/*!
 * @license
 * Copyright 2016 Alfresco Software, Ltd.
 *
 * Licensed 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.
 */

import { it, describe, beforeEach, expect } from 'angular2/testing';
import { UploadService } from '../../src/services/upload.service';
import { FileModel } from '../../src/models/file.model';

declare let jasmine: any;

describe('AlfrescoUploadService', () => {
  let service: UploadService,
    options: any,
    xhr: XMLHttpRequest,
    doneFn: any,
    errorFn: any;

  beforeEach(() => {
    jasmine.Ajax.install();

    doneFn = jasmine.createSpy('success');
    errorFn = jasmine.createSpy('error');
    xhr = new XMLHttpRequest();
    xhr.onreadystatechange = function () {
      if (this.readyState === this.DONE && this.status === 200) {
        doneFn(this.responseText);
      } else if (this.readyState === this.DONE && this.status === 404) {
        errorFn(this.responseText);
      }
    };
    xhr.abort = jasmine.createSpy('abort');

    options = {
      url: '/some/cool/url',
      withCredentials: true,
      authToken: btoa('fakeadmin:fakeadmin'),
      authTokenPrefix: 'Basic',
      fieldName: 'fakeFileData',
      formFields: {
        siteid: 'fakeSite',
        containerid: 'fakeFolder'
      }
    };
    service = new UploadService(options);
  });

  afterEach(() => {
    jasmine.Ajax.uninstall();
  });

  it('should return an empty queue if no elements are added', () => {
    expect(service.getQueue().length).toEqual(0);
  });

  it('should add an element in the queue and returns it', () => {
    let filesFake = [{name: 'fake-name', size: 10}];
    service.addToQueue(filesFake);
    expect(service.getQueue().length).toEqual(1);
  });

  it('should add two elements in the queue and returns them', () => {
    let filesFake = [{name: 'fake-name', size: 10}, {name: 'fake-name2', size: 20}];
    service.addToQueue(filesFake);
    expect(service.getQueue().length).toEqual(2);
  });

  it('should make XHR done request after the file is added in the queue', () => {
    service.setXMLHttpRequest(xhr);
    let filesFake = [{name: 'fake-name', size: 10}];
    service.addToQueue(filesFake);
    service.uploadFilesInTheQueue('');
    expect(jasmine.Ajax.requests.mostRecent().url).toBe('/some/cool/url');
    expect(doneFn).not.toHaveBeenCalled();
    jasmine.Ajax.requests.mostRecent().respondWith({
      'status': 200,
      contentType: 'text/plain',
      responseText: 'File uploaded'
    });
    expect(doneFn).toHaveBeenCalledWith('File uploaded');
  });

  it('should make XHR error request after an error occur', () => {
    service.setXMLHttpRequest(xhr);
    let filesFake = [{name: 'fake-name', size: 10}];
    service.addToQueue(filesFake);
    service.uploadFilesInTheQueue('');
    expect(jasmine.Ajax.requests.mostRecent().url).toBe('/some/cool/url');
    expect(doneFn).not.toHaveBeenCalled();
    jasmine.Ajax.requests.mostRecent().respondWith({
      'status': 404,
      contentType: 'text/plain',
      responseText: 'Error file uploaded'
    });
    expect(errorFn).toHaveBeenCalledWith('Error file uploaded');
  });

  it('should make XHR abort request after the xhr abort is called', () => {
    service.setXMLHttpRequest(xhr);
    let filesFake = [{name: 'fake-name', size: 10}];
    service.addToQueue(filesFake);
    service.uploadFilesInTheQueue('');
    let file = service.getQueue();
    file[0].setAbort();
    expect(xhr.abort).toHaveBeenCalled();
  });

  it('should make XHR done request after the file is upload', () => {
    service.setXMLHttpRequest(xhr);
    let filesFake = {name: 'fake-name', size: 10};

    let uploadingFileModel = new FileModel(filesFake);
    service.uploadFile(uploadingFileModel);

    expect(jasmine.Ajax.requests.mostRecent().url).toBe('/some/cool/url');
    expect(doneFn).not.toHaveBeenCalled();
    jasmine.Ajax.requests.mostRecent().respondWith({
      'status': 200,
      contentType: 'text/plain',
      responseText: 'File uploaded'
    });
    expect(doneFn).toHaveBeenCalledWith('File uploaded');
  });

});