tusuploader.umd.js

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

var commonjsGlobal = typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};





function createCommonjsModule(fn, module) {
	return module = { exports: {} }, fn(module, module.exports), module.exports;
}

var fingerprint_1 = createCommonjsModule(function (module, exports) {
// Generated by Babel
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = fingerprint;
/**
 * Generate a fingerprint for a file which will be used the store the endpoint
 *
 * @param {File} file
 * @return {String}
 */
function fingerprint(file) {
  return ["tus", file.name, file.type, file.size, file.lastModified].join("-");
}
});

var error = createCommonjsModule(function (module, exports) {
// Generated by Babel
"use strict";

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

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var DetailedError = function (_Error) {
  _inherits(DetailedError, _Error);

  function DetailedError(error) {
    var causingErr = arguments.length <= 1 || arguments[1] === undefined ? null : arguments[1];
    var xhr = arguments.length <= 2 || arguments[2] === undefined ? null : arguments[2];

    _classCallCheck(this, DetailedError);

    var _this = _possibleConstructorReturn(this, Object.getPrototypeOf(DetailedError).call(this, error.message));

    _this.originalRequest = xhr;
    _this.causingError = causingErr;

    var message = error.message;
    if (causingErr != null) {
      message += ", caused by " + causingErr.toString();
    }
    if (xhr != null) {
      message += ", originated from request (response code: " + xhr.status + ", response text: " + xhr.responseText + ")";
    }
    _this.message = message;
    return _this;
  }

  return DetailedError;
}(Error);

exports.default = DetailedError;
});

var hasOwn = Object.prototype.hasOwnProperty;
var toStr = Object.prototype.toString;

var isArray = function isArray(arr) {
	if (typeof Array.isArray === 'function') {
		return Array.isArray(arr);
	}

	return toStr.call(arr) === '[object Array]';
};

var isPlainObject = function isPlainObject(obj) {
	if (!obj || toStr.call(obj) !== '[object Object]') {
		return false;
	}

	var hasOwnConstructor = hasOwn.call(obj, 'constructor');
	var hasIsPrototypeOf = obj.constructor && obj.constructor.prototype && hasOwn.call(obj.constructor.prototype, 'isPrototypeOf');
	// Not own constructor property must be Object
	if (obj.constructor && !hasOwnConstructor && !hasIsPrototypeOf) {
		return false;
	}

	// Own properties are enumerated firstly, so to speed up,
	// if last one is own, then all properties are own.
	var key;
	for (key in obj) { /**/ }

	return typeof key === 'undefined' || hasOwn.call(obj, key);
};

var index$2 = function extend() {
	var options, name, src, copy, copyIsArray, clone;
	var target = arguments[0];
	var i = 1;
	var length = arguments.length;
	var deep = false;

	// Handle a deep copy situation
	if (typeof target === 'boolean') {
		deep = target;
		target = arguments[1] || {};
		// skip the boolean and the target
		i = 2;
	}
	if (target == null || (typeof target !== 'object' && typeof target !== 'function')) {
		target = {};
	}

	for (; i < length; ++i) {
		options = arguments[i];
		// Only deal with non-null/undefined values
		if (options != null) {
			// Extend the base object
			for (name in options) {
				src = target[name];
				copy = options[name];

				// Prevent never-ending loop
				if (target !== copy) {
					// Recurse if we're merging plain objects or arrays
					if (deep && copy && (isPlainObject(copy) || (copyIsArray = isArray(copy)))) {
						if (copyIsArray) {
							copyIsArray = false;
							clone = src && isArray(src) ? src : [];
						} else {
							clone = src && isPlainObject(src) ? src : {};
						}

						// Never move original objects, clone them
						target[name] = extend(deep, clone, copy);

					// Don't bring in undefined values
					} else if (typeof copy !== 'undefined') {
						target[name] = copy;
					}
				}
			}
		}
	}

	// Return the modified object
	return target;
};

var resolveUrl = createCommonjsModule(function (module, exports) {
// Copyright 2014 Simon Lydell
// X11 (“MIT”) Licensed. (See LICENSE.)

void (function(root, factory) {
  if (typeof undefined === "function" && undefined.amd) {
    undefined(factory);
  } else {
    module.exports = factory();
  }
}(commonjsGlobal, function() {

  function resolveUrl(/* ...urls */) {
    var numUrls = arguments.length;

    if (numUrls === 0) {
      throw new Error("resolveUrl requires at least one argument; got none.")
    }

    var base = document.createElement("base");
    base.href = arguments[0];

    if (numUrls === 1) {
      return base.href
    }

    var head = document.getElementsByTagName("head")[0];
    head.insertBefore(base, head.firstChild);

    var a = document.createElement("a");
    var resolved;

    for (var index = 1; index < numUrls; index++) {
      a.href = arguments[index];
      resolved = a.href;
      base.href = resolved;
    }

    head.removeChild(base);

    return resolved
  }

  return resolveUrl

}));
});

var request = createCommonjsModule(function (module, exports) {
// Generated by Babel
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.newRequest = newRequest;
exports.resolveUrl = resolveUrl$$1;



var _resolveUrl2 = _interopRequireDefault(resolveUrl);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function newRequest() {
  return new window.XMLHttpRequest();
} /* global window */


function resolveUrl$$1(origin, link) {
  return (0, _resolveUrl2.default)(origin, link);
}
});

var source = createCommonjsModule(function (module, exports) {
// Generated by Babel
"use strict";

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getSource = getSource;

