import { registerPlugin } from 'linkifyjs';

/**
	Mention parser plugin for linkify
*/
var mention = function mention(_ref) {
  var scanner = _ref.scanner,
      parser = _ref.parser,
      utils = _ref.utils;
  var _scanner$tokens = scanner.tokens,
      DOMAIN = _scanner$tokens.DOMAIN,
      LOCALHOST = _scanner$tokens.LOCALHOST,
      TLD = _scanner$tokens.TLD,
      NUM = _scanner$tokens.NUM,
      SLASH = _scanner$tokens.SLASH,
      UNDERSCORE = _scanner$tokens.UNDERSCORE,
      DOT = _scanner$tokens.DOT,
      AT = _scanner$tokens.AT;
  var START_STATE = parser.start;
  var Mention = utils.createTokenClass('mention', {
    isLink: true,
    toHref: function toHref() {
      return '/' + this.toString().substr(1);
    }
  }); // @

  var AT_STATE = START_STATE.tt(AT); // @
  // @_,

  var AT_SYMS_STATE = AT_STATE.tt(UNDERSCORE); //  @_*

  AT_SYMS_STATE.tt(UNDERSCORE, AT_SYMS_STATE);
  AT_SYMS_STATE.tt(DOT, AT_SYMS_STATE); // Valid mention (not made up entirely of symbols)

  var MENTION_STATE = AT_STATE.tt(DOMAIN, Mention);
  AT_STATE.tt(TLD, MENTION_STATE);
  AT_STATE.tt(LOCALHOST, MENTION_STATE);
  AT_STATE.tt(NUM, MENTION_STATE); // @[_.]* + valid mention

  AT_SYMS_STATE.tt(DOMAIN, MENTION_STATE);
  AT_SYMS_STATE.tt(LOCALHOST, MENTION_STATE);
  AT_SYMS_STATE.tt(TLD, MENTION_STATE);
  AT_SYMS_STATE.tt(NUM, MENTION_STATE); // More valid mentions

  MENTION_STATE.tt(DOMAIN, MENTION_STATE);
  MENTION_STATE.tt(LOCALHOST, MENTION_STATE);
  MENTION_STATE.tt(TLD, MENTION_STATE);
  MENTION_STATE.tt(NUM, MENTION_STATE);
  MENTION_STATE.tt(UNDERSCORE, MENTION_STATE); // Mention with a divider

  var MENTION_DIVIDER_STATE = MENTION_STATE.tt(SLASH);
  MENTION_STATE.tt(SLASH, MENTION_DIVIDER_STATE);
  MENTION_STATE.tt(DOT, MENTION_DIVIDER_STATE);
  MENTION_STATE.tt(AT, MENTION_DIVIDER_STATE); // Mention _ trailing stash plus syms

  var MENTION_DIVIDER_SYMS_STATE = MENTION_DIVIDER_STATE.tt(UNDERSCORE);
  MENTION_DIVIDER_SYMS_STATE.tt(UNDERSCORE, MENTION_DIVIDER_SYMS_STATE); // Once we get a word token, mentions can start up again

  MENTION_DIVIDER_STATE.tt(DOMAIN, MENTION_STATE);
  MENTION_DIVIDER_STATE.tt(LOCALHOST, MENTION_STATE);
  MENTION_DIVIDER_STATE.tt(TLD, MENTION_STATE);
  MENTION_DIVIDER_STATE.tt(NUM, MENTION_STATE);
  MENTION_DIVIDER_SYMS_STATE.tt(DOMAIN, MENTION_STATE);
  MENTION_DIVIDER_SYMS_STATE.tt(LOCALHOST, MENTION_STATE);
  MENTION_DIVIDER_SYMS_STATE.tt(TLD, MENTION_STATE);
  MENTION_DIVIDER_SYMS_STATE.tt(NUM, MENTION_STATE);
};
registerPlugin('mention', mention);

export { mention };