import network
import urequests
from machine import Pin, PWM, I2C, RTC
import dht
from time import sleep
from lcd_api import LcdApi
from i2c_lcd import I2cLcd

# Blynk Configuration
BLYNK_AUTH = "wASkvdw63BlxIE-74arhG3TjkzuhNbth"

# Wi-Fi Configuration
WIFI_SSID = "Wokwi-GUEST"
WIFI_PASSWORD = ""

# Pin Definitions
LDR_PIN = Pin(2, Pin.IN)
SERVO_PIN = PWM(Pin(4), freq=50)
DHT_PIN = Pin(15, Pin.IN)
dht_sensor = dht.DHT22(DHT_PIN)

# LCD Configuration
I2C_ADDR = 0x27
i2c = I2C(0, sda=Pin(21), scl=Pin(22))
lcd = I2cLcd(i2c, I2C_ADDR, 2, 16)

# RTC Configuration
rtc = RTC()
rtc.datetime((2024, 1, 1, 0, 0, 0, 0, 0))  # (year, month, day, weekday, hours, minutes, seconds, subseconds)

# Global Variables
lullaby_mode = 0
sleep_time = 20


# Wi-Fi Setup
def connect_wifi():
    wlan = network.WLAN(network.STA_IF)
    wlan.active(True)
    wlan.connect(WIFI_SSID, WIFI_PASSWORD)
    while not wlan.isconnected():
        print("Connecting to Wi-Fi...")
        sleep(1)
    print("Wi-Fi Connected:", wlan.ifconfig())


# Send Blynk Notification
def send_blynk_notification(message):
    url = f'http://blynk-cloud.com/{BLYNK_AUTH}/notify'
    data = {"body": message}
    try:
        response = urequests.post(url, json=data)
        response.close()
        print(f"Notification sent: {message}")
    except Exception as e:
        print(f"Failed to send notification: {e}")


# Servo Control
def set_servo_angle(angle):
    duty = int((angle / 180) * 1023 + 26)  # Calculate duty cycle
    SERVO_PIN.duty(duty)


# Periodic Updates
def my_timer_event():
    current_time = rtc.datetime()
    hour = current_time[4]

    lcd.move_to(14, 0)
    if lullaby_mode == 1 or not LDR_PIN.value() or hour == sleep_time:
        lcd.putstr("ON")
        for angle in range(90, 121, 1):  # Sweep up
            set_servo_angle(angle)
            sleep(0.02)

        for angle in range(120, 59, -1):  # Sweep down
            set_servo_angle(angle)
            sleep(0.02)

        for angle in range(60, 91, 1):  # Reset to neutral
            set_servo_angle(angle)
            sleep(0.02)
    else:
        lcd.putstr("OFF")
        set_servo_angle(90)  # Neutral position


def my_timer_event2():
    try:
        dht_sensor.measure()
        temperature = dht_sensor.temperature()
        humidity = dht_sensor.humidity()

        lcd.move_to(0, 1)
        lcd.putstr("Temp: {:.1f}C".format(temperature))
        lcd.move_to(0, 2)
        lcd.putstr("Hum: {:.1f}%".format(humidity))

        if temperature > 40:
            send_blynk_notification("Room is too hot!")
        elif temperature < 20:
            send_blynk_notification("Room is too cold!")
        elif humidity > 70:
            send_blynk_notification("Room's humidity is too high!")
    except Exception as e:
        print(f"Error reading DHT sensor: {e}")


# Main Loop
def main():
    connect_wifi()

    # Initialize LCD
    lcd.clear()
    lcd.putstr("Lullaby mode:")
    lcd.move_to(1, 3)
    lcd.putstr("Sleep time: ")
    lcd.move_to(13, 3)
    lcd.putstr(str(sleep_time) + "h")

    while True:
        my_timer_event()
        my_timer_event2()
        sleep(1)


# Run Main Loop
if __name__ == "__main__":
    main()