/**
 * Ping your friend any number of emojis automatically
 * in the slack web application
 *
 * This script is only for having fun. not for other purposes :)
 *
 * Working on optimizing it.
 */

// Variable Declaration
var expectedNumberOfPings = 20; // Set the number of Emojis, you want to ping
var pingTimeoutHolder = [];

/**
 * pingEmojis
 * @description [Pings the Emojis]
 * @return {Undefined}
 */
function pingEmojis() {
  // Variable Declarations
  var numberOfPings = 0;
  var sec = 10;
  var inc = 50;
  var batchLimit = 10;
  var itemsInBatch = 0;

  // Goes through the emoji global object which contains all the
  // data about the emoji's in slack web application
  for (var key in emoji.data) {
    // Holds the current emoji data
    var data = emoji.data[key];
    // Gets the current emoji's value
    var currentEmoji = typeof data[3] != "undefined" && typeof data[3][0] == "string" ? data[3][0] : undefined;

    // Checks for the validity of it
    if (currentEmoji) {
      // Holds back the timeout objects, so that it can be used
      // in case for clearing it
      pingTimeoutHolder.push(setTimeout(function(currentEmoji) {
        // Sets the text in the message box to empty
        $('[aria-label^="Message "]>p').text(" ");
        // Sets the text in the message box to emoji's value covered by colon
        $('[aria-label^="Message "]>p').text(":" + currentEmoji + ":");
        // Submits the Message form
        setTimeout(function() {
          $("#msg_form").submit();
        }, 0);
      }, sec, currentEmoji));
      // Checks the expected pings to be unlimited or not
      if (expectedNumberOfPings !== Infinity) {
        // Increments the ping count
        numberOfPings++;
        // Exits the loop when the number of pings reaches the expected count
        if (expectedNumberOfPings === 0 || numberOfPings === expectedNumberOfPings) {
          break;
        }
      }
      // Increments the timeout, so that the next ping will not get overlapped
      // with the previous one
      sec += inc;
    }
  }
}

/**
 * stopPinging
 * @description [Cancels the Pings which not yet executed]
 * @return {Undefined}
 */
function stopPinging() {
  // Loops through the timeout and clears it
  pingTimeoutHolder.map(function(pingTimeout) {
    clearTimeout(pingTimeout);
  });
  // Resets the holder
  pingTimeoutHolder = [];
}