from machine import Pin, PWM
import time

interruptCounter = 0  # 記錄按下按鈕的次數
interruptHandled = False  # 用於標記中斷是否已處理

button = Pin(35, Pin.IN, Pin.PULL_UP)  # 按鈕
LED_red = Pin(19, Pin.OUT)  # 紅色 LED
LED_green = Pin(18, Pin.OUT)  # 綠色 LED
LED_blue = Pin(17, Pin.OUT)  # 藍色 LED

pwm_led_red = PWM(LED_red, freq=1000)  # 紅色 LED PWM 控制
pwm_led_red.duty(0)  # 初始化紅色 LED 亮度為 0
pwm_led_green = PWM(LED_green, freq=1000)  # 綠色 LED PWM 控制
pwm_led_green.duty(0)  # 初始化綠色 LED 亮度為 0
pwm_led_blue = PWM(LED_blue, freq=1000)  # 藍色 LED PWM 控制
pwm_led_blue.duty(0)  # 初始化藍色 LED 亮度為 0

def button_irq(button):
    global interruptCounter, interruptHandled
    time.sleep_ms(150)  # 防止彈跳
    if button.value() == 1 and not interruptHandled:
        interruptCounter += 1
        interruptHandled = True
        print('pin hcange:', button)
        print('interruptCounter:', interruptCounter)
        if interruptCounter % 4 == 1:
            # LED 紅色快速漸亮並快速漸暗
            for i in range(1024):  # 快速漸亮
                pwm_led_red.duty(i)
                time.sleep(0.001)
            for j in range(1024):  # 快速漸暗
                pwm_led_red.duty(1023 - j)
                time.sleep(0.001)
        elif interruptCounter % 4 == 2:
            # LED 綠色快速漸亮並快速漸暗
            for i in range(1024):  # 快速漸亮
                pwm_led_green.duty(i)
                time.sleep(0.001)
            for j in range(1024):  # 快速漸暗
                pwm_led_green.duty(1023 - j)
                time.sleep(0.001)
        elif interruptCounter % 4 == 3:
            # LED 藍色規律地亮 3 秒、滅 1.5 秒共 3 次
            for k in range(3):
                pwm_led_blue.duty(1023)  # 亮
                time.sleep(3)
                pwm_led_blue.duty(0)  # 滅
                time.sleep(1.5)
        elif interruptCounter % 4 == 0:
            print("End Program!")
            # 停止程式
            return
    elif button.value() == 0:
        interruptHandled = False  # 重置標記

# 主迴圈
while True:
    button.irq(trigger=Pin.IRQ_RISING, handler=button_irq)
    pwm_led_red.duty(1000)
    print('start')
    # 主程式可以在這裡執行其他任務
    time.sleep(1)