'use strict'


let util = require('util');


module.exports.info = 'creating';

let id_array = [];
let txnPerBatch;
let bc, contx;
let argument_part1 = '{\"id\":\"';
let argument_part2 = '\",\"user\":\"admin\"}';

module.exports.init = function(blockchain, context, args) {
    console.log("These are the arguments: \n",args);
    // if (args.length != 0 || args == null) {
    //     return Promise.reject(new Error('create.js - no arguments required'));
    // }
    if(!args.hasOwnProperty('txnPerBatch')) {
        args.txnPerBatch = 1;
    }
    
    txnPerBatch = args.txnPerBatch;

    bc = blockchain;
    contx = context;
    return Promise.resolve();
};

function generateId () {
    //generates a random string
    let id = Math.random().toString(36).substring(2, 6) + Math.random().toString(36).substring(2, 6);
    //check if the id is unique in the array
    while (id_array.includes(id)){
        id = Math.random().toString(36).substring(2, 6) + Math.random().toString(36).substring(2, 6);
    }
    return id;
}

function generateWorkLoad() {
    let workload = [];
    for (let i = 0; i < txnPerBatch; i++) {
        let id = generateId();
        id_array.push(id);
        let arguments = argument_part1 + id + argument_part2;
        if (bc.bcType == 'fabric-ccp'){
            workload.push({
                chaincodeFunction: 'create',
                chaincodeArguments: [arguments],
            });            
        } else {
            workload.push({
                'verb': 'create',
                arguments
            });
        }
    }
    return workload;
}

module.exports.run = function() {
    let args = generateWorkLoad();
    //console.log(args);
    //console.log(contx);
    return bc.invokeSmartContract(contx,'testcc','v1.12',args,100);
};

module.exports.end = function() {
    return Promise.resolve();
};

module.exports.id_array = id_array;