import { fireEvent, render, screen, waitFor } from '@testing-library/react';
import userEvent from '@testing-library/user-event';
import React from 'react';
import { Provider } from 'react-redux';
import { Router } from 'react-router-dom';
import { selectOptionInTest } from 'test/helpers/selectOptionInTest';

import { locationService } from '@grafana/runtime';
import { getRouteComponentProps } from 'app/core/navigation/__mocks__/routeProps';

import { mockToolkitActionCreator } from '../../../../test/core/redux/mocks';
import { addRootReducer, configureStore } from '../../../store/configureStore';
import { SchedulingFrequency } from '../../types';
import reportsReducers, { initialState, updateReportProp } from '../state/reducers';

import { Schedule, Props } from './Schedule';

beforeEach(() => {
  jest.clearAllMocks();
});

jest.mock('app/core/services/backend_srv', () => {
  return {
    backendSrv: {
      search: async () => Promise.resolve([{ id: 1, uid: 'test', value: 1, title: 'test db' }]),
    },
  };
});

jest.mock('@grafana/runtime/src/config', () => ({
  config: {
    buildInfo: {},
    licenseInfo: {
      enabledFeatures: { 'reports.email': true },
    },
    featureToggles: {
      accesscontrol: true,
    },
    bootData: { navTree: [], user: {} },
    rendererAvailable: true,
  },
}));

jest.mock('app/core/core', () => {
  return {
    contextSrv: {
      hasPermission: () => true,
    },
  };
});

const mockUpdate = jest.fn() as any;
const blankReport = initialState.report;
const testReport = {
  ...blankReport,
  id: 1,
  name: 'Test report',
  dashboardId: 1,
  dashboardName: 'Test dashboard',
  recipients: 'test@me.com',
};

const setup = (propOverrides?: Partial<Props>) => {
  addRootReducer(reportsReducers);
  const store = configureStore();
  const props: Props = {
    ...getRouteComponentProps(),
    report: blankReport,
    updateReportProp: mockToolkitActionCreator(updateReportProp),
    ...propOverrides,
  };

  return render(
    <Provider store={store}>
      <Router history={locationService.getHistory()}>
        <Schedule {...props} />
      </Router>
    </Provider>
  );
};

describe('Report Scheduling', () => {
  const currentDate = new Date('2020-01-01T13:30:18.989Z');
  beforeAll(() => {
    // Lock current date time
    jest.spyOn(Date, 'now').mockImplementation(() => currentDate.valueOf());
  });

  it('should render scheduler with default values applied', async () => {
    setup();
    expect(await screen.findByText(/3. Schedule/i)).toBeInTheDocument();
    expect(screen.getByRole('radio', { name: 'Weekly' })).toBeChecked();
    expect(screen.getByRole('radio', { name: 'Send now' })).toBeChecked();
    expect(
      screen.getByText('The report will be sent immediately after it is saved and will be sent every week.')
    ).toBeInTheDocument();
    expect(screen.queryByLabelText(/report schedule start date/i)).toBeInTheDocument();
    expect(screen.getByLabelText(/report schedule start date/i)).toHaveValue('');
    expect(screen.queryByText(/start time/i)).not.toBeVisible();
    expect(screen.getByText(/time zone/i)).toBeInTheDocument();
    expect(screen.getByLabelText(/report schedule end date/i)).toHaveValue('');
    expect(screen.queryByText(/end time/i)).not.toBeInTheDocument();

    // Select "Send later"
    fireEvent.click(screen.getByRole('radio', { name: /later/ }));
    expect(screen.getByLabelText(/report schedule start date/i)).toHaveValue('01/01/2020');
    expect(screen.getByText(/start time/i)).toBeVisible();
    expect(screen.getByText(/time zone/i)).toBeVisible();
    expect(screen.getByLabelText(/report schedule end date/i)).toHaveValue('');
    expect(screen.queryByText(/end time/i)).not.toBeInTheDocument();
  });

  describe('Correct fields for each frequency are displayed when creating a report', () => {
    beforeEach(() => {
      setup();
    });

