ilkkao/mas

//
//   Copyright 2016 Ilkka Oksanen <iao@iki.fi>
//
//   Licensed under the Apache License, Version 2.0 (the "License");
//   you may not use this file except in compliance with the License.
//   You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
//   Unless required by applicable law or agreed to in writing,
//   software distributed under the License is distributed on an "AS
//   IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
//   express or implied.  See the License for the specific language
//   governing permissions and limitations under the License.
//

'use strict';

const TYPES = {
  mas: 'm',
  irc: 'i'
};

export default class UserGId {
  static create(params) {
    if (!params) {
      return null;
    }

    let userGId = null;

    if (typeof params === 'string') {
      const type = Object.keys(TYPES).find(validType => TYPES[validType] === params[0]);

      if (!type) {
        return null;
      }

      let id;

      if (type === 'mas') {
        id = parseInt(params.substring(1));
      } else if (type === 'irc') {
        id = params.substring(1);
      }

      userGId = new this({ id, type });
    } else {
      userGId = new this(params);
    }

    return userGId.valid ? userGId : null;
  }

  id: any;
  type: string;

  constructor({ id, type }) {
    this.id = id;
    this.type = type;
  }

  get valid() {
    if (this.type === 'mas') {
      return parseInt(this.id) === this.id && this.id > 0;
    }
    if (this.type === 'irc') {
      return this.id === 0 || this.id.length > 0;
    }

    return false;
  }

  get isMASUser() {
    return this.type === 'mas';
  }

  get isIrcUser() {
    return this.type === 'irc';
  }

  toString() {
    return `${TYPES[this.type]}${this.id}`;
  }

  equals(otherUserGId) {
    return this.id === otherUserGId.id && this.type === otherUserGId.type;
  }
}