import machine
from machine import Pin, I2C, PWM
import dht
import time
from i2c_lcd import I2cLcd
import network
import urequests
import json

# Konfigurasi WiFi
WIFI_SSID = "Wokwi-GUEST"
WIFI_PASSWORD = ""

# Konfigurasi Bot Telegram
BOT_TOKEN = "8027026546:AAHBWELBKIBbGho8OZQXd2NL92NWopQ6dSw"
CHAT_ID = 1326019983

# Setup WiFi
def connect_wifi():
    wifi = network.WLAN(network.STA_IF)
    wifi.active(True)
    if not wifi.isconnected():
        print('Menghubungkan ke WiFi...')
        wifi.connect(WIFI_SSID, WIFI_PASSWORD)
        while not wifi.isconnected():
            pass
    print('Terhubung ke WiFi')
    print('IP Address:', wifi.ifconfig()[0])

# Fungsi untuk mengirim pesan ke Telegram
def send_telegram_message(message):
    try:
        url = f"https://api.telegram.org/bot{BOT_TOKEN}/sendMessage"  # Menggunakan BOT_TOKEN dari variabel
        headers = {'Content-Type': 'application/json'}
        data = {
            "chat_id": CHAT_ID,
            "text": message,
            "parse_mode": "HTML"  # Tambahkan support untuk formatting HTML
        }
        
        print(f"Mengirim pesan ke Telegram: {message}")  # Debug print
        response = urequests.post(url, headers=headers, data=json.dumps(data))
        
        print(f"Status respon Telegram: {response.status_code}")  # Debug print
        print(f"Respon Telegram: {response.text}")  # Debug print
        
        response.close()
        return True
    except Exception as e:
        print(f"Error saat mengirim pesan Telegram: {str(e)}")
        return False

# Setup I2C dan LCD
i2c = I2C(scl=Pin(19), sda=Pin(21), freq=400000)
lcd = I2cLcd(i2c, I2cLcd.LCD_I2C_ADDR, 4, 20)

# Setup alarm dan sensor
alarm_pin = machine.Pin(15, machine.Pin.OUT)
sensor = dht.DHT22(Pin(13))

# Setup servo dengan frekuensi 50Hz
servo = PWM(Pin(17), freq=50)

def set_servo_angle(angle):
    min_duty = 20
    max_duty = 120
    duty = int(((max_duty - min_duty) * angle / 180) + min_duty)
    servo.duty(duty)

# Hubungkan ke WiFi saat startup
connect_wifi()

# Inisialisasi status api dan posisi awal servo
fire_detected = False
current_angle = 90  # Posisi awal 90 derajat (kondisi normal)
set_servo_angle(current_angle)  # Set posisi awal servo

# Variable untuk tracking waktu notifikasi terakhir
last_notification_time = 0
NOTIFICATION_INTERVAL = 2  # Interval minimal antar notifikasi (dalam detik)

while True:
    try:
        current_time = time.time()
        sensor.measure()
        temp = sensor.temperature()
        humi = sensor.humidity()

        # Menampilkan data suhu dan kelembapan pada LCD
        lcd.clear()
        lcd.move_to(0, 0)
        lcd.putstr("Temp: {:.1f}C".format(temp))
        
        lcd.move_to(0, 1)
        lcd.putstr("Humidity: {:.1f}%".format(humi))
        
        # Kondisi deteksi api
        if temp >= 60 or humi <= 20:
            if not fire_detected:  # Status baru berubah menjadi terdeteksi api
                fire_detected = True
                alarm_pin.value(1)
                set_servo_angle(180)
                current_angle = 180
                
                # Kirim notifikasi ke Telegram
                if current_time - last_notification_time >= NOTIFICATION_INTERVAL:
                    message = f"⚠️ PERINGATAN KEBAKARAN! ⚠️\nSuhu: {temp:.1f}°C\nKelembaban: {humi:.1f}%\nLokasi: Ruang Server"
                    send_telegram_message(message)
                    last_notification_time = current_time
                
            lcd.move_to(0, 2)
            lcd.putstr("Status: Fire!")
            
        else:
            if fire_detected:  # Status baru berubah menjadi normal
                fire_detected = False
                alarm_pin.value(0)
                set_servo_angle(90)
                current_angle = 90
                
                # Kirim notifikasi kondisi aman ke Telegram
                if current_time - last_notification_time >= NOTIFICATION_INTERVAL:
                    message = f"✅ Kondisi Kembali Normal\nSuhu: {temp:.1f}°C\nKelembaban: {humi:.1f}%\nLokasi: Ruang Server"
                    send_telegram_message(message)
                    last_notification_time = current_time
                
            lcd.move_to(0, 2)
            lcd.putstr("Status: Normal")
        
        time.sleep(1)
        
    except Exception as e:
        print("Error:", e)
        time.sleep(2)
        continue