"""
Copyright (c) 2022 Gary Sims

MIT License
SPDX-License-Identifier: MIT
"""

import max7219
from time import sleep
from machine import RTC
from ds1307 import DS1307
import network
import time
from machine import Pin, RTC, SPI, I2C
from machine_i2c_lcd import I2cLcd
import urequests

clock_style = 1 # 1 = 3 col, 2 = 6 col BDC, 3 = length style

def binary_at(disp, b, x):
    y = 7
    while y > 1:
        bit = b & 0x01
        if bit == 1:
            disp.pixel(x, y, 1)
        y = y - 1
        b = b >> 1

def bcd_at(disp, b, x):
    d1 = b // 10
    d2 = b % 10
    print(b, d1, d2)
    binary_at(display, d1, x)
    binary_at(display, d2, x+1)

def len_at(disp, b, x):
    d1 = b // 10
    d2 = b % 10

    disp.vline(x, 8-d1, d1, 1)
    if d2==9:
        disp.pixel(x,0,1)
    disp.vline(x+1, 8-d2, d2, 1)




  
mode = Pin(15, Pin.IN, Pin.PULL_DOWN)
#led.off()


#Matrix init
i2c_rtc = I2C(0,scl = Pin(1),sda = Pin(0),freq = 100000)
i2c_lcd = I2C(1,scl = Pin(7),sda = Pin(6),freq = 100000)
lcd = I2cLcd(i2c_lcd, 0x27, 2, 16)
spi = SPI(0,sck=Pin(2),mosi=Pin(3))
cs = Pin(5, Pin.OUT)
display = max7219.Matrix8x8(spi, cs, 1)
display.brightness(10)
display.fill(0)
display.show()


#led.on()

rtc = DS1307(i2c_rtc)
#print(rtc.datetime())



#force_sync_counter = 0
while True:
    #led.toggle()
    Y, m, D, W, H, M, S, SS = rtc.datetime()
    #print(H, M, S)
    
    if mode.value() == 0 :

        display.fill(0)
    
        if clock_style == 1:
            binary_at(display, H, 0)
            binary_at(display, M, 2)
            binary_at(display, S, 4)
        elif clock_style == 2:
            bcd_at(display, H, 0)
            bcd_at(display, M, 3)
            bcd_at(display, S, 6)
        else:
            len_at(display, H, 0)
            len_at(display, M, 3)
            len_at(display, S, 6)
        
        display.show()
    else :
        lcd.move_to(0,0)
        lcd.putstr("Time:")
        lcd.move_to(6,0)
        lcd.putstr(str(H) + ":" + str(M) + ":" + str(S))
        lcd.move_to(0,1)
        lcd.putstr("Date:")
        lcd.move_to(6,1)
        lcd.putstr(str(D) + "/" + str(m) + "/" + str(Y))

    #sleep(1)