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var FileSource = function () {
  function FileSource(file) {
    _classCallCheck(this, FileSource);

    this._file = file;
    this.size = file.size;
  }

  _createClass(FileSource, [{
    key: "slice",
    value: function slice(start, end) {
      return this._file.slice(start, end);
    }
  }, {
    key: "close",
    value: function close() {}
  }]);

  return FileSource;
}();

function getSource(input) {
  // Since we emulate the Blob type in our tests (not all target browsers
  // support it), we cannot use `instanceof` for testing whether the input value
  // can be handled. Instead, we simply check is the slice() function and the
  // size property are available.
  if (typeof input.slice === "function" && typeof input.size !== "undefined") {
    return new FileSource(input);
  }

  throw new Error("source object may only be an instance of File or Blob in this environment");
}
});

var base64 = createCommonjsModule(function (module, exports) {
// Generated by Babel
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.encode = encode;
/* global: window */

var _window = window;
var btoa = _window.btoa;
function encode(data) {
  return btoa(unescape(encodeURIComponent(data)));
}

var isSupported = exports.isSupported = "btoa" in window;
});

var storage = createCommonjsModule(function (module, exports) {
// Generated by Babel
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.setItem = setItem;
exports.getItem = getItem;
exports.removeItem = removeItem;
/* global window, localStorage */

var hasStorage = false;
try {
  hasStorage = "localStorage" in window;

  // Attempt to store and read entries from the local storage to detect Private
  // Mode on Safari on iOS (see #49)
  var key = "tusSupport";
  localStorage.setItem(key, localStorage.getItem(key));
} catch (e) {
  // If we try to access localStorage inside a sandboxed iframe, a SecurityError
  // is thrown. When in private mode on iOS Safari, a QuotaExceededError is
  // thrown (see #49)
  if (e.code === e.SECURITY_ERR || e.code === e.QUOTA_EXCEEDED_ERR) {
    hasStorage = false;
  } else {
    throw e;
  }
}

var canStoreURLs = exports.canStoreURLs = hasStorage;

function setItem(key, value) {
  if (!hasStorage) return;
  return localStorage.setItem(key, value);
}

function getItem(key) {
  if (!hasStorage) return;
  return localStorage.getItem(key);
}

function removeItem(key) {
  if (!hasStorage) return;
  return localStorage.removeItem(key);
}
});

var upload = createCommonjsModule(function (module, exports) {
// Generated by Babel
"use strict";

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }(); /* global window */


// We import the files used inside the Node environment which are rewritten
// for browsers using the rules defined in the package.json


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



var _fingerprint2 = _interopRequireDefault(fingerprint_1);



var _error2 = _interopRequireDefault(error);



var _extend2 = _interopRequireDefault(index$2);







var Base64 = _interopRequireWildcard(base64);



var Storage = _interopRequireWildcard(storage);

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var defaultOptions = {
  endpoint: "",
  fingerprint: _fingerprint2.default,
  resume: true,
  onProgress: null,
  onChunkComplete: null,
  onSuccess: null,
  onError: null,
  headers: {},
  chunkSize: Infinity,
  withCredentials: false,
  uploadUrl: null,
  uploadSize: null,
  overridePatchMethod: false,
  retryDelays: null
};

var Upload = function () {
  function Upload(file, options) {
    _classCallCheck(this, Upload);

    this.options = (0, _extend2.default)(true, {}, defaultOptions, options);

    // The underlying File/Blob object
    this.file = file;

    // The URL against which the file will be uploaded
    this.url = null;

    // The underlying XHR object for the current PATCH request
    this._xhr = null;

    // The fingerpinrt for the current file (set after start())
    this._fingerprint = null;

    // The offset used in the current PATCH request
    this._offset = null;

    // True if the current PATCH request has been aborted
    this._aborted = false;

    // The file's size in bytes
    this._size = null;

    // The Source object which will wrap around the given file and provides us
    // with a unified interface for getting its size and slice chunks from its
    // content allowing us to easily handle Files, Blobs, Buffers and Streams.
    this._source = null;

    // The current count of attempts which have been made. Null indicates none.
    this._retryAttempt = 0;

    // The timeout's ID which is used to delay the next retry
    this._retryTimeout = null;

    // The offset of the remote upload before the latest attempt was started.
    this._offsetBeforeRetry = 0;
  }

  _createClass(Upload, [{
    key: "start",
    value: function start() {
      var _this = this;

      var file = this.file;

      if (!file) {
        this._emitError(new Error("tus: no file or stream to upload provided"));
        return;
      }

      if (!this.options.endpoint) {
        this._emitError(new Error("tus: no endpoint provided"));
        return;
      }

      var source$$1 = this._source = (0, source.getSource)(file, this.options.chunkSize);

      // Firstly, check if the caller has supplied a manual upload size or else
      // we will use the calculated size by the source object.
      if (this.options.uploadSize != null) {
        var size = +this.options.uploadSize;
        if (isNaN(size)) {
          throw new Error("tus: cannot convert `uploadSize` option into a number");
        }

        this._size = size;
      } else {
        var size = source$$1.size;

        // The size property will be null if we cannot calculate the file's size,
        // for example if you handle a stream.
        if (size == null) {
          throw new Error("tus: cannot automatically derive upload's size from input and must be specified manually using the `uploadSize` option");
        }

        this._size = size;
      }

      var retryDelays = this.options.retryDelays;
      if (retryDelays != null) {
        if (Object.prototype.toString.call(retryDelays) !== "[object Array]") {
          throw new Error("tus: the `retryDelays` option must either be an array or null");
        } else {
          (function () {
            var errorCallback = _this.options.onError;
            _this.options.onError = function (err) {
              // Restore the original error callback which may have been set.
              _this.options.onError = errorCallback;

