using System.Collections;
using System.Collections.Generic;
using System.Net;
using System;

using NeonTea.Quakeball.TeaNet.Packets;

namespace NeonTea.Quakeball.TeaNet.Peers {
    public class Connection {

        public IPEndPoint Endpoint;
        public ulong uid;
        public ConnectionStatus Status;
        public ClosingReason ClosingReason;

        public ConnectionInternalData Internal = new ConnectionInternalData();

        public Connection(IPEndPoint endpoint, ConnectionStatus status = ConnectionStatus.Establishing) {
            Endpoint = endpoint;
            Status = status;

            Internal.LastMessage = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
            Internal.LatestInwardReliable = -1;
            Internal.LatestInwardUnreliable = -1;
            Internal.LatestOutwardReliable = -1;
            Internal.LatestOutwardUnreliable = -1;
        }

        public bool IsReady() {
            return Status == ConnectionStatus.Ready;
        }

        public bool IsDisconnected() {
            return !(Status == ConnectionStatus.Ready
                || Status == ConnectionStatus.Awaiting
                || Status == ConnectionStatus.Establishing);
        }
    }

    public struct ConnectionInternalData {
        public byte AssignedProtocol;
        public long LastMessage;
        public int LatestOutwardReliable; // Last reliable Packet ID the connection has told us they have
        public int LatestOutwardUnreliable; // Last unreliablePacket ID the connection has told us they have
        public int LatestInwardReliable; // Last reliable Packet ID we've received from the connection
        public int LatestInwardUnreliable; // Last unreliable Packet ID we've received from the connection

        public int ReliablePacketIDCounter; // Reliable Packet ID counter for packets we're sending them
        public int UnreliablePacketIDCounter; // Unreliable Packet ID counter for packets we're sending them
    }

    public enum ConnectionStatus {
        Awaiting,       // Awaiting an establishing
        Establishing,   // Attempting to establish
        Ready,          // Ready for packet sending
        Rejected,       // Rejected connection at endpoint, sending Rejected
        Closed,         // Closed connection at endpoint, sending Closed
        Stopped,        // Not sending packages
        Lost,           // Connection Lost
    }
}