import utime
import math
import machine
from machine import Pin
from machine import I2C
from lcd_api import LcdApi
from pico_i2c_lcd import I2cLcd

I2C_ADDR     = 0x27    # Decimal 39
I2C_NUM_ROWS = 2
I2C_NUM_COLS = 16

SDA_PIN = 0
SCL_PIN = 1
MOVE_PIN = 2
SELECT_PIN = 3

menu_settings = [
    ">EXIT           ",
    ">ALARM          ",
    ">DATE, TIME     ",
    ">DISPLAY MODE   "
]

menu_set_alarm = [
    ">Set weekday    ",
    ">Set hour       ",
    ">Set minute     "
    ">Set melody     "
]

counter = 0
menumber = 0
menumber1 = 0
menumber2 = 0


i2c = I2C(0, sda=machine.Pin(SDA_PIN), scl=machine.Pin(SCL_PIN), freq=400000)
lcd = I2cLcd(i2c, I2C_ADDR, I2C_NUM_ROWS, I2C_NUM_COLS)

button_move = Pin(MOVE_PIN, Pin.IN, Pin.PULL_UP)
button_select = Pin(SELECT_PIN, Pin.IN, Pin.PULL_UP)

print("Running Menu demo")
utime.sleep(2)

def but_move_pressed():
    pom = button_move.value()
    if (pom == False):
        return True
    else:
        return False

def but_select_pressed():
    pom = button_select.value()
    if (pom == False):
        return True
    else:
        return False

def lprint(msg, x, y):
    lcd.move_to(x, y)
    lcd.putstr(msg)


def set_alarm():
    lcd.clear()
    lprint("SET ALARM:", 0, 0)
    lprint(">>Alarm", 0, 1)
    while True:
        if (but_select_pressed()):
            break    


def set_date_time():
    lcd.clear()
    lprint("SET DATE TIME:  ", 0, 0)
    lprint(">>Date time", 0, 1)
    while True:
        if (but_select_pressed()):
            break    

def set_display_mode():
    lcd.clear()
    lprint("SET DISPLAY:    ", 0, 0)
    lprint(">>Display mode", 0, 1)
    while True:
        if (but_select_pressed()):
            break

def set_exit_settings():
   pass


def settings():
    global menumber
    lcd.clear()
    lprint("SETINGS:       ", 0, 0)
    menumber = 1
    
    while True:
        print("menumber: ", menumber, menu_settings[menumber - 1])
        lprint(menu_settings[menumber - 1], 0, 1)
        if (but_move_pressed()):
            print("MOVE pressed!")
            menumber = menumber + 1
            if (menumber > 4):
                menumber = 1
            utime.sleep(0.1)
        if (but_select_pressed()):
            print("SELECT pressed!")
            if (menumber == 1):
                # menumber = 0
                utime.sleep(0.5)
                break
            elif (menumber == 2):
                set_alarm()
            elif (menumber == 3):
                set_date_time()
            elif (menumber == 4):
                set_display_mode()
        utime.sleep(0.1)
    menumber = 0
    # break

while True:
    if (but_select_pressed()):
        utime.sleep(0.5)
        print("SELECT pressed!")
        settings()
    else:
        counter = counter + 1
        lcd.clear()
        lprint("{}".format(counter), 0, 0)    
    utime.sleep(0.1)