from machine import Pin, ADC, I2C, PWM
from time import sleep
import dht
from lcd_api import LcdApi
from i2c_lcd import I2cLcd
from utime import localtime

# --- Konfigurasi I2C LCD ---
i2c_lcd = I2C(0, scl=Pin(17), sda=Pin(16), freq=400000)
lcd_addr = i2c_lcd.scan()[0]
lcd = I2cLcd(i2c_lcd, lcd_addr, 2, 16)

# --- Sensor ---
ldr = ADC(2)  # GPIO28
dht22 = dht.DHT22(Pin(19))

# --- LED ---
leds = [Pin(6, Pin.OUT), Pin(7, Pin.OUT), Pin(11, Pin.OUT), Pin(12, Pin.OUT)]

# --- Servo ---
servo = PWM(Pin(18))
servo.freq(50)

def servo_angle(angle):
    duty = int(1638 + (angle / 180) * 819)
    servo.duty_u16(duty)

# --- Ambil waktu dari sistem lokal ---
def get_hour():
    t = localtime()
    return t[3], t[4], t[5]  # hour, minute, second

# --- Konversi nilai ADC LDR ke µmol m⁻²s⁻¹ (simulasi) ---
def ldr_to_umol(adc_val):
    return int((65535 - adc_val) / 65535 * 400)

# --- Program utama ---
while True:
    try:
        hour, minute, second = get_hour()

        # Program aktif hanya antara jam 07:00 - 15:00
        if 7 <= hour < 15:
            ldr_value = ldr.read_u16()
            intensitas = ldr_to_umol(ldr_value)

            # Kontrol LED berdasarkan intensitas
            if intensitas > 350:
                for led in leds:
                    led.off()
            elif 300 <= intensitas <= 350:
                leds[0].on()
                for i in range(1, 4):
                    leds[i].off()
            elif 200 <= intensitas <= 299:
                for i in range(3):
                    leds[i].on()
                leds[3].off()
            elif 100 <= intensitas <= 199:
                for led in leds:
                    led.on()
            else:
                for led in leds:
                    led.on()  # Terlalu gelap, semua nyala

            # Baca sensor suhu dan kelembaban
            dht22.measure()
            temp = dht22.temperature()
            hum = dht22.humidity()

            # Kontrol servo jika kondisi suhu/kelembaban tidak ideal
            if 33 <= temp <= 36 and 50 <= hum <= 60:
                servo_angle(0)  # Servo tertutup
            else:
                servo_angle(90)  # Servo terbuka

            # Tampilkan informasi di LCD
            lcd.clear()
            lcd.putstr("T:{}C H:{}%\n".format(temp, hum))
            lcd.putstr("{:02d}:{:02d}:{:02d}".format(hour, minute, second))

        else:
            # Di luar jam kerja
            for led in leds:
                led.off()
            servo_angle(0)  # Servo ditutup
            lcd.clear()
            lcd.putstr("OFF - Luar jam\naktif")

        sleep(2)

    except Exception as e:
        lcd.clear()
        lcd.putstr("Error:\n{}".format(str(e)))
        sleep(3)