BikBikBikBikBik/blocke

/*
Copyright (C) 2017 BikBikBikBikBik

This file is part of blocke.

blocke 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.

blocke 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 blocke.  If not, see <http://www.gnu.org/licenses/>.
*/
const ApiClientBase = require('./api-client-base');
const _ = require('underscore');

class GameCreditsClient extends ApiClientBase {
    constructor() {
        super('http://blockexplorer.gamecredits.com/api/');
    }
    
    getAccount(accountAddress) {
        return this.executeRequest(`addresses/${accountAddress}/balance`, 'Account').then((res) => ({ address: accountAddress, balance: res }));
    }
    
    getBlockByNumberOrHash(blockId) {
        return this.executeRequest(`blocks?height=${blockId}`, 'Block').catch(() => this.executeRequest(`blocks/${blockId}`, 'Block'));
    }
    
    getNetworkInfo() {
        return this.executeRequest('network/info', 'Network Info');
    }
    
    getTransaction(transactionHash, fetchVinAddresses = true) {
        return this.executeRequest(`transactions/${transactionHash}`, 'Transaction').then((res) => {
            if (fetchVinAddresses === true) {
                return this.updateTransactionInputAddresses(res);
            }
            
            return res;
        });
    }
    
    updateTransactionInputAddresses(transaction) {
        const vinTransactions = _.filter(transaction.vin, (input) => typeof(input.prev_txid) === 'string');
        const vinTransactionPromises = _.map(vinTransactions, (input) => this.getTransaction(input.prev_txid, false));
        
        return Promise.all(vinTransactionPromises).then((res) => {
            _.each(res, (tx) => {
                const sourceVin = _.find(vinTransactions, (vin) => vin.prev_txid === tx.txid);
                
                sourceVin.address = tx.vout[sourceVin.vout_index].addresses[0];
                sourceVin.value = tx.vout[sourceVin.vout_index].value;
            });
            
            return transaction;
        });
    }
}

module.exports = new GameCreditsClient();