youtube-moosick/dist/esm/parsers/getPlaylistParser.js

Unofficial Youtube music API, fully written in TypeScript

import { $, $$ } from '../resources/utilities/objectScan.utility.js';
import { ParsersExtended } from './parsersExtended.js';
import { PlaylistHeader, PlaylistURL } from '../resources/resultTypes/playlistURL.js';
import { FlexColumnOffset } from '../enums.js';
import { utils } from '../utils.js';
/**
 * Parser to deal with the output generated by the Moosick#getPlaylist
 *
 * @remarks
 * Do not use this class directly, unless for tests purposes
 * @internal
 */
export class GetPlaylistParser {
    static parsePlaylistURL(context) {
        // Gets all the ListItemRenderers and pushes the first 2 out only
        const flexColumns = [];
        const fixedColumns = [];
        const allResponsiveRenderers = $$('.musicResponsiveListItemRenderer')(context);
        // eslint-disable-next-line @typescript-eslint/prefer-for-of
        for (let i = 0; i < allResponsiveRenderers.length; i++) {
            flexColumns.push(allResponsiveRenderers[i].flexColumns[0].musicResponsiveListItemFlexColumnRenderer);
            flexColumns.push(allResponsiveRenderers[i].flexColumns[1].musicResponsiveListItemFlexColumnRenderer);
            fixedColumns.push(allResponsiveRenderers[i].fixedColumns[0].musicResponsiveListItemFixedColumnRenderer);
        }
        const unprocessedHeader = $$('.musicDetailHeaderRenderer')(context);
        const allThumbnailRenderers = ($$('.musicThumbnailRenderer')(context));
        const continuation = ($('.nextContinuationData')(context));
        const playlistContents = [];
        for (let i = 0; i < flexColumns.length; i += 2) {
            const flexColumnFirstRow = flexColumns[i];
            playlistContents.push({
                trackTitle: $('.text')(flexColumnFirstRow),
                trackId: $('.videoId')(flexColumnFirstRow),
                artist: ParsersExtended.artistParser(flexColumns[i + 1].text.runs),
                thumbnail: allThumbnailRenderers[Math.floor(i / 2)]?.thumbnail?.thumbnails ?? [],
                duration: utils.hms2ms(fixedColumns[Math.floor(i / 2)].text.runs[0].text),
            });
        }
        return PlaylistURL.from({
            headers: unprocessedHeader.length > 0
                ? GetPlaylistParser.playlistURLHeaderParser(unprocessedHeader)
                : undefined,
            playlistContents,
            continuation,
        });
    }
    /**
     * Parses playlist header data and related information
     * @param header - The header object from the returned axios request
     * @internal
     */
    static playlistURLHeaderParser(header) {
        return PlaylistHeader.from({
            playlistName: header[0].title.runs[FlexColumnOffset.ONLYRUN].text,
            owner: header[0].subtitle.runs[2].text,
            createdYear: parseInt(header[0].subtitle.runs[4].text, 10),
            thumbnail: header[0].thumbnail.croppedSquareThumbnailRenderer.thumbnail.thumbnails,
            songCount: parseInt(header[0].secondSubtitle.runs[FlexColumnOffset.ONLYRUN].text, 10),
            approxRunTime: header[0].secondSubtitle.runs[2].text,
        });
    }
}
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