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import sys
import board
import neopixel
from Adafruit_IO import MQTTClient

# Your Adafruit IO credentials
ADAFRUIT_IO_KEY = 'aio_mSNC806Ei13CaL1NjVlk3uuCCo9t'
ADAFRUIT_IO_USERNAME = 'cytron'
FEED_KEY = 'control-neopixel'  # Renamed feed key for clarity

# ----------------------
# NeoPixel Setup Section
# ----------------------
# Choose the GPIO pin that is connected to the NeoPixel's data input.
# GPIO18 is commonly used since it supports PWM.
pixel_pin = board.D18  # Adjust if you use a different pin

# Number of NeoPixel LEDs you have (change if more than one LED)
num_pixels = 1

# Pixel color channel order (often GRB for NeoPixels)
ORDER = neopixel.GRB

# Initialize the NeoPixel object:
pixels = neopixel.NeoPixel(pixel_pin, num_pixels, brightness=0.2, auto_write=False, pixel_order=ORDER)

# ----------------------
# MQTT Callback Functions
# ----------------------
def on_connect(client):
    print(f"Connected to Adafruit IO, subscribing to {FEED_KEY}")
    client.subscribe(FEED_KEY)

def on_disconnect(client):
    print("Disconnected from Adafruit IO.")
    sys.exit(1)

def on_message(client, feed_id, payload):
    print(f"Feed {feed_id} received new value: {payload}")
    
    # Turn the NeoPixel on (set to white) or off based on the payload:
    if payload.lower() == "on":
        # Set the NeoPixel to white; change the tuple to your desired color.
        pixels[0] = (255, 255, 255)
        pixels.show()  # Update the LED with the new color
        print("NeoPixel turned ON")
    elif payload.lower() == "off":
        # Turn off the NeoPixel by setting its color to black.
        pixels[0] = (0, 0, 0)
        pixels.show()  # Update the LED with the new state
        print("NeoPixel turned OFF")
    else:
        print("Unknown command received.")

# ----------------------
# MQTT Client Setup
# ----------------------
client = MQTTClient(ADAFRUIT_IO_USERNAME, ADAFRUIT_IO_KEY)
client.on_connect = on_connect
client.on_disconnect = on_disconnect
client.on_message = on_message

# ----------------------
# Start the MQTT Client Loop
# ----------------------
try:
    client.connect()
    client.loop_blocking()
except Exception as e:
    print(f"Error: {e}")