using System.Text;


using RabbitMQ.Client;
using RabbitMQ.Client.Events;


using ServerCore;
using ServerBase;
using ServerCommon;


using SESSION_ID = System.Int32;
using META_ID = System.UInt32;
using ENTITY_GUID = System.String;
using ACCOUNT_ID = System.String;
using OWNER_GUID = System.String;
using USER_GUID = System.String;
using CHARACTER_GUID = System.String;
using ITEM_GUID = System.String;


namespace GameServer;


public class RabbitMQ4Game : RabbitMqConnector, IWithPacketNamespaceVerifier
{
    public readonly string EXCHANGE_ALL_GAME_NAME = ServerCommon.Constant.EXCHANGE_ALL_GAME_NAME;


    private IModel? m_exchange_all_game_channel = null;


    public RabbitMQ4Game(ModuleContext moduleContext) :
        base(moduleContext)
    {
    }

    protected override Result onCreateExchangeChannel()
    {
        var result = new Result();

        m_exchange_all_game_channel = createExchangeChannel(EXCHANGE_ALL_GAME_NAME, ExchangeType.Fanout);

        return result;
    }

    public void sendChat(string chatMessage, string sender, ChatType chatType)
    {
        var message = new ServerMessage();
        message.MessageTime = Google.Protobuf.WellKnownTypes.Timestamp.FromDateTime(DateTime.UtcNow);
        message.Chat = new ServerMessage.Types.Chat();
        message.Chat.SenderNickName = sender;
        message.Chat.Message = chatMessage;
        message.Chat.ReceiverGuid = string.Empty;
        message.Chat.Receiverstate = 0;
        message.Chat.Type = chatType;

        string messageJson = Google.Protobuf.JsonFormatter.Default.Format(message);

        var body = Encoding.UTF8.GetBytes(messageJson);
        if (null == m_exchange_all_game_channel)
        {
            return;
        }

        m_exchange_all_game_channel.BasicPublish( exchange: EXCHANGE_ALL_GAME_NAME
                                                , routingKey: ""
                                                , basicProperties: null
                                                , body: body );
    }

    public void sendExchangeMannequinDisplayItemNoti(string anchorGuid, List<int> displayItmeIds)
    {
        var message = new ServerMessage();
        message.MessageTime = Google.Protobuf.WellKnownTypes.Timestamp.FromDateTime(DateTime.UtcNow);
        message.ExchangeMannequinDisplayItemNoti = new();
        message.ExchangeMannequinDisplayItemNoti.AnchorGuid = anchorGuid;
        message.ExchangeMannequinDisplayItemNoti.DisplayItemIds.AddRange(displayItmeIds);

        string messageJson = Google.Protobuf.JsonFormatter.Default.Format(message);
        var body = Encoding.UTF8.GetBytes(messageJson);

        if (null == m_exchange_all_game_channel)
        {
            return;
        }

        m_exchange_all_game_channel.BasicPublish( exchange: EXCHANGE_ALL_GAME_NAME
                                                , routingKey: ""
                                                , basicProperties: null
                                                , body: body );
    }

    public void sendMessageToExchangeAllGame(ServerMessage message)
    {
        message.MessageTime = Google.Protobuf.WellKnownTypes.Timestamp.FromDateTime(DateTime.UtcNow);

        string messageJson = Google.Protobuf.JsonFormatter.Default.Format(message);
        var body = Encoding.UTF8.GetBytes(messageJson);

        if (null == m_exchange_all_game_channel)
        {
            return;
        }

        m_exchange_all_game_channel.BasicPublish( exchange: EXCHANGE_ALL_GAME_NAME
                                                , routingKey: ""
                                                , basicProperties: null
                                                , body: body );
    }

    protected override bool onCheckByExchangeType<T>(BasicDeliverEventArgs ea, T recvProtocol)
    {
        var msg = recvProtocol as ServerMessage;
        if (msg is null) return false;

        if (true == ea.Exchange.Equals(EXCHANGE_ALL_GAME_NAME, StringComparison.OrdinalIgnoreCase))
        {
            // 10초 전에 생성된 메시지는 드랍
            if (msg.MessageTime.ToDateTime() < DateTime.UtcNow.AddSeconds(-10))
            {
                return false;
            }
        }
        return true;
    }
}