from machine import Pin, Timer, RTC
import utime
from lcd_api import LcdApi

# Define LCD pin connections
RS = 15
E = 14
D4 = 13
D5 = 12
D6 = 11
D7 = 10

# Define LCD commands
LCD_CLEAR = 0x01
LCD_HOME = 0x02
LCD_ENTRY_MODE = 0x06
LCD_DISPLAY_ON = 0x0C
LCD_FUNCTION_SET = 0x28

#lcd.backlight_on()  # Ensure this line is included to turn on the backlight
#lcd.putstr("Hello, World!")

# Initialize LCD pins
rs = Pin(RS, Pin.OUT)
e = Pin(E, Pin.OUT)
d4 = Pin(D4, Pin.OUT)
d5 = Pin(D5, Pin.OUT)
d6 = Pin(D6, Pin.OUT)
d7 = Pin(D7, Pin.OUT)

# Function to send a command to the LCD
def lcd_command(cmd):
    rs.value(0)
    lcd_write(cmd)
    utime.sleep_ms(2)

# Function to send data to the LCD
def lcd_data(data):
    rs.value(1)
    lcd_write(data)
    utime.sleep_ms(2)

# Function to write data to the LCD
def lcd_write(data):
    e.value(1)
    d4.value((data >> 4) & 1)
    d5.value((data >> 3) & 1)
    d6.value((data >> 2) & 1)
    d7.value((data >> 1) & 1)
    e.value(0)
    e.value(1)
    d4.value(data & 1)
    d5.value((data >> 3) & 1)
    d6.value((data >> 2) & 1)
    d7.value((data >> 1) & 1)
    e.value(0)

# Function to initialize the LCD
def lcd_init():
    print("Initializing LCD")
    lcd_command(LCD_FUNCTION_SET)
    lcd_command(LCD_DISPLAY_ON)
    lcd_command(LCD_CLEAR)
    lcd_command(LCD_ENTRY_MODE)
    print("LCD Initialized")

# Function to display a string on the LCD
def lcd_putstr(string):
    for char in string:
        lcd_data(ord(char))

# Function to update the LCD with date and time
def update_lcd(timer):
    # Get current date and time
    t = utime.localtime()
    date_str = "{:02}/{:02}/{:04}".format(t[2], t[1], t[0])
    time_str = "{:02}:{:02}:{:02}".format(t[3], t[4], t[5])
    
    # Display date and time on LCD
    print("Updating LCD")
    lcd_command(LCD_CLEAR)
    lcd_putstr("Date: " + date_str)
    lcd_command(0xC0)  # Move to second line
    lcd_putstr("Time: " + time_str)
    print("Updated Time: ",time_str)

# Initialize the LCD
lcd_init()

# Create a timer to update the LCD every second
timer = Timer()
timer.init(period=1000, mode=Timer.PERIODIC, callback=update_lcd)