              // We will reset the attempt counter if
              // - we were already able to connect to the server (offset != null) and
              // - we were able to upload a small chunk of data to the server
              var shouldResetDelays = _this._offset != null && _this._offset > _this._offsetBeforeRetry;
              if (shouldResetDelays) {
                _this._retryAttempt = 0;
              }

              var isOnline = true;
              if (typeof window !== "undefined" && "navigator" in window && window.navigator.onLine === false) {
                isOnline = false;
              }

              // We only attempt a retry if
              // - we didn't exceed the maxium number of retries, yet, and
              // - this error was caused by a request or it's response and
              // - the browser does not indicate that we are offline
              var shouldRetry = _this._retryAttempt < retryDelays.length && err.originalRequest != null && isOnline;

              if (!shouldRetry) {
                _this._emitError(err);
                return;
              }

              var delay = retryDelays[_this._retryAttempt++];

              _this._offsetBeforeRetry = _this._offset;
              _this.options.uploadUrl = _this.url;

              _this._retryTimeout = setTimeout(function () {
                _this.start();
              }, delay);
            };
          })();
        }
      }

      // Reset the aborted flag when the upload is started or else the
      // _startUpload will stop before sending a request if the upload has been
      // aborted previously.
      this._aborted = false;

      // A URL has manually been specified, so we try to resume
      if (this.options.uploadUrl != null) {
        this.url = this.options.uploadUrl;
        this._resumeUpload();
        return;
      }

      // Try to find the endpoint for the file in the storage
      if (this.options.resume) {
        this._fingerprint = this.options.fingerprint(file);
        var resumedUrl = Storage.getItem(this._fingerprint);

        if (resumedUrl != null) {
          this.url = resumedUrl;
          this._resumeUpload();
          return;
        }
      }

      // An upload has not started for the file yet, so we start a new one
      this._createUpload();
    }
  }, {
    key: "abort",
    value: function abort() {
      if (this._xhr !== null) {
        this._xhr.abort();
        this._source.close();
        this._aborted = true;
      }

      if (this._retryTimeout != null) {
        clearTimeout(this._retryTimeout);
        this._retryTimeout = null;
      }
    }
  }, {
    key: "_emitXhrError",
    value: function _emitXhrError(xhr, err, causingErr) {
      this._emitError(new _error2.default(err, causingErr, xhr));
    }
  }, {
    key: "_emitError",
    value: function _emitError(err) {
      if (typeof this.options.onError === "function") {
        this.options.onError(err);
      } else {
        throw err;
      }
    }
  }, {
    key: "_emitSuccess",
    value: function _emitSuccess() {
      if (typeof this.options.onSuccess === "function") {
        this.options.onSuccess();
      }
    }

    /**
     * Publishes notification when data has been sent to the server. This
     * data may not have been accepted by the server yet.
     * @param  {number} bytesSent  Number of bytes sent to the server.
     * @param  {number} bytesTotal Total number of bytes to be sent to the server.
     */

  }, {
    key: "_emitProgress",
    value: function _emitProgress(bytesSent, bytesTotal) {
      if (typeof this.options.onProgress === "function") {
        this.options.onProgress(bytesSent, bytesTotal);
      }
    }

    /**
     * Publishes notification when a chunk of data has been sent to the server
     * and accepted by the server.
     * @param  {number} chunkSize  Size of the chunk that was accepted by the
     *                             server.
     * @param  {number} bytesAccepted Total number of bytes that have been
     *                                accepted by the server.
     * @param  {number} bytesTotal Total number of bytes to be sent to the server.
     */

  }, {
    key: "_emitChunkComplete",
    value: function _emitChunkComplete(chunkSize, bytesAccepted, bytesTotal) {
      if (typeof this.options.onChunkComplete === "function") {
        this.options.onChunkComplete(chunkSize, bytesAccepted, bytesTotal);
      }
    }

    /**
     * Set the headers used in the request and the withCredentials property
     * as defined in the options
     *
     * @param {XMLHttpRequest} xhr
     */

  }, {
    key: "_setupXHR",
    value: function _setupXHR(xhr) {
      xhr.setRequestHeader("Tus-Resumable", "1.0.0");
      var headers = this.options.headers;

      for (var name in headers) {
        xhr.setRequestHeader(name, headers[name]);
      }

      xhr.withCredentials = this.options.withCredentials;
    }

    /**
     * Create a new upload using the creation extension by sending a POST
     * request to the endpoint. After successful creation the file will be
     * uploaded
     *
     * @api private
     */

  }, {
    key: "_createUpload",
    value: function _createUpload() {
      var _this2 = this;

      var xhr = (0, request.newRequest)();
      xhr.open("POST", this.options.endpoint, true);

      xhr.onload = function () {
        if (!(xhr.status >= 200 && xhr.status < 300)) {
          _this2._emitXhrError(xhr, new Error("tus: unexpected response while creating upload"));
          return;
        }

        _this2.url = (0, request.resolveUrl)(_this2.options.endpoint, xhr.getResponseHeader("Location"));

        if (_this2.options.resume) {
          Storage.setItem(_this2._fingerprint, _this2.url);
        }

        _this2._offset = 0;
        _this2._startUpload();
      };

      xhr.onerror = function (err) {
        _this2._emitXhrError(xhr, new Error("tus: failed to create upload"), err);
      };

      this._setupXHR(xhr);
      xhr.setRequestHeader("Upload-Length", this._size);

