/*
 * Copyright OpenSearch Contributors
 * SPDX-License-Identifier: Apache-2.0
 */

import { fireEvent, render } from '@testing-library/react';
import { configure } from 'enzyme';
import Adapter from 'enzyme-adapter-react-16';
import DSLService from 'public/services/requests/dsl';
import React from 'react';
import { Autocomplete } from './autocomplete';
import { parseGetSuggestions } from './autocomplete_logic';
import {
  AutocompleteItem,
  pipeCommands,
  statsCommands,
} from '../../../../common/constants/autocomplete';
import { act } from 'react-dom/test-utils';

configure({ adapter: new Adapter() });

describe('renders autocomplete', function () {
  const query = '';
  const tempQuery = '';
  const handleQueryChange = jest.fn();
  const handleQuerySearch = jest.fn();
  const dslService = ({
    http: jest.fn(),
    fetch: jest.fn(),
    fetchIndices: jest.fn(),
    fetchFields: jest.fn(),
  } as unknown) as DSLService;
  const getSuggestions = jest.fn();
  const onItemSelect = jest.fn();
  const utils = render(
    <Autocomplete
      key={'autocomplete-search-bar'}
      tabId={'application-analytics-tab'}
      query={query}
      tempQuery={tempQuery}
      baseQuery={''}
      handleQueryChange={handleQueryChange}
      handleQuerySearch={handleQuerySearch}
      dslService={dslService}
      getSuggestions={getSuggestions}
      onItemSelect={onItemSelect}
    />
  );

  const searchBar = utils.getByPlaceholderText('Enter PPL query');

  it('handles query change', () => {
    act(() => {
      fireEvent.change(searchBar, { target: { value: 'new query' } });
    });
    expect(handleQueryChange).toBeCalledWith('new query');
  });

  it('handles query search on shift enter', () => {
    act(() => {
      fireEvent.keyDown(searchBar, { keyCode: 13, shiftKey: true });
    });
    expect(handleQuerySearch).toBeCalled();
  });
});

describe('autocomplete logic', function () {
  const dslService = ({
    http: jest.fn(),
    fetch: jest
      .fn()
      .mockReturnValueOnce({
        aggregations: { top_tags: { buckets: [{ key: 'data', doc_count: 1 }] } },
      })
      .mockReturnValueOnce({
        aggregations: {
          top_tags: {
            buckets: [
              { key: 1, doc_count: 1 },
              { key: 0, doc_count: 1 },
            ],
          },
        },
      })
      .mockReturnValue({ aggregations: { top_tags: { buckets: [{ key: 24, doc_count: 1 }] } } }),
    fetchIndices: jest.fn().mockReturnValue([{ index: 'test_index' }]),
    fetchFields: jest.fn().mockReturnValue({
      test_index: {
        mappings: {
          properties: {
            str_field: { type: 'string' },
            bool_field: { type: 'boolean' },
            num_field: { type: 'integer' },
          },
        },
      },
    }),
  } as unknown) as DSLService;

  it('suggests source if empty', async () => {
    const input = '';
    const expected = [
      {
        label: 'source',
        input,
        suggestion: 'source',
        itemName: 'source',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(dslService.fetchIndices).toBeCalled();
    expect(suggestion).toStrictEqual(expected);
  });

  it('continues to suggest source after S', async () => {
    const input = 'S';
    const expected = [
      {
        label: 'source',
        input,
        suggestion: 'ource',
        itemName: 'source',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });
  it('suggests = after source', async () => {
    const input = 'source ';
    const expected = [
      {
        label: 'source =',
        input,
        suggestion: '=',
        itemName: '=',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('suggests index after source =', async () => {
    const input = 'source = ';
    const expected = [
      {
        label: 'source = test_index',
        input,
        suggestion: 'test_index',
        itemName: 'test_index',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('continues to suggest index after source = TeSt', async () => {
    const input = 'source = TeSt';
    const expected = [
      {
        label: 'source = test_index',
        input,
        suggestion: '_index',
        itemName: 'test_index',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('suggests | after source = test_index', async () => {
    const input = 'source = test_index ';
    const expected = [
      {
        label: 'source = test_index |',
        input,
        suggestion: '|',
        itemName: '|',
      },
      {
        label: 'source = test_index,',
        input,
        suggestion: ',',
        itemName: ',',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('suggests pipeCommands after |', async () => {
    const input = 'source = test_index | ';
    const expected = pipeCommands.map((c) => {
      return {
        label: `source = test_index | ${c.label}`,
        input,
        suggestion: c.label,
        itemName: c.label,
      };
    }) as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(dslService.fetchFields).toBeCalled();
    expect(suggestion).toStrictEqual(expected);
  });

  it('continues to suggest field after where StR_F', async () => {
    const input = 'source = test_index | where StR_F';
    const expected = [
      {
        label: 'source = test_index | where str_field',
        input,
        suggestion: 'ield',
        itemName: 'str_field',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('suggests = after where str_field', async () => {
    const input = 'source = test_index | where str_field ';
    const expected = [
      {
        label: 'source = test_index | where str_field =',
        input,
        suggestion: '=',
        itemName: '=',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(dslService.fetch).toBeCalled();
    expect(suggestion).toStrictEqual(expected);
  });

