bandcamp-fetch/dist/cjs/lib/show/ShowParser.js

Scrape Bandcamp content

"use strict";
var __classPrivateFieldGet = (this && this.__classPrivateFieldGet) || function (receiver, state, kind, f) {
    if (kind === "a" && !f) throw new TypeError("Private accessor was defined without a getter");
    if (typeof state === "function" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError("Cannot read private member from an object whose class did not declare it");
    return kind === "m" ? f : kind === "a" ? f.call(receiver) : f ? f.value : state.get(receiver);
};
var _a, _ShowParser_getShowIdFromUrl, _ShowParser_getShowUrl;
Object.defineProperty(exports, "__esModule", { value: true });
const cheerio_1 = require("cheerio");
const html_entities_1 = require("html-entities");
const Parse_js_1 = require("../utils/Parse.js");
const Constants_js_1 = require("../utils/Constants.js");
class ShowParser {
    static parseShow(html, opts) {
        const $ = (0, cheerio_1.load)(html);
        const blob = (0, html_entities_1.decode)($('#pagedata[data-blob]').attr('data-blob'));
        let parsed;
        try {
            parsed = JSON.parse(blob);
        }
        catch (error) {
            throw new Parse_js_1.ParseError('Failed to parse show: JSON error in data-blob.', html, error);
        }
        if (typeof parsed === 'object' && parsed.bcw_data) {
            const showId = __classPrivateFieldGet(this, _a, "m", _ShowParser_getShowIdFromUrl).call(this, opts.showUrl);
            let showInfo;
            if (showId !== null) {
                showInfo = parsed.bcw_data?.[showId];
            }
            if (showInfo) {
                const show = {
                    type: 'show',
                    name: showInfo.title,
                    url: __classPrivateFieldGet(this, _a, "m", _ShowParser_getShowUrl).call(this, showInfo.show_id),
                    publishedDate: showInfo.published_date,
                    description: showInfo.desc,
                    shortDescription: showInfo.short_desc,
                    imageCaption: showInfo.image_caption,
                    subtitle: showInfo.subtitle,
                    duration: showInfo.audio_duration,
                    screenImageUrl: `${opts.imageBaseUrl}/img/${showInfo.show_v2_image_id}_0`
                };
                const mp3StreamUrl = showInfo.audio_stream?.['mp3-128'];
                const opusStreamUrl = showInfo.audio_stream?.['opus-lo'];
                if (mp3StreamUrl || opusStreamUrl) {
                    show.streamUrl = {};
                    if (mp3StreamUrl) {
                        show.streamUrl['mp3-128'] = mp3StreamUrl;
                    }
                    if (opusStreamUrl) {
                        show.streamUrl['opus-lo'] = opusStreamUrl;
                    }
                }
                if (opts.showImageFormat?.id) {
                    show.imageUrl = `${opts.imageBaseUrl}/img/${showInfo.show_v2_image_id}_${opts.showImageFormat.id}.jpg`;
                }
                show.tracks = showInfo.tracks.map((track) => {
                    const trackItem = {
                        id: track.track_id,
                        name: track.title,
                        url: track.track_url,
                        seekPosition: track.timecode,
                        artist: {
                            name: track.artist,
                            url: `https://${track.url_hints.subdomain}.bandcamp.com`,
                            location: track.location_text
                        }
                    };
                    if (opts.albumImageFormat?.id) {
                        trackItem.imageUrl = `${opts.imageBaseUrl}/img/a${track.track_art_id}_${opts.albumImageFormat.id}.jpg`;
                    }
                    if (opts.artistImageFormat?.id && trackItem.artist) {
                        trackItem.artist.imageUrl = `${opts.imageBaseUrl}/img/${track.bio_image_id}_${opts.artistImageFormat.id}.jpg`;
                    }
                    if (track.album_title) {
                        trackItem.album = {
                            id: track.album_id,
                            name: track.album_title,
                            url: track.album_url
                        };
                    }
                    return trackItem;
                });
                return show;
            }
        }
        throw new Parse_js_1.ParseError('Failed to parse show: missing bcw_data.', html);
    }
}
_a = ShowParser, _ShowParser_getShowIdFromUrl = function _ShowParser_getShowIdFromUrl(showUrl) {
    const params = (0, Parse_js_1.splitUrl)(showUrl).searchParams;
    return params.get('show');
}, _ShowParser_getShowUrl = function _ShowParser_getShowUrl(showId) {
    return `${Constants_js_1.URLS.SITE_URL}/?show=${showId}`;
};
exports.default = ShowParser;
//# sourceMappingURL=ShowParser.js.map