import { shallowMount } from '@vue/test-utils';
import { createStore } from '~/monitoring/stores';
import DashboardHeader from '~/monitoring/components/dashboard_header.vue';
import DuplicateDashboardModal from '~/monitoring/components/duplicate_dashboard_modal.vue';
import CreateDashboardModal from '~/monitoring/components/create_dashboard_modal.vue';
import { setupAllDashboards } from '../store_utils';
import {
  dashboardGitResponse,
  selfMonitoringDashboardGitResponse,
  dashboardHeaderProps,
} from '../mock_data';
import { redirectTo } from '~/lib/utils/url_utility';

jest.mock('~/lib/utils/url_utility', () => ({
  redirectTo: jest.fn(),
  queryToObject: jest.fn(),
  mergeUrlParams: jest.requireActual('~/lib/utils/url_utility').mergeUrlParams,
}));

describe('Dashboard header', () => {
  let store;
  let wrapper;

  const findActionsMenu = () => wrapper.find('[data-testid="actions-menu"]');
  const findCreateDashboardMenuItem = () =>
    findActionsMenu().find('[data-testid="action-create-dashboard"]');
  const findCreateDashboardDuplicateItem = () =>
    findActionsMenu().find('[data-testid="action-duplicate-dashboard"]');
  const findDuplicateDashboardModal = () => wrapper.find(DuplicateDashboardModal);
  const findCreateDashboardModal = () => wrapper.find('[data-testid="create-dashboard-modal"]');

  const createShallowWrapper = (props = {}, options = {}) => {
    wrapper = shallowMount(DashboardHeader, {
      propsData: { ...dashboardHeaderProps, ...props },
      store,
      ...options,
    });
  };

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

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

  describe('when a dashboard has been duplicated in the duplicate dashboard modal', () => {
    beforeEach(() => {
      store.state.monitoringDashboard.projectPath = 'root/sandbox';
    });
    /**
     * The duplicate dashboard modal gets called both by a menu item from the
     * dashboards dropdown and by an item from the actions menu.
     *
     * This spec is context agnostic, so it addresses all cases where the
     * duplicate dashboard modal gets called.
     */
    it('redirects to the newly created dashboard', () => {
      delete window.location;
      window.location = new URL('https://localhost');

      const newDashboard = dashboardGitResponse[1];

      createShallowWrapper();

      const newDashboardUrl = 'root/sandbox/-/metrics/dashboard.yml';
      findDuplicateDashboardModal().vm.$emit('dashboardDuplicated', newDashboard);

      return wrapper.vm.$nextTick().then(() => {
        expect(redirectTo).toHaveBeenCalled();
        expect(redirectTo).toHaveBeenCalledWith(newDashboardUrl);
      });
    });
  });

  describe('actions menu', () => {
    beforeEach(() => {
      store.state.monitoringDashboard.projectPath = '';
      createShallowWrapper();
    });

    it('is rendered if projectPath is set in store', () => {
      store.state.monitoringDashboard.projectPath = 'https://path/to/project';

      return wrapper.vm.$nextTick().then(() => {
        expect(findActionsMenu().exists()).toBe(true);
      });
    });

    it('is not rendered if projectPath is not set in store', () => {
      expect(findActionsMenu().exists()).toBe(false);
    });

    it('contains a modal', () => {
      store.state.monitoringDashboard.projectPath = 'https://path/to/project';

      return wrapper.vm.$nextTick().then(() => {
        expect(findActionsMenu().contains(CreateDashboardModal)).toBe(true);
      });
    });

    const duplicableCases = [
      null, // When no path is specified, it uses the default dashboard path.
      dashboardGitResponse[0].path,
      dashboardGitResponse[2].path,
      selfMonitoringDashboardGitResponse[0].path,
    ];

    describe.each(duplicableCases)(
      'when the selected dashboard can be duplicated',
      dashboardPath => {
        it('contains a "Create New" menu item and a "Duplicate Dashboard" menu item', () => {
          store.state.monitoringDashboard.projectPath = 'https://path/to/project';
          setupAllDashboards(store, dashboardPath);

