import Vue, { nextTick } from 'vue';
import { mountComponentWithStore } from 'helpers/vue_mount_component_helper';
import Bar from '~/ide/components/file_templates/bar.vue';
import { createStore } from '~/ide/stores';
import { file } from '../../helpers';

describe('IDE file templates bar component', () => {
  let Component;
  let vm;

  beforeAll(() => {
    Component = Vue.extend(Bar);
  });

  beforeEach(() => {
    const store = createStore();

    store.state.openFiles.push({
      ...file('file'),
      opened: true,
      active: true,
    });

    vm = mountComponentWithStore(Component, { store });
  });

  afterEach(() => {
    vm.$destroy();
  });

  describe('template type dropdown', () => {
    it('renders dropdown component', () => {
      expect(vm.$el.querySelector('.dropdown').textContent).toContain('Choose a type');
    });

    it('calls setSelectedTemplateType when clicking item', () => {
      jest.spyOn(vm, 'setSelectedTemplateType').mockImplementation();

      vm.$el.querySelector('.dropdown-content button').click();

      expect(vm.setSelectedTemplateType).toHaveBeenCalledWith({
        name: '.gitlab-ci.yml',
        key: 'gitlab_ci_ymls',
      });
    });
  });

  describe('template dropdown', () => {
    beforeEach(async () => {
      vm.$store.state.fileTemplates.templates = [
        {
          name: 'test',
        },
      ];
      vm.$store.state.fileTemplates.selectedTemplateType = {
        name: '.gitlab-ci.yml',
        key: 'gitlab_ci_ymls',
      };

      await nextTick();
    });

    it('renders dropdown component', () => {
      expect(vm.$el.querySelectorAll('.dropdown')[1].textContent).toContain('Choose a template');
    });

    it('calls fetchTemplate on click', () => {
      jest.spyOn(vm, 'fetchTemplate').mockImplementation();

      vm.$el.querySelectorAll('.dropdown-content')[1].querySelector('button').click();

      expect(vm.fetchTemplate).toHaveBeenCalledWith({
        name: 'test',
      });
    });
  });

  it('shows undo button if updateSuccess is true', async () => {
    vm.$store.state.fileTemplates.updateSuccess = true;

    await nextTick();
    expect(vm.$el.querySelector('.btn-default').style.display).not.toBe('none');
  });

  it('calls undoFileTemplate when clicking undo button', () => {
    jest.spyOn(vm, 'undoFileTemplate').mockImplementation();

    vm.$el.querySelector('.btn-default').click();

    expect(vm.undoFileTemplate).toHaveBeenCalled();
  });

  it('calls setSelectedTemplateType if activeFile name matches a template', async () => {
    const fileName = '.gitlab-ci.yml';

    jest.spyOn(vm, 'setSelectedTemplateType').mockImplementation(() => {});
    vm.$store.state.openFiles[0].name = fileName;

    vm.setInitialType();

    await nextTick();
    expect(vm.setSelectedTemplateType).toHaveBeenCalledWith({
      name: fileName,
      key: 'gitlab_ci_ymls',
    });
  });
});