'use strict';

const bitcoin = require("bitcoin"),
      fs = require("fs");

var zaddress = "";

var client = new bitcoin.Client({
  host: 'localhost',
  port: 8232,
  user: 'bitcoin',
  pass: 'local321',
  timeout: 30000
});

function getMemo () {
  client.cmd('z_listreceivedbyaddress', zaddress, 0, function(err, data, resHeaders){
    if (err) return console.log(err);
    var memos = [];
    for (var i in data) {
      var text = hex2a(data[i].memo.replace(/^0+|0+$/g, ""));
      memos.push({
        id: i,
        memo: text
      });
    }
    fs.writeFile('memos.txt', JSON.stringify(memos), function (err) {
      if (err) throw err;
      console.log('Added Memos')
    })
    console.log('Got memos: '+ JSON.stringify(memos)+ '\nAdding to memos.txt')
  })
}

setInterval(getMemo, 60000);

function hex2a(hexx) {
    var hex = hexx.toString();//force conversion
    var str = '';
    for (var i = 0; i < hex.length; i += 2)
        str += String.fromCharCode(parseInt(hex.substr(i, 2), 16));
    return str;
}