from flask import Flask, render_template, request
from os import system
import subprocess

app = Flask(__name__)

def check_app_states(apps):
  for app in apps:
    if not 'default' in app:
      app['default'] = False
    if 'state_cmd' in app and len(app['state_cmd']) > 0:
      if 'state_expect' in app:
        try:
          result = subprocess.run(app['state_cmd'], shell=True, check=True)
          print(result)
          if result.stdout == app['state_expect']:
            app['default'] = not app['default'] if result.stdout == app['state_expect'] else app['default']
        except subprocess.CalledProcessError:
          continue # continue with default, current state could not be determined
      else:
        exitcode = system(app['state_cmd'])
        if exitcode == 0:
          app['default'] = not app['default'] if exitcode == 0 else app['default']
  return apps

@app.route("/")
def index():
  if request.args.get('cmd') is not None:
    exitcode = system(request.args.get('cmd'))
    if exitcode == 0:
      return "Command was run", 200
    else:
      return "Command failed (exit code {0})".format(exitcode), 500

  templateData = {
    'is_local': True if request.remote_addr == "127.0.0.1" else False,
    'apps': [
      {
        'name': 'clock',
        'cmd': 'espeak "$text"'
      },
      {
        'name': 'toggle',
        'text_on': 'ON',
        'text_off': 'OFF',
        'cmd_on': 'espeak "on"',
        'cmd_off': 'espeak "off"',
        'cooldown': 3000
      },
      {
        'name': 'toggle',
        'text_on': '🔊',
        'text_off': '🔇',
        'default': False,
        'cmd_on': 'mpg123 ~/tng_viewscreen_on.mp3',
        'cmd_off': 'mpg123 ~/tng_viewscreen_off.mp3',
        'cooldown': 1000,
        'show_cooldown': False
      },
      {
        'name': 'toggle',
        'text_on': 'file exist',
        'text_off': 'file gone',
        'default': False,
        'cmd_on': 'touch ~/testfile.tmp',
        'cmd_off': 'rm ~/testfile.tmp',
        'state_cmd': 'test -f ~/testfile.tmp',
        'cooldown': 1000,
        'show_cooldown': False
      }
    ]
  }

  templateData['apps'] = check_app_states(templateData['apps'])

  return render_template('index.html', **templateData)

@app.route("/configure")
def configure():
    return render_template('configure.html')

if __name__ == "__main__":
   app.run(host='0.0.0.0', port=8081, debug=True)