    const selectDate = (date: string, type = 'start') => {
      const re = type === 'start' ? /report schedule start date/i : /report schedule end date/i;
      fireEvent.click(screen.getByLabelText(re));
      fireEvent.click(screen.getByRole('button', { name: date }));
    };

    it('once', () => {
      fireEvent.click(screen.getByRole('radio', { name: /once/i }));
      expect(screen.getByRole('radio', { name: 'Send now' })).toBeChecked();
      expect(screen.queryByLabelText(/report schedule end date/i)).not.toBeInTheDocument();
      expect(screen.getByText('The report will be sent immediately after it is saved.')).toBeInTheDocument();
      fireEvent.click(screen.getByRole('radio', { name: /later/i }));
      expect(screen.getByLabelText(/report schedule start date/i)).toHaveValue('01/01/2020');
      expect(screen.getByText(/start time/i)).toBeVisible();
      expect(screen.getByText(/The report will be sent: Once on January 1, 2020/i)).toBeInTheDocument();
      expect(screen.queryByLabelText(/report schedule end date/i)).not.toBeInTheDocument();
    });

    it('hourly', () => {
      fireEvent.click(screen.getByRole('radio', { name: /hourly/i }));
      expect(screen.getByRole('radio', { name: 'Send now' })).toBeChecked();
      expect(screen.getByRole('checkbox', { name: /monday to friday/i })).toBeInTheDocument();
      expect(
        screen.getByText('The report will be sent immediately after it is saved and will be sent every hour.')
      ).toBeInTheDocument();
      fireEvent.click(screen.getByRole('radio', { name: /later/i }));
      selectDate('January 1, 2020');
      expect(screen.getByLabelText(/report schedule start date/i)).toHaveValue('01/01/2020');
      expect(screen.getByText(/start time/i)).toBeVisible();
      expect(screen.queryByText(/end time/i)).not.toBeInTheDocument();
      expect(screen.getByRole('checkbox', { name: /monday to friday/i })).toBeInTheDocument();
      expect(screen.getByText(/The report will be sent: Hourly at minute 00/i)).toBeInTheDocument();
      expect(screen.getByLabelText(/report schedule end date/i)).toHaveValue('');
      fireEvent.click(screen.getByLabelText(/report schedule end date/i));
      fireEvent.click(screen.getByRole('button', { name: 'January 11, 2020' }));
      expect(screen.getByLabelText(/report schedule end date/i)).toHaveValue('01/11/2020');
      expect(screen.getByText(/end time/i)).toBeInTheDocument();
      expect(
        screen.getByText(/The report will be sent: Hourly at minute 00, January 1, 2020 - January 11, 2020/i)
      ).toBeInTheDocument();
    });

