager = DiscoveryManager(str(db_file))
+    
+    mac = "AA:BB:CC:DD:EE:FF"
+    manager.add_or_update(mac, "ATC_123456", -70, 22.5, 45, 100, 3.0)
+    
+    # Update with new values
+    manager.add_or_update(mac, "ATC_123456", -60, 23.0, 40, 99, 2.9)
+    
+    pending = manager.get_pending()
+    assert len(pending) == 1
+    sensor = pending[0]
+    assert sensor.rssi == -60
+    assert sensor.sample_reading["temperature"] == 23.0
+    assert sensor.sample_reading["humidity"] == 40.0
+    assert sensor.count == 2
+
+def test_discovery_manager_persistence(tmp_path):
+    db_file = tmp_path / "sensors.db"
+    manager = DiscoveryManager(str(db_file))
+    
+    mac = "AA:BB:CC:DD:EE:FF"
+    manager.add_or_update(mac, "ATC_123456", -70, 22.5, 45, 100, 3.0)
+    
+    # Create new manager and load from same DB
+    manager2 = DiscoveryManager(str(db_file))
+    pending = manager2.get_pending()
+    assert len(pending) == 1
+    assert pending[0].mac == mac
+    assert pending[0].name == "ATC_123456"
+
+
+def test_send_ntfy_notification_disabled(monkeypatch, tmp_path):
+    from sensorpajen import discovery_manager as dm_mod
+
+    monkeypatch.setattr(dm_mod.config, "NTFY_ENABLED", False)
+    monkeypatch.setattr(dm_mod.config, "NTFY_TOKEN", "token")
+
+    called = {"run": False}
+
+    def _fake_run(*args, **kwargs):
+        called["run"] = True
+        return _DummyCompletedProcess(0)
+
+    monkeypatch.setattr(dm_mod.subprocess, "run", _fake_run)
+
+    manager = dm_mod.DiscoveryManager(str(tmp_path / "dummy.db"))
+    sensor = dm_mod.DiscoveredSensor(
+        mac="AA",
+        name="N",
+        rssi=-1,
+        first_seen="now",
+        last_seen="now",
+        sample_reading={"temperature": 1, "humidity": 2, "battery_percent": 3},
+    )
+
+    manager.send_ntfy_notification(sensor)
+    assert called["run"] is False
+
+
+def test_send_ntfy_notification_missing_token(monkeypatch, tmp_path):
+    from sensorpajen import discovery_manager as dm_mod
+
+    monkeypatch.setattr(dm_mod.config, "NTFY_ENABLED", True)
+    monkeypatch.setattr(dm_mod.config, "NTFY_TOKEN", "")
+
+    called = {"run": False}
+
+    def _fake_run(*args, **kwargs):
+        called["run"] = True
+        return _DummyCompletedProcess(0)
+
+    monkeypatch.setattr(dm_mod.subprocess, "run", _fake_run)
+
+    manager = dm_mod.DiscoveryManager(str(tmp_path / "dummy2.db"))
+    sensor = dm_mod.DiscoveredSensor(
+        mac="AA",
+        name="N",
+        rssi=-1,
+        first_seen="now",
+        last_seen="now",
+        sample_reading={"temperature": 1, "humidity": 2, "battery_percent": 3},
+    )
+
+    manager.send_ntfy_notification(sensor)
+    assert called["run"] is False
+
+
+def test_send_ntfy_notification_message_mentions_tui(monkeypatch, tmp_path):
+    from sensorpajen import discovery_manager as dm_mod
+
+    monkeypatch.setattr(dm_mod.config, "NTFY_ENABLED", True)
+    monkeypatch.setattr(dm_mod.config, "NTFY_TOKEN", "token")
+    monkeypatch.setattr(dm_mod.config, "NTFY_URL", "https://ntfy.sh")
+    monkeypatch.setattr(dm_mod.config, "NTFY_TOPIC", "sensorpajen")
+
+    captured = {"args": None}
+
+    def _fake_run(args, capture_output=True, timeout=10):
+        captured["args"] = args
+        return _DummyCompletedProcess(0)
+
+    monkeypatch.setattr(dm_mod.subprocess, "run", _fake_run)
+
+    manager = dm_mod.DiscoveryManager(str(tmp_path / "sensors.db"))
+    sensor = dm_mod.DiscoveredSensor(
+        mac="AA:BB",
+        name="ATC_123",
+        rssi=-1,
+        first_seen="2025-01-01T00:00:00",
+        last_seen="2025-01-01T00:00:00",
+        sample_reading={"temperature": 10, "humidity": 20, "battery_percent": 30},
+    )
+
+    manager.send_ntfy_notification(sensor)
+
+    assert captured["args"] is not None
+    # curl args: [..., "-d", message, url]
+    assert "-d" in captured["args"]
+    message = captured["args"][captured["args"].index("-d") + 1]
+    assert "sensorpajen-tui" in message

tests/test_mqtt_publisher.py

@@ -0,0 +1,76 @@
