import { screen, waitFor, fireEvent } from '@testing-library/react';
import userEvent from '@testing-library/user-event';
import React from 'react';
import { render } from 'test/redux-rtl';

import {
  createDataFrame,
  FieldType,
  LogRowContextQueryDirection,
  LogsSortOrder,
  SplitOpenOptions,
} from '@grafana/data';

import { dataFrameToLogsModel } from '../../logsModel';

import { LogRowContextModal } from './LogRowContextModal';

const dfBefore = createDataFrame({
  fields: [
    {
      name: 'time',
      type: FieldType.time,
      values: ['2019-04-26T07:28:11.352440161Z', '2019-04-26T09:28:11.352440161Z'],
    },
    {
      name: 'message',
      type: FieldType.string,
      values: ['foo123', 'foo123'],
    },
  ],
});
const dfNow = createDataFrame({
  fields: [
    {
      name: 'time',
      type: FieldType.time,
      values: ['2019-04-26T09:28:11.352440161Z'],
    },
    {
      name: 'message',
      type: FieldType.string,
      values: ['foo123'],
    },
  ],
});
const dfAfter = createDataFrame({
  fields: [
    {
      name: 'time',
      type: FieldType.time,
      values: ['2019-04-26T14:42:50.991981292Z', '2019-04-26T16:28:11.352440161Z'],
    },
    {
      name: 'message',
      type: FieldType.string,
      values: ['foo123', 'bar123'],
    },
  ],
});

let uniqueRefIdCounter = 1;

const getRowContext = jest.fn().mockImplementation(async (_, options) => {
  uniqueRefIdCounter += 1;
  const refId = `refid_${uniqueRefIdCounter}`;
  if (options.direction === LogRowContextQueryDirection.Forward) {
    return {
      data: [
        {
          refId,
          ...dfBefore,
        },
      ],
    };
  } else {
    return {
      data: [
        {
          refId,
          ...dfAfter,
        },
      ],
    };
  }
});
const dispatchMock = jest.fn();
jest.mock('app/types', () => ({
  ...jest.requireActual('app/types'),
  useDispatch: () => dispatchMock,
}));

const splitOpenSym = Symbol('splitOpen');
const splitOpen = jest.fn().mockReturnValue(splitOpenSym);
jest.mock('app/features/explore/state/main', () => ({
  ...jest.requireActual('app/features/explore/state/main'),
  splitOpen: (arg?: SplitOpenOptions) => {
    return splitOpen(arg);
  },
}));

const logs = dataFrameToLogsModel([dfNow]);
const row = logs.rows[0];

const timeZone = 'UTC';

describe('LogRowContextModal', () => {
  const originalScrollIntoView = window.HTMLElement.prototype.scrollIntoView;

  beforeEach(() => {
    window.HTMLElement.prototype.scrollIntoView = jest.fn();
  });
  afterEach(() => {
    window.HTMLElement.prototype.scrollIntoView = originalScrollIntoView;
    jest.clearAllMocks();
  });

  it('should not render modal when it is closed', async () => {
    render(
      <LogRowContextModal
        row={row}
        open={false}
        onClose={() => {}}
        getRowContext={getRowContext}
        timeZone={timeZone}
        logsSortOrder={LogsSortOrder.Descending}
      />
    );

    await waitFor(() => expect(screen.queryByText('Log context')).not.toBeInTheDocument());
  });

  it('should render modal when it is open', async () => {
    render(
      <LogRowContextModal
        row={row}
        open={true}
        onClose={() => {}}
        getRowContext={getRowContext}
        timeZone={timeZone}
        logsSortOrder={LogsSortOrder.Descending}
      />
    );

    await waitFor(() => expect(screen.queryByText('Log context')).toBeInTheDocument());
  });

  it('should call getRowContext on open and change of row', async () => {
    render(
      <LogRowContextModal
        row={row}
        open={false}
        onClose={() => {}}
        getRowContext={getRowContext}
        timeZone={timeZone}
        logsSortOrder={LogsSortOrder.Descending}
      />
    );

    await waitFor(() => expect(getRowContext).not.toHaveBeenCalled());
  });

  it('should call getRowContext on open', async () => {
    render(
      <LogRowContextModal
        row={row}
        open={true}
        onClose={() => {}}
        getRowContext={getRowContext}
        timeZone={timeZone}
        logsSortOrder={LogsSortOrder.Descending}
      />
    );
    await waitFor(() => expect(getRowContext).toHaveBeenCalledTimes(2));
  });

  it('should render 3 lines containing `foo123`', async () => {
    render(
      <LogRowContextModal
        row={row}
        open={true}
        onClose={() => {}}
        getRowContext={getRowContext}
        timeZone={timeZone}
        logsSortOrder={LogsSortOrder.Descending}
      />
    );
    // there need to be 2 lines with that message. 1 in before, 1 in now, 1 in after
    await waitFor(() => expect(screen.getAllByText('foo123').length).toBe(3));
  });