    it('daily', () => {
      fireEvent.click(screen.getByRole('radio', { name: /daily/i }));
      expect(screen.getByRole('radio', { name: 'Send now' })).toBeChecked();
      fireEvent.click(screen.getByRole('radio', { name: /later/i }));
      expect(screen.queryByText(/end time/i)).not.toBeInTheDocument();
      expect(screen.getByRole('checkbox', { name: /monday to friday/i })).toBeInTheDocument();
      selectDate('January 1, 2020');
      selectDate('January 11, 2020', 'end');
      expect(screen.getByText(/January 1, 2020 - January 11, 2020/i));
      fireEvent.click(screen.getByRole('radio', { name: /send now/i }));
      // start date and time fields are hidden, not removed from DOM
      expect(screen.queryByLabelText(/report schedule start date/i)).not.toBeVisible();
      expect(screen.queryByText(/start time/i)).not.toBeVisible();
      expect(screen.getByLabelText(/report schedule end date/i)).toBeInTheDocument();
      expect(screen.getByRole('checkbox', { name: /monday to friday/i })).toBeInTheDocument();
      expect(
        screen.getByText(/The report will be sent immediately after it is saved and will be sent every day./i)
      ).toBeInTheDocument();
    });
    it('weekly', () => {
      fireEvent.click(screen.getByRole('radio', { name: /weekly/i }));
      expect(screen.queryByLabelText(/report schedule start date/i)).not.toBeVisible();
      expect(screen.queryByText(/start time/i)).not.toBeVisible();
      expect(screen.getByLabelText(/report schedule end date/i)).toBeInTheDocument();
      expect(screen.queryByRole('checkbox', { name: /monday to friday/i })).not.toBeInTheDocument();
      expect(
        screen.getByText(/The report will be sent immediately after it is saved and will be sent every week./i)
      ).toBeInTheDocument();
      fireEvent.click(screen.getByRole('radio', { name: /later/i }));
      selectDate('January 1, 2020');
      selectDate('January 11, 2020', 'end');
      expect(screen.getByLabelText(/report schedule start date/i)).toHaveValue('01/01/2020');
      expect(screen.getByText(/start time/i)).toBeVisible();
      expect(screen.queryByText(/end time/i)).not.toBeInTheDocument();
      expect(screen.getByText(/The report will be sent: Every Wednesday at 00:00/i));
    });
    it('monthly', async () => {
      fireEvent.click(screen.getByRole('radio', { name: /monthly/i }));
      expect(screen.getByRole('radio', { name: 'Send now' })).toBeChecked();
      fireEvent.click(screen.getByRole('radio', { name: /later/i }));
      expect(screen.getByRole('checkbox', { name: /send on the last day of month/i })).toBeInTheDocument();
      selectDate('January 1, 2020');
      selectDate('January 11, 2020', 'end');
      expect(screen.getByLabelText(/report schedule start date/i)).toHaveValue('01/01/2020');
      expect(screen.getByText(/start time/i)).toBeVisible();
      expect(screen.getByLabelText(/report schedule end date/i)).toBeVisible();
      expect(screen.queryByText(/end time/i)).not.toBeInTheDocument();
      expect(
        screen.getByText(
          /The report will be sent: Monthly on 1st day at 00:00 UTC-05:00, January 1, 2020 - January 11, 2020./i
        )
      ).toBeInTheDocument();
      fireEvent.click(screen.getByRole('checkbox', { name: /send on the last day of month/i }));
      expect(screen.getByLabelText(/report schedule start date/i)).toHaveValue('01/31/2020');
      await userEvent.clear(screen.getByLabelText(/report schedule end date/i));
      expect(screen.getByText(/The report will be sent: Monthly on the last day at 00:00./i)).toBeInTheDocument();
      fireEvent.click(screen.getByRole('radio', { name: /send now/i }));
      expect(screen.queryByRole('checkbox', { name: /send on the last day of month/i })).not.toBeInTheDocument();
      expect(screen.getByLabelText(/report schedule start date/i)).not.toBeVisible();
      expect(screen.getByText(/start time/i)).not.toBeVisible();
      expect(screen.getByLabelText(/report schedule end date/i)).toBeInTheDocument();
      expect(screen.queryByText(/end time/i)).not.toBeInTheDocument();
      expect(
        screen.getByText('The report will be sent immediately after it is saved and will be sent every month.')
      ).toBeInTheDocument();
    });

    it('custom', async () => {
      fireEvent.click(screen.getByRole('radio', { name: /custom/i }));
      expect(screen.getByRole('radio', { name: /send now/i })).toBeChecked();
      expect(screen.getByLabelText(/repeat every/i)).toBeInTheDocument();
      expect(screen.getByLabelText(/custom frequency/i)).toBeInTheDocument();
      expect(screen.getByRole('checkbox', { name: /monday to friday/i })).toBeInTheDocument();
      expect(
        screen.getByText(/The report will be sent immediately after it is saved and will be sent every 2 hours./i)
      ).toBeInTheDocument();
      fireEvent.click(screen.getByRole('radio', { name: /later/i }));
      expect(screen.getByText(/The report will be sent: Every 2 hours./i)).toBeInTheDocument();
      expect(screen.queryByText(/end time/i)).not.toBeInTheDocument();
      expect(screen.getByLabelText(/report schedule end date/i)).toBeVisible();
      selectDate('January 1, 2020');
      selectDate('January 11, 2020', 'end');
      expect(screen.getByText(/end time/i)).toBeInTheDocument();
      await selectOptionInTest(screen.getByLabelText(/custom frequency/i), 'months');
      expect(screen.queryByText(/end time/i)).not.toBeInTheDocument();
      expect(
        screen.getByText(/The report will be sent: Every 2 months, January 1, 2020 - January 11, 2020./i)
      ).toBeInTheDocument();
    });

