import getParser, { Parser } from '../../src/parser/source-parser';
import { Line } from '../../src/primitives';
import { splitLines, seedBlock, seedTokens } from '../../src/util';

let _parse: Parser;

const nulls = (n: number): null[] => Array(n).fill(null);
const parse = (source: string): Array<Line[] | null> =>
  splitLines(source).map(_parse);

beforeEach(() => {
  _parse = getParser();
});

test('multi-line block', () => {
  const parsed = parse(`
    /**
     * description 0
     *
     * description 1
     *
     * @param {string} value value description 0
    \`\`\`
    @sample code
    \`\`\`
    * description 1
    */`);

  const block = [
    {
      number: 1,
      source: '    /**',
      tokens: seedTokens({
        start: '    ',
        delimiter: '/**',
        postDelimiter: '',
        description: '',
        end: '',
      }),
    },
    {
      number: 2,
      source: '     * description 0',
      tokens: seedTokens({
        start: '     ',
        delimiter: '*',
        postDelimiter: ' ',
        description: 'description 0',
        end: '',
      }),
    },
    {
      number: 3,
      source: '     *',
      tokens: seedTokens({
        start: '     ',
        delimiter: '*',
        postDelimiter: '',
        description: '',
        end: '',
      }),
    },
    {
      number: 4,
      source: '     * description 1',
      tokens: seedTokens({
        start: '     ',
        delimiter: '*',
        postDelimiter: ' ',
        description: 'description 1',
        end: '',
      }),
    },
    {
      number: 5,
      source: '     *',
      tokens: seedTokens({
        start: '     ',
        delimiter: '*',
        postDelimiter: '',
        description: '',
        end: '',
      }),
    },
    {
      number: 6,
      source: '     * @param {string} value value description 0',
      tokens: seedTokens({
        start: '     ',
        delimiter: '*',
        postDelimiter: ' ',
        description: '@param {string} value value description 0',
        end: '',
      }),
    },
    {
      number: 7,
      source: '    ```',
      tokens: seedTokens({
        start: '    ',
        delimiter: '',
        postDelimiter: '',
        description: '```',
        end: '',
      }),
    },
    {
      number: 8,
      source: '    @sample code',
      tokens: seedTokens({
        start: '    ',
        delimiter: '',
        postDelimiter: '',
        description: '@sample code',
        end: '',
      }),
    },
    {
      number: 9,
      source: '    ```',
      tokens: seedTokens({
        start: '    ',
        delimiter: '',
        postDelimiter: '',
        description: '```',
        end: '',
      }),
    },
    {
      number: 10,
      source: '    * description 1',
      tokens: seedTokens({
        start: '    ',
        delimiter: '*',
        postDelimiter: ' ',
        description: 'description 1',
        end: '',
      }),
    },
    {
      number: 11,
      source: '    */',
      tokens: seedTokens({
        start: '    ',
        delimiter: '',
        postDelimiter: '',
        description: '',
        end: '*/',
      }),
    },
  ];

  expect(parsed).toEqual([...nulls(11), block]);
});

test('one-line block', () => {
  const parsed = parse(`
  /** description */
  `);

  const block = [
    {
      number: 1,
      source: '  /** description */',
      tokens: seedTokens({
        start: '  ',
        delimiter: '/**',
        postDelimiter: ' ',
        description: 'description ',
        end: '*/',
      }),
    },
  ];

  expect(parsed).toEqual([null, block, null]);
});

test('multiple blocks', () => {
  const parsed = parse(`
    /** description 0 */

    /** description 1 */
    `);

  const block0 = [
    {
      number: 1,
      source: '    /** description 0 */',
      tokens: seedTokens({
        start: '    ',
        delimiter: '/**',
        postDelimiter: ' ',
        description: 'description 0 ',
        end: '*/',
      }),
    },
  ];

  const block1 = [
    {
      number: 3,
      source: '    /** description 1 */',
      tokens: seedTokens({
        start: '    ',
        delimiter: '/**',
        postDelimiter: ' ',
        description: 'description 1 ',
        end: '*/',
      }),
    },
  ];

  expect(parsed).toEqual([null, block0, null, block1, null]);
});

test('start line number', () => {
  const source = splitLines(`
  /** description */`);

  const parsed = source.map(getParser({ startLine: 5 }));

  const block = [
    {
      number: 6,
      source: '  /** description */',
      tokens: seedTokens({
        start: '  ',
        delimiter: '/**',
        postDelimiter: ' ',
        description: 'description ',
        end: '*/',
      }),
    },
  ];

  expect(parsed).toEqual([null, block]);
});

test('carriage returns', () => {
  const source = splitLines(
    ['/**', ' * description', ' *', ' */', ''].join('\r\n')
  );

  const parse = getParser();
  const parsed = source.map(parse);

  const block = [
    {
      number: 0,
      source: '/**\r',
      tokens: seedTokens({
        delimiter: '/**',
        lineEnd: '\r',
      }),
    },
    {
      number: 1,
      source: ' * description\r',
      tokens: seedTokens({
        start: ' ',
        delimiter: '*',
        postDelimiter: ' ',
        description: 'description',
        lineEnd: '\r',
      }),
    },
    {
      number: 2,
      source: ' *\r',
      tokens: seedTokens({
        start: ' ',
        delimiter: '*',
        lineEnd: '\r',
      }),
    },
    {
      number: 3,
      source: ' */\r',
      tokens: seedTokens({
        start: ' ',
        end: '*/',
        lineEnd: '\r',
      }),
    },
  ];

  expect(parsed).toEqual([...nulls(3), block, null]);
});