using System.Collections.Generic;
using Util;

namespace Network {
    public class ConnectionList {

        private Peer Peer;
        private List<Connection> Connections = new List<Connection>();

        public ConnectionList(Peer peer) {
            Peer = peer;
        }

        public int Length { get { return Connections.Count; } }
        public Connection this[int i] {
            get {
                return Connections[i];
            }
        }

        public bool AddConnection(Connection conn) {
            if (!Contains(conn)) {
                Connections.Add(conn);
                Peer.Connected(conn);
                return true;
            }
            return false;
        }

        public bool RemoveConnection(Connection conn) {
            if (Contains(conn)) {
                Connections.Remove(conn);
                return true;
            }
            return false;
        }

        public bool Contains(Connection conn) {
            for (int i = 0; i < Connections.Count; i++) {
                Connection inList = Connections[i];
                if (inList.Equals(conn)) {
                    return true;
                }
            }
            return false;
        }

        public Optional<Connection> GetOriginal(Connection conn) {
            foreach (Connection inList in Connections) {
                if (inList.Equals(conn)) {
                    return inList;
                }
            }
            return Optional<Connection>.None;
        }

        public Optional<Connection> GetOriginal(string address, int port) {
            return GetOriginal(new Connection(address, port));
        }
    }
}