import {
  arrays,
  storage,
  format,
  helpers,
} from '../../src/js/util';
import { isLoading } from '../../src/js/util/helpers';

describe('isLoading', () => {
  const load_queue = {
    'guid1234ABC': 'spotify:playlist:123',
    'stuff:and_things': 'stuff:and_things',
  };

  it('should return false when not in load_queue', () => {
    expect(isLoading(load_queue, ['not_there'])).toBe(false);
  });

  it('should return true when in load queue', () => {
    expect(isLoading(load_queue, ['stuff:and_things'])).toBe(true);
  });

  it('should return true when in load queue (regex)', () => {
    expect(isLoading(load_queue, ['(.*)playlist(.*)'])).toBe(true);
  });

  it('should return false when regex is invalid', () => {
    expect(isLoading(load_queue, ['(*.)playlist(*.)'])).toBe(false);
  });
});

describe('isCached', () => {
  it('should return false when not cached', () => {
    expect(storage.isCached('https://picsum.photos/200')).toBe(false);
  });

  it('should return true when cached', () => {
    const image = new Image();
    image.src = 'https://picsum.photos/200';
    image.onload = () => {
      expect(storage.isCached('https://picsum.photos/200')).toBe(true);
    };
  });
});

describe('formatImages', () => {
  it('should ignore already-formatted objects', () => {
    let images = [
      {
        formatted: true,
        small: 'ignored-image.jpg',
      },
    ];
    expect(format.formatImages(images).small).toBe('ignored-image.jpg');
  });

  it('should handle Mopidy object', () => {
    let images = [
      {
        __model__: 'Image',
        width: 600,
        url: 'test-image.jpg',
      },
    ];
    expect(format.formatImages(images).small).toBe('test-image.jpg');
  });

  it('should handle Mopidy string', () => {
    let images = ['test-image.jpg'];
    expect(format.formatImages(images).small).toBe('test-image.jpg');
  });

  it('should handle Spotify image', () => {
    let images = [
      {
        width: 600,
        url: 'test-image.jpg',
      },
    ];
    expect(format.formatImages(images).small).toBe('test-image.jpg');
  });

  it('should handle LastFM image', () => {
    let images = [
      {
        size: 'small',
        '#text': 'test-image.jpg',
      },
    ];
    expect(format.formatImages(images).small).toBe('test-image.jpg');
  });

  it('should handle Genius image', () => {
    let images = {
      small: {
        url: 'test-image.jpg',
      },
    };
    expect(format.formatImages(images).small).toBe('test-image.jpg');
  });

  it('should up-fill sizes', () => {
    let images = [
      {
        width: 50,
        url: 'small.jpg',
      },
    ];
    expect(format.formatImages(images).medium).toBe('small.jpg');
    expect(format.formatImages(images).large).toBe('small.jpg');
    expect(format.formatImages(images).huge).toBe('small.jpg');
  });

  it('should down-fill sizes', () => {
    let images = [
      {
        width: 1900,
        url: 'huge.jpg',
      },
    ];
    expect(format.formatImages(images).small).toBe('huge.jpg');
    expect(format.formatImages(images).medium).toBe('huge.jpg');
    expect(format.formatImages(images).large).toBe('huge.jpg');
  });
});

/**
 * TODO: Formatters
 * */

describe('uriSource', () => {
  it('should digest uri into a string', () => {
    expect(typeof (helpers.uriType('spotify:album:123'))).toBe('string');
    expect(helpers.uriSource('spotify:album:123')).toBe('spotify');
  });
});

describe('uriType', () => {
  it('should digest uri into a string', () => {
    expect(typeof (helpers.uriType('spotify:album:123'))).toBe('string');
    expect(helpers.uriType('spotify:album:123')).toBe('album');
  });
});

describe('sourceIcon', () => {
  it('should digest uri into a string', () => {
    expect(typeof (helpers.sourceIcon('spotify:album:123'))).toBe('string');
    expect(helpers.sourceIcon('spotify:album:123')).toBe('spotify');
  });
});

describe('buildLink', () => {
  it('should build uri into link as a string', () => {
    let link = helpers.buildLink('spotify:album:123');
    expect(typeof (link)).toBe('string');
    expect(link).toBe('/album/c3BvdGlmeTphbGJ1bToxMjM=');
  });

  it('should handle special characters', () => {
    let link = helpers.buildLink('spotify:album:http://test.com/123!@#$%^&[];<>/?" .mp3');
    expect(typeof (link)).toBe('string');
    expect(link).toBe('/album/c3BvdGlmeTphbGJ1bTpodHRwOi8vdGVzdC5jb20vMTIzIUAjJCVeJltdOzw+Lz8iIC5tcDM=');
  });
});

describe('arrayOf', () => {
  it('should return a one-dimensional array', () => {
    const items = [
      {
        uri: '123',
        name: '123',
      },
      {
        uri: '456',
        name: '456',
      },
    ];
    const uris = arrays.arrayOf('uri', items);
    expect(Array.isArray(uris)).toBe(true);
    expect(uris.length).toBe(2);

    for (let uri of uris) {
      expect(typeof (uri)).toBe('string');
    }
  });

  it('should remove null and undefined items', () => {
    let items = [
      {
        uri: '123',
        name: '123',
      },
      {
        uri: null,
        name: '456',
      },
      {
        name: '789',
      },
    ];
    let uris = arrays.arrayOf('uri', items);
    expect(uris.length).toBe(1);
  });
});