/*
    This file is part of web3.js.

    web3.js is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    web3.js 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 Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public License
    along with web3.js.  If not, see <http://www.gnu.org/licenses/>.
*/
/**
 * @file index.js
 * @author Fabian Vogelsteller <fabian@ethereum.org>
 * @date 2017
 */
const requestManager = require("web3-core-requestmanager");
const extend = require("./extend");
const packageInit = (pkg, args) => {
    args = Array.prototype.slice.call(args);
    if (!pkg) {
        throw new Error('You need to instantiate using the "new" keyword.');
    }
    // make property of pkg._provider, which can properly set providers
    Object.defineProperty(pkg, 'currentProvider', {
        get: () => {
            return pkg._provider;
        },
        set: (value) => {
            return pkg.setProvider(value);
        },
        enumerable: true,
        configurable: true
    });
    // inherit from parent package or create a new RequestManager
    if (args[0] && args[0]._requestManager) {
        pkg._requestManager = args[0]._requestManager;
    }
    else {
        pkg._requestManager = new requestManager.Manager(args[0], args[1]);
    }
    // add givenProvider
    pkg.givenProvider = requestManager.Manager.givenProvider;
    pkg.providers = requestManager.Manager.providers;
    pkg._provider = pkg._requestManager.provider;
    // add SETPROVIDER function (don't overwrite if already existing)
    if (!pkg.setProvider) {
        pkg.setProvider = (provider, net) => {
            pkg._requestManager.setProvider(provider, net);
            pkg._provider = pkg._requestManager.provider;
            return true;
        };
    }
    pkg.setRequestManager = (manager) => {
        pkg._requestManager = manager;
        pkg._provider = manager.provider;
    };
    // attach batch request creation
    pkg.BatchRequest = requestManager.BatchManager.bind(null, pkg._requestManager);
    // attach extend function
    pkg.extend = extend(pkg);
};
const addProviders = (pkg) => {
    pkg.givenProvider = requestManager.Manager.givenProvider;
    pkg.providers = requestManager.Manager.providers;
};
module.exports = {
    packageInit,
    addProviders
};