/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

/* global mui, bt_company_ids, ble, LocalFileSystem, capabilityManager, MANUFACTUREDECODER */

var app = {
  stop: false,
  log: {},
  activeServices: {},

  list: {},
  foundDevices: {},

  manufactureDecoder: new MANUFACTUREDECODER(),
  // Application Constructor
  initialize: function() {
    this.bindEvents();
  },

  arrayBufferToIntArray: function(buffer) {
      var result;

      if (buffer) {
        var typedArray = new Uint8Array(buffer);
        result = [];
        for (var i = 0; i < typedArray.length; i++) {
          result[i] = typedArray[i];
        }
      }

      return result;
    },

  parseAdvertisingData: function(bytes) {
    var length, type, data, i = 0, advertisementData = {};

    while (length !== 0) {

      length = bytes[i] & 0xFF;
      i++;

      type = bytes[i] & 0xFF;
      i++;

      data = bytes.slice(i, i + length - 1); // Length includes type byte, but not length byte
      i += length - 2;  // Move to end of data
      i++;

      advertisementData[type] = data;
    }

    return advertisementData;
  },
  handle255: function(buffer) {
    'use strict';

    var company;
    var cid;
    var manID;
    var bin = buffer;
    var decoded = {};

    console.log('Block255', bin);
/*
    var manSpec = bin.map(function(i) {

      return i.toString(16) + ' ';
    });

    console.log('manSpec: ', manSpec);
*/
    manID = app.manufactureDecoder.getManID(bin);

    console.log('ManID:', manID);

    cid = '0x' + manID;

    company = bt_company_ids.find(cid);

    switch (manID) {
      case '004c': {
        decoded = app.manufactureDecoder.decodeIbeacon(bin);
        decoded.company = company;
        break;
      }
      case '1235': {
        decoded = app.manufactureDecoder.decodeSiliconLabsSensorPuck(bin);
        decoded.company = company;
        break;

      }
      case '0060': {
        decoded = app.manufactureDecoder.decodeSansible(bin);
        decoded.company = company;
        break;

      }
      default: {
        console.log('Unknown manID: ', manID);
        decoded = {company: company};

      }
    }
    return decoded;
  },
  makeHexBuffer: function(buffer) {
    'use strict';
    var hexBuffer = buffer.map(function(i) {
              return ('00' + i.toString(16)).slice(-2) + ',';
            });
    return hexBuffer;
  },
  makeChars: function(buffer) {
    'use strict';
    var output = buffer.map(function(i) {

              return String.fromCharCode(i);
            });

    return output;
  },
  buildNewDeviceResultPanel: function(device) {
    'use strict';
    var newPanel, newRow;
    var otherData = device.otherData;
    var newId = 'd-' + device.id.replace(/:/g, '');
    var title = device.hasOwnProperty('name') ? device.name : '*** Unknown';

    newPanel = $('<div>',{id: newId,class: 'mui-panel deviceRow', style: 'min-height:75px;'});


    newRow = $('<div>',{class: 'mui-row'});

    newRow.append($('<div>',{class: 'mui-col-xs-12 mui--text-title',text: device.id}));

    newPanel.append(newRow);


    newRow = $('<div>',{class: 'mui-row'});
    newRow.append($('<div>',{class: 'mui-col-xs-3',text: 'Title:'}));
    newRow.append($('<div>',{class: 'mui-col-xs-3',text: title}));
    newRow.append($('<div>',{class: 'mui-col-xs-3',text: 'RSSI:'}));
    newRow.append($('<div>',{class: 'mui-col-xs-3',text: device.rssi}));

    newPanel.append(newRow);

    if (typeof otherData !== 'undefined' && otherData !== null) {
      if (otherData.hasOwnProperty('msg')) {
        newRow = $('<div>',{class: 'mui-row'});
        newRow.append($('<div>',{class: 'mui-col-xs-3',text: 'Data:'}));
        newRow.append($('<div>',{class: 'mui-col-xs-8',text: otherData.msg}));
        newPanel.append(newRow);
      }
    }

    return newPanel;
  },
  extractPData: function(prev) {
    'use strict';

    if (typeof prev === 'undefined' || prev === null) {
      return {};
    }
    return prev.pData;

