import Vue from 'vue';
import DiffLineNoteForm from '~/diffs/components/diff_line_note_form.vue';
import { createStore } from '~/mr_notes/stores';
import { createComponentWithStore } from 'spec/helpers/vue_mount_component_helper';
import diffFileMockData from '../mock_data/diff_file';
import { noteableDataMock } from '../../notes/mock_data';

describe('DiffLineNoteForm', () => {
  let component;
  let diffFile;
  let diffLines;
  const getDiffFileMock = () => Object.assign({}, diffFileMockData);

  beforeEach(() => {
    diffFile = getDiffFileMock();
    diffLines = diffFile.highlighted_diff_lines;

    component = createComponentWithStore(Vue.extend(DiffLineNoteForm), createStore(), {
      diffFileHash: diffFile.file_hash,
      diffLines,
      line: diffLines[0],
      noteTargetLine: diffLines[0],
    });

    Object.defineProperties(component, {
      noteableData: { value: noteableDataMock },
      isLoggedIn: { value: true },
    });

    component.$mount();
  });

  describe('methods', () => {
    describe('handleCancelCommentForm', () => {
      it('should ask for confirmation when shouldConfirm and isDirty passed as truthy', () => {
        spyOn(window, 'confirm').and.returnValue(false);

        component.handleCancelCommentForm(true, true);

        expect(window.confirm).toHaveBeenCalled();
      });

      it('should ask for confirmation when one of the params false', () => {
        spyOn(window, 'confirm').and.returnValue(false);

        component.handleCancelCommentForm(true, false);

        expect(window.confirm).not.toHaveBeenCalled();

        component.handleCancelCommentForm(false, true);

        expect(window.confirm).not.toHaveBeenCalled();
      });

      it('should call cancelCommentForm with lineCode', done => {
        spyOn(window, 'confirm');
        spyOn(component, 'cancelCommentForm');
        spyOn(component, 'resetAutoSave');
        component.handleCancelCommentForm();

        expect(window.confirm).not.toHaveBeenCalled();
        component.$nextTick(() => {
          expect(component.cancelCommentForm).toHaveBeenCalledWith({
            lineCode: diffLines[0].line_code,
            fileHash: component.diffFileHash,
          });

          expect(component.resetAutoSave).toHaveBeenCalled();

          done();
        });
      });
    });

    describe('saveNoteForm', () => {
      it('should call saveNote action with proper params', done => {
        const saveDiffDiscussionSpy = spyOn(component, 'saveDiffDiscussion').and.returnValue(
          Promise.resolve(),
        );
        spyOnProperty(component, 'formData').and.returnValue('formData');

        component
          .handleSaveNote('note body')
          .then(() => {
            expect(saveDiffDiscussionSpy).toHaveBeenCalledWith({
              note: 'note body',
              formData: 'formData',
            });
          })
          .then(done)
          .catch(done.fail);
      });
    });
  });

  describe('mounted', () => {
    it('should init autosave', () => {
      const key = 'autosave/Note/Issue/98//DiffNote//1c497fbb3a46b78edf04cc2a2fa33f67e3ffbe2a_1_1';

      expect(component.autosave).toBeDefined();
      expect(component.autosave.key).toEqual(key);
    });
  });

  describe('template', () => {
    it('should have note form', () => {
      const { $el } = component;

      expect($el.querySelector('.js-vue-textarea')).toBeDefined();
      expect($el.querySelector('.js-vue-issue-save')).toBeDefined();
      expect($el.querySelector('.js-vue-markdown-field')).toBeDefined();
    });
  });
});