      // Add metadata if values have been added
      var metadata = encodeMetadata(this.options.metadata);
      if (metadata !== "") {
        xhr.setRequestHeader("Upload-Metadata", metadata);
      }

      xhr.send(null);
    }

    /*
     * Try to resume an existing upload. First a HEAD request will be sent
     * to retrieve the offset. If the request fails a new upload will be
     * created. In the case of a successful response the file will be uploaded.
     *
     * @api private
     */

  }, {
    key: "_resumeUpload",
    value: function _resumeUpload() {
      var _this3 = this;

      var xhr = (0, request.newRequest)();
      xhr.open("HEAD", this.url, true);

      xhr.onload = function () {
        if (!(xhr.status >= 200 && xhr.status < 300)) {
          if (_this3.options.resume) {
            // Remove stored fingerprint and corresponding endpoint,
            // since the file can not be found
            Storage.removeItem(_this3._fingerprint);
          }

          // If the upload is locked (indicated by the 423 Locked status code), we
          // emit an error instead of directly starting a new upload. This way the
          // retry logic can catch the error and will retry the upload. An upload
          // is usually locked for a short period of time and will be available
          // afterwards.
          if (xhr.status === 423) {
            _this3._emitXhrError(xhr, new Error("tus: upload is currently locked; retry later"));
            return;
          }

          // Try to create a new upload
          _this3.url = null;
          _this3._createUpload();
          return;
        }

        var offset = parseInt(xhr.getResponseHeader("Upload-Offset"), 10);
        if (isNaN(offset)) {
          _this3._emitXhrError(xhr, new Error("tus: invalid or missing offset value"));
          return;
        }

        var length = parseInt(xhr.getResponseHeader("Upload-Length"), 10);
        if (isNaN(length)) {
          _this3._emitXhrError(xhr, new Error("tus: invalid or missing length value"));
          return;
        }

        // Upload has already been completed and we do not need to send additional
        // data to the server
        if (offset === length) {
          _this3._emitProgress(length, length);
          _this3._emitSuccess();
          return;
        }

        _this3._offset = offset;
        _this3._startUpload();
      };

      xhr.onerror = function (err) {
        _this3._emitXhrError(xhr, new Error("tus: failed to resume upload"), err);
      };

      this._setupXHR(xhr);
      xhr.send(null);
    }

    /**
     * Start uploading the file using PATCH requests. The file will be divided
     * into chunks as specified in the chunkSize option. During the upload
     * the onProgress event handler may be invoked multiple times.
     *
     * @api private
     */

  }, {
    key: "_startUpload",
    value: function _startUpload() {
      var _this4 = this;

      // If the upload has been aborted, we will not send the next PATCH request.
      // This is important if the abort method was called during a callback, such
      // as onChunkComplete or onProgress.
      if (this._aborted) {
        return;
      }

      var xhr = this._xhr = (0, request.newRequest)();

      // Some browser and servers may not support the PATCH method. For those
      // cases, you can tell tus-js-client to use a POST request with the
      // X-HTTP-Method-Override header for simulating a PATCH request.
      if (this.options.overridePatchMethod) {
        xhr.open("POST", this.url, true);
        xhr.setRequestHeader("X-HTTP-Method-Override", "PATCH");
      } else {
        xhr.open("PATCH", this.url, true);
      }

      xhr.onload = function () {
        if (!(xhr.status >= 200 && xhr.status < 300)) {
          _this4._emitXhrError(xhr, new Error("tus: unexpected response while uploading chunk"));
          return;
        }

        var offset = parseInt(xhr.getResponseHeader("Upload-Offset"), 10);
        if (isNaN(offset)) {
          _this4._emitXhrError(xhr, new Error("tus: invalid or missing offset value"));
          return;
        }

        _this4._emitProgress(offset, _this4._size);
        _this4._emitChunkComplete(offset - _this4._offset, offset, _this4._size);

        _this4._offset = offset;

        if (offset == _this4._size) {
          // Yay, finally done :)
          _this4._emitSuccess();
          _this4._source.close();
          return;
        }

        _this4._startUpload();
      };

      xhr.onerror = function (err) {
        // Don't emit an error if the upload was aborted manually
        if (_this4._aborted) {
          return;
        }

        _this4._emitXhrError(xhr, new Error("tus: failed to upload chunk at offset " + _this4._offset), err);
      };

      // Test support for progress events before attaching an event listener
      if ("upload" in xhr) {
        xhr.upload.onprogress = function (e) {
          if (!e.lengthComputable) {
            return;
          }

          _this4._emitProgress(start + e.loaded, _this4._size);
        };
      }

      this._setupXHR(xhr);

      xhr.setRequestHeader("Upload-Offset", this._offset);
      xhr.setRequestHeader("Content-Type", "application/offset+octet-stream");

      var start = this._offset;
      var end = this._offset + this.options.chunkSize;

      // The specified chunkSize may be Infinity or the calcluated end position
      // may exceed the file's size. In both cases, we limit the end position to
      // the input's total size for simpler calculations and correctness.
      if (end === Infinity || end > this._size) {
        end = this._size;
      }

      xhr.send(this._source.slice(start, end));
    }
  }]);

  return Upload;
}();

function encodeMetadata(metadata) {
  if (!Base64.isSupported) {
    return "";
  }

  var encoded = [];

  for (var key in metadata) {
    encoded.push(key + " " + Base64.encode(metadata[key]));
  }

  return encoded.join(",");
}

Upload.defaultOptions = defaultOptions;

exports.default = Upload;
});

var index = createCommonjsModule(function (module) {
// Generated by Babel
"use strict";



var _upload2 = _interopRequireDefault(upload);



function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/* global window */
var defaultOptions = _upload2.default.defaultOptions;


if (typeof window !== "undefined") {
  // Browser environment using XMLHttpRequest
  var _window = window;
  var XMLHttpRequest = _window.XMLHttpRequest;
  var Blob = _window.Blob;


  var isSupported = XMLHttpRequest && Blob && typeof Blob.prototype.slice === "function";
} else {
  // Node.js environment using http module
  var isSupported = true;
}

