(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
  typeof define === 'function' && define.amd ? define(['exports'], factory) :
  (factory((global.bsync = global.bsync || {})));
}(this, (function (exports) { 'use strict';

var domain;

// This constructor is used to store event handlers. Instantiating this is
// faster than explicitly calling `Object.create(null)` to get a "clean" empty
// object (tested with v8 v4.9).
function EventHandlers() {}
EventHandlers.prototype = Object.create(null);

function EventEmitter() {
  EventEmitter.init.call(this);
}
EventEmitter.usingDomains = false;

EventEmitter.prototype.domain = undefined;
EventEmitter.prototype._events = undefined;
EventEmitter.prototype._maxListeners = undefined;

// By default EventEmitters will print a warning if more than 10 listeners are
// added to it. This is a useful default which helps finding memory leaks.
EventEmitter.defaultMaxListeners = 10;

EventEmitter.init = function() {
  this.domain = null;
  if (EventEmitter.usingDomains) {
    // if there is an active domain, then attach to it.
    if (domain.active && !(this instanceof domain.Domain)) {
      this.domain = domain.active;
    }
  }

  if (!this._events || this._events === Object.getPrototypeOf(this)._events) {
    this._events = new EventHandlers();
    this._eventsCount = 0;
  }

  this._maxListeners = this._maxListeners || undefined;
};

// Obviously not all Emitters should be limited to 10. This function allows
// that to be increased. Set to zero for unlimited.
EventEmitter.prototype.setMaxListeners = function setMaxListeners(n) {
  if (typeof n !== 'number' || n < 0 || isNaN(n))
    throw new TypeError('"n" argument must be a positive number');
  this._maxListeners = n;
  return this;
};

function $getMaxListeners(that) {
  if (that._maxListeners === undefined)
    return EventEmitter.defaultMaxListeners;
  return that._maxListeners;
}

EventEmitter.prototype.getMaxListeners = function getMaxListeners() {
  return $getMaxListeners(this);
};

// These standalone emit* functions are used to optimize calling of event
// handlers for fast cases because emit() itself often has a variable number of
// arguments and can be deoptimized because of that. These functions always have
// the same number of arguments and thus do not get deoptimized, so the code
// inside them can execute faster.
function emitNone(handler, isFn, self) {
  if (isFn)
    handler.call(self);
  else {
    var len = handler.length;
    var listeners = arrayClone(handler, len);
    for (var i = 0; i < len; ++i)
      listeners[i].call(self);
  }
}
function emitOne(handler, isFn, self, arg1) {
  if (isFn)
    handler.call(self, arg1);
  else {
    var len = handler.length;
    var listeners = arrayClone(handler, len);
    for (var i = 0; i < len; ++i)
      listeners[i].call(self, arg1);
  }
}
function emitTwo(handler, isFn, self, arg1, arg2) {
  if (isFn)
    handler.call(self, arg1, arg2);
  else {
    var len = handler.length;
    var listeners = arrayClone(handler, len);
    for (var i = 0; i < len; ++i)
      listeners[i].call(self, arg1, arg2);
  }
}
function emitThree(handler, isFn, self, arg1, arg2, arg3) {
  if (isFn)
    handler.call(self, arg1, arg2, arg3);
  else {
    var len = handler.length;
    var listeners = arrayClone(handler, len);
    for (var i = 0; i < len; ++i)
      listeners[i].call(self, arg1, arg2, arg3);
  }
}

function emitMany(handler, isFn, self, args) {
  if (isFn)
    handler.apply(self, args);
  else {
    var len = handler.length;
    var listeners = arrayClone(handler, len);
    for (var i = 0; i < len; ++i)
      listeners[i].apply(self, args);
  }
}

EventEmitter.prototype.emit = function emit(type) {
  var er, handler, len, args, i, events, domain;
  var needDomainExit = false;
  var doError = (type === 'error');

  events = this._events;
  if (events)
    doError = (doError && events.error == null);
  else if (!doError)
    return false;

  domain = this.domain;

