#!/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/compat"
    "debian/sensorpajen.service"
    "src/sensorpajen/main.py"
    "pyproject.toml"
)

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

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
echo "Building Debian package..."
echo "======================================================================"
dpkg-buildpackage -us -uc -b

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 "$DEB_FILE" | head -20
TOTAL_FILES=$(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