/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 { Provider } from 'react-redux';
import React from 'react';
import { mount, shallow } from 'enzyme';
import sinon from 'sinon';
import { Tabs as BootstrapTabs, Tab as BootstrapTab } from 'react-bootstrap';

import DashboardComponent from 'src/dashboard/containers/DashboardComponent';
import DeleteComponentButton from 'src/dashboard/components/DeleteComponentButton';
import HoverMenu from 'src/dashboard/components/menu/HoverMenu';
import DragDroppable from 'src/dashboard/components/dnd/DragDroppable';
import Tabs from 'src/dashboard/components/gridComponents/Tabs';
import { DASHBOARD_ROOT_ID } from 'src/dashboard/util/constants';
import WithDragDropContext from '../../helpers/WithDragDropContext';
import { dashboardLayoutWithTabs } from '../../fixtures/mockDashboardLayout';
import { mockStoreWithTabs } from '../../fixtures/mockStore';

describe('Tabs', () => {
  const props = {
    id: 'TABS_ID',
    parentId: DASHBOARD_ROOT_ID,
    component: dashboardLayoutWithTabs.present.TABS_ID,
    parentComponent: dashboardLayoutWithTabs.present[DASHBOARD_ROOT_ID],
    index: 0,
    depth: 1,
    renderTabContent: true,
    editMode: false,
    availableColumnCount: 12,
    columnWidth: 50,
    onResizeStart() {},
    onResize() {},
    onResizeStop() {},
    createComponent() {},
    handleComponentDrop() {},
    onChangeTab() {},
    deleteComponent() {},
    updateComponents() {},
    logEvent() {},
  };

  function setup(overrideProps) {
    // We have to wrap provide DragDropContext for the underlying DragDroppable
    // otherwise we cannot assert on DragDroppable children
    const wrapper = mount(
      <Provider store={mockStoreWithTabs}>
        <WithDragDropContext>
          <Tabs {...props} {...overrideProps} />
        </WithDragDropContext>
      </Provider>,
    );
    return wrapper;
  }

  it('should render a DragDroppable', () => {
    // test just Tabs with no children DragDroppables
    const wrapper = setup({ component: { ...props.component, children: [] } });
    expect(wrapper.find(DragDroppable)).toHaveLength(1);
  });

  it('should render BootstrapTabs', () => {
    const wrapper = setup();
    expect(wrapper.find(BootstrapTabs)).toHaveLength(1);
  });

  it('should set animation=true, mountOnEnter=true, and unmounOnExit=false on BootstrapTabs for perf', () => {
    const wrapper = setup();
    const tabProps = wrapper.find(BootstrapTabs).props();
    expect(tabProps.animation).toBe(true);
    expect(tabProps.mountOnEnter).toBe(true);
    expect(tabProps.unmountOnExit).toBe(false);
  });

  it('should render a BootstrapTab for each child', () => {
    const wrapper = setup();
    expect(wrapper.find(BootstrapTab)).toHaveLength(
      props.component.children.length,
    );
  });

  it('should render an extra (+) BootstrapTab in editMode', () => {
    const wrapper = setup({ editMode: true });
    expect(wrapper.find(BootstrapTab)).toHaveLength(
      props.component.children.length + 1,
    );
  });

  it('should render a DashboardComponent for each child', () => {
    // note: this does not test Tab content
    const wrapper = setup({ renderTabContent: false });
    expect(wrapper.find(DashboardComponent)).toHaveLength(
      props.component.children.length,
    );
  });

  it('should call createComponent if the (+) tab is clicked', () => {
    const createComponent = sinon.spy();
    const wrapper = setup({ editMode: true, createComponent });
    wrapper
      .find('.dashboard-component-tabs .nav-tabs a')
      .last()
      .simulate('click');

    expect(createComponent.callCount).toBe(1);
  });

  it('should call onChangeTab when a tab is clicked', () => {
    const onChangeTab = sinon.spy();
    const wrapper = setup({ editMode: true, onChangeTab });
    wrapper
      .find('.dashboard-component-tabs .nav-tabs a')
      .at(1) // will not call if it is already selected
      .simulate('click');

    expect(onChangeTab.callCount).toBe(1);
  });

  it('should not call onChangeTab when anchor link is clicked', () => {
    const onChangeTab = sinon.spy();
    const wrapper = setup({ editMode: true, onChangeTab });
    wrapper
      .find('.dashboard-component-tabs .nav-tabs a .short-link-trigger')
      .at(1) // will not call if it is already selected
      .simulate('click');

    expect(onChangeTab.callCount).toBe(0);
  });

  it('should render a HoverMenu in editMode', () => {
    let wrapper = setup();
    expect(wrapper.find(HoverMenu)).toHaveLength(0);

    wrapper = setup({ editMode: true });
    expect(wrapper.find(HoverMenu)).toHaveLength(1);
  });

  it('should render a DeleteComponentButton in editMode', () => {
    let wrapper = setup();
    expect(wrapper.find(DeleteComponentButton)).toHaveLength(0);

    wrapper = setup({ editMode: true });
    expect(wrapper.find(DeleteComponentButton)).toHaveLength(1);
  });

  it('should call deleteComponent when deleted', () => {
    const deleteComponent = sinon.spy();
    const wrapper = setup({ editMode: true, deleteComponent });
    wrapper.find(DeleteComponentButton).simulate('click');

    expect(deleteComponent.callCount).toBe(1);
  });

  it('should direct display direct-link tab', () => {
    let wrapper = shallow(<Tabs {...props} />);
    // default show first tab child
    expect(wrapper.state('tabIndex')).toBe(0);

    // display child in directPathToChild list
    const directPathToChild = dashboardLayoutWithTabs.present.ROW_ID2.parents.slice();
    const directLinkProps = {
      ...props,
      directPathToChild,
    };

    wrapper = shallow(<Tabs {...directLinkProps} />);
    expect(wrapper.state('tabIndex')).toBe(1);
  });
});