  // If there is no 'error' event listener then throw.
  if (doError) {
    er = arguments[1];
    if (domain) {
      if (!er)
        er = new Error('Uncaught, unspecified "error" event');
      er.domainEmitter = this;
      er.domain = domain;
      er.domainThrown = false;
      domain.emit('error', er);
    } else if (er instanceof Error) {
      throw er; // Unhandled 'error' event
    } else {
      // At least give some kind of context to the user
      var err = new Error('Uncaught, unspecified "error" event. (' + er + ')');
      err.context = er;
      throw err;
    }
    return false;
  }

  handler = events[type];

  if (!handler)
    return false;

  var isFn = typeof handler === 'function';
  len = arguments.length;
  switch (len) {
    // fast cases
    case 1:
      emitNone(handler, isFn, this);
      break;
    case 2:
      emitOne(handler, isFn, this, arguments[1]);
      break;
    case 3:
      emitTwo(handler, isFn, this, arguments[1], arguments[2]);
      break;
    case 4:
      emitThree(handler, isFn, this, arguments[1], arguments[2], arguments[3]);
      break;
    // slower
    default:
      args = new Array(len - 1);
      for (i = 1; i < len; i++)
        args[i - 1] = arguments[i];
      emitMany(handler, isFn, this, args);
  }

  if (needDomainExit)
    domain.exit();

  return true;
};

function _addListener(target, type, listener, prepend) {
  var m;
  var events;
  var existing;

  if (typeof listener !== 'function')
    throw new TypeError('"listener" argument must be a function');

  events = target._events;
  if (!events) {
    events = target._events = new EventHandlers();
    target._eventsCount = 0;
  } else {
    // To avoid recursion in the case that type === "newListener"! Before
    // adding it to the listeners, first emit "newListener".
    if (events.newListener) {
      target.emit('newListener', type,
                  listener.listener ? listener.listener : listener);

      // Re-assign `events` because a newListener handler could have caused the
      // this._events to be assigned to a new object
      events = target._events;
    }
    existing = events[type];
  }

  if (!existing) {
    // Optimize the case of one listener. Don't need the extra array object.
    existing = events[type] = listener;
    ++target._eventsCount;
  } else {
    if (typeof existing === 'function') {
      // Adding the second element, need to change to array.
      existing = events[type] = prepend ? [listener, existing] :
                                          [existing, listener];
    } else {
      // If we've already got an array, just append.
      if (prepend) {
        existing.unshift(listener);
      } else {
        existing.push(listener);
      }
    }

    // Check for listener leak
    if (!existing.warned) {
      m = $getMaxListeners(target);
      if (m && m > 0 && existing.length > m) {
        existing.warned = true;
        var w = new Error('Possible EventEmitter memory leak detected. ' +
                            existing.length + ' ' + type + ' listeners added. ' +
                            'Use emitter.setMaxListeners() to increase limit');
        w.name = 'MaxListenersExceededWarning';
        w.emitter = target;
        w.type = type;
        w.count = existing.length;
        emitWarning(w);
      }
    }
  }

  return target;
}
function emitWarning(e) {
  typeof console.warn === 'function' ? console.warn(e) : console.log(e);
}
EventEmitter.prototype.addListener = function addListener(type, listener) {
  return _addListener(this, type, listener, false);
};

EventEmitter.prototype.on = EventEmitter.prototype.addListener;

EventEmitter.prototype.prependListener =
    function prependListener(type, listener) {
      return _addListener(this, type, listener, true);
    };

function _onceWrap(target, type, listener) {
  var fired = false;
  function g() {
    target.removeListener(type, g);
    if (!fired) {
      fired = true;
      listener.apply(target, arguments);
    }
  }
  g.listener = listener;
  return g;
}

EventEmitter.prototype.once = function once(type, listener) {
  if (typeof listener !== 'function')
    throw new TypeError('"listener" argument must be a function');
  this.on(type, _onceWrap(this, type, listener));
  return this;
};

EventEmitter.prototype.prependOnceListener =
    function prependOnceListener(type, listener) {
      if (typeof listener !== 'function')
        throw new TypeError('"listener" argument must be a function');
      this.prependListener(type, _onceWrap(this, type, listener));
      return this;
    };

