/**
 *
 * User: Martin Donnelly
 * Date: 2016-05-24
 * Time: 14:21
 *
 */

/* global   */
/* jshint browser: true , devel: true*/

/**
 *
 * @constructor
 */
var MANUFACTUREDECODER = function() {
  'use strict';

  this.getManID = function(data) {
    return ('0000' + ((data[1] << 8) | data[0]).toString(16)).slice(-4).toUpperCase();
  };

  this.decodeIbeacon = function(data) {

    // https://support.kontakt.io/hc/en-gb/articles/201492492-iBeacon-advertising-packet-structure
    var bin = data;
    var obj = { msg: '(iBeacon)'};
    // Obj.manID = ('0000' + ((bin[1] << 8) | bin[0]).toString(16)).slice(-4);
    obj.manID = this.getManID(bin);
    var uuid = [];
    if (bin[2] === 2) {
      uuid.push(bin[4].toString(16) + bin[5].toString(16) + bin[6].toString(16) + bin[7].toString(16)) ;

      uuid.push(bin[8].toString(16) + bin[9].toString(16)) ;
      uuid.push(bin[10].toString(16) + bin[11].toString(16)) ;
      uuid.push(bin[12].toString(16) + bin[13].toString(16)) ;

      var p4 = bin[14].toString(16);
      p4 = p4 + bin[15].toString(16);
      p4 = p4 + bin[16].toString(16);
      p4 = p4 + bin[17].toString(16);
      p4 = p4 + bin[18].toString(16);
      p4 = p4 + bin[19].toString(16);

      uuid.push(p4);
      obj.uuid = uuid.join('-');
    }

    if (bin[2] === 9) {
      // This looks like an ip address?
      var ipaddy = [];
      ipaddy.push(bin[6]);
      ipaddy.push(bin[7]);
      ipaddy.push(bin[8]);
      ipaddy.push(bin[9]);

      obj.ipaddress = ipaddy.join('.');
      obj.msg = obj.msg + ' IP:' + obj.ipaddress;
    }

    if (bin[2] === 12) {


      var output = bin.map(function(i) {

                          return ('0000' + i.toString(16)).slice(-2) + '';
                        });

      obj.secureUUID = output.join('');

    }

    var signedByte = new Int8Array(1);
    signedByte[0] = bin[24];
    obj.txpower = signedByte[0];

    return obj;
  };


  this.decodeSiliconLabsSensorPuck = function(data) {
    var bin = data;
    var obj = {data: {}};
    obj.manID = this.getManID(bin);
    obj.a = (bin[3] << 8) | bin[2];
    obj.b = (bin[5] << 8) | bin[4];
    obj.data.humidity = (bin[7] << 8) | bin[6];
    obj.data.temp = (bin[9] << 8) | bin[8];
    obj.c = (bin[11] << 8) | bin[10];
    obj.d = (bin[13] << 8) | bin[12];

    obj.msg = 'Humidity: ' + (obj.data.humidity / 10) + ', temp: ' + (obj.data.temp / 10);

    return obj;
  };


  this.decodeSansible = function(data) {
    var bin = data;
    var obj = {data: {}};
    obj.manID = this.getManID(bin);

    obj.data.p1 = ((bin[2] << 16) | bin[3] << 8 | bin[4]);
    obj.data.p2 = ((bin[5] << 16) | bin[6] << 8 | bin[7]);

    obj.msg = 'Left: ' + (obj.data.p1 / 100) + ' hPa, Right: ' + (obj.data.p2 / 100) + ' hPa';
    return obj;

  };


};