# async LED effects controller

# non standard primitives from Peter Hinch: https://github.com/peterhinch/micropython-async 

# single click button press for next effect
# double-click button press to reset effects
# long button press to turn off effects

from machine import Pin
import uasyncio as asyncio
from pushbutton import Pushbutton
from queue import Queue

async def perm_toggle(led, delay):
      print('perm_toggle', delay)

      while True:
          led.toggle()
          await asyncio.sleep_ms(delay)

#funcs is a list of function names, with arguments to use when calling them
funcs = ( 
    (perm_toggle, {"led": led1, "delay": 100}),
    (perm_toggle, (led1, 100)),
    (print, ('hello', 42))
)

#normal function call equivalents:
funcs[0][0](**funcs[0][1])
 ==
funcs[0][1](*funcs[1][1])
 ==
perm_toggle(led=led1, delay=300)

#print example:
funcs[2][1](*funcs[2][1])
 OUTPUTS:
'hello 42'

async def led_controller(queue):
    print("LED effects controller started...")
    print("# single click button press for next effect\n# double-click button press to reset effects\n# long button press to turn off effects")
    led1 = machine.Pin(25, machine.Pin.OUT)
    
    
    funcs = ( # this could be any number of different functions performing NeoMatrix effects
        (perm_toggle, {"led": led1, "delay": 100}),
        (perm_toggle, {"led": led1, "delay": 300}),
        (perm_toggle, {"led": led1, "delay": 650}),
        (perm_toggle, {"led": led1, "delay": 1000}),
        (perm_toggle, {"led": led1, "delay": 2000}),
        (perm_toggle, {"led": led1, "delay": 4000}),
        (perm_toggle, {"led": led1, "delay": 7000}),
    )
    imax = len(funcs) - 1
    i = 0
    


    effect = None #init
    
    while True:
        qitem = await queue.get()
        print('qitem:', qitem)

        if qitem == 'next':
            if effect != None:
                effect.cancel()
            effect = asyncio.create_task(funcs[i][0](**funcs[i][1]))
            if i == imax:
                i = 0
            else:
                i += 1
                
        elif qitem == 'reset':
            if effect != None:
                effect.cancel()
            effect = asyncio.create_task(funcs[0][0](**funcs[0][1]))
            i = 1
            
        elif qitem == 'off':
            if effect != None:
                effect.cancel()
            i = 0
            
        else:
            continue #unknown command handling

async def my_app():
    queue = Queue()
    
    pin = Pin(17, Pin.IN, Pin.PULL_UP)
    pb = Pushbutton(pin)
    pb.press_func(queue.put, ('next',))   #single click
    pb.double_func(queue.put, ('reset',)) #double click
    pb.long_func(queue.put, ('off',))     #long press

    task = asyncio.create_task(led_controller(queue,))
    
    while True:
        await asyncio.sleep_ms(30000)
        print('main still running') #get a command by Bluetooth or some other sensor instead?
        
asyncio.run(my_app())  # Run main application code