// emits a 'removeListener' event iff the listener was removed
EventEmitter.prototype.removeListener =
    function removeListener(type, listener) {
      var list, events, position, i, originalListener;

      if (typeof listener !== 'function')
        throw new TypeError('"listener" argument must be a function');

      events = this._events;
      if (!events)
        return this;

      list = events[type];
      if (!list)
        return this;

      if (list === listener || (list.listener && list.listener === listener)) {
        if (--this._eventsCount === 0)
          this._events = new EventHandlers();
        else {
          delete events[type];
          if (events.removeListener)
            this.emit('removeListener', type, list.listener || listener);
        }
      } else if (typeof list !== 'function') {
        position = -1;

        for (i = list.length; i-- > 0;) {
          if (list[i] === listener ||
              (list[i].listener && list[i].listener === listener)) {
            originalListener = list[i].listener;
            position = i;
            break;
          }
        }

        if (position < 0)
          return this;

        if (list.length === 1) {
          list[0] = undefined;
          if (--this._eventsCount === 0) {
            this._events = new EventHandlers();
            return this;
          } else {
            delete events[type];
          }
        } else {
          spliceOne(list, position);
        }

        if (events.removeListener)
          this.emit('removeListener', type, originalListener || listener);
      }

      return this;
    };

EventEmitter.prototype.removeAllListeners =
    function removeAllListeners(type) {
      var listeners, events;

      events = this._events;
      if (!events)
        return this;

      // not listening for removeListener, no need to emit
      if (!events.removeListener) {
        if (arguments.length === 0) {
          this._events = new EventHandlers();
          this._eventsCount = 0;
        } else if (events[type]) {
          if (--this._eventsCount === 0)
            this._events = new EventHandlers();
          else
            delete events[type];
        }
        return this;
      }

      // emit removeListener for all listeners on all events
      if (arguments.length === 0) {
        var keys = Object.keys(events);
        for (var i = 0, key; i < keys.length; ++i) {
          key = keys[i];
          if (key === 'removeListener') continue;
          this.removeAllListeners(key);
        }
        this.removeAllListeners('removeListener');
        this._events = new EventHandlers();
        this._eventsCount = 0;
        return this;
      }

      listeners = events[type];

      if (typeof listeners === 'function') {
        this.removeListener(type, listeners);
      } else if (listeners) {
        // LIFO order
        do {
          this.removeListener(type, listeners[listeners.length - 1]);
        } while (listeners[0]);
      }

      return this;
    };

EventEmitter.prototype.listeners = function listeners(type) {
  var evlistener;
  var ret;
  var events = this._events;

  if (!events)
    ret = [];
  else {
    evlistener = events[type];
    if (!evlistener)
      ret = [];
    else if (typeof evlistener === 'function')
      ret = [evlistener.listener || evlistener];
    else
      ret = unwrapListeners(evlistener);
  }

  return ret;
};

EventEmitter.listenerCount = function(emitter, type) {
  if (typeof emitter.listenerCount === 'function') {
    return emitter.listenerCount(type);
  } else {
    return listenerCount.call(emitter, type);
  }
};

EventEmitter.prototype.listenerCount = listenerCount;
function listenerCount(type) {
  var events = this._events;

  if (events) {
    var evlistener = events[type];

    if (typeof evlistener === 'function') {
      return 1;
    } else if (evlistener) {
      return evlistener.length;
    }
  }

  return 0;
}

EventEmitter.prototype.eventNames = function eventNames() {
  return this._eventsCount > 0 ? Reflect.ownKeys(this._events) : [];
};

