import { GlAlert, GlEmptyState, GlLink, GlLoadingIcon, GlTabs } from '@gitlab/ui';
import Vue, { nextTick } from 'vue';
import VueApollo from 'vue-apollo';
import { trimText } from 'helpers/text_helper';
import createMockApollo from 'helpers/mock_apollo_helper';
import waitForPromises from 'helpers/wait_for_promises';
import { mountExtended } from 'helpers/vue_test_utils_helper';
import PipelineSchedules from '~/ci/pipeline_schedules/components/pipeline_schedules.vue';
import DeletePipelineScheduleModal from '~/ci/pipeline_schedules/components/delete_pipeline_schedule_modal.vue';
import TakeOwnershipModal from '~/ci/pipeline_schedules/components/take_ownership_modal.vue';
import PipelineSchedulesTable from '~/ci/pipeline_schedules/components/table/pipeline_schedules_table.vue';
import deletePipelineScheduleMutation from '~/ci/pipeline_schedules/graphql/mutations/delete_pipeline_schedule.mutation.graphql';
import playPipelineScheduleMutation from '~/ci/pipeline_schedules/graphql/mutations/play_pipeline_schedule.mutation.graphql';
import takeOwnershipMutation from '~/ci/pipeline_schedules/graphql/mutations/take_ownership.mutation.graphql';
import getPipelineSchedulesQuery from '~/ci/pipeline_schedules/graphql/queries/get_pipeline_schedules.query.graphql';
import {
  mockGetPipelineSchedulesGraphQLResponse,
  mockPipelineScheduleNodes,
  deleteMutationResponse,
  playMutationResponse,
  takeOwnershipMutationResponse,
  emptyPipelineSchedulesResponse,
} from '../mock_data';

Vue.use(VueApollo);

const $toast = {
  show: jest.fn(),
};

describe('Pipeline schedules app', () => {
  let wrapper;

  const successHandler = jest.fn().mockResolvedValue(mockGetPipelineSchedulesGraphQLResponse);
  const successEmptyHandler = jest.fn().mockResolvedValue(emptyPipelineSchedulesResponse);
  const failedHandler = jest.fn().mockRejectedValue(new Error('GraphQL error'));

  const deleteMutationHandlerSuccess = jest.fn().mockResolvedValue(deleteMutationResponse);
  const deleteMutationHandlerFailed = jest.fn().mockRejectedValue(new Error('GraphQL error'));
  const playMutationHandlerSuccess = jest.fn().mockResolvedValue(playMutationResponse);
  const playMutationHandlerFailed = jest.fn().mockRejectedValue(new Error('GraphQL error'));
  const takeOwnershipMutationHandlerSuccess = jest
    .fn()
    .mockResolvedValue(takeOwnershipMutationResponse);
  const takeOwnershipMutationHandlerFailed = jest
    .fn()
    .mockRejectedValue(new Error('GraphQL error'));

  const createMockApolloProvider = (
    requestHandlers = [[getPipelineSchedulesQuery, successHandler]],
  ) => {
    return createMockApollo(requestHandlers);
  };

  const createComponent = (requestHandlers) => {
    wrapper = mountExtended(PipelineSchedules, {
      provide: {
        fullPath: 'gitlab-org/gitlab',
      },
      mocks: {
        $toast,
      },
      apolloProvider: createMockApolloProvider(requestHandlers),
    });
  };

  const findTable = () => wrapper.findComponent(PipelineSchedulesTable);
  const findAlert = () => wrapper.findComponent(GlAlert);
  const findDeleteModal = () => wrapper.findComponent(DeletePipelineScheduleModal);
  const findLoadingIcon = () => wrapper.findComponent(GlLoadingIcon);
  const findTakeOwnershipModal = () => wrapper.findComponent(TakeOwnershipModal);
  const findTabs = () => wrapper.findComponent(GlTabs);
  const findEmptyState = () => wrapper.findComponent(GlEmptyState);
  const findLink = () => wrapper.findComponent(GlLink);
  const findNewButton = () => wrapper.findByTestId('new-schedule-button');
  const findAllTab = () => wrapper.findByTestId('pipeline-schedules-all-tab');
  const findActiveTab = () => wrapper.findByTestId('pipeline-schedules-active-tab');
  const findInactiveTab = () => wrapper.findByTestId('pipeline-schedules-inactive-tab');
  const findSchedulesCharacteristics = () =>
    wrapper.findByTestId('pipeline-schedules-characteristics');