// The usage of the commonjs exporting syntax instead of the new ECMAScript
// one is actually inteded and prevents weird behaviour if we are trying to
// import this module in another module using Babel.
module.exports = {
  Upload: _upload2.default,
  isSupported: isSupported,
  canStoreURLs: storage.canStoreURLs,
  defaultOptions: defaultOptions
};
});

var ee = createCommonjsModule(function (module) {
module.exports = {
    on: function (ev, handler) {
        var events = this._events;(events[ev] || (events[ev] = [])).push(handler);
    },
    removeListener: function (ev, handler) {
        var array = this._events[ev];

        array && array.splice(array.indexOf(handler), 1);
    },
    emit: function (ev) {
        var args = [].slice.call(arguments, 1),
            array = this._events[ev] || [];

        for (var i = 0, len = array.length; i < len; i++) {
            array[i].apply(this, args);
        }
    },
    once: function (ev, handler) {
        this.on(ev, function () {
            handler.apply(this, arguments);
            this.removeListener(ev, handler);
        });
    },
    constructor: function constructor() {
        this._events = {};
        return this
    }
};

module.exports.constructor.prototype = module.exports;
});

var browserCuid = createCommonjsModule(function (module) {
/**
 * cuid.js
 * Collision-resistant UID generator for browsers and node.
 * Sequential for fast db lookups and recency sorting.
 * Safe for element IDs and server-side lookups.
 *
 * Extracted from CLCTR
 *
 * Copyright (c) Eric Elliott 2012
 * MIT License
 */

/*global window, navigator, document, require, process, module */
(function (app) {
  'use strict';
  var namespace = 'cuid',
    c = 0,
    blockSize = 4,
    base = 36,
    discreteValues = Math.pow(base, blockSize),

    pad = function pad(num, size) {
      var s = "000000000" + num;
      return s.substr(s.length-size);
    },

    randomBlock = function randomBlock() {
      return pad((Math.random() *
            discreteValues << 0)
            .toString(base), blockSize);
    },

    safeCounter = function () {
      c = (c < discreteValues) ? c : 0;
      c++; // this is not subliminal
      return c - 1;
    },

    api = function cuid() {
      // Starting with a lowercase letter makes
      // it HTML element ID friendly.
      var letter = 'c', // hard-coded allows for sequential access

        // timestamp
        // warning: this exposes the exact date and time
        // that the uid was created.
        timestamp = (new Date().getTime()).toString(base),

        // Prevent same-machine collisions.
        counter,

        // A few chars to generate distinct ids for different
        // clients (so different computers are far less
        // likely to generate the same id)
        fingerprint = api.fingerprint(),

        // Grab some more chars from Math.random()
        random = randomBlock() + randomBlock();

        counter = pad(safeCounter().toString(base), blockSize);

      return  (letter + timestamp + counter + fingerprint + random);
    };

  api.slug = function slug() {
    var date = new Date().getTime().toString(36),
      counter,
      print = api.fingerprint().slice(0,1) +
        api.fingerprint().slice(-1),
      random = randomBlock().slice(-2);

      counter = safeCounter().toString(36).slice(-4);

    return date.slice(-2) +
      counter + print + random;
  };

  api.globalCount = function globalCount() {
    // We want to cache the results of this
    var cache = (function calc() {
        var i,
          count = 0;

        for (i in window) {
          count++;
        }

        return count;
      }());

    api.globalCount = function () { return cache; };
    return cache;
  };

  api.fingerprint = function browserPrint() {
    return pad((navigator.mimeTypes.length +
      navigator.userAgent.length).toString(36) +
      api.globalCount().toString(36), 4);
  };

  // don't change anything from here down.
  if (app.register) {
    app.register(namespace, api);
  } else {
    module.exports = api;
  }

}(commonjsGlobal.applitude || commonjsGlobal));
});

/**
 * lodash (Custom Build) <https://lodash.com/>
 * Build: `lodash modularize exports="npm" -o ./`
 * Copyright jQuery Foundation and other contributors <https://jquery.org/>
 * Released under MIT license <https://lodash.com/license>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 */

/** Used as references for various `Number` constants. */
var MAX_SAFE_INTEGER = 9007199254740991;

/** `Object#toString` result references. */
var argsTag = '[object Arguments]';
var funcTag = '[object Function]';
var genTag = '[object GeneratorFunction]';

/** Used to detect unsigned integer values. */
var reIsUint = /^(?:0|[1-9]\d*)$/;

/**
 * A faster alternative to `Function#apply`, this function invokes `func`
 * with the `this` binding of `thisArg` and the arguments of `args`.
 *
 * @private
 * @param {Function} func The function to invoke.
 * @param {*} thisArg The `this` binding of `func`.
 * @param {Array} args The arguments to invoke `func` with.
 * @returns {*} Returns the result of `func`.
 */
function apply(func, thisArg, args) {
  switch (args.length) {
    case 0: return func.call(thisArg);
    case 1: return func.call(thisArg, args[0]);
    case 2: return func.call(thisArg, args[0], args[1]);
    case 3: return func.call(thisArg, args[0], args[1], args[2]);
  }
  return func.apply(thisArg, args);
}

