from PIL import Image
import ST7789 as ST7789
import RPi.GPIO as GPIO
#import urllib3
import requests
import io
import time

# My music server URL
url = "http://192.168.0.114:6680/mopidy/rpc"

# Define the display
disp = ST7789.ST7789(
    port=0,
    cs=ST7789.BG_SPI_CS_FRONT,
    dc=9,
    backlight=13, 
    spi_speed_hz=80 * 1000 * 1000,
)


# First request fetches the current track info 
js1 = { "method": "core.playback.get_current_track", "jsonrpc": "2.0", "params": {}, "id": 1 }
js2 = requests.post(url, json=js1)
uri = js2.json()['result']['uri']

# Second request gets the url for the cover image
js3 = {  "method": "core.library.get_images", "jsonrpc": "2.0", "params": { "uris": [uri] },  "id": 1}
js4 = requests.post(url, json=js3)
cover = list(js4.json()['result'].values())[0][0]['uri']

WIDTH = disp.width
HEIGHT = disp.height

# Initialize display.
disp.begin()

# Setup to be able to change backlight
GPIO.setmode(GPIO.BCM)
GPIO.setup(13, GPIO.OUT)
backlight = GPIO.PWM(13, 500)
# Set max backlight
backlight.start(100)

# Load an image.
#print('Loading image: {}...'.format(image_file))
#image = Image.open(image_file)
image = Image.open(requests.get(cover, stream=True).raw)

# Resize the image
image = image.resize((WIDTH, HEIGHT))

# Draw the image on the display hardware.
print('Drawing image')

disp.display(image)
time.sleep(120)
backlight.ChangeDutyCycle(1)