  it('should render 3 lines containing `foo123` with the same ms timestamp', async () => {
    const dfBeforeNs = createDataFrame({
      fields: [
        {
          name: 'time',
          type: FieldType.time,
          values: [1, 1],
        },
        {
          name: 'message',
          type: FieldType.string,
          values: ['foo123', 'foo123'],
        },
        {
          name: 'tsNs',
          type: FieldType.string,
          values: ['1', '2'],
        },
      ],
    });
    const dfNowNs = createDataFrame({
      fields: [
        {
          name: 'time',
          type: FieldType.time,
          values: [1],
        },
        {
          name: 'message',
          type: FieldType.string,
          values: ['foo123'],
        },
        {
          name: 'tsNs',
          type: FieldType.string,
          values: ['2'],
        },
      ],
    });
    const dfAfterNs = createDataFrame({
      fields: [
        {
          name: 'time',
          type: FieldType.time,
          values: [1, 1],
        },
        {
          name: 'message',
          type: FieldType.string,
          values: ['foo123', 'foo123'],
        },
        {
          name: 'tsNs',
          type: FieldType.string,
          values: ['2', '3'],
        },
      ],
    });

    let uniqueRefIdCounter = 1;
    const logs = dataFrameToLogsModel([dfNowNs]);
    const row = logs.rows[0];
    const getRowContext = jest.fn().mockImplementation(async (_, options) => {
      uniqueRefIdCounter += 1;
      const refId = `refid_${uniqueRefIdCounter}`;
      if (uniqueRefIdCounter === 2) {
        return {
          data: [
            {
              refId,
              ...dfBeforeNs,
            },
          ],
        };
      } else if (uniqueRefIdCounter === 3) {
        return {
          data: [
            {
              refId,
              ...dfAfterNs,
            },
          ],
        };
      }
      return { data: [] };
    });

    render(
      <LogRowContextModal
        row={row}
        open={true}
        onClose={() => {}}
        getRowContext={getRowContext}
        timeZone={timeZone}
        logsSortOrder={LogsSortOrder.Descending}
      />
    );

    // there need to be 3 lines with that message. 1 in before, 1 in now, 1 in after
    await waitFor(() => {
      expect(screen.getAllByText('foo123').length).toBe(3);
    });
  });

  it('should highlight the same `foo123` searchwords', async () => {
    const dfBeforeNs = createDataFrame({
      fields: [
        {
          name: 'time',
          type: FieldType.time,
          values: [1, 1],
        },
        {
          name: 'message',
          type: FieldType.string,
          values: ['this contains foo123', 'this contains foo123'],
        },
        {
          name: 'tsNs',
          type: FieldType.string,
          values: ['1', '2'],
        },
      ],
    });
    const dfNowNs = createDataFrame({
      fields: [
        {
          name: 'time',
          type: FieldType.time,
          values: [1],
        },
        {
          name: 'message',
          type: FieldType.string,
          values: ['this contains foo123'],
        },
        {
          name: 'tsNs',
          type: FieldType.string,
          values: ['2'],
        },
      ],
    });
    const dfAfterNs = createDataFrame({
      fields: [
        {
          name: 'time',
          type: FieldType.time,
          values: [1, 1],
        },
        {
          name: 'message',
          type: FieldType.string,
          values: ['this contains foo123', 'this contains foo123'],
        },
        {
          name: 'tsNs',
          type: FieldType.string,
          values: ['2', '3'],
        },
      ],
    });

    let uniqueRefIdCounter = 1;
    const logs = dataFrameToLogsModel([dfNowNs]);
    const row = logs.rows[0];
    row.searchWords = ['foo123'];
    const getRowContext = jest.fn().mockImplementation(async (_, options) => {
      uniqueRefIdCounter += 1;
      const refId = `refid_${uniqueRefIdCounter}`;
      if (uniqueRefIdCounter === 2) {
        return {
          data: [
            {
              refId,
              ...dfBeforeNs,
            },
          ],
        };
      } else if (uniqueRefIdCounter === 3) {
        return {
          data: [
            {
              refId,
              ...dfAfterNs,
            },
          ],
        };
      }
      return { data: [] };
    });

    render(
      <LogRowContextModal
        row={row}
        open={true}
        onClose={() => {}}
        getRowContext={getRowContext}
        timeZone={timeZone}
        logsSortOrder={LogsSortOrder.Descending}
      />
    );

