const { globalShortcut } = require('electron');
const is = require('electron-is');
const electronLocalshortcut = require('electron-localshortcut');

const registerMPRIS = require('./mpris');

const getSongControls = require('../../providers/song-controls');

function _registerGlobalShortcut(webContents, shortcut, action) {
  globalShortcut.register(shortcut, () => {
    action(webContents);
  });
}

function _registerLocalShortcut(win, shortcut, action) {
  electronLocalshortcut.register(win, shortcut, () => {
    action(win.webContents);
  });
}

function registerShortcuts(win, options) {
  const songControls = getSongControls(win);
  const { playPause, next, previous, search } = songControls;

  if (options.overrideMediaKeys) {
    _registerGlobalShortcut(win.webContents, 'MediaPlayPause', playPause);
    _registerGlobalShortcut(win.webContents, 'MediaNextTrack', next);
    _registerGlobalShortcut(win.webContents, 'MediaPreviousTrack', previous);
  }

  _registerLocalShortcut(win, 'CommandOrControl+F', search);
  _registerLocalShortcut(win, 'CommandOrControl+L', search);

  if (is.linux()) {
    registerMPRIS(win);
  }

  const { global, local } = options;
  const shortcutOptions = { global, local };

  for (const optionType in shortcutOptions) {
    registerAllShortcuts(shortcutOptions[optionType], optionType);
  }

  function registerAllShortcuts(container, type) {
    for (const action in container) {
      if (!container[action]) {
        continue; // Action accelerator is empty
      }

      console.debug(`Registering ${type} shortcut`, container[action], ':', action);
      if (!songControls[action]) {
        console.warn('Invalid action', action);
        continue;
      }

      if (type === 'global') {
        _registerGlobalShortcut(win.webContents, container[action], songControls[action]);
      } else { // Type === "local"
        _registerLocalShortcut(win, local[action], songControls[action]);
      }
    }
  }
}

module.exports = registerShortcuts;