  },

  processPData: function(newData, oldData) {
    'use strict';
    var output = {};
    var wa = [];
    if (newData.data === null) {
      return {};
    }

    for (var key in newData.data) {

      if (newData.data.hasOwnProperty(key)) {

        if (Object.keys(oldData).indexOf(key) !== -1) {
          wa = oldData[key];
        }

        if (wa.length === 99) {
          wa = wa.slice(1);
        }

        wa.push(newData.data[key]);

        output[key] = wa;
      }
    }

    return output;
  },
  doScan: function(mode) {
    'use strict';

    $('#ripple').show();
    if (mode !== 2) {
      $('#tbody').empty();
    }

    var otherData = null;
    var msgText = '';
    ble.startScan([], function(device) {
      var parsed;
      var hexBuffer;
      var advertBuffer;
      var newTR;
      var newId;
      var _device = device;
      var $newID;

      _device.pData = {};

      otherData = null;
      msgText = '';

      newId = 'd-' + _device.id.replace(/:/g, '');

      this.list[newId] = _device.id;

      if (_device.hasOwnProperty('advertising')) {

        advertBuffer = app.arrayBufferToIntArray(_device.advertising);

        hexBuffer = app.makeHexBuffer(advertBuffer);

        parsed = app.parseAdvertisingData(advertBuffer);

        // Console.log(parsed);

        if (parsed.hasOwnProperty('9')) {

          var name = app.makeChars(parsed['9']);

          _device.name = name.join('');
          console.log('Name: ', name.join(''));

        }

        if (parsed.hasOwnProperty('255')) {

          otherData = app.handle255(parsed['255']);
          console.log(otherData);
          _device.otherData = otherData;
        }
        _device.advertBuffer = advertBuffer;
        _device.hexBuffer = hexBuffer;
        _device.parsed = parsed;
      }

      newTR = app.buildNewDeviceResultPanel(device);

      $newID = $('div#' + newId);
      if ($newID.length > 0) {
        $newID.replaceWith(newTR);
      } else {
        $('#scanResults').append(newTR);
      }

      // $('#output').append(JSON.stringify(device) + '<br/>');

      var oldPdata = app.extractPData(app.log[newId]);

      var newPData = app.processPData(otherData, oldPdata);

      //  Console.log(newPData);
      _device.pData = newPData;

      app.log[newId] = _device;
      app.foundDevices[newId] = _device;

      //  Console.log(JSON.stringify(_device));

    }.bind(this), function(e) {
      console.error(e);
    });

    var _t = [5000,60000,200][mode];

    setTimeout(ble.stopScan,
      _t,
      function() { console.log('Scan complete');

        if (mode === 1) {
          app.saveLog();
          $('#ripple').hide();
        }

        if (mode === 2) {
          if (!app.stop) {
            setTimeout(function() {
                        app.doScan(2);
                      }.bind(this), 200);
          } else {
            app.saveLog();
            $('#ripple').hide();
          }

        }
      },
      function() { console.log('stopScan failed');
        $('#ripple').hide();
      });

  },
  writeFile: function(fileEntry, dataObj) {
      // Create a FileWriter object for our FileEntry (log.txt).
      fileEntry.createWriter(function(fileWriter) {

          fileWriter.onwriteend = function() {
              console.log('Successful file write...');
              //  ReadFile(fileEntry);
            };

          fileWriter.onerror = function(e) {
              console.error('Failed file write: ' + e.toString());
            };

          // If data object is not passed in,
          // create a new Blob instead.
          if (!dataObj) {
            dataObj = new Blob(['some file data'], { type: 'text/plain' });
          }

          fileWriter.write(dataObj);
        });
    },
  saveLog: function() {
    'use strict';
    var dt = new Date().toISOString().replace(/:|-/g,'').replace(/(\.\w+)/g,'');
    var payload = JSON.stringify(app.log);
    var filename = 'sensortoy-' + dt + '.json';

