"""
 Real-time clock using MicroPython
 https://www.hackster.io/kamaluddinkhan/creating-a-real-time-clock-on-encropi-using-micropython-176fe4
"""

from machine import Pin, I2C, SPI, UART
import utime
import sys
import ntptime
import ds1307
import st7789
import wlan
from sync_time import sync_time_NTP as sync_time

# import vga1_8x16 as font1
# import vga1_16x16 as font2
import vga1_16x32 as font

INTERVAL = 1000  # millisecond
I2C_FREQ = 400000

DISP_WIDTH = 240
DISP_HEIGHT = 240

#sec min hour week day month year
CurrentTime = b'\x00\x50\x14\x05\x21\x06\x22' #00:00:10 friday 03/03/2022
week  = ["Sun","Mon","Tues","Wed","Thur","Fri","Sat"];

if(sys.platform=="esp32"):
  led = Pin(2, Pin.OUT)
  disp_sck  = 18 # default SCK of SPI(1)
  disp_mosi = 23 # default MOSI of SPI(1)
  disp_miso = 19  # not use
  disp_cs  = 5
  disp_dc   = 17
  disp_rst  = 16
  disp_blk = 4
  # Initialize SPI communication
  spi = SPI(2, baudrate=40000000, polarity=1, phase=0, bits=8, sck=Pin(disp_sck), mosi=Pin(disp_mosi), miso=None)

  I2C_SDA = 21 # GPIO21
  I2C_SCL = 22 # GPIO22
  # Initialize I2C on GP16 (SDA) and GP17 (SCL)
  i2c = I2C(0, scl=Pin(I2C_SCL), sda=Pin(I2C_SDA), freq=I2C_FREQ)     #initializing the I2C method for ESP32

elif(sys.platform=="rp2"):
  led = Pin("LED", Pin.OUT)
  disp_sck  = 6 # default SCK of SPI(0)
  disp_mosi = 7 # default MOSI of SPI(0)
  disp_miso = 4  # not use
  disp_cs  = 5
  disp_rst = 2
  disp_dc  = 1
  disp_blk = 3

  # 初始化 SPI
  spi = SPI(0, baudrate=24000000, polarity=0, phase=0, bits=8, sck=Pin(disp_sck), mosi=Pin(disp_mosi), miso=None)

  I2C_SDA = 16 # GPIO16
  I2C_SCL = 17 # GPIO17
  i2c = I2C(0, scl=Pin(I2C_SCL), sda=Pin(I2C_SDA), freq=I2C_FREQ)

def info():
  # tft.init()
  utime.sleep(0.2)
  tft.text(font,"RP2040 RTC", 15,20)
  tft.fill_rect(15, 60, 210,10, st7789.RED)

  tft.text(font,"Real Time", 15,70,st7789.YELLOW)
  tft.text(font,"Clock", 15,100,st7789.YELLOW)
  tft.fill_rect(15, 140, 210, 10, st7789.BLUE)
  utime.sleep(2)
  tft.fill(0) #clear screen

# Start Function
if __name__ == "__main__":
  print("Hello, " + sys.platform + "!")

  tft = st7789.ST7789(spi,
                      DISP_WIDTH, DISP_HEIGHT,
                      reset=Pin(disp_rst, Pin.OUT),
                      cs=Pin(disp_cs, Pin.OUT),
                      dc=Pin(disp_dc, Pin.OUT),
                      backlight=Pin(disp_blk, Pin.OUT),
                      rotation=0)
  print(st7789.__name__, tft.width, "x", tft.height)
  info()

  rtc = ds1307.DS1307(i2c)
  now = (2018, 3, 24, 6, 13, 45, 21, 0)
  rtc.datetime(now)

  # ========== CONNECT WIFI ==========
  tft.text(font,"Connecting to", 15,16)
  tft.text(font," WiFi Router", 15,56)
  wlan.connect_wifi() # Connecting to WiFi Router
  utime.sleep_ms(1000)
  tft.fill(0) #clear screen

  # ========== NTP TIME SYNC ==========
  print("Syncing time from NTP...")
  timer = sync_time()  # Synchronize the time
  rtc.datetime((timer[0], timer[1], timer[2], timer[6] + 1, timer[3], timer[4], timer[5], 0))

  lastTime = utime.ticks_ms()
  # ========== MAIN LOOP ==========
  try:
    while True:
      currTime = utime.ticks_ms()
      if (currTime - lastTime > INTERVAL):
        lastTime = currTime

        time_now = rtc.datetime()
        # time_now = utime.localtime(utime.time() + UTC_OFFSET)

        year = "{:04d}".format(time_now[0])
        month = "{:02d}".format(time_now[1])
        day = "{:02d}".format(time_now[2])
        hour = "{:02d}".format(time_now[4])
        minute = "{:02d}".format(time_now[5])
        second = "{:02d}".format(time_now[6])

        # SERIAL PRINT
        str_date = year + ":" + month + ":" + day
        str_time = hour + ":" + minute + ":" + second
        print("Date: " + str_date, end='')
        print("; Time: " + str_time)

        # DISPLAY
        tft.text(font,"Date: ", 15,16,st7789.WHITE)
        tft.text(font,str_date, 15,56,st7789.WHITE)
        tft.fill_rect(15, 96, 210,10, st7789.RED)

        tft.text(font,"Time: ", 15,112,st7789.WHITE)
        tft.text(font,str_time, 15,152,st7789.YELLOW)
        tft.fill_rect(15, 190, 210, 10, st7789.BLUE)

      utime.sleep_ms(100)

  except KeyboardInterrupt: # 使用者中斷執行(通常是輸入^C)
    print("Stop")