+import pytest
+from unittest.mock import MagicMock, patch, call
+from sensorpajen.mqtt_publisher import MQTTPublisher
+import sensorpajen.config as config
+
+@pytest.fixture
+def mock_config():
+    with patch("sensorpajen.config.MQTT_HOST", "localhost"), \
+         patch("sensorpajen.config.MQTT_PORT", 1883), \
+         patch("sensorpajen.config.MQTT_USER", "user"), \
+         patch("sensorpajen.config.MQTT_PASSWORD", "pass"), \
+         patch("sensorpajen.config.MQTT_CLIENT_ID", "test_client"), \
+         patch("sensorpajen.config.MQTT_TOPIC_PREFIX", "test"):
+        yield
+
+@pytest.fixture
+def mock_config():
+    with patch("sensorpajen.config.MQTT_HOST", "localhost"), \
+         patch("sensorpajen.config.MQTT_PORT", 1883), \
+         patch("sensorpajen.config.MQTT_USER", "user"), \
+         patch("sensorpajen.config.MQTT_PASSWORD", "pass"), \
+         patch("sensorpajen.config.MQTT_CLIENT_ID", "test_client"), \
+         patch("sensorpajen.config.MQTT_TOPIC_PREFIX", "test"):
+        yield
+
+def test_mqtt_publisher_init(mock_config):
+    with patch("paho.mqtt.client.Client") as mock_client:
+        publisher = MQTTPublisher()
+        mock_client.assert_called_once()
+        publisher.client.username_pw_set.assert_called_with("user", "pass")
+
+def test_mqtt_publisher_connect(mock_config):
+    with patch("paho.mqtt.client.Client") as mock_client:
+        publisher = MQTTPublisher()
+        publisher.connect()
+        publisher.client.connect.assert_called_with("localhost", 1883, keepalive=60)
+        publisher.client.loop_start.assert_called_once()
+
+def test_mqtt_publisher_publish(mock_config):
+    with patch("paho.mqtt.client.Client") as mock_client:
+        publisher = MQTTPublisher()
+        publisher.connected = True
+        
+        with patch("sensorpajen.config.ENABLE_BATTERY", True):
+            publisher.publish_measurement("living_room", 22.5, 45, 3.0, 100)
+            
+            # Check if publish was called for each metric
+            calls = [
+                call("test/living_room/temp", "22.5"),
+                call("test/living_room/humidity", "45"),
+                call("test/living_room/batteryvoltage", "3.000"),
+                call("test/living_room/batterylevel", "100")
+            ]
+            publisher.client.publish.assert_has_calls(calls, any_order=True)
+
+def test_mqtt_publisher_publish_no_battery(mock_config):
+    with patch("paho.mqtt.client.Client") as mock_client:
+        publisher = MQTTPublisher()
+        publisher.connected = True
+        
+        with patch("sensorpajen.config.ENABLE_BATTERY", False):
+            publisher.publish_measurement("living_room", 22.5, 45, 3.0, 100)
+            
+            # Should only publish temp and humidity
+            assert publisher.client.publish.call_count == 2
+            publisher.client.publish.assert_any_call("test/living_room/temp", "22.5")
+            publisher.client.publish.assert_any_call("test/living_room/humidity", "45")
+
+def test_mqtt_publisher_not_connected(mock_config):
+    with patch("paho.mqtt.client.Client") as mock_client:
+        publisher = MQTTPublisher()
+        publisher.connected = False
+        
+        # Should not raise error, just log warning
+        publisher.publish_measurement("living_room", 22.5, 45)
+        publisher.client.publish.assert_not_called()

tests/test_sensor_reader.py

@@ -0,0 +1,98 @@
+import pytest
+from unittest.mock import MagicMock, patch, call
+import os
+import sys
+import time
+
+from sensorpajen.sensor_reader import SensorReader, Measurement
+from sensorpajen import config
+
+@pytest.fixture
+def mock_sensor_config():
+    cfg = MagicMock(spec=config.SensorConfig)
+    cfg.sensors = {"AA:BB:CC:DD:EE:FF": "Living Room"}
+    cfg.get_name.side_effect = lambda mac: cfg.sensors.get(mac.upper(), mac.upper())
+    return cfg
+
+@pytest.fixture
+def mock_discovery_manager():
+    return MagicMock()
+
+def test_measurement_dataclass():