/**
 * The base implementation of `_.times` without support for iteratee shorthands
 * or max array length checks.
 *
 * @private
 * @param {number} n The number of times to invoke `iteratee`.
 * @param {Function} iteratee The function invoked per iteration.
 * @returns {Array} Returns the array of results.
 */
function baseTimes(n, iteratee) {
  var index = -1,
      result = Array(n);

  while (++index < n) {
    result[index] = iteratee(index);
  }
  return result;
}

/** Used for built-in method references. */
var objectProto = Object.prototype;

/** Used to check objects for own properties. */
var hasOwnProperty = objectProto.hasOwnProperty;

/**
 * Used to resolve the
 * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
 * of values.
 */
var objectToString = objectProto.toString;

/** Built-in value references. */
var propertyIsEnumerable = objectProto.propertyIsEnumerable;

/* Built-in method references for those with the same name as other `lodash` methods. */
var nativeMax = Math.max;

/**
 * Creates an array of the enumerable property names of the array-like `value`.
 *
 * @private
 * @param {*} value The value to query.
 * @param {boolean} inherited Specify returning inherited property names.
 * @returns {Array} Returns the array of property names.
 */
function arrayLikeKeys(value, inherited) {
  // Safari 8.1 makes `arguments.callee` enumerable in strict mode.
  // Safari 9 makes `arguments.length` enumerable in strict mode.
  var result = (isArray$1(value) || isArguments(value))
    ? baseTimes(value.length, String)
    : [];

  var length = result.length,
      skipIndexes = !!length;

  for (var key in value) {
    if ((inherited || hasOwnProperty.call(value, key)) &&
        !(skipIndexes && (key == 'length' || isIndex(key, length)))) {
      result.push(key);
    }
  }
  return result;
}

/**
 * Assigns `value` to `key` of `object` if the existing value is not equivalent
 * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
 * for equality comparisons.
 *
 * @private
 * @param {Object} object The object to modify.
 * @param {string} key The key of the property to assign.
 * @param {*} value The value to assign.
 */
function assignValue(object, key, value) {
  var objValue = object[key];
  if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||
      (value === undefined && !(key in object))) {
    object[key] = value;
  }
}

/**
 * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.
 *
 * @private
 * @param {Object} object The object to query.
 * @returns {Array} Returns the array of property names.
 */
function baseKeysIn(object) {
  if (!isObject(object)) {
    return nativeKeysIn(object);
  }
  var isProto = isPrototype(object),
      result = [];

  for (var key in object) {
    if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
      result.push(key);
    }
  }
  return result;
}

/**
 * The base implementation of `_.rest` which doesn't validate or coerce arguments.
 *
 * @private
 * @param {Function} func The function to apply a rest parameter to.
 * @param {number} [start=func.length-1] The start position of the rest parameter.
 * @returns {Function} Returns the new function.
 */
function baseRest(func, start) {
  start = nativeMax(start === undefined ? (func.length - 1) : start, 0);
  return function() {
    var args = arguments,
        index = -1,
        length = nativeMax(args.length - start, 0),
        array = Array(length);

    while (++index < length) {
      array[index] = args[start + index];
    }
    index = -1;
    var otherArgs = Array(start + 1);
    while (++index < start) {
      otherArgs[index] = args[index];
    }
    otherArgs[start] = array;
    return apply(func, this, otherArgs);
  };
}

/**
 * Copies properties of `source` to `object`.
 *
 * @private
 * @param {Object} source The object to copy properties from.
 * @param {Array} props The property identifiers to copy.
 * @param {Object} [object={}] The object to copy properties to.
 * @param {Function} [customizer] The function to customize copied values.
 * @returns {Object} Returns `object`.
 */
function copyObject(source, props, object, customizer) {
  object || (object = {});

  var index = -1,
      length = props.length;

  while (++index < length) {
    var key = props[index];

    var newValue = customizer
      ? customizer(object[key], source[key], key, object, source)
      : undefined;

    assignValue(object, key, newValue === undefined ? source[key] : newValue);
  }
  return object;
}

/**
 * Creates a function like `_.assign`.
 *
 * @private
 * @param {Function} assigner The function to assign values.
 * @returns {Function} Returns the new assigner function.
 */
function createAssigner(assigner) {
  return baseRest(function(object, sources) {
    var index = -1,
        length = sources.length,
        customizer = length > 1 ? sources[length - 1] : undefined,
        guard = length > 2 ? sources[2] : undefined;

    customizer = (assigner.length > 3 && typeof customizer == 'function')
      ? (length--, customizer)
      : undefined;

    if (guard && isIterateeCall(sources[0], sources[1], guard)) {
      customizer = length < 3 ? undefined : customizer;
      length = 1;
    }
    object = Object(object);
    while (++index < length) {
      var source = sources[index];
      if (source) {
        assigner(object, source, index, customizer);
      }
    }
    return object;
  });
}

/**
 * Checks if `value` is a valid array-like index.
 *
 * @private
 * @param {*} value The value to check.
 * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
 * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
 */
function isIndex(value, length) {
  length = length == null ? MAX_SAFE_INTEGER : length;
  return !!length &&
    (typeof value == 'number' || reIsUint.test(value)) &&
    (value > -1 && value % 1 == 0 && value < length);
}

/**
 * Checks if the given arguments are from an iteratee call.
 *
 * @private
 * @param {*} value The potential iteratee value argument.
 * @param {*} index The potential iteratee index or key argument.
 * @param {*} object The potential iteratee object argument.
 * @returns {boolean} Returns `true` if the arguments are from an iteratee call,
 *  else `false`.
 */
function isIterateeCall(value, index, object) {
  if (!isObject(object)) {
    return false;
  }
  var type = typeof index;
  if (type == 'number'
        ? (isArrayLike(object) && isIndex(index, object.length))
        : (type == 'string' && index in object)
      ) {
    return eq(object[index], value);
  }
  return false;
}

