namespace NeonTea.Quakeball.TeaNet.Packets {
    /// <summary>A packet for sending stuff over to connections.</summary>
    public abstract class Packet {
        /// <summary>Packet meta-information: Is this packet reliable. Set just before sending.</summary>
        public bool PacketIsReliable = true;
        /// <summary>Packet meta-information: Id of this packet. Set just before sending.</summary>
        public int PacketId;
        /// <summary>Size of this packet in bytes. Only available after the packet has been Read (when received) or Written (when sent).</summary>
        public int Size;

        /// <summary>Write any relevant information about this packet into the buffer.</summary>
        public abstract void Write(ByteBuffer buffer);
        /// <summary>Read and assign any relevant information about this packet from the buffer.</summary>
        public abstract void Read(ByteBuffer buffer);

        /// <summary>Reads packet meta-information from the buffer.</summary>
        public void ReadMeta(ByteBuffer buffer) {
            PacketId = buffer.ReadInt();
            PacketIsReliable = buffer.ReadBool();
        }

        /// <summary>Writes packet meta-information to the buffer.</summary>
        public void WriteMeta(ByteBuffer buffer) {
            buffer.Write(PacketId);
            buffer.Write(PacketIsReliable);
        }

        /// <summary>Make a shallow copy for this packet, copying any primitives but retaining any references to instances.</summary>
        public Packet ShallowCopy() {
            return (Packet)this.MemberwiseClone();
        }
    }

    /// <summary>Defines something as writeable/readable by the buffer. Useful for creating abstractions within packets.</summary>
    public interface Serializable {
        void Write(ByteBuffer buffer);
        void Read(ByteBuffer buffer);
    }

    public enum PacketStage {
        Establishing = 0,
        Rejected = 1,
        Closed = 2,
        Ready = 3,
    }

    public enum ClosingReason {
        Unknown = 0,
        IncorrectVersion = 1,
        Timeout = 2,
        Manual = 3,
    }

}