    // there need to be 3 lines with that message, all `foo123` should be highlighted
    await waitFor(() => {
      expect(screen.getAllByText('foo123').length).toBe(3);
      for (const el of screen.getAllByText('foo123')) {
        // highlights are done in `<mark>` tags
        expect(el.tagName).toBe('MARK');
      }
      // test that the rest is not in a MARK
      expect(screen.getAllByText('this contains')[0].tagName).not.toBe('MARK');
    });
  });

  it('should show a split view button', async () => {
    const getRowContextQuery = jest.fn().mockResolvedValue({ datasource: { uid: 'test-uid' } });

    render(
      <LogRowContextModal
        row={row}
        open={true}
        onClose={() => {}}
        getRowContext={getRowContext}
        getRowContextQuery={getRowContextQuery}
        timeZone={timeZone}
        logsSortOrder={LogsSortOrder.Descending}
      />
    );

    await waitFor(() =>
      expect(
        screen.getByRole('button', {
          name: /open in split view/i,
        })
      ).toBeInTheDocument()
    );
  });

  it('should not show a split view button', async () => {
    render(
      <LogRowContextModal
        row={row}
        open={true}
        onClose={() => {}}
        getRowContext={getRowContext}
        timeZone={timeZone}
        logsSortOrder={LogsSortOrder.Descending}
      />
    );

    await waitFor(() => {
      expect(
        screen.queryByRole('button', {
          name: /open in split view/i,
        })
      ).not.toBeInTheDocument();
    });
  });

  it('should call getRowContextQuery', async () => {
    const getRowContextQuery = jest.fn().mockResolvedValue({ datasource: { uid: 'test-uid' } });
    render(
      <LogRowContextModal
        row={row}
        open={true}
        onClose={() => {}}
        getRowContext={getRowContext}
        getRowContextQuery={getRowContextQuery}
        timeZone={timeZone}
        logsSortOrder={LogsSortOrder.Descending}
      />
    );

    await waitFor(() => expect(getRowContextQuery).toHaveBeenCalledTimes(2));
  });

  it('should close modal', async () => {
    const getRowContextQuery = jest.fn().mockResolvedValue({ datasource: { uid: 'test-uid' } });
    const onClose = jest.fn();
    render(
      <LogRowContextModal
        row={row}
        open={true}
        onClose={onClose}
        getRowContext={getRowContext}
        getRowContextQuery={getRowContextQuery}
        timeZone={timeZone}
        logsSortOrder={LogsSortOrder.Descending}
      />
    );

    const splitViewButton = await screen.findByRole('button', {
      name: /open in split view/i,
    });

    await userEvent.click(splitViewButton);

    await waitFor(() => expect(onClose).toHaveBeenCalled());
  });

  it('should create correct splitOpen', async () => {
    const queryObj = { datasource: { uid: 'test-uid' } };
    const getRowContextQuery = jest.fn().mockResolvedValue(queryObj);
    const onClose = jest.fn();

    render(
      <LogRowContextModal
        row={row}
        open={true}
        onClose={onClose}
        getRowContext={getRowContext}
        getRowContextQuery={getRowContextQuery}
        timeZone={timeZone}
        logsSortOrder={LogsSortOrder.Descending}
      />
    );

    const splitViewButton = await screen.findByRole('button', {
      name: /open in split view/i,
    });

    await userEvent.click(splitViewButton);

    await waitFor(() =>
      expect(splitOpen).toHaveBeenCalledWith(
        expect.objectContaining({
          queries: [queryObj],
          panelsState: {
            logs: {
              id: row.uid,
            },
          },
        })
      )
    );
  });

  it('should dispatch splitOpen', async () => {
    const getRowContextQuery = jest.fn().mockResolvedValue({ datasource: { uid: 'test-uid' } });
    const onClose = jest.fn();

    render(
      <LogRowContextModal
        row={row}
        open={true}
        onClose={onClose}
        getRowContext={getRowContext}
        getRowContextQuery={getRowContextQuery}
        timeZone={timeZone}
        logsSortOrder={LogsSortOrder.Descending}
      />
    );

    const splitViewButton = await screen.findByRole('button', {
      name: /open in split view/i,
    });

    await userEvent.click(splitViewButton);

    await waitFor(() => expect(dispatchMock).toHaveBeenCalledWith(splitOpenSym));
  });

  it('should make the center row sticky on load', async () => {
    render(
      <LogRowContextModal
        row={row}
        open={true}
        onClose={() => {}}
        getRowContext={getRowContext}
        timeZone={timeZone}
        logsSortOrder={LogsSortOrder.Descending}
      />
    );

    await waitFor(() => {
      const rows = screen.getByTestId('entry-row');
      expect(rows).toHaveStyle('position: sticky');
    });
  });

  it('should make the center row unsticky on unPinClick', async () => {
    render(
      <LogRowContextModal
        row={row}
        open={true}
        onClose={() => {}}
        getRowContext={getRowContext}
        timeZone={timeZone}
        logsSortOrder={LogsSortOrder.Descending}
      />
    );

    await waitFor(() => {
      const rows = screen.getByTestId('entry-row');
      expect(rows).toHaveStyle('position: sticky');
    });
    const unpinButtons = screen.getAllByLabelText('Unpin line')[0];
    fireEvent.click(unpinButtons);
    await waitFor(() => {
      const rows = screen.getByTestId('entry-row');
      expect(rows).not.toHaveStyle('position: sticky');
    });
  });
});