  afterEach(() => {
    wrapper.destroy();
  });

  describe('default', () => {
    beforeEach(() => {
      createComponent();
    });

    it('displays table, tabs and new button', async () => {
      await waitForPromises();

      expect(findTable().exists()).toBe(true);
      expect(findNewButton().exists()).toBe(true);
      expect(findTabs().exists()).toBe(true);
      expect(findAlert().exists()).toBe(false);
    });

    it('handles loading state', async () => {
      expect(findLoadingIcon().exists()).toBe(true);

      await waitForPromises();

      expect(findLoadingIcon().exists()).toBe(false);
    });
  });

  describe('fetching pipeline schedules', () => {
    it('fetches query and passes an array of pipeline schedules', async () => {
      createComponent();

      expect(successHandler).toHaveBeenCalled();

      await waitForPromises();

      expect(findTable().props('schedules')).toEqual(mockPipelineScheduleNodes);
    });

    it('shows query error alert', async () => {
      createComponent([[getPipelineSchedulesQuery, failedHandler]]);

      await waitForPromises();

      expect(findAlert().text()).toBe('There was a problem fetching pipeline schedules.');
    });
  });

  describe('deleting a pipeline schedule', () => {
    it('shows delete mutation error alert', async () => {
      createComponent([
        [getPipelineSchedulesQuery, successHandler],
        [deletePipelineScheduleMutation, deleteMutationHandlerFailed],
      ]);

      await waitForPromises();

      findDeleteModal().vm.$emit('deleteSchedule');

      await waitForPromises();

      expect(findAlert().text()).toBe('There was a problem deleting the pipeline schedule.');
    });

    it('deletes pipeline schedule and refetches query', async () => {
      createComponent([
        [getPipelineSchedulesQuery, successHandler],
        [deletePipelineScheduleMutation, deleteMutationHandlerSuccess],
      ]);

      jest.spyOn(wrapper.vm.$apollo.queries.schedules, 'refetch');

      await waitForPromises();

      const scheduleId = mockPipelineScheduleNodes[0].id;

      findTable().vm.$emit('showDeleteModal', scheduleId);

      expect(wrapper.vm.$apollo.queries.schedules.refetch).not.toHaveBeenCalled();

      findDeleteModal().vm.$emit('deleteSchedule');

      await waitForPromises();

      expect(deleteMutationHandlerSuccess).toHaveBeenCalledWith({
        id: scheduleId,
      });
      expect(wrapper.vm.$apollo.queries.schedules.refetch).toHaveBeenCalled();
      expect($toast.show).toHaveBeenCalledWith('Pipeline schedule successfully deleted.');
    });

    it('handles delete modal visibility correctly', async () => {
      createComponent();

      await waitForPromises();

      expect(findDeleteModal().props('visible')).toBe(false);

      findTable().vm.$emit('showDeleteModal', mockPipelineScheduleNodes[0].id);

      await nextTick();

      expect(findDeleteModal().props('visible')).toBe(true);
      expect(findTakeOwnershipModal().props('visible')).toBe(false);

      findDeleteModal().vm.$emit('hideModal');

      await nextTick();

      expect(findDeleteModal().props('visible')).toBe(false);
    });
  });

  describe('playing a pipeline schedule', () => {
    it('shows play mutation error alert', async () => {
      createComponent([
        [getPipelineSchedulesQuery, successHandler],
        [playPipelineScheduleMutation, playMutationHandlerFailed],
      ]);

      await waitForPromises();

      findTable().vm.$emit('playPipelineSchedule');

      await waitForPromises();

      expect(findAlert().text()).toBe('There was a problem playing the pipeline schedule.');
    });

    it('plays pipeline schedule', async () => {
      createComponent([
        [getPipelineSchedulesQuery, successHandler],
        [playPipelineScheduleMutation, playMutationHandlerSuccess],
      ]);

      await waitForPromises();

      const scheduleId = mockPipelineScheduleNodes[0].id;

