import { stripIndents } from 'common-tags';
import * as fs from 'fs';
import * as path from 'path';

import {
  extractDocumentFromJavascript,
  loadAndMergeQueryDocuments
} from '../loading';

// Test example javascript source files are located within __fixtures__
describe('extractDocumentFromJavascript', () => {
  test('normal queries', () => {
    const contents = fs.readFileSync(path.join(__dirname, '__fixtures__', 'normal.js')).toString();
    expect(stripIndents`${extractDocumentFromJavascript(contents)}`)
      .toMatch(
        stripIndents`
          query UserProfileView {
            me {
              id
              uuid
              role
            }
          }
        `
      );
  });

  test('comments in template string', () => {
    const contents = fs.readFileSync(path.join(__dirname, '__fixtures__', 'comments.js')).toString();
    expect(stripIndents`${extractDocumentFromJavascript(contents)}`)
      .toMatch(
        stripIndents`
          query UserProfileView {
            me {
              id
              # TODO: https://www.fast.com/sdf/sdf
              uuid
              # Some other comment
              role
            }
          }
        `
      );
  });

  test('gql completely commented out', () => {
    const contents = fs.readFileSync(path.join(__dirname, '__fixtures__', 'commentedOut.js')).toString();
    expect(extractDocumentFromJavascript(contents))
      .toBeNull();
  });

  test('invalid gql', () => {
    const contents = fs.readFileSync(path.join(__dirname, '__fixtures__', 'invalid.js')).toString();
    expect(extractDocumentFromJavascript(contents))
      .toBeNull();
  });
});

describe('Validation', () => {
  test(`should extract gql snippet from javascript file`, () => {
    const inputPaths = [
      path.join(__dirname, '../../test/fixtures/starwars/gqlQueries.js'),
    ];

    const document = loadAndMergeQueryDocuments(inputPaths);

    expect(document).toMatchSnapshot();
  })
});