  it('suggests data after where str_field = ', async () => {
    const input = 'source = test_index | where str_field = ';
    const expected = [
      {
        label: 'source = test_index | where str_field = "data"',
        input,
        suggestion: '"data"',
        itemName: '"data"',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('continues to suggest data after where str_field = "D', async () => {
    const input = 'source = test_index | where str_field = "D';
    const expected = [
      {
        label: 'source = test_index | where str_field = "data"',
        input,
        suggestion: 'ata"',
        itemName: '"data"',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('suggests | after where str_field = "data"', async () => {
    const input = 'source = test_index | where str_field = "data" ';
    const expected = [
      {
        label: 'source = test_index | where str_field = "data" |',
        input,
        suggestion: '|',
        itemName: '|',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('continues to suggest field after where BoOl_F', async () => {
    const input = 'source = test_index | where BoOl_F';
    const expected = [
      {
        label: 'source = test_index | where bool_field',
        input,
        suggestion: 'ield',
        itemName: 'bool_field',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('suggests = after where bool_field', async () => {
    const input = 'source = test_index | where bool_field ';
    const expected = [
      {
        label: 'source = test_index | where bool_field =',
        input,
        suggestion: '=',
        itemName: '=',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(dslService.fetch).toBeCalled();
    expect(suggestion).toStrictEqual(expected);
  });

  it('suggests data after where bool_field = ', async () => {
    const input = 'source = test_index | where bool_field = ';
    const expected = [
      {
        label: 'source = test_index | where bool_field = True',
        input,
        suggestion: 'True',
        itemName: 'True',
      },
      {
        label: 'source = test_index | where bool_field = False',
        input,
        suggestion: 'False',
        itemName: 'False',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('continues to suggest data after where bool_field = fA', async () => {
    const input = 'source = test_index | where bool_field = fA';
    const expected = [
      {
        label: 'source = test_index | where bool_field = False',
        input,
        suggestion: 'lse',
        itemName: 'False',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('suggests | after where bool_field = True', async () => {
    const input = 'source = test_index | where bool_field = True ';
    const expected = [
      {
        label: 'source = test_index | where bool_field = True |',
        input,
        suggestion: '|',
        itemName: '|',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('continues to suggest match( after where Ma', async () => {
    const input = 'source = test_index | where Ma';
    const expected = [
      {
        label: 'source = test_index | where match(',
        input,
        suggestion: 'tch(',
        itemName: 'match(',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('suggests fields after where match(', async () => {
    const input = 'source = test_index | where match( ';
    const expected = [
      {
        label: 'source = test_index | where match( str_field',
        input,
        suggestion: 'str_field',
        itemName: 'str_field',
      },
      {
        label: 'source = test_index | where match( bool_field',
        input,
        suggestion: 'bool_field',
        itemName: 'bool_field',
      },
      {
        label: 'source = test_index | where match( num_field',
        input,
        suggestion: 'num_field',
        itemName: 'num_field',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('suggests , after where match( num_field', async () => {
    const input = 'source = test_index | where match( num_field ';
    const expected = [
      {
        label: 'source = test_index | where match( num_field ,',
        input,
        suggestion: ',',
        itemName: ',',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(dslService.fetch).toBeCalled();
    expect(suggestion).toStrictEqual(expected);
  });

