export class RoomInfo {
    constructor(room) {
        this.room = room;
        this.info = {};
        // Keep local cache in sync with server-pushed updates.
        this.room.on('updateinfo', (name, value) => { this.info[name] = value; });
    }

    async fetch(name) {
        const req = name
            ? { type: 'room/getinfo', roomId: this.room.roomId, name }
            : { type: 'room/info',    roomId: this.room.roomId };

        const rinfo = await this.room.mwse.EventPooling.request(req);
        if (rinfo.status === 'success') {
            this.info = rinfo.value;
        } else {
            console.warn(rinfo.message);
        }
        return this.info;
    }

    set(name, value) {
        this.info[name] = value;
        this.room.mwse.WSTSProtocol.SendOnly({
            type:   'room/setinfo',
            roomId: this.room.roomId,
            name,
            value
        });
    }

    get(name) {
        return name ? this.info[name] : this.info;
    }
}