class Songs {
    constructor(info) {
        if (!info || !info.userid) throw "Can not construct empty profile";
        this.userid = info.userid;
        this.data = info.data || {};

        const allowedParams = ["title", 'author', "content", "contentHistory", "bpm", "lang", "reactions", "root", 'beatsPerTempo'];
        for (const key in info) {
            if (info.hasOwnProperty(key) && allowedParams.includes(key)) {
                this[key] = info[key];
            }
        }
        this.createdAt = info.createdAt || new Date();
        this.lastUpdated = info.lastUpdated || this.createdAt;
        this.comments = info.comments || [];
        this.reactions = info.reactions || {};
    }

    toObj() {
        return { ...this };
    }
}

module.exports = Songs;