from machine import Pin
import wifi_client
import time



RATE_VALUE = 0
BUTTON_SEND = None
RATE_BUTTONS = None

# initialize a specific Pin as Input with an pull-down resistor
def initialize_pin(pin_number:int):
    button = Pin(pin_number, Pin.IN, Pin.PULL_DOWN)
    return button


# activates send pin
def activate_sendPin() -> None:
    BUTTON_SEND.irq(trigger=Pin.IRQ_RISING, handler=sendButton_pressed)

# deactivates send pin
def deactivate_sendPin() -> None:
    BUTTON_SEND.irq(handler=None)



# rate button is pressed
def rate_button_pressed(pin:Pin) -> None:

    global RATE_VALUE, RATE_BUTTONS, BUTTON_SEND

    # get pin id
    pin_id = str(pin).split('(')[1].split(',')[0]
    pin_id = pin_id[len(pin_id)-1]

    RATE_VALUE = pin_id
    print(f"Song is rated with: {RATE_VALUE}")

    # activate send pin, when rate pin was selected
    activate_sendPin()



# Reset button ist pressed
def sendButton_pressed(pin) -> None:
    global RATE_VALUE, BUTTON_SEND
    # deactivate send pin to prevent multiple sends
    deactivate_sendPin()
    print('send button pressed')

    # send a request to the access point with the selected rate value
    wifi_client.send_request(RATE_VALUE)

        

# start the rating program
# initialize it with the pin list for the rate_buttoms and the pin for the send button
def start_rating(rate_button_pins:list, button_send_pin:int) -> None:

    global RATE_BUTTONS, BUTTON_SEND

    # create list for all rate buttons
    RATE_BUTTONS = [None] * len(rate_button_pins)
    
    # initialize all pins as buttons and add them to the rate_button list
    for pin in rate_button_pins:
        button = initialize_pin(pin)
        button.irq(trigger=Pin.IRQ_RISING, handler=rate_button_pressed)
        RATE_BUTTONS[pin] = button

    # define pin 6 as send button
    # not activate it, to not be able to send before a rate pin is selected
    BUTTON_SEND = initialize_pin(button_send_pin)

    print(RATE_BUTTONS)
    print(BUTTON_SEND)

    while True:
        pass