using Cyber.Entities;
using Cyber.Networking.Messages;
using UnityEngine.Networking;

namespace Cyber.Networking.Clientside {
    
    /// <summary>
    /// A Short clientside class for handling sync packages.
    /// It simply keeps track of sync-packages and will not apply them if they are too old.
    /// </summary>
    public class SyncHandler {

        private SyncDB SyncDB;
        private int LatestSyncID = -1;

        /// <summary>
        /// Creates the SyncHandler with SyncDB.
        /// </summary>
        /// <param name="syncDB"></param>
        public SyncHandler(SyncDB syncDB) {
            SyncDB = syncDB;
        }

        /// <summary>
        /// Handle a given Network message. Must be checked to be <see cref="PktType.Sync"/> first.
        /// </summary>
        /// <param name="message"></param>
        public void HandleSyncPkt(NetworkMessage message) {
            SyncPkt SyncPacket = new SyncPkt(SyncDB);
            SyncPacket.Deserialize(message.reader);
            if (LatestSyncID < SyncPacket.SyncPacketID) {
                LatestSyncID = SyncPacket.SyncPacketID;
                SyncPacket.ApplySync(message.reader);
            }
            // Otherwise disregard the sync.

        }

    }
}