          return wrapper.vm.$nextTick().then(() => {
            expect(findCreateDashboardMenuItem().exists()).toBe(true);
            expect(findCreateDashboardDuplicateItem().exists()).toBe(true);
          });
        });
      },
    );

    const nonDuplicableCases = [
      dashboardGitResponse[1].path,
      selfMonitoringDashboardGitResponse[1].path,
    ];

    describe.each(nonDuplicableCases)(
      'when the selected dashboard cannot be duplicated',
      dashboardPath => {
        it('contains a "Create New" menu item and no "Duplicate Dashboard" menu item', () => {
          store.state.monitoringDashboard.projectPath = 'https://path/to/project';
          setupAllDashboards(store, dashboardPath);

          return wrapper.vm.$nextTick().then(() => {
            expect(findCreateDashboardMenuItem().exists()).toBe(true);
            expect(findCreateDashboardDuplicateItem().exists()).toBe(false);
          });
        });
      },
    );
  });

  describe('actions menu modals', () => {
    const url = 'https://path/to/project';

    beforeEach(() => {
      store.state.monitoringDashboard.projectPath = url;
      setupAllDashboards(store);

      createShallowWrapper();
    });

    it('Clicking on "Create New" opens up a modal', () => {
      const modalId = 'createDashboard';
      const modalTrigger = findCreateDashboardMenuItem();
      const rootEmit = jest.spyOn(wrapper.vm.$root, '$emit');

      modalTrigger.trigger('click');

      return wrapper.vm.$nextTick().then(() => {
        expect(rootEmit.mock.calls[0]).toContainEqual(modalId);
      });
    });

    it('"Create new dashboard" modal contains correct buttons', () => {
      expect(findCreateDashboardModal().props('projectPath')).toBe(url);
    });

    it('"Duplicate Dashboard" opens up a modal', () => {
      const modalId = 'duplicateDashboard';
      const modalTrigger = findCreateDashboardDuplicateItem();
      const rootEmit = jest.spyOn(wrapper.vm.$root, '$emit');

      modalTrigger.trigger('click');

      return wrapper.vm.$nextTick().then(() => {
        expect(rootEmit.mock.calls[0]).toContainEqual(modalId);
      });
    });
  });

  describe('metrics settings button', () => {
    const findSettingsButton = () => wrapper.find('[data-testid="metrics-settings-button"]');
    const url = 'https://path/to/project/settings';

    beforeEach(() => {
      createShallowWrapper();

      store.state.monitoringDashboard.canAccessOperationsSettings = false;
      store.state.monitoringDashboard.operationsSettingsPath = '';
    });

    it('is rendered when the user can access the project settings and path to settings is available', () => {
      store.state.monitoringDashboard.canAccessOperationsSettings = true;
      store.state.monitoringDashboard.operationsSettingsPath = url;

      return wrapper.vm.$nextTick(() => {
        expect(findSettingsButton().exists()).toBe(true);
      });
    });

    it('is not rendered when the user can not access the project settings', () => {
      store.state.monitoringDashboard.canAccessOperationsSettings = false;
      store.state.monitoringDashboard.operationsSettingsPath = url;

      return wrapper.vm.$nextTick(() => {
        expect(findSettingsButton().exists()).toBe(false);
      });
    });

    it('is not rendered when the path to settings is unavailable', () => {
      store.state.monitoringDashboard.canAccessOperationsSettings = false;
      store.state.monitoringDashboard.operationsSettingsPath = '';

      return wrapper.vm.$nextTick(() => {
        expect(findSettingsButton().exists()).toBe(false);
      });
    });

    it('leads to the project settings page', () => {
      store.state.monitoringDashboard.canAccessOperationsSettings = true;
      store.state.monitoringDashboard.operationsSettingsPath = url;

      return wrapper.vm.$nextTick(() => {
        expect(findSettingsButton().attributes('href')).toBe(url);
      });
    });
  });
});