    it('never', () => {
      fireEvent.click(screen.getByRole('radio', { name: /never/i }));
      expect(screen.queryByRole('radio', { name: /send now/i })).not.toBeInTheDocument();
      expect(screen.queryByLabelText(/report schedule start date/i)).not.toBeVisible();
      expect(screen.queryByText(/start time/i)).not.toBeVisible();
      expect(screen.queryByText(/end time/i)).not.toBeInTheDocument();
      expect(screen.queryByLabelText(/report schedule end date/i)).not.toBeInTheDocument();
    });
  });

  describe('Correct fields for each frequency are displayed when editing a report', () => {
    const schedule = {
      startDate: '2020-03-16T03:20:00+01:00',
      endDate: null,
      frequency: SchedulingFrequency.Daily,
      intervalFrequency: '',
      intervalAmount: 0,
      workdaysOnly: false,
      dayOfMonth: '16',
      timeZone: 'Africa/Niamey',
    } as any;

    it('once', () => {
      setup({ report: { ...testReport, schedule: { ...schedule, frequency: SchedulingFrequency.Once } } });
      expect(screen.getByRole('radio', { name: /once/i })).toBeChecked();
      expect(screen.getByRole('radio', { name: /later/i })).toBeChecked();
      expect(screen.getByLabelText(/report schedule start date/i)).toBeVisible();
      expect(screen.getByLabelText(/report schedule start date/i)).toHaveValue('03/16/2020');
      expect(screen.getByText('Africa/Niamey')).toBeInTheDocument();
      expect(screen.getByDisplayValue('03:20')).toBeInTheDocument();
      expect(screen.queryByLabelText(/report schedule end date/i)).not.toBeInTheDocument();
      expect(screen.queryByRole('checkbox', { name: /monday to friday/i })).not.toBeInTheDocument();
      expect(screen.getByText('The report will be sent: Once on March 16, 2020.')).toBeInTheDocument();
    });

    it('hourly', () => {
      setup({
        report: {
          ...testReport,
          schedule: {
            ...schedule,
            frequency: SchedulingFrequency.Hourly,
            endDate: '2020-04-16T06:40:00+01:00',
            workdaysOnly: true,
          },
        },
      });

      expect(screen.getByRole('radio', { name: /hourly/i })).toBeChecked();
      expect(screen.getByRole('radio', { name: /later/i })).toBeChecked();
      expect(screen.getByLabelText(/report schedule start date/i)).toBeVisible();
      expect(screen.getByLabelText(/report schedule start date/i)).toHaveValue('03/16/2020');
      expect(screen.getByText('Africa/Niamey')).toBeInTheDocument();
      expect(screen.getByDisplayValue('03:20')).toBeInTheDocument();
      expect(screen.getByLabelText(/report schedule end date/i)).toBeInTheDocument();
      expect(screen.getByLabelText(/report schedule end date/i)).toHaveValue('04/16/2020');
      expect(screen.getByDisplayValue('06:40')).toBeInTheDocument();
      expect(screen.getByRole('checkbox', { name: /monday to friday/i })).toBeChecked();
      expect(
        screen.getByText(
          /The report will be sent: Hourly at minute 20, March 16, 2020 - April 16, 2020, Monday to Friday/i
        )
      ).toBeInTheDocument();
    });

    it('daily', () => {
      setup({ report: { ...testReport, schedule } });
      expect(screen.getByRole('radio', { name: /daily/i })).toBeChecked();
      expect(screen.getByRole('radio', { name: /later/i })).toBeChecked();
      expect(screen.getByLabelText(/report schedule start date/i)).toBeVisible();
      expect(screen.getByLabelText(/report schedule start date/i)).toHaveValue('03/16/2020');
      expect(screen.getByText('Africa/Niamey')).toBeInTheDocument();
      expect(screen.getByDisplayValue('03:20')).toBeInTheDocument();
      expect(screen.getByLabelText(/report schedule end date/i)).toBeInTheDocument();
      expect(screen.getByLabelText(/report schedule end date/i)).toHaveValue('');
      expect(screen.getByRole('checkbox', { name: /monday to friday/i })).not.toBeChecked();
      expect(screen.getByText('The report will be sent: Daily at 03:20 UTC+01:00.')).toBeInTheDocument();
    });