// About 1.5x faster than the two-arg version of Array#splice().
function spliceOne(list, index) {
  for (var i = index, k = i + 1, n = list.length; k < n; i += 1, k += 1)
    list[i] = list[k];
  list.pop();
}

function arrayClone(arr, i) {
  var copy = new Array(i);
  while (i--)
    copy[i] = arr[i];
  return copy;
}

function unwrapListeners(arr) {
  var ret = new Array(arr.length);
  for (var i = 0; i < ret.length; ++i) {
    ret[i] = arr[i].listener || arr[i];
  }
  return ret;
}

function __extends(d, b) {
    for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
    function __() { this.constructor = d; }
    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
}

var ElectronFileHandler = (function (_super) {
    __extends(ElectronFileHandler, _super);
    function ElectronFileHandler(ipcRenderer) {
        _super.call(this);
        this.ipcRenderer = ipcRenderer;
    }
    ElectronFileHandler.prototype.download = function (source, target) {
        var _this = this;
        this.ipcRenderer.once('bsync-download-complete', function () {
            _this.ipcRenderer.removeAllListeners('bsync-download-progress');
            _this.ipcRenderer.removeAllListeners('bsync-download-error');
            _this.emit('complete');
        });
        this.ipcRenderer.on('bsync-download-progress', function (progress) {
            _this.emit('progress', progress);
        });
        this.ipcRenderer.once('bsync-download-error', function (error) {
            _this.ipcRenderer.removeAllListeners('bsync-download-progress');
            _this.ipcRenderer.removeAllListeners('bsync-download-complete');
            _this.emit('error', error);
        });
        this.ipcRenderer.send('bsync-download', {
            source: source,
            target: target
        });
        return this;
    };
    ElectronFileHandler.prototype.cleanup = function (files) {
        var _this = this;
        return new Promise(function (resolve, reject) {
            _this.ipcRenderer.once('bsync-cleanup-complete', function () {
                _this.emit('cleanup-complete');
                resolve();
            });
            _this.ipcRenderer.send('bsync-cleanup', files);
        });
    };
    return ElectronFileHandler;
}(EventEmitter));

var Util = (function () {
    function Util() {
    }
    Util.getNameHash = function (path) {
        for (var r = 0, i = 0; i < path.length; i++) {
            r = (r << 5) - r + path.charCodeAt(i), r &= r;
        }
        return "bsync_" + Math.abs(r);
    };
    /**
     *  index >= 0, localFile is in files
     *  index < 0, localFile is not in files
     */
    Util.getFileIndex = function (files, localFile) {
        for (var i = 0; i < files.length; i++) {
            if (localFile == files[i].target) {
                return i;
            }
        }
        return -1;
    };
    Util.getFilesForCleanup = function (files, localFiles) {
        var filesForCleanup = [];
        for (var _i = 0, localFiles_1 = localFiles; _i < localFiles_1.length; _i++) {
            var localFile = localFiles_1[_i];
            var index = -1;
            index = Util.getFileIndex(files, localFile);
            if (index < 0) {
                filesForCleanup.push(localFile);
            }
            else {
                // splice for performance improvement only
                files.splice(index, 1);
            }
        }
        return filesForCleanup;
    };
    return Util;
}());

var CordovaFileHandler = (function (_super) {
