#!/usr/bin/python3

import sys
import json
import subprocess
from time import sleep
from PyDMXControl.controllers import OpenDMXController
from PyDMXControl.profiles.Generic import Dimmer

## ask for input, play, wait for stop, ask again

# python3 mapchannels.py 

# 0-255 dim / brightness range 
# fadein, fadeout in milliseconds
brightness = 10
fadein = 1000
fadeout = 1000

data = json.load(open('sequence.json'))

print("\n * Reset USB device")
subprocess.call(['usbreset', "FT232R USB UART"])

print("\n ** DMX start...")
dmx = OpenDMXController()

## sort by "channel" -> channel/line number 
lines = sorted(data, key=lambda x: x["channel"])
## remove dupes and add lights once in this order 
channels = []
for l in lines:
    if l['channel'] not in channels:
        channels.append(l['channel'])
        line = dmx.add_fixture(Dimmer, name=l['channel'])
print("\n All channel names:")
print(channels)
print()
#dmx.web_control()

try:
    # forever until keyboard interrupt / ctrl-C
    while 1>0:
        print(" * Press 'CTRL-C' to EXIT, or  ")
        channelname = input(" - Enter channel name to fadein: ")
        # invalid channelname
        while channelname not in channels:
            print(" !! Please check channel name !!")
            print("\n All channel names:")
            print(channels)
            print()
            channelname = input(" - Enter correct channel name: ")
        print(f"\n - Play channel: {channelname}")
        line = dmx.get_fixtures_by_name(channelname)[0]
        line.dim(brightness, fadein)
        x = input(f" - Press ANY key (+ENTER) to fadeout {channelname}")
        line.dim(0, fadeout)
        sleep(fadeout/1000 + 1)
        print()

except KeyboardInterrupt:
    line.dim(0, fadeout)
    sleep(fadeout/1000 + 1)
    dmx.close()
    print()
    sys.exit()
print()