    it('weekly', () => {
      setup({ report: { ...testReport, schedule: { ...schedule, frequency: SchedulingFrequency.Weekly } } });
      expect(screen.getByRole('radio', { name: /weekly/i })).toBeChecked();
      expect(screen.getByRole('radio', { name: /later/i })).toBeChecked();
      expect(screen.getByLabelText(/report schedule start date/i)).toBeVisible();
      expect(screen.getByLabelText(/report schedule start date/i)).toHaveValue('03/16/2020');
      expect(screen.getByText('Africa/Niamey')).toBeInTheDocument();
      expect(screen.getByDisplayValue('03:20')).toBeInTheDocument();
      expect(screen.getByLabelText(/report schedule end date/i)).toBeInTheDocument();
      expect(screen.getByLabelText(/report schedule end date/i)).toHaveValue('');
      expect(screen.queryByRole('checkbox', { name: /monday to friday/i })).not.toBeInTheDocument();
      expect(screen.getByText('The report will be sent: Every Monday at 03:20 UTC+01:00.')).toBeInTheDocument();
    });

    it('monthly', () => {
      setup({
        report: {
          ...testReport,
          schedule: { ...schedule, frequency: SchedulingFrequency.Monthly, dayOfMonth: 'last' },
        },
      });
      expect(screen.getByRole('radio', { name: /monthly/i })).toBeChecked();
      expect(screen.getByRole('radio', { name: /later/i })).toBeChecked();
      expect(screen.getByLabelText(/report schedule start date/i)).toBeVisible();
      expect(screen.getByLabelText(/report schedule start date/i)).toHaveValue('03/16/2020');
      expect(screen.getByText('Africa/Niamey')).toBeInTheDocument();
      expect(screen.getByDisplayValue('03:20')).toBeInTheDocument();
      expect(screen.getByLabelText(/report schedule end date/i)).toBeInTheDocument();
      expect(screen.getByLabelText(/report schedule end date/i)).toHaveValue('');
      expect(screen.queryByRole('checkbox', { name: /monday to friday/i })).not.toBeInTheDocument();
      expect(screen.getByRole('checkbox', { name: /send on the last day of month/i })).toBeChecked();
      expect(
        screen.getByText('The report will be sent: Monthly on the last day at 03:20 UTC+01:00.')
      ).toBeInTheDocument();
    });

    it('custom (months)', () => {
      setup({
        report: {
          ...testReport,
          schedule: {
            ...schedule,
            frequency: SchedulingFrequency.Custom,
            intervalFrequency: 'months',
            intervalAmount: '3',
          },
        },
      });
      expect(screen.getByRole('radio', { name: /custom/i })).toBeChecked();
      expect(screen.getByRole('radio', { name: /later/i })).toBeChecked();
      expect(screen.getByLabelText(/report schedule start date/i)).toBeVisible();
      expect(screen.getByLabelText(/report schedule start date/i)).toHaveValue('03/16/2020');
      expect(screen.getByText('Africa/Niamey')).toBeInTheDocument();
      expect(screen.getByDisplayValue('03:20')).toBeInTheDocument();
      expect(screen.getByLabelText(/report schedule end date/i)).toBeInTheDocument();
      expect(screen.getByLabelText(/report schedule end date/i)).toHaveValue('');
      expect(screen.queryByRole('checkbox', { name: /monday to friday/i })).not.toBeInTheDocument();
      expect(screen.queryByRole('checkbox', { name: /send on the last day of month/i })).not.toBeInTheDocument();
      expect(screen.getByText('The report will be sent: Every 3 months, from March 16, 2020.')).toBeInTheDocument();
    });

    it('custom (hours)', () => {
      setup({
        report: {
          ...testReport,
          schedule: {
            ...schedule,
            frequency: SchedulingFrequency.Custom,
            intervalFrequency: 'hours',
            intervalAmount: '3',
            workdaysOnly: true,
          },
        },
      });
      expect(screen.getByRole('radio', { name: /custom/i })).toBeChecked();
      expect(screen.getByRole('radio', { name: /later/i })).toBeChecked();
      expect(screen.getByRole('checkbox', { name: /monday to friday/i })).toBeChecked();
      expect(screen.queryByRole('checkbox', { name: /send on the last day of month/i })).not.toBeInTheDocument();
      expect(
        screen.getByText('The report will be sent: Every 3 hours, from 03:20 UTC+01:00, Monday to Friday.')
      ).toBeInTheDocument();
    });

