openethereum/js/src/shared/contracts/githubhint.js

// Copyright 2015-2017 Parity Technologies (UK) Ltd.
// This file is part of Parity.

// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with Parity.  If not, see <http://www.gnu.org/licenses/>.

export default class GithubHint {
  constructor (api, registry) {
    this._api = api;
    this._registry = registry;
    this._instance = null;

    this.getInstance();
  }

  getContract () {
    return this._registry.getContract('githubhint');
  }

  getInstance () {
    if (this._instance) {
      return Promise.resolve(this._instance);
    }

    return this.getContract().then((contract) => {
      this._instance = contract.instance;
      return this._instance;
    });
  }

  getEntry (entryId) {
    return this.getInstance().then((instance) => {
      return instance.entries.call({}, [entryId]);
    });
  }
}