/**
 * Checks if `value` is likely a prototype object.
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.
 */
function isPrototype(value) {
  var Ctor = value && value.constructor,
      proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;

  return value === proto;
}

/**
 * This function is like
 * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
 * except that it includes inherited enumerable properties.
 *
 * @private
 * @param {Object} object The object to query.
 * @returns {Array} Returns the array of property names.
 */
function nativeKeysIn(object) {
  var result = [];
  if (object != null) {
    for (var key in Object(object)) {
      result.push(key);
    }
  }
  return result;
}

/**
 * Performs a
 * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
 * comparison between two values to determine if they are equivalent.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Lang
 * @param {*} value The value to compare.
 * @param {*} other The other value to compare.
 * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
 * @example
 *
 * var object = { 'a': 1 };
 * var other = { 'a': 1 };
 *
 * _.eq(object, object);
 * // => true
 *
 * _.eq(object, other);
 * // => false
 *
 * _.eq('a', 'a');
 * // => true
 *
 * _.eq('a', Object('a'));
 * // => false
 *
 * _.eq(NaN, NaN);
 * // => true
 */
function eq(value, other) {
  return value === other || (value !== value && other !== other);
}

/**
 * Checks if `value` is likely an `arguments` object.
 *
 * @static
 * @memberOf _
 * @since 0.1.0
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is an `arguments` object,
 *  else `false`.
 * @example
 *
 * _.isArguments(function() { return arguments; }());
 * // => true
 *
 * _.isArguments([1, 2, 3]);
 * // => false
 */
function isArguments(value) {
  // Safari 8.1 makes `arguments.callee` enumerable in strict mode.
  return isArrayLikeObject(value) && hasOwnProperty.call(value, 'callee') &&
    (!propertyIsEnumerable.call(value, 'callee') || objectToString.call(value) == argsTag);
}

/**
 * Checks if `value` is classified as an `Array` object.
 *
 * @static
 * @memberOf _
 * @since 0.1.0
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is an array, else `false`.
 * @example
 *
 * _.isArray([1, 2, 3]);
 * // => true
 *
 * _.isArray(document.body.children);
 * // => false
 *
 * _.isArray('abc');
 * // => false
 *
 * _.isArray(_.noop);
 * // => false
 */
var isArray$1 = Array.isArray;

/**
 * Checks if `value` is array-like. A value is considered array-like if it's
 * not a function and has a `value.length` that's an integer greater than or
 * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
 * @example
 *
 * _.isArrayLike([1, 2, 3]);
 * // => true
 *
 * _.isArrayLike(document.body.children);
 * // => true
 *
 * _.isArrayLike('abc');
 * // => true
 *
 * _.isArrayLike(_.noop);
 * // => false
 */
function isArrayLike(value) {
  return value != null && isLength(value.length) && !isFunction(value);
}

/**
 * This method is like `_.isArrayLike` except that it also checks if `value`
 * is an object.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is an array-like object,
 *  else `false`.
 * @example
 *
 * _.isArrayLikeObject([1, 2, 3]);
 * // => true
 *
 * _.isArrayLikeObject(document.body.children);
 * // => true
 *
 * _.isArrayLikeObject('abc');
 * // => false
 *
 * _.isArrayLikeObject(_.noop);
 * // => false
 */
function isArrayLikeObject(value) {
  return isObjectLike(value) && isArrayLike(value);
}

/**
 * Checks if `value` is classified as a `Function` object.
 *
 * @static
 * @memberOf _
 * @since 0.1.0
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a function, else `false`.
 * @example
 *
 * _.isFunction(_);
 * // => true
 *
 * _.isFunction(/abc/);
 * // => false
 */
function isFunction(value) {
  // The use of `Object#toString` avoids issues with the `typeof` operator
  // in Safari 8-9 which returns 'object' for typed array and other constructors.
  var tag = isObject(value) ? objectToString.call(value) : '';
  return tag == funcTag || tag == genTag;
}

/**
 * Checks if `value` is a valid array-like length.
 *
 * **Note:** This method is loosely based on
 * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
 * @example
 *
 * _.isLength(3);
 * // => true
 *
 * _.isLength(Number.MIN_VALUE);
 * // => false
 *
 * _.isLength(Infinity);
 * // => false
 *
 * _.isLength('3');
 * // => false
 */
function isLength(value) {
  return typeof value == 'number' &&
    value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
}

/**
 * Checks if `value` is the
 * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
 * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
 *
 * @static
 * @memberOf _
 * @since 0.1.0
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is an object, else `false`.
 * @example
 *
 * _.isObject({});
 * // => true
 *
 * _.isObject([1, 2, 3]);
 * // => true
 *
 * _.isObject(_.noop);
 * // => true
 *
 * _.isObject(null);
 * // => false
 */
function isObject(value) {
  var type = typeof value;
  return !!value && (type == 'object' || type == 'function');
}

/**
 * Checks if `value` is object-like. A value is object-like if it's not `null`
 * and has a `typeof` result of "object".
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
 * @example
 *
 * _.isObjectLike({});
 * // => true
 *
 * _.isObjectLike([1, 2, 3]);
 * // => true
 *
 * _.isObjectLike(_.noop);
 * // => false
 *
 * _.isObjectLike(null);
 * // => false
 */
function isObjectLike(value) {
  return !!value && typeof value == 'object';
}