    __extends(CordovaFileHandler, _super);
    function CordovaFileHandler() {
        _super.apply(this, arguments);
    }
    CordovaFileHandler.prototype.triggerFileTransfer = function (source, target) {
        var _this = this;
        var fileTransfer = new window['FileTransfer']();
        fileTransfer.onprogress = function (progress) {
            _this.emit('progress', progress.loaded / progress.total);
        };
        fileTransfer.download(source, target, function (entry) {
            _this.emit('complete', entry);
        }, function (error) {
            _this.emit('error', error);
        }, true);
    };
    CordovaFileHandler.prototype.download = function (source, target) {
        var _this = this;
        if (!window['FileTransfer']) {
            this.emit('error', 'Cordova FileTransfer object undefined');
        }
        window['resolveLocalFileSystemURL'](target, function (entry) {
            entry.getMetadata(function (metadata) {
                if (metadata.size > 0) {
                    _this.emit('complete', entry);
                }
                else {
                    // file empty trigger transfer
                    _this.triggerFileTransfer(source, target);
                }
            }, function () {
                // cannot read metadata trigger transfer
                _this.triggerFileTransfer(source, target);
            });
        }, function () {
            // file not found, so download it
            _this.triggerFileTransfer(source, target);
        });
        return this;
    };
    CordovaFileHandler.prototype.cleanup = function (files, basePath) {
        var _this = this;
        var filesForCleanup = [];
        return new Promise(function (resolve, reject) {
            if (window['resolveLocalFileSystemURL']) {
                window['resolveLocalFileSystemURL'](basePath, function (entry) {
                    var reader = entry.createReader();
                    reader.readEntries(function (entries) {
                        for (var _i = 0, entries_1 = entries; _i < entries_1.length; _i++) {
                            var e = entries_1[_i];
                            if (e && e.isFile) {
                                if (Util.getFileIndex(files, e.name) < 0) {
                                    filesForCleanup.push(e);
                                }
                            }
                        }
                        var index = 0;
                        var error = false;
                        var cleanupError = function (error) {
                            _this.emit('cleanup-error', error);
                            reject();
                            error = true;
                        };
                        var cleanupNext = function () {
                            if (index < filesForCleanup.length && !error) {
                                filesForCleanup[index].remove(cleanupNext, cleanupError);
                                index += 1;
                            }
                            else if (!error) {
                                _this.emit('cleanup-complete', filesForCleanup);
                                resolve();
                            }
                        };
                        cleanupNext();
                    }, function (error) { _this.emit('cleanup-error', error); reject(); });
                });
            }
        });
    };
    return CordovaFileHandler;
}(EventEmitter));

