import { render, screen } from '@testing-library/react';
import userEvent from '@testing-library/user-event';
import React from 'react';

import { LokiQuery, LokiQueryType } from '../../types';

import { LokiQueryBuilderOptions } from './LokiQueryBuilderOptions';

describe('LokiQueryBuilderOptions', () => {
  it('can change query type', async () => {
    const { props } = setup();

    await userEvent.click(screen.getByTitle('Click to edit options'));
    expect(screen.getByLabelText('Range')).toBeChecked();

    await userEvent.click(screen.getByLabelText('Instant'));

    expect(props.onChange).toHaveBeenCalledWith({
      ...props.query,
      queryType: LokiQueryType.Instant,
    });
  });

  it('can change legend format', async () => {
    const { props } = setup();

    await userEvent.click(screen.getByTitle('Click to edit options'));

    // First autosize input is a Legend
    const element = screen.getAllByTestId('autosize-input')[0];
    await userEvent.type(element, 'asd');
    await userEvent.keyboard('{enter}');

    expect(props.onChange).toHaveBeenCalledWith({
      ...props.query,
      legendFormat: 'asd',
    });
  });

  it('can change line limit to valid value', async () => {
    const { props } = setup({ expr: '{foo="bar"}' });

    await userEvent.click(screen.getByTitle('Click to edit options'));
    // Second autosize input is a Line limit
    const element = screen.getAllByTestId('autosize-input')[1];
    await userEvent.type(element, '10');
    await userEvent.keyboard('{enter}');

    expect(props.onChange).toHaveBeenCalledWith({
      ...props.query,
      maxLines: 10,
    });
  });

  it('does not change line limit to invalid numeric value', async () => {
    const { props } = setup({ expr: '{foo="bar"}' });
    // We need to start with some value to be able to change it
    props.query.maxLines = 10;

    await userEvent.click(screen.getByTitle('Click to edit options'));
    // Second autosize input is a Line limit
    const element = screen.getAllByTestId('autosize-input')[1];
    await userEvent.type(element, '-10');
    await userEvent.keyboard('{enter}');

    expect(props.onChange).toHaveBeenCalledWith({
      ...props.query,
      maxLines: undefined,
    });
  });

  it('does not change line limit to invalid text value', async () => {
    const { props } = setup({ expr: '{foo="bar"}' });
    // We need to start with some value to be able to change it
    props.query.maxLines = 10;

    await userEvent.click(screen.getByTitle('Click to edit options'));
    // Second autosize input is a Line limit
    const element = screen.getAllByTestId('autosize-input')[1];
    await userEvent.type(element, 'asd');
    await userEvent.keyboard('{enter}');

    expect(props.onChange).toHaveBeenCalledWith({
      ...props.query,
      maxLines: undefined,
    });
  });

  it('shows correct options for log query', async () => {
    setup({ expr: '{foo="bar"}' });
    expect(screen.getByText('Line limit: 20')).toBeInTheDocument();
    expect(screen.getByText('Type: Range')).toBeInTheDocument();
    expect(screen.queryByText(/step/i)).not.toBeInTheDocument();
  });

  it('shows correct options for metric query', async () => {
    setup({ expr: 'rate({foo="bar"}[5m]', step: '1m' });
    expect(screen.queryByText('Line limit: 20')).not.toBeInTheDocument();
    expect(screen.getByText('Type: Range')).toBeInTheDocument();
    expect(screen.getByText('Step: 1m')).toBeInTheDocument();
  });

  it('does not shows resolution field if resolution is not set', async () => {
    setup({ expr: 'rate({foo="bar"}[5m]' });
    await userEvent.click(screen.getByTitle('Click to edit options'));
    expect(screen.queryByText('Resolution')).not.toBeInTheDocument();
  });

  it('does not shows resolution field if resolution is set to default value 1', async () => {
    setup({ expr: 'rate({foo="bar"}[5m]', resolution: 1 });
    await userEvent.click(screen.getByTitle('Click to edit options'));
    expect(screen.queryByText('Resolution')).not.toBeInTheDocument();
  });

  it('does shows resolution field with warning if resolution is set to non-default value', async () => {
    setup({ expr: 'rate({foo="bar"}[5m]', resolution: 2 });
    await userEvent.click(screen.getByTitle('Click to edit options'));
    expect(screen.getByText('Resolution')).toBeInTheDocument();
    expect(
      screen.getByText("The 'Resolution' is deprecated. Use 'Step' editor instead to change step parameter.")
    ).toBeInTheDocument();
  });

  it('shows correct options for metric query with invalid step', async () => {
    setup({ expr: 'rate({foo="bar"}[5m]', step: 'abc' });
    expect(screen.queryByText('Line limit: 20')).not.toBeInTheDocument();
    expect(screen.getByText('Type: Range')).toBeInTheDocument();
    expect(screen.getByText('Step: Invalid value')).toBeInTheDocument();
  });

  it('shows error when invalid value in step', async () => {
    setup({ expr: 'rate({foo="bar"}[5m]', step: 'a' });
    await userEvent.click(screen.getByTitle('Click to edit options'));
    expect(screen.getByText(/Invalid step/)).toBeInTheDocument();
  });

  it('does not shows error when valid value in step', async () => {
    setup({ expr: 'rate({foo="bar"}[5m]', step: '1m' });
    await userEvent.click(screen.getByTitle('Click to edit options'));
    expect(screen.queryByText(/Invalid step/)).not.toBeInTheDocument();
  });
});

function setup(queryOverrides: Partial<LokiQuery> = {}) {
  const props = {
    query: {
      refId: 'A',
      expr: '',
      ...queryOverrides,
    },
    onRunQuery: jest.fn(),
    onChange: jest.fn(),
    maxLines: 20,
    queryStats: { streams: 0, chunks: 0, bytes: 0, entries: 0 },
  };

  const { container } = render(<LokiQueryBuilderOptions {...props} />);
  return { container, props };
}