+    m = Measurement(temperature=22.5, humidity=45, voltage=3.0, battery=100, sensor_name="Test")
+    assert m.temperature == 22.5
+    assert m.humidity == 45
+    assert m.voltage == 3.0
+    assert m.battery == 100
+    assert m.sensor_name == "Test"
+
+def test_sensor_reader_init(mock_sensor_config, mock_discovery_manager):
+    on_measurement = MagicMock()
+    reader = SensorReader(mock_sensor_config, mock_discovery_manager, on_measurement)
+    assert reader.sensor_config == mock_sensor_config
+    assert reader.on_measurement == on_measurement
+    assert reader.interface == 0
+
+@patch("sensorpajen.sensor_reader.toggle_device")
+@patch("sensorpajen.sensor_reader.enable_le_scan")
+@patch("sensorpajen.sensor_reader.parse_le_advertising_events")
+def test_sensor_reader_start(mock_parse, mock_enable, mock_toggle, mock_sensor_config, mock_discovery_manager):
+    on_measurement = MagicMock()
+    reader = SensorReader(mock_sensor_config, mock_discovery_manager, on_measurement)
+    
+    # Mock bluez.hci_open_dev where it's used in sensor_reader
+    with patch("sensorpajen.sensor_reader.bluez.hci_open_dev", return_value=123):
+        # We need to stop the blocking call to parse_le_advertising_events
+        mock_parse.side_effect = KeyboardInterrupt()
+        
+        reader.start()
+        
+        mock_toggle.assert_called_with(0, True)
+        mock_enable.assert_called_with(123, filter_duplicates=False)
+        mock_parse.assert_called_once()
+
+@patch("sensorpajen.sensor_reader.raw_packet_to_str")
+def test_handle_ble_packet_known_sensor(mock_raw_to_str, mock_sensor_config, mock_discovery_manager):
+    on_measurement = MagicMock()
+    reader = SensorReader(mock_sensor_config, mock_discovery_manager, on_measurement)
+    
+    # Mock data
+    mac = "AA:BB:CC:DD:EE:FF"
+    data = b"\x00" * 20
+    # ATC packet format: ... 1A18 AABBCCDDEEFF ...
+    # data_str[6:10] == "1A18"
+    # data_str[10:22] == "AABBCCDDEEFF"
+    mock_raw_to_str.return_value = "0000001A18AABBCCDDEEFF000000000000"
+    
+    # Mock _parse_atc_data
+    with patch.object(reader, "_parse_atc_data") as mock_parse_atc:
+        mock_parse_atc.return_value = (22.5, 45, 100, 3.0, "123")
+        
+        reader._handle_ble_packet(mac, 0, data, -70)
+        
+        on_measurement.assert_called_once()
+        measurement = on_measurement.call_args[0][0]
+        assert measurement.temperature == 22.5
+        assert measurement.humidity == 45
+        assert measurement.sensor_name == "Living Room"
+
+@patch("sensorpajen.sensor_reader.raw_packet_to_str")
+def test_handle_ble_packet_unknown_sensor(mock_raw_to_str, mock_sensor_config, mock_discovery_manager):
+    on_measurement = MagicMock()
+    reader = SensorReader(mock_sensor_config, mock_discovery_manager, on_measurement)
+    
+    # Mock data for unknown sensor
+    mac = "11:22:33:44:55:66"
+    data = b"\x00" * 20
+    mock_raw_to_str.return_value = "0000001A18112233445566000000000000"
+    
+    with patch.object(reader, "_parse_atc_data") as mock_parse_atc:
+        mock_parse_atc.return_value = (20.0, 50, 80, 2.8, "456")
+        
+        with patch.object(reader, "_handle_unknown_sensor") as mock_handle_unknown:
+            reader._handle_ble_packet(mac, 0, data, -80)
+            
+            mock_handle_unknown.assert_called_once_with(
+                "11:22:33:44:55:66", -80, 20.0, 50, 80, 2.8
+            )
+            on_measurement.assert_not_called()

tests/test_tui.py

@@ -0,0 +1,225 @@
+import pytest
+import tempfile
+import json
+import sqlite3
+from pathlib import Path
+from datetime import datetime
+from sensorpajen.config import SensorConfig
+from sensorpajen.discovery_manager import DiscoveryManager
+
+def test_tui_sensor_config_edit():
+    """Integration test: Test that editing a sensor works end-to-end"""
+    with tempfile.TemporaryDirectory() as tmpdir:
+        config_file = Path(tmpdir) / "sensors.json"
+        db_file = Path(tmpdir) / "test.db"
+        
+        # Create initial config
