/*Canopy - The next generation of stoner streaming software
Copyright (C) 2024-2026 Rainbownapkin and the TTN Community

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program.  If not, see <https://www.gnu.org/licenses/>.*/

/**
 * Object to relay WebRTC Negotiation data for a single channel
 */
class webRTCHandler{
    /**
     * Instantiates a new object to relay WebRTC Negotiation data for a single channel
     * @param {channelManager} server - Parent server object
     * @param {activeChannel} channel - Parent Channel object
     */
    constructor(server, channel){
        /**
         * Parent Server Object
         */
        this.server = server
        
        /**
         * Parent Channel Object
         */
        this.channel = channel;

        /**
         * Declare class property to hold socked it of the current device/browser-tab we're streaming from 
         */
        this.currentStreamer;
    }

    /**
     * Defines server-side socket.io listeners for newly connected sockets
     * @param {Socket} socket - Newly connected socket to define listeners against
     */
    defineListeners(socket){
        //Queueing Functions
        socket.on("relayRTCData", (data) => {this.relayRTCData(socket, data)});
    }

    startStream(socket){
        this.currentStreamer = socket.id;
    }

    endStream(){
        this.currentStreamer = null;
    }

    relayRTCData(socket, data){
        //Set the recipient to the current streamer by default, assuming that this isn't coming from the streaming socket
        let recipientID = this.currentStreamer;

        //if data is being relayed from streaming socket to a viewer
        if(socket.id == this.currentStreamer){
            //Change recipient to reflect streaming socket's request
            recipientID = data.recipient;
        }

        //Get recipient socket
        const recipient = this.server.io.sockets.sockets.get(recipientID);

        //Relay RTC Data
        recipient.emit("RTCData", {
            type: data.type,
            body: data.body
        });
    }
}

module.exports = webRTCHandler;