# 实现电子相册的全部功能
# 注意啊，pico的双线程模式存在问题，等官方修吧

import machine
import os
import sdcard
import st7789py as st7789
import time
import struct
import _thread
import MMA7660py


# 硬件初始化部分---------------------------------------------
# 挂载sd卡
# 灵魂接线，我不得不使用了软件SPI！！！
sd_spi=machine.SoftSPI(0,sck=machine.Pin(17,machine.Pin.OUT),mosi=machine.Pin(18,machine.Pin.OUT),miso=machine.Pin(19,machine.Pin.IN))
sd=sdcard.SDCard(sd_spi,cs=machine.Pin(22))
sd.init_spi(40_000_000)
sd.init_card()
x=os.mount(sd,'/sd')
os.chdir('sd/bmpfile')
print(os.listdir())

# 定义按键 旋转编码器的按键
thekey=machine.Pin(7,machine.Pin.IN)

# 定义lcd_spi引脚
sck=machine.Pin(2,machine.Pin.OUT)
mosi=machine.Pin(3,machine.Pin.OUT)
rst=machine.Pin(0,machine.Pin.OUT)
dc=machine.Pin(1,machine.Pin.OUT)

# 定义屏幕信息
width=240
height=240
CENTER_Y = int(width/2)
CENTER_X = int(height/2)
# 初始化lcd_spi
lcd_spi=machine.SPI(0,baudrate=40000000,polarity=1, phase =0,sck=sck,mosi=mosi)
print(lcd_spi)
# 实例化display对象
display=st7789.ST7789(lcd_spi,width,height,reset=rst,dc=dc,xstart=0,ystart=0,rotation=0)
bmplist=os.listdir()
print(bmplist)
# def playmusic():
#     music.play()
# 
# _thread.start_new_thread(playmusic,())
global pwm
pwm=machine.PWM(machine.Pin(16))

# 利用定时器中断放音乐
# c调音符的频率
list_freqC=[60000,261,293,329,349,392,440,493]
#音符列表，音符和演奏时间
# 欢乐颂
list_music=([3,2],[3,2],[4,2],[5,2],
            [5,2],[4,2],[3,2],[2,2],
            [1,2],[1,2],[2,2],[3,2],
            [3,2],[2,2],[2,2],[0,2],
            
            [3,2],[3,2],[4,2],[5,2],
            [5,2],[4,2],[3,2],[2,2],
            [1,2],[1,2],[2,2],[3,2],
            [2,2],[1,2],[1,2],[0,2],
            
            [2,2],[2,2],[3,2],[1,2],
            [2,2],[3,2],[3,2],[1,2],
            [2,2],[3,2],[3,2],[2,2],
            [1,2],[2,2],[-5,2],[3,2],
            
            [3,2],[3,2],[4,2],[5,2],
            [5,2],[4,2],[3,2],[2,2],
            [1,2],[1,2],[2,2],[3,2],
            [2,2],[1,2],[1,2],[0,2]
            
            )
# 播放需要的变量,定时器1通过多次中断播放音乐
global mpos,volume,mlength
mpos=0
mlength=len(list_music)
volume=0


def interp1(timer):
    global mpos,mlength
    if mpos>=mlength:
        mpos=0
    pwm.freq(list_freqC[list_music[mpos][0]])
    pwm.duty_u16(volume)
    timer1.init(freq=list_music[mpos][1],callback=interp1_2)
    

def interp1_2(timer):
    pwm.duty_u16(0)
    global mpos
    mpos=mpos+1
    timer1.init(freq=100,callback=interp1)
    

# 定时器2通过2秒的中断查询姿态
mma7660=MMA7660py.MMA7660()
mma7660.init()
# 初始方向
global pic_up
pic_up=2

def interp2(timer):
    global pic_up
    
    result=mma7660.readtilt()
    # print(result)
    if result=='unknown!':
        pic_up=2   # 默认正方向
    elif result=='Left':
        pic_up=3
    elif result=='Rignt':
        pic_up=1
    elif result=='Up':
        pic_up=2
    elif result=='down':
        pic_up=0
    
    
timer1=machine.Timer() # 定时器1
timer1.init(freq=1,mode=machine.Timer.PERIODIC,callback=interp1)
timer2=machine.Timer() # 定时器2
timer2.init(freq=0.5,mode=machine.Timer.PERIODIC,callback=interp2)

# 显示图片
# 图片方向:0 下  2 上 3 右 4 下

#time.sleep(2) # 等待姿态传感器确定方向

#按键中断，按下改变图片刷新方式!
pic_method=0  # 显示图片方法参数0，1，2三种

def keyint(irq):   # 手册可没说要加irq参数
    # display.fill(st7789.RED)
    global pic_method
    pic_method=pic_method+1
    if pic_method>2:
        pic_method=0
    print('pic_method==',pic_method)
    time.sleep_ms(100)
    irq_flag=1
        
thekey.irq(keyint,machine.Pin.IRQ_FALLING)

# 死循环中显示图片和改变显示方向
while True:
    for xx in bmplist:
        fid=open(xx,'rb')
        # 图片显示方向选择
        display.rotation(pic_up)
        
        # 图片显示方式选择
        if pic_method==0:
            display.showMyBmp(fid)
        elif pic_method==1:
            display.showMyBmp2(fid)
        elif pic_method==2:
            display.showMyBmp3(fid)