    // Var dataObj = new Blob(payload, { type: 'text/plain' });
    window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, function(fs) {

        console.log('file system open: ' + fs.name);
        fs.root.getFile(filename, { create: true, exclusive: false }, function(fileEntry) {

            console.log('fileEntry is file?' + fileEntry.isFile.toString());
            // FileEntry.name == 'someFile.txt'
            // fileEntry.fullPath == '/someFile.txt'
            console.log('Path: ', fileEntry.fullPath);
            app.writeFile(fileEntry, payload);

            app.log = [];

          }, app.onError);

      }, app.onError);
  },
  forceStop: function() {
    'use strict';
    app.stop = true;
    $('#scan').show();
    $('#stop').hide();
  },

  // Bind Event Listeners
  //
  // Bind any events that are required on startup. Common events are:
  // 'load', 'deviceready', 'offline', and 'online'.
  bindEvents: function() {
    var self = this;
    document.addEventListener('deviceready', this.onDeviceReady, false);
    $('#scan').on('click', function() {
      'use strict';
      this.stop = false;
      this.doScan(2);
      $('#scan').hide();
      $('#stop').show();
    }.bind(this));

    $('#stop').on('click', function() {
          'use strict';
          app.forceStop();

        }.bind(this));

    $('#longScan').on('click', function() {
      'use strict';
      this.doScan(1);
    }.bind(this));

    $('#scanResults').on('click', 'div.mui-panel.deviceRow', function() {
      'use strict';
      var tID = $(this).context.id;
      var id = self.list[tID];

      console.log(tID, id);

      app.forceStop();
      self.connect(id);
    });

  },
  addTab: function(tID) {
    var appTabs = $('#app-tabs');
    var panes = $('#tab-panes');

    var paneID = 'pane-' + tID;

    var _device = app.foundDevices[tID];
    var _name = _device.name || _device.id;

    console.log('Found:', _device);

    $('<div>', {class: 'mui-tabs__pane', id: paneID}).appendTo(panes);


    var li = $('<li>').append($('<a>',{'data-mui-toggle': 'tab', 'data-mui-controls': paneID, text: _name }));

    appTabs.append(li);

    return paneID;

  },

  // Deviceready Event Handler
  //
  // The scope of 'this' is the event. In order to call the 'receivedEvent'
  // function, we must explicitly call 'app.receivedEvent(...);'
  onDeviceReady: function() {

  },

  doAnimate: function() {
    'use strict';
    // Console.log('Animate..');
    for (var t = 0; t < app.activeServices.length;t++) {
      app.activeServices[t].animateGraph();
    }

    window.requestAnimFrame(app.doAnimate.bind(this));
  },
  connect: function(deviceId) {

    $('#results').slideUp();
    console.log('Connect to ', deviceId);

    var tID = 'd-' + deviceId.replace(/:/g, '');

    var onConnect = function(a) {
      var services = [];

      services = a.services;


      console.log('Searching services for ', tID);
      var usedServices = [];

      var target = app.addTab(tID);

      var _params = {
            deviceID: deviceId,
            target: target
          };

      for (var t = 0; t < services.length; t++) {

        var ident = services[t].toUpperCase();

        var SERVICE = capabilityManager.discover(ident);

        if (SERVICE !== null) {

          var newService = new SERVICE(_params);
          newService.startService();
          usedServices.push(newService);
        } else {
          console.error('Unknown service: ', ident);
        }

      }

      app.activeServices[tID] = usedServices;

      mui.tabs.activate(target);
      window.requestAnimFrame(app.doAnimate.bind(this));
    };

    if (!app.activeServices.hasOwnProperty(tID)) {

      ble.connect(deviceId, onConnect, function(e) {
            'use strict';
            console.log(e);
            console.error(e);

          });

    }

  }, onError: function(reason) {
    console.error('ERROR: ' + reason); // Real apps should use notification.alert
  }, updateGyro: function(g) {
    'use strict';

  }
};

window.requestAnimFrame = (function() {
  return window.requestAnimationFrame       ||
          window.webkitRequestAnimationFrame ||
          window.mozRequestAnimationFrame    ||
          function(callback) {
            window.setTimeout(callback, 1000 / 60);
          };
})();

app.initialize();