var FileReplicator = (function (_super) {
    __extends(FileReplicator, _super);
    function FileReplicator() {
        _super.call(this);
        this._files = [];
        this._itemValidator = null;
        this._fileHandler = null;
        this._retryTimeout = 100;
        this._retries = 10;
        this._itemKey = "type";
        this._itemValue = "asset";
        this._itemSourceAttribute = "source";
        this._itemTargetAttribute = "target";
        this._targetDirectory = "";
    }
    Object.defineProperty(FileReplicator.prototype, "files", {
        get: function () {
            return this._files;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(FileReplicator.prototype, "fileHandler", {
        get: function () {
            return this._fileHandler;
        },
        set: function (handler) {
            this._fileHandler = handler;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(FileReplicator.prototype, "retryTimeout", {
        set: function (timeout) {
            this._retryTimeout = timeout;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(FileReplicator.prototype, "itemValidator", {
        set: function (validator) {
            this._itemValidator = validator;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(FileReplicator.prototype, "itemKey", {
        get: function () {
            return this._itemKey;
        },
        set: function (key) {
            this._itemKey = key;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(FileReplicator.prototype, "itemValue", {
        get: function () {
            return this._itemValue;
        },
        set: function (value) {
            this._itemValue = value;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(FileReplicator.prototype, "itemSourceAttribute", {
        get: function () {
            return this._itemSourceAttribute;
        },
        set: function (sourceAttribute) {
            this._itemSourceAttribute = sourceAttribute;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(FileReplicator.prototype, "itemTargetAttribute", {
        get: function () {
            return this._itemTargetAttribute;
        },
        set: function (targetAttribute) {
            this._itemTargetAttribute = targetAttribute;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(FileReplicator.prototype, "targetDirectory", {
        get: function () {
            return this._targetDirectory;
        },
        set: function (targetDirectory) {
            this._targetDirectory = targetDirectory;
        },
        enumerable: true,
        configurable: true
    });
    FileReplicator.prototype.clear = function (files) {
        if (files === void 0) { files = []; }
        this._files = files;
    };
    /**
     * change from pouchdb replicate
     */
    FileReplicator.prototype.pushChanges = function (docs) {
        var items = [];
        if (docs && docs.length > 0) {
            for (var _i = 0, docs_1 = docs; _i < docs_1.length; _i++) {
                var item = docs_1[_i];
                if (item[this._itemKey] && item[this._itemKey] === this._itemValue) {
                    items.push(item);
                }
            }
        }
        var files = this.prepareFiles(items);
        for (var _a = 0, files_1 = files; _a < files_1.length; _a++) {
            var file = files_1[_a];
            this._files.push(file);
        }
    };
    FileReplicator.prototype.downloadFiles = function (files, fileHandler, index) {
        var _this = this;
        if (index === void 0) { index = 0; }
        if (index >= files.length) {
            return;
        }
        this.emit('start', { progress: 0, index: index, length: files.length });
        fileHandler
            .on('progress', function (progress) {
            _this.emit('file-progress', { progress: progress, index: index, length: files.length });
        })
            .once('error', function (error) {
            _this.emit('file-error', { progress: 0, index: index, length: files.length, error: error });
            fileHandler.removeAllListeners();
        })
            .once('complete', function () {
            _this.emit('file-complete', { progress: 100, index: index, length: files.length });
            fileHandler.removeAllListeners();
            _this.downloadFiles(files, fileHandler, index + 1);
        })
            .download(files[index].source, this.targetDirectory + files[index].target);
    };
    FileReplicator.prototype.prepareFiles = function (items) {
        var output = [];
        for (var _i = 0, items_1 = items; _i < items_1.length; _i++) {
            var item = items_1[_i];
            if (item[this._itemSourceAttribute] && (!this._itemValidator || this._itemValidator(item))) {
                var file = { source: item[this._itemSourceAttribute], target: '' };
                if (item[this._itemTargetAttribute]) {
                    file.target = item[this._itemTargetAttribute];
                }
                else {
                    file.target = Util.getNameHash(file.source);
                }
                output.push(file);
            }
        }
        return output;
    };
    FileReplicator.prototype.start = function (retries) {
        var _this = this;
        if (retries === void 0) { retries = 10; }
        this._retries = retries;
        this.on('file-complete', function (event) {
            if ((event.index + 1) >= event.length) {
                _this.replicationFinalized(event.index);
            }
        });
        this.on('file-error', function (event) {
            _this.replicationFinalized(event.index);
        });
        if (this._fileHandler && this._files.length > 0) {
            this.downloadFiles(this._files, this._fileHandler);
        }
        else {
            this.emit('complete');
        }
    };
    FileReplicator.prototype.cleanup = function () {
        var _this = this;
        this.fileHandler
            .cleanup(this._files, this._targetDirectory)
            .then(function () {
            _this.emit('cleanup-complete');
        }).catch(function () {
            _this.emit('cleanup-error');
        });
    };
    FileReplicator.prototype.replicationFinalized = function (lastIndex) {
        var _this = this;
        if (lastIndex + 1 >= this._files.length) {
            this.emit('complete');
        }
        else if (this._retries > 0) {
            this._files.splice(0, lastIndex);
            setTimeout(function () {
                _this._retries = -1;
                _this.downloadFiles(_this._files, _this._fileHandler);
            }, this._retryTimeout);
        }
        else {
            this.emit('error');
        }
    };
    return FileReplicator;
}(EventEmitter));