      findTable().vm.$emit('playPipelineSchedule', scheduleId);

      await waitForPromises();

      expect(playMutationHandlerSuccess).toHaveBeenCalledWith({
        id: scheduleId,
      });
      expect(findAlert().text()).toBe(
        'Successfully scheduled a pipeline to run. Go to the Pipelines page for details.',
      );
    });
  });

  describe('taking ownership of a pipeline schedule', () => {
    it('shows take ownership mutation error alert', async () => {
      createComponent([
        [getPipelineSchedulesQuery, successHandler],
        [takeOwnershipMutation, takeOwnershipMutationHandlerFailed],
      ]);

      await waitForPromises();

      findTakeOwnershipModal().vm.$emit('takeOwnership');

      await waitForPromises();

      expect(findAlert().text()).toBe(
        'There was a problem taking ownership of the pipeline schedule.',
      );
    });

    it('takes ownership of pipeline schedule and refetches query', async () => {
      createComponent([
        [getPipelineSchedulesQuery, successHandler],
        [takeOwnershipMutation, takeOwnershipMutationHandlerSuccess],
      ]);

      jest.spyOn(wrapper.vm.$apollo.queries.schedules, 'refetch');

      await waitForPromises();

      const scheduleId = mockPipelineScheduleNodes[1].id;

      findTable().vm.$emit('showTakeOwnershipModal', scheduleId);

      expect(wrapper.vm.$apollo.queries.schedules.refetch).not.toHaveBeenCalled();

      findTakeOwnershipModal().vm.$emit('takeOwnership');

      await waitForPromises();

      expect(takeOwnershipMutationHandlerSuccess).toHaveBeenCalledWith({
        id: scheduleId,
      });
      expect(wrapper.vm.$apollo.queries.schedules.refetch).toHaveBeenCalled();
      expect($toast.show).toHaveBeenCalledWith('Successfully taken ownership from Admin.');
    });

    it('handles take ownership modal visibility correctly', async () => {
      createComponent();

      await waitForPromises();

      expect(findTakeOwnershipModal().props('visible')).toBe(false);

      findTable().vm.$emit('showTakeOwnershipModal', mockPipelineScheduleNodes[0].id);

      await nextTick();

      expect(findTakeOwnershipModal().props('visible')).toBe(true);
      expect(findDeleteModal().props('visible')).toBe(false);

      findTakeOwnershipModal().vm.$emit('hideModal');

      await nextTick();

      expect(findTakeOwnershipModal().props('visible')).toBe(false);
    });
  });

  describe('pipeline schedule tabs', () => {
    beforeEach(async () => {
      createComponent();

      await waitForPromises();
    });

    it('displays All tab with count', () => {
      expect(trimText(findAllTab().text())).toBe(`All ${mockPipelineScheduleNodes.length}`);
    });

    it('displays Active tab with no count', () => {
      expect(findActiveTab().text()).toBe('Active');
    });

    it('displays Inactive tab with no count', () => {
      expect(findInactiveTab().text()).toBe('Inactive');
    });

    it('should refetch the schedules query on a tab click', async () => {
      jest.spyOn(wrapper.vm.$apollo.queries.schedules, 'refetch').mockImplementation(jest.fn());

      expect(wrapper.vm.$apollo.queries.schedules.refetch).toHaveBeenCalledTimes(0);

      await findAllTab().trigger('click');

      expect(wrapper.vm.$apollo.queries.schedules.refetch).toHaveBeenCalledTimes(1);
    });
  });

  describe('Empty pipeline schedules response', () => {
    it('should show an empty state', async () => {
      createComponent([[getPipelineSchedulesQuery, successEmptyHandler]]);

      await waitForPromises();

      const schedulesCharacteristics = findSchedulesCharacteristics();

      expect(findEmptyState().exists()).toBe(true);
      expect(schedulesCharacteristics.text()).toContain('Runs for a specific branch or tag.');
      expect(schedulesCharacteristics.text()).toContain('Can have custom CI/CD variables.');
      expect(schedulesCharacteristics.text()).toContain(
        'Runs with the same project permissions as the schedule owner.',
      );

      expect(findLink().exists()).toBe(true);
      expect(findLink().text()).toContain('scheduled pipelines documentation.');
    });
  });
});