  it('suggests data after where match( num_field ,', async () => {
    const input = 'source = test_index | where match( num_field , ';
    const expected = [
      {
        label: 'source = test_index | where match( num_field , 24',
        input,
        suggestion: '24',
        itemName: '24',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('suggests ) after where match( num_field , 24', async () => {
    const input = 'source = test_index | where match( num_field , 24 ';
    const expected = [
      {
        label: 'source = test_index | where match( num_field , 24 )',
        input,
        suggestion: ')',
        itemName: ')',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('suggests | after where match( num_field , 24 )', async () => {
    const input = 'source = test_index | where match( num_field , 24 ) ';
    const expected = [
      {
        label: 'source = test_index | where match( num_field , 24 ) |',
        input,
        suggestion: '|',
        itemName: '|',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('suggests statsCommands after stats', async () => {
    const input = 'source = test_index | stats ';
    const expected = statsCommands.map((c) => {
      return {
        label: `source = test_index | stats ${c.label}`,
        input,
        suggestion: c.label,
        itemName: c.label,
      };
    }) as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('suggests by, comma, pipe after stats count()', async () => {
    const input = 'source = test_index | stats count() ';
    const expected = [',', '|', 'by'].map((suggestion) => {
      return {
        label: `source = test_index | stats count() ${suggestion}`,
        input,
        suggestion,
        itemName: suggestion,
      };
    }) as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('suggests fields after stats count() by', async () => {
    const input = 'source = test_index | stats count() by ';
    const expected = [
      {
        label: 'source = test_index | stats count() by span(',
        input,
        suggestion: 'span(',
        itemName: 'span(',
      },
      {
        label: 'source = test_index | stats count() by str_field',
        input,
        suggestion: 'str_field',
        itemName: 'str_field',
      },
      {
        label: 'source = test_index | stats count() by bool_field',
        input,
        suggestion: 'bool_field',
        itemName: 'bool_field',
      },
      {
        label: 'source = test_index | stats count() by num_field',
        input,
        suggestion: 'num_field',
        itemName: 'num_field',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('suggests | after stats count() by str_field', async () => {
    const input = 'source = test_index | stats count() by str_field ';
    const expected = [
      {
        label: 'source = test_index | stats count() by str_field |',
        input,
        suggestion: '|',
        itemName: '|',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('suggests num_field after stats sum(', async () => {
    const input = 'source = test_index | stats sum( ';
    const expected = [
      {
        label: 'source = test_index | stats sum( num_field',
        input,
        suggestion: 'num_field',
        itemName: 'num_field',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('suggests by after stats sum( num_field )', async () => {
    const input = 'source = test_index | stats sum( num_field ) ';
    const expected = [
      {
        label: 'source = test_index | stats sum( num_field ) ,',
        input,
        suggestion: ',',
        itemName: ',',
      },
      {
        label: 'source = test_index | stats sum( num_field ) |',
        input,
        suggestion: '|',
        itemName: '|',
      },
      {
        label: 'source = test_index | stats sum( num_field ) by',
        input,
        suggestion: 'by',
        itemName: 'by',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('suggests fields after stats sum( num_field ) by', async () => {
    const input = 'source = test_index | stats sum( num_field ) by ';
    const expected = [
      {
        label: 'source = test_index | stats sum( num_field ) by span(',
        input,
        suggestion: 'span(',
        itemName: 'span(',
      },
      {
        label: 'source = test_index | stats sum( num_field ) by str_field',
        input,
        suggestion: 'str_field',
        itemName: 'str_field',
      },
      {
        label: 'source = test_index | stats sum( num_field ) by bool_field',
        input,
        suggestion: 'bool_field',
        itemName: 'bool_field',
      },
      {
        label: 'source = test_index | stats sum( num_field ) by num_field',
        input,
        suggestion: 'num_field',
        itemName: 'num_field',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('continues to suggest fields after FiE', async () => {
    const input = 'source = test_index | FiE';
    const expected = [
      {
        label: 'source = test_index | fields',
        input,
        suggestion: 'lds',
        itemName: 'fields',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('suggests fields after fields', async () => {
    const input = 'source = test_index | fields ';
    const expected = [
      {
        label: 'source = test_index | fields +',
        input,
        suggestion: '+',
        itemName: '+',
      },
      {
        label: 'source = test_index | fields -',
        input,
        suggestion: '-',
        itemName: '-',
      },
      {
        label: 'source = test_index | fields str_field',
        input,
        suggestion: 'str_field',
        itemName: 'str_field',
      },
      {
        label: 'source = test_index | fields bool_field',
        input,
        suggestion: 'bool_field',
        itemName: 'bool_field',
      },
      {
        label: 'source = test_index | fields num_field',
        input,
        suggestion: 'num_field',
        itemName: 'num_field',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('suggests , after fields str_field', async () => {
    const input = 'source = test_index | fields str_field ';
    const expected = [
      {
        label: 'source = test_index | fields str_field ,',
        input,
        suggestion: ',',
        itemName: ',',
      },
      {
        label: 'source = test_index | fields str_field |',
        input,
        suggestion: '|',
        itemName: '|',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('suggests fields after fields str_field, ', async () => {
    const input = 'source = test_index | fields str_field , ';
    const expected = [
      {
        label: 'source = test_index | fields str_field , str_field',
        input,
        suggestion: 'str_field',
        itemName: 'str_field',
      },
      {
        label: 'source = test_index | fields str_field , bool_field',
        input,
        suggestion: 'bool_field',
        itemName: 'bool_field',
      },
      {
        label: 'source = test_index | fields str_field , num_field',
        input,
        suggestion: 'num_field',
        itemName: 'num_field',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('continues to suggest dedup after DE', async () => {
    const input = 'source = test_index | DE';
    const expected = [
      {
        label: 'source = test_index | dedup',
        input,
        suggestion: 'dup',
        itemName: 'dedup',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });

  it('suggests fields after dedup', async () => {
    const input = 'source = test_index | dedup ';
    const expected = [
      {
        label: 'source = test_index | dedup str_field',
        input,
        suggestion: 'str_field',
        itemName: 'str_field',
      },
      {
        label: 'source = test_index | dedup bool_field',
        input,
        suggestion: 'bool_field',
        itemName: 'bool_field',
      },
      {
        label: 'source = test_index | dedup num_field',
        input,
        suggestion: 'num_field',
        itemName: 'num_field',
      },
    ] as AutocompleteItem[];
    const suggestion = await parseGetSuggestions('', input, dslService);
    expect(suggestion).toStrictEqual(expected);
  });
});