from machine import Pin, ADC
import time

# -------- INPUTS --------
pot = ADC(Pin(34))       # Environment
pot.atten(ADC.ATTN_11DB)

ldr = ADC(Pin(35))       # Energy
ldr.atten(ADC.ATTN_11DB)

pir = Pin(13, Pin.IN)    # Security

# -------- OUTPUTS --------
alert_led = Pin(2, Pin.OUT)     # Red LED
cooling_led = Pin(18, Pin.OUT)  # Blue LED
buzzer = Pin(4, Pin.OUT)

# -------- LOOP --------
while True:

    # ===== ENVIRONMENT =====
    value = pot.read()
    temp = (value / 4095) * 50
    hum = 20 + (value / 4095) * 80
    pm25 = (value / 4095) * 200

    # ===== ENERGY =====
    energy = ldr.read()

    # ===== SECURITY =====
    intrusion = pir.value()

    # ===== PRINT DATA =====
    print("\n--- SENSOR DATA ---")
    print("Temperature:", round(temp, 2), "°C")
    print("Humidity:", round(hum, 2), "%")
    print("PM2.5:", round(pm25, 2))
    print("Energy:", energy)
    print("Intrusion:", intrusion)

    # ===== ALERT SYSTEM =====
    alert_triggered = False

    # 🌡️ Temperature
    if temp > 30:
        print("🔥 High Temperature!")
        cooling_led.on()
        alert_led.on()
        buzzer.on()
        alert_triggered = True

    # 💧 Humidity / 🌫️ Air quality
    if hum > 70 or pm25 > 100:
        print("🌬️ Ventilation Activated!")
        cooling_led.on()
        alert_led.on()
        alert_triggered = True

    # ⚡ Energy
    if energy > 3000:
        print("⚡ High Energy Usage!")
        alert_led.on()
        alert_triggered = True

    # 🔐 Security
    if intrusion == 1:
        print("🚨 Intrusion Detected!")
        buzzer.on()
        alert_triggered = True

    # ✅ No alerts
    if not alert_triggered:
        print("✅ All conditions normal")
        cooling_led.off()
        alert_led.off()
        buzzer.off()

    print("----------------------")

    time.sleep(1)