    it('never ', () => {
      setup({ report: { ...testReport, schedule: { ...schedule, frequency: SchedulingFrequency.Never } } });
      expect(screen.getByRole('radio', { name: /never/i })).toBeChecked();
      expect(screen.queryByRole('radio', { name: /later/i })).not.toBeInTheDocument();
      expect(screen.getByLabelText(/report schedule start date/i)).not.toBeVisible();
      expect(screen.getByText('Africa/Niamey')).not.toBeVisible();
      expect(screen.getByDisplayValue('03:20')).not.toBeVisible();
      expect(screen.queryByLabelText(/report schedule end date/i)).not.toBeInTheDocument();
      expect(screen.queryByRole('checkbox', { name: /monday to friday/i })).not.toBeInTheDocument();
      expect(screen.queryByRole('checkbox', { name: /send on the last day of month/i })).not.toBeInTheDocument();
      expect(screen.getByText('The report will not be sent.')).toBeInTheDocument();
    });
  });

  it('should save correct schedule date for hourly schedule', async () => {
    setup({
      report: { ...testReport, schedule: { ...testReport.schedule, startDate: '2021-01-11', endDate: '2021-02-11' } },
      updateReportProp: mockUpdate,
    });
    expect(await screen.findByText(/3. Schedule/i)).toBeInTheDocument();
    fireEvent.click(screen.getByRole('radio', { name: 'Monthly' }));

    fireEvent.click(screen.getByLabelText(/report schedule start date/i));
    fireEvent.click(screen.getByRole('button', { name: 'January 11, 2021' }));
    expect(screen.getByLabelText(/report schedule start date/i)).toHaveValue('01/11/2021');

    await selectOptionInTest(screen.getByDisplayValue('00:00'), '04');

    // Close the time picker overlay by clicking away
    await userEvent.click(screen.getByRole('radio', { name: 'Monthly' }));

    await selectOptionInTest(screen.getByLabelText('Time zone picker'), 'Europe/Rome');
    fireEvent.submit(screen.getByRole('button', { name: /next/i }));

    await waitFor(() =>
      expect(mockUpdate).toHaveBeenCalledWith({
        ...testReport,
        schedule: {
          ...testReport.schedule,
          frequency: 'monthly',
          startDate: '2021-01-11T04:00:00+01:00',
          endDate: '2021-02-11T00:00:00+01:00',
          timeZone: 'Europe/Rome',
        },
      })
    );
  });

  it('should correctly handle custom schedule', async () => {
    setup({
      report: {
        ...testReport,
        schedule: { ...testReport.schedule, startDate: '2021-01-11', endDate: '2021-02-11' },
      },
      updateReportProp: mockUpdate,
    });
    expect(await screen.findByText(/3. Schedule/i)).toBeInTheDocument();
    fireEvent.click(screen.getByRole('radio', { name: 'Custom' }));
    await userEvent.clear(screen.getByLabelText(/repeat every/i));
    await userEvent.type(screen.getByLabelText(/repeat every/i), '5');

    fireEvent.click(screen.getByRole('checkbox', { name: /send monday to friday/i }));

    await selectOptionInTest(screen.getByLabelText('Time zone picker'), 'Europe/Helsinki');

    fireEvent.submit(screen.getByRole('button', { name: /next/i }));

    await waitFor(() =>
      expect(mockUpdate).toHaveBeenCalledWith({
        ...testReport,
        schedule: {
          ...testReport.schedule,
          frequency: 'custom',
          startDate: '2021-01-11T00:00:00+02:00',
          endDate: '2021-02-11T00:00:00+02:00',
          intervalAmount: 5,
          intervalFrequency: 'hours',
          timeZone: 'Europe/Helsinki',
          workdaysOnly: true,
        },
      })
    );
  });
});