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 resources = require('./resources');

const _insightApiBaseAddressMap = {
    bch: 'http://blockdozer.com/insight-api/',
    dcr: 'https://mainnet.decred.org/api/',
    dgb: 'https://digiexplorer.info/api/',
    kmd: 'http://kmd.explorer.supernet.org/api/',
    rdd: 'http://live.reddcoin.com/api/'
};

class InsightClient extends ApiClientBase {
    constructor(network) {
        const formattedNetwork = network.trim().toLowerCase();
        if (!_insightApiBaseAddressMap.hasOwnProperty(formattedNetwork)) {
            throw new Error(resources.generateUnsupportedNetworkMessage(network));
        }
        
        super(_insightApiBaseAddressMap[formattedNetwork]);
    }
    
    getAccount(accountAddress) {
        return this.executeRequest(`addr/${accountAddress}`, 'Account');
    }
    
    getBlockByNumberOrHash(blockId) {
        //A block hash may be cast to a valid (different) block height
        // by the API so try blockId as a block hash first.
        return this.executeRequest(`block/${blockId}`, 'Block').catch(() => this.executeRequest(`block-index/${blockId}`, 'Block'))
        .then((res) => {
            if (res.hasOwnProperty('blockHash')) {
                return this.executeRequest(`block/${res.blockHash}`, 'Block');
            }
            
            return res;
        }).then((res) => {
            if (res.hash !== blockId && res.height.toString() !== blockId) {
                return Promise.reject(resources.blockNotFoundMessage);
            }
            
            return res;
        });
    }
    
    getNetworkInfo() {
        return this.executeRequest('status?q=getInfo', 'Network Info');
    }
    
    getTransaction(transactionHash) {
        return this.executeRequest(`tx/${transactionHash}`, 'Transaction');
    }
}

module.exports = InsightClient;