RocketChat/Rocket.Chat

import type { IMessage } from '@rocket.chat/core-typings';

// look for spotify syntax (e.g.: spotify:track:1q6IK1l4qpYykOaWaLJkWG) on the message and add them to the urls array
export class BeforeSaveSpotify {
    async convertSpotifyLinks({ message }: { message: IMessage }): Promise<IMessage> {
        if (!message.msg?.trim()) {
            return message;
        }

        const urls = Array.isArray(message.urls) ? message.urls : [];

        let changed = false;

        const msgParts = message.msg.split(/(```\w*[\n ]?[\s\S]*?```+?)|(`(?:[^`]+)`)/);
        for (let index = 0; index < msgParts.length; index++) {
            const part = msgParts[index];

            if (!/(?:```(\w*)[\n ]?([\s\S]*?)```+?)|(?:`(?:[^`]+)`)/.test(part)) {
                const re = /(?:^|\s)spotify:([^:\s]+):([^:\s]+)(?::([^:\s]+))?(?::(\S+))?(?:\s|$)/g;

                let match;
                while ((match = re.exec(part)) != null) {
                    const data = match.slice(1).filter(Boolean);
                    const path = data.map((value) => encodeURI(value)).join('/');
                    const url = `https://open.spotify.com/${path}`;
                    urls.push({ url, source: `spotify:${data.join(':')}`, meta: {} });
                    changed = true;
                }
            }
        }

        if (changed) {
            message.urls = urls;
        }

        return message;
    }
}