from machine import Pin, ADC, SoftI2C, Timer 
from ssd1306 import SSD1306_I2C
import time
from lcd_api import LcdApi 
from i2c_lcd import I2cLcd 

pot_adc = ADC(Pin(4))
pir_digital = Pin(33, Pin.IN)
ss_digital = Pin(17, Pin.IN)
pb_digital = Pin(25, Pin.IN, Pin.PULL_UP)
#pb_digital = Pin(25, Pin.IN)
ds_digital = Pin(32,Pin.IN)

rgb_red = Pin(27, Pin.OUT)
rgb_green = Pin(14, Pin.OUT)
rgb_blue = Pin(12, Pin.OUT)
led = Pin(26, Pin.OUT)

# Initialize I2C for OLED
#i2c = I2C(0, scl=Pin(22), sda=Pin(21))
i2c = SoftI2C(scl=Pin(22), sda=Pin(21), freq=100000) 
oled = SSD1306_I2C(128, 64, i2c)

I2C_ADDR2 = 0x27 
totalRows = 4 
totalColumns = 16

lcd = I2cLcd(i2c, I2C_ADDR2, totalRows, totalColumns)

# Display initialization message
oled.fill(0)
oled.text("Initializing...", 0, 0)
oled.show()
time.sleep(2)

#####################################
###### SUBROUTINE FOR INTERRUPT

# create a function to be called when the trigger occurs 
# this function just toggles the onboard LED 
def interrupt_ds(pin):  
    print('Interrupt by:', pin)
    rgb_red.off()
    rgb_green.on()
    rgb_blue.off()
    time.sleep(1)
    rgb_red.off()
    rgb_green.off()
    rgb_blue.off()

# Interrupt trigger
ds_digital.irq(trigger=Pin.IRQ_RISING, handler=interrupt_ds)   

#####################################
###### SUBROUTINE FOR TIMER

# create an uninitialized timer object 
myTimer = Timer(1) 

# create a function to be called when the timer goes off 
# this function just toggles the onboard LED 
def toggle_led(myTimer):
    rgb_red.off()
    rgb_green.off()
    rgb_blue.on()
    #time.sleep(0.5)
    #rgb_red.off()
    #rgb_green.off()
    #rgb_blue.off()
    #time.sleep(0.5)

# initialize the timer object to tick every second (1,000 milliseconds)
myTimer.init(period=1000, mode=Timer.PERIODIC, callback=toggle_led) 

#####################################
######  Main loop
while True:
    pot_value = pot_adc.read()

    # Clear the display
    oled.fill(0)

    # Display the heartbeat value
    oled.text("Heartbeat:", 0, 0)
    oled.text(str(pot_value), 0, 10)

    # Update the display
    oled.show()

    # Read the state of the slide switch
    ss_state = ss_digital.value()

    # Check the state of the slide switch
    if ss_state == 1:
        # Slide switch is ON, turn on the LED
        lcd.move_to(0,0)
        lcd.putstr('Hi')
    else:
        # Slide switch is OFF, turn off the LED
        lcd.move_to(0,0)
        lcd.putstr('  ')

    #get the input response
    pb_state = pb_digital.value()

    #if button1 is pushed (1 means pushed)
    if pb_state == 0:        
        #turn ON led_red1
        led.on()
        time.sleep(1)
    else:
        led.off()

    #get the input response
    pir_state = pir_digital.value()

    #if button1 is pushed (1 means pushed)
    
    rgb_red.off()
    rgb_green.off()
    rgb_blue.off()
    if pir_state == 1:        
        #turn ON led_red1
        rgb_red.on()
        rgb_green.off()
        rgb_blue.off()
        time.sleep(1)
    #else:
    #    rgb_red.off()
    #    rgb_green.off()
    #    rgb_blue.off()

    # Wait before taking another reading
    time.sleep(0.5)