/**
 * This method is like `_.assign` except that it iterates over own and
 * inherited source properties.
 *
 * **Note:** This method mutates `object`.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @alias extend
 * @category Object
 * @param {Object} object The destination object.
 * @param {...Object} [sources] The source objects.
 * @returns {Object} Returns `object`.
 * @see _.assign
 * @example
 *
 * function Foo() {
 *   this.a = 1;
 * }
 *
 * function Bar() {
 *   this.c = 3;
 * }
 *
 * Foo.prototype.b = 2;
 * Bar.prototype.d = 4;
 *
 * _.assignIn({ 'a': 0 }, new Foo, new Bar);
 * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }
 */
var assignIn = createAssigner(function(object, source) {
  copyObject(source, keysIn(source), object);
});

/**
 * Creates an array of the own and inherited enumerable property names of `object`.
 *
 * **Note:** Non-object values are coerced to objects.
 *
 * @static
 * @memberOf _
 * @since 3.0.0
 * @category Object
 * @param {Object} object The object to query.
 * @returns {Array} Returns the array of property names.
 * @example
 *
 * function Foo() {
 *   this.a = 1;
 *   this.b = 2;
 * }
 *
 * Foo.prototype.c = 3;
 *
 * _.keysIn(new Foo);
 * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
 */
function keysIn(object) {
  return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);
}

var index$4 = assignIn;

/**
 * Tus based client uploader.
 * 
 * It gives you the ability to upload a file to the reference tus server
 */

// Global axios

//../../node_modules/tus-js-client/dist/tus




/**
 * Creates a new Tus based file Uploader
 * 
 * @param {object} options
 */
var tusuploader = function(options){

    var UploadStatus = {
        PENDING: 1,
        UPLOADING: 2,
        RETRYING: 3,
        COMPLETED: 4,
        CANCELLED: 5,
        FAILED: 6,
    };

    var defaultOptions = {
        /**
         * The TUSd server endpoint
         * 
         * @var {string}
         */
        // tus_endpoint: "http://192.168.0.36:1080/uploads/", // might be in the response from the server
        /**
         * The endpoint that will authorize the upload request
         * @var {string}
         */
        endpoint: "/uploadjobs/",
        /**
         * 
         * @var {array}
         */
        retryDelays: [0, 1000, 3000, 5000],
        /**
         * Automatically starts the upload after has been added to the queue
         * 
         * @default false
         * @var {boolean}
         */
        autoUpload: false,
    };

    var uploadsQueue = [];

    options = index$4(defaultOptions, options || {});

    if (typeof document.querySelector === undefined) {
        throw new Error("TusUpload: Browser not supported.");
    }

    if (!options.endpoint) {
        throw new Error("TusUpload: Url not specified.");
    }

    if(!index.isSupported) {
        throw new Error("TusUpload: Tus upload protocol not supported.");
    }




    function handleUploadError(error){
        console.log('UploadError', this, "Failed because:", error);
    }

    
    function handleUploadProgress(bytesUploaded, bytesTotal){
        var percentage = (bytesUploaded / bytesTotal * 100).toFixed(2);
        console.log('UploadProgress', this, bytesUploaded, bytesTotal, percentage + "%");
    }
    
    function handleUploadSuccess(){
        console.log('UploadComplete', this/*, "Download %s from %s", upload.file.name, upload.url*/);
    }



    /**
     * Creates a new upload
     * 
     * @param {File} file the file to upload
     * @param {Object} metadata additional metadata to sent to the server 
     * @return {Upload}
     */
    function Upload(file, metadata){

        this.id = browserCuid();

        this.metadata = index$4({
            filename: file.name,
            upload_request_id: this.id
        }, metadata || {});

        // Create a new tus upload
        this.transport = new index.Upload(file, {
            endpoint: options.tus_endpoint,
            retryDelays: options.retryDelays,
            metadata: this.metadata,
            onError: handleUploadError.bind(this),
            onProgress: handleUploadProgress.bind(this),
            onSuccess:  handleUploadSuccess.bind(this)
        });

        this.status = UploadStatus.PENDING;
        this.uploadToken = null;

        this.file = file;

        return this;
    }


    /**
     * Stop the upload
     * 
     * @return {Upload}
     */
    Upload.prototype.stop = function(){
        this.transport.abort();
        this.status = UploadStatus.CANCELLED;
        return this;
    };

    /**
     * Starts the upload
     * 
     * @return {Upload}
     */
    Upload.prototype.start = function(){

        window.axios.post(options.endpoint, index$4({
            id: this.id,
            filename: this.metadata.filename,
            filesize: this.file.size || '',
            filetype: this.file.type || '',
        }, this.metadata )).then(function(response){

            this.uploadToken = response.data.upload_token;
            this.transport.options.metadata.token = this.uploadToken;
            this.transport.options.endpoint = this.location;
            // set the upload token in the metadata of the transport
            this.status = UploadStatus.UPLOADING;
            this.transport.start();

        }.bind(this)).catch(function (error) {
            console.log(error);
        }.bind(this));
        

        return this;
    };

    var TusUploadInner = {};

    /**
     * Upload a file
     * 
     * @param {File} file https://developer.mozilla.org/en-US/docs/Web/API/File
     * @param {Object} metadata Application level metatada about the file that should be sent to the server
     * @return {Upload} the upload entry added to the queue
     */
    TusUploadInner.upload = function(file, metadata){

        // Create a new upload
        var upload = new Upload(file, metadata);
        
        // add it to the queue
        uploadsQueue.push(upload);

        if(options.autoUpload){
            // Immediately start the upload
            upload.start();
        }

        return upload;
    };

    TusUploadInner.Status = UploadStatus;


    window.TusUpload = TusUploadInner;

    return TusUploadInner;
};

return tusuploader;

})));