import machine
import time
import dht

# Initialize DHT11 sensor on GPIO15
dht11_sensor = dht.DHT11(machine.Pin(15))

# Initialize LDR on ADC pin GP26 (A0)
ldr = machine.ADC(machine.Pin(26))  # GPIO 26 is the ADC pin A0 on Pico

# Define calibrated baseline and thresholds for raw meat/fish
BASELINE_LDR = 800          # Calibrated baseline for fresh meat/fish
HUMIDITY_THRESHOLD = 80     # %RH for spoilage risk
TEMPERATURE_THRESHOLD = 25  # Celsius for spoilage risk

while True:
    try:
        temperature =int(input("Temperature:"))   # Temperature in Celsius
        humidity =int(input("Humidity:"))  # Humidity in percentage

        # LDR Reading
        ldr_value =int(input("Ldr value:"))   # Higher resolution reading

        # Print sensor readings
        print(f"Temperature: {temperature}°C")
        print(f"Humidity: {humidity}%")
        print(f"LDR Value: {ldr_value}")

        # Spoilage Detection Logic
        warnings = []
        if humidity > HUMIDITY_THRESHOLD:
            print("Warning: High Humidity Detected (Spoilage Risk)")
        if temperature > TEMPERATURE_THRESHOLD:
            print("Warning: High Temperature Detected (Spoilage Risk)")
        if ldr_value < (BASELINE_LDR - 100):  # Reduced reflectivity due to spoilage
            print("Warning: Light Intensity Drop Detected (Possible Spoilage)")
        # Print warnings
        if warnings:
            print("Warnings:")
            for warning in warnings:
                print(f"- {warning}")
        else:
            print("No spoilage detected.")
        # Wait for a second before the next reading
        time.sleep(1)

    except Exception as e:
        print(f"Error: {e}")