// Create controller for GET request to '/playback'
// Returns ACK message
export const pbGet = async (req, res) => {
  res.send({ playback: global.timer.state });
};

// Create controller for GET request to '/playback/onAir'
// Turns onAir flag to true
export const onAir = async (req, res) => {
  global.timer.trigger('onAir') ? res.sendStatus(200) : res.sendStatus(400);
};

// Create controller for GET request to '/playback/onAir'
// Turns onAir flag to true
export const offAir = async (req, res) => {
  global.timer.trigger('offAir') ? res.sendStatus(200) : res.sendStatus(400);
};

// Create controller for GET request to '/playback/start'
// Starts timer object
export const pbStart = async (req, res) => {
  const { eventId, eventIndex } = req.query;
  if (eventId) {
    global.timer.trigger('startById', eventId)
      ? res.sendStatus(200)
      : res.status(400).send('Invalid event ID');
  } else if (eventIndex) {
    const index = Number(eventIndex);
    if (!isNaN(index)) {
      global.timer.trigger('startByIndex', index - 1)
        ? res.sendStatus(200)
        : res.status(400).send('Invalid event index');
    } else {
      res.status(400).send('Invalid event index');
    }
  } else {
    global.timer.trigger('start') ? res.sendStatus(200) : res.sendStatus(400);
  }
};

// Create controller for GET request to '/playback/pause'
// Pauses timer object
export const pbPause = async (req, res) => {
  global.timer.trigger('pause') ? res.sendStatus(200) : res.sendStatus(400);
};

// Create controller for GET request to '/playback/stop'
// Stops timer object
export const pbStop = async (req, res) => {
  global.timer.trigger('stop') ? res.sendStatus(200) : res.sendStatus(400);
};

// Create controller for GET request to '/playback/roll'
// Sets timer object to roll mode
export const pbRoll = async (req, res) => {
  global.timer.trigger('roll') ? res.sendStatus(200) : res.sendStatus(400);
};

// Create controller for GET request to '/playback/previous'
// Sets timer object to roll mode
export const pbPrevious = async (req, res) => {
  global.timer.trigger('previous') ? res.sendStatus(200) : res.sendStatus(400);
};

// Create controller for GET request to '/playback/next'
// Sets timer object to roll mode
export const pbNext = async (req, res) => {
  global.timer.trigger('next') ? res.sendStatus(200) : res.sendStatus(400);
};

// Create controller for GET request to '/playback/load'
// Load requested event
export const pbLoad = async (req, res) => {
  const { eventId, eventIndex } = req.query;
  if (eventId) {
    global.timer.trigger('loadById', eventId)
      ? res.sendStatus(200)
      : res.status(400).send('Invalid event ID');
  } else if (eventIndex) {
    const index = Number(eventIndex);
    if (!isNaN(index)) {
      global.timer.trigger('loadByIndex', index - 1)
        ? res.sendStatus(200)
        : res.status(400).send('Invalid event index');
    } else {
      res.status(400).send('Invalid event index');
    }
  } else {
    res.status(400).send('No event given');
  }
};

// Create controller for GET request to '/playback/unload'
// Unloads any events
export const pbUnload = async (req, res) => {
  global.timer.trigger('unload') ? res.sendStatus(200) : res.sendStatus(400);
};

// Create controller for GET request to '/playback/reload'
// Reloads current event
export const pbReload = async (req, res) => {
  global.timer.trigger('reload') ? res.sendStatus(200) : res.sendStatus(400);
};