[WIP] Physical "Album" Surrogate

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

import evdev
import time
import sys
import re
import json
import subprocess

<<barcode_reader>>

<<dispatcher>>

def barcodes(device):
    dev = evdev.InputDevice(device)
    dev.grab()
    barcode = []
    for event in dev.read_loop():
        if event.type == evdev.ecodes.EV_KEY:
            key_event = evdev.util.categorize(event)
            print(key_event)
            if key_event.keystate == evdev.KeyEvent.key_down:
                if key_event.keycode == "KEY_ENTER":
                    yield "".join(barcode)
                    barcode = []
                elif re.match(r"^KEY_[A-Z0-9]$", key_event.keycode):
                    barcode.append(key_event.keycode[4:])

import json
return json.dumps({r[0]: (r[1], r[2]) for r in actions})

ACTIONS = json.load(open(sys.argv[2]))

for barcode in barcodes(sys.argv[1]):
    try:
        action, parameter = ACTIONS[str(int(barcode))]
        print(barcode, action)
        if action == "Spotify":
            subprocess.run(["spotify-cli", "start_playback", "0f485546c29815174e3dab22bdeabcfd2f08e677", parameter])
    except Exception as e:
        print("Fail:", barcode, e)