"""MicroPython RP2 / Raspberry Pi Pico (RP2040). Hardware run NOT_EVALUATED.

Copy this file + lighting_control.py to Pico after verifying wiring unpowered.
GP15 to momentary switch to GND. GPIO never powers LED loads directly.
"""
from machine import Pin,PWM
from time import ticks_ms,ticks_diff,sleep_ms
from lighting_control import PINS,duty_u16,levels,DebouncedPress

pwms=[]
for gpio in PINS:
    pin=Pin(gpio,Pin.OUT,value=0)
    pwms.append(PWM(pin,freq=2000,duty_u16=0))
button=Pin(15,Pin.IN,Pin.PULL_UP)
previous=ticks_ms();debounce=DebouncedPress(previous);mode=0
phase_ms=0;ramp_ms=0
try:
    while True:
        now=ticks_ms();dt=max(0,ticks_diff(now,previous));previous=now
        phase_ms=(phase_ms+dt)%10000;ramp_ms=min(1200,ramp_ms+dt)
        elapsed=phase_ms/1000
        if debounce.update(button.value(),now,ticks_diff):mode=(mode+1)%4
        ramp=ramp_ms/1200
        for pwm,percent in zip(pwms,levels(mode,elapsed)):
            pwm.duty_u16(duty_u16(percent*ramp))
        sleep_ms(10)
finally:
    for pwm in pwms:
        pwm.duty_u16(0);pwm.deinit()
    for gpio in PINS:Pin(gpio,Pin.OUT,value=0)