+        initial_data = {
+            "sensors": [
+                {"mac": "AA:BB:CC:DD:EE:FF", "name": "Living Room Sensor"}
+            ]
+        }
+        config_file.write_text(json.dumps(initial_data, indent=2))
+        
+        # Initialize database
+        conn = sqlite3.connect(str(db_file))
+        cursor = conn.cursor()
+        cursor.execute("""
+            CREATE TABLE IF NOT EXISTS discovered_sensors (
+                mac TEXT PRIMARY KEY,
+                name TEXT,
+                rssi INTEGER,
+                first_seen TIMESTAMP,
+                last_seen TIMESTAMP,
+                count INTEGER DEFAULT 0,
+                last_temp REAL,
+                last_humidity REAL,
+                last_battery_percent INTEGER,
+                last_battery_voltage INTEGER,
+                status TEXT DEFAULT 'pending',
+                reviewed BOOLEAN DEFAULT 0,
+                ignored_at TIMESTAMP,
+                ignore_reason TEXT
+            )
+        """)
+        
+        now = datetime.now().isoformat()
+        cursor.execute("""
+            INSERT INTO discovered_sensors 
+            (mac, name, rssi, first_seen, last_seen, count, last_temp, last_humidity, 
+             last_battery_percent, last_battery_voltage, status, reviewed)
+            VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, 'approved', 1)
+        """, ("AA:BB:CC:DD:EE:FF", "Living Room Sensor", -65, now, now, 50, 23.5, 55, 85, 2950))
+        conn.commit()
+        conn.close()
+        
+        # Load config and discovery manager (simulating TUI)
+        config = SensorConfig(str(config_file))
+        dm = DiscoveryManager(str(db_file), config)
+        
+        # Verify initial state
+        assert config.sensors["AA:BB:CC:DD:EE:FF"] == "Living Room Sensor"
+        
+        # Edit sensor (simulate user action in TUI)
+        config.add_sensor("AA:BB:CC:DD:EE:FF", "Bedroom Sensor")
+        
+        # Verify in-memory update
+        assert config.sensors["AA:BB:CC:DD:EE:FF"] == "Bedroom Sensor"
+        
+        # Verify disk update
+        saved_data = json.loads(config_file.read_text())
+        assert saved_data["sensors"][0]["name"] == "Bedroom Sensor"
+        
+        # Simulate refresh_data() - create new config instance and verify
+        config2 = SensorConfig(str(config_file))
+        assert config2.sensors["AA:BB:CC:DD:EE:FF"] == "Bedroom Sensor"
+
+def test_sensor_config_edit_updates_memory():
+    """Test that editing a sensor updates both disk and memory"""
+    with tempfile.TemporaryDirectory() as tmpdir:
+        config_file = Path(tmpdir) / "sensors.json"
+        
+        # Create initial config
+        initial_data = {
+            "sensors": [
+                {"mac": "AA:BB:CC:DD:EE:FF", "name": "Original Name"}
+            ]
+        }
+        config_file.write_text(json.dumps(initial_data, indent=2))
+        
+        # Load config
+        config = SensorConfig(str(config_file))
+        assert config.sensors["AA:BB:CC:DD:EE:FF"] == "Original Name"
+        
+        # Edit sensor
+        config.add_sensor("AA:BB:CC:DD:EE:FF", "Updated Name")
+        
+        # Check in-memory is updated
+        assert config.sensors["AA:BB:CC:DD:EE:FF"] == "Updated Name"
+        
+        # Check disk is updated
+        saved_data = json.loads(config_file.read_text())
+        assert saved_data["sensors"][0]["name"] == "Updated Name"
+        
+        # Reload from disk and verify
+        config2 = SensorConfig(str(config_file))
+        assert config2.sensors["AA:BB:CC:DD:EE:FF"] == "Updated Name"
+
+def test_sensor_config_remove_sensor():
+    """Test that removing a sensor works correctly"""
+    with tempfile.TemporaryDirectory() as tmpdir:
+        config_file = Path(tmpdir) / "sensors.json"
+        
+        # Create config with multiple sensors
+        initial_data = {
+            "sensors": [
+                {"mac": "AA:BB:CC:DD:EE:FF", "name": "Sensor 1"},
+                {"mac": "AA:BB:CC:DD:EE:11", "name": "Sensor 2"}