var CONFIG_ITEM_KEY = "itemKey";
var CONFIG_ITEM_VALUE = "itemValue";
var CONFIG_ITEM_SOURCE_ATTRIBUTE = "itemSourceAttribute";
var CONFIG_ITEM_TARGET_ATTRIBUTE = "itemTargetAttribute";
var CONFIG_ITEM_VALIDATOR = "itemValidator";
var CONFIG_RETRY_TIMEOUT = "retryTimeout";
var CONFIG_FILE_HANDLER = "fileHandler";
var CONFIG_TARGET_DIRECTORY = "targetDirectory";
var Config = (function () {
    function Config() {
        this.config = {};
    }
    Config.prototype.hasConfig = function (key) {
        if (this.config[key]) {
            return true;
        }
        return false;
    };
    Config.prototype.getConfig = function (key) {
        return this.config[key];
    };
    Config.prototype.setConfig = function (key, value) {
        this.config[key] = value;
        return this;
    };
    return Config;
}());

var ENV_ELECTRON = "electron";
var ENV_CORDOVA = "cordova";
var ENV_UNKNOWN = "unknown";
var ServiceLocator = (function () {
    function ServiceLocator() {
    }
    ServiceLocator.addFileHandler = function (environment, fileHandler) {
        ServiceLocator.fileHandlers[environment] = fileHandler;
    };
    ServiceLocator.getConfig = function () {
        if (!ServiceLocator.config) {
            ServiceLocator.config = new Config();
        }
        return ServiceLocator.config;
    };
    ServiceLocator.getEnvironment = function () {
        if (typeof window['require'] === 'function' && window['require']('electron')) {
            return ENV_ELECTRON;
        }
        if (typeof window['FileTransfer'] === 'function') {
            return ENV_CORDOVA;
        }
        return ENV_UNKNOWN;
    };
    ServiceLocator.getFileHandler = function () {
        var environment = ServiceLocator.getEnvironment();
        if (ServiceLocator.fileHandlers[environment]) {
            return ServiceLocator.fileHandlers[environment];
        }
        if (environment === ENV_ELECTRON) {
            return new ElectronFileHandler(window['require']('electron').ipcRenderer);
        }
        if (environment === ENV_CORDOVA) {
            return new CordovaFileHandler();
        }
        return null;
    };
    ServiceLocator.getFileReplicator = function () {
        if (!ServiceLocator.fileReplicator) {
            ServiceLocator.fileReplicator = new FileReplicator();
            ServiceLocator.fileReplicator.fileHandler = ServiceLocator.getFileHandler();
        }
        if (ServiceLocator.getConfig().hasConfig(CONFIG_RETRY_TIMEOUT)) {
            ServiceLocator.fileReplicator.retryTimeout = ServiceLocator.getConfig().getConfig(CONFIG_RETRY_TIMEOUT);
        }
        if (ServiceLocator.getConfig().hasConfig(CONFIG_ITEM_KEY)) {
            ServiceLocator.fileReplicator.itemKey = ServiceLocator.getConfig().getConfig(CONFIG_ITEM_KEY);
        }
        if (ServiceLocator.getConfig().hasConfig(CONFIG_ITEM_VALUE)) {
            ServiceLocator.fileReplicator.itemValue = ServiceLocator.getConfig().getConfig(CONFIG_ITEM_VALUE);
        }
        if (ServiceLocator.getConfig().hasConfig(CONFIG_ITEM_SOURCE_ATTRIBUTE)) {
            ServiceLocator.fileReplicator.itemSourceAttribute = ServiceLocator.getConfig().getConfig(CONFIG_ITEM_SOURCE_ATTRIBUTE);
        }
        if (ServiceLocator.getConfig().hasConfig(CONFIG_ITEM_TARGET_ATTRIBUTE)) {
            ServiceLocator.fileReplicator.itemTargetAttribute = ServiceLocator.getConfig().getConfig(CONFIG_ITEM_TARGET_ATTRIBUTE);
        }
        if (ServiceLocator.getConfig().hasConfig(CONFIG_TARGET_DIRECTORY)) {
            ServiceLocator.fileReplicator.targetDirectory = ServiceLocator.getConfig().getConfig(CONFIG_TARGET_DIRECTORY);
        }
        return ServiceLocator.fileReplicator;
    };
    ServiceLocator.fileHandlers = {};
    return ServiceLocator;
}());

exports.ENV_ELECTRON = ENV_ELECTRON;
exports.ENV_CORDOVA = ENV_CORDOVA;
exports.ENV_UNKNOWN = ENV_UNKNOWN;
exports.ServiceLocator = ServiceLocator;
exports.CONFIG_ITEM_KEY = CONFIG_ITEM_KEY;
exports.CONFIG_ITEM_VALUE = CONFIG_ITEM_VALUE;
exports.CONFIG_ITEM_SOURCE_ATTRIBUTE = CONFIG_ITEM_SOURCE_ATTRIBUTE;
exports.CONFIG_ITEM_TARGET_ATTRIBUTE = CONFIG_ITEM_TARGET_ATTRIBUTE;
exports.CONFIG_ITEM_VALIDATOR = CONFIG_ITEM_VALIDATOR;
exports.CONFIG_RETRY_TIMEOUT = CONFIG_RETRY_TIMEOUT;
exports.CONFIG_FILE_HANDLER = CONFIG_FILE_HANDLER;
exports.CONFIG_TARGET_DIRECTORY = CONFIG_TARGET_DIRECTORY;
exports.Config = Config;

Object.defineProperty(exports, '__esModule', { value: true });

})));
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