+            ]
+        }
+        config_file.write_text(json.dumps(initial_data, indent=2))
+        
+        # Load and verify
+        config = SensorConfig(str(config_file))
+        assert len(config.sensors) == 2
+        
+        # Remove one sensor
+        config.remove_sensor("AA:BB:CC:DD:EE:FF")
+        
+        # Check in-memory removal
+        assert "AA:BB:CC:DD:EE:FF" not in config.sensors
+        assert "AA:BB:CC:DD:EE:11" in config.sensors
+        
+        # Check disk update
+        saved_data = json.loads(config_file.read_text())
+        assert len(saved_data["sensors"]) == 1
+        assert saved_data["sensors"][0]["mac"] == "AA:BB:CC:DD:EE:11"
+
+def test_sensor_config_reload():
+    """Test that reload() re-reads from disk"""
+    with tempfile.TemporaryDirectory() as tmpdir:
+        config_file = Path(tmpdir) / "sensors.json"
+        
+        # Create initial config
+        initial_data = {
+            "sensors": [
+                {"mac": "AA:BB:CC:DD:EE:FF", "name": "Original Name"}
+            ]
+        }
+        config_file.write_text(json.dumps(initial_data, indent=2))
+        
+        # Load config
+        config = SensorConfig(str(config_file))
+        assert config.sensors["AA:BB:CC:DD:EE:FF"] == "Original Name"
+        
+        # Manually modify file on disk
+        new_data = {
+            "sensors": [
+                {"mac": "AA:BB:CC:DD:EE:FF", "name": "Externally Modified"}
+            ]
+        }
+        config_file.write_text(json.dumps(new_data, indent=2))
+        
+        # Reload should pick up the changes
+        config.load()
+        assert config.sensors["AA:BB:CC:DD:EE:FF"] == "Externally Modified"
+
+def test_discovery_manager_approve_sensor():
+    """Test that approving a sensor works correctly"""
+    with tempfile.TemporaryDirectory() as tmpdir:
+        config_file = Path(tmpdir) / "sensors.json"
+        db_file = Path(tmpdir) / "test.db"
+        
+        # Create empty config
+        config_file.write_text(json.dumps({"sensors": []}, indent=2))
+        
+        # Initialize database with pending sensor
+        conn = sqlite3.connect(str(db_file))
+        cursor = conn.cursor()
+        cursor.execute("""
+            CREATE TABLE IF NOT EXISTS discovered_sensors (
+                mac TEXT PRIMARY KEY,
+                name TEXT,
+                rssi INTEGER,
+                first_seen TIMESTAMP,
+                last_seen TIMESTAMP,
+                count INTEGER DEFAULT 0,
+                last_temp REAL,
+                last_humidity REAL,
+                last_battery_percent INTEGER,
+                last_battery_voltage INTEGER,
+                status TEXT DEFAULT 'pending',
+                reviewed BOOLEAN DEFAULT 0,
+                ignored_at TIMESTAMP,
+                ignore_reason TEXT
+            )
+        """)
+        
+        now = datetime.now().isoformat()
+        cursor.execute("""
+            INSERT INTO discovered_sensors 
+            (mac, name, rssi, first_seen, last_seen, count, status)
+            VALUES (?, ?, ?, ?, ?, ?, ?)
+        """, ("AA:BB:CC:DD:EE:33", "Unknown Sensor", -80, now, now, 1, "pending"))
+        conn.commit()
+        conn.close()
+        
+        # Load config and DM
+        config = SensorConfig(str(config_file))
+        dm = DiscoveryManager(str(db_file), config)
+        
+        # Verify sensor is pending
+        pending = dm.get_pending()
+        assert len(pending) == 1
+        assert pending[0].mac == "AA:BB:CC:DD:EE:33"
+        
+        # Approve and add to config (simulate TUI action)
+        config.add_sensor("AA:BB:CC:DD:EE:33", "Kitchen Sensor")
+        dm.approve("AA:BB:CC:DD:EE:33")
+        
+        # Verify sensor is no longer pending (filtered by config)
+        pending = dm.get_pending()
+        assert len(pending) == 0
+        
+        # Verify it's in config
+        assert config.sensors["AA:BB:CC:DD:EE:33"] == "Kitchen Sensor"