using Google.Protobuf;


using ServerCore;
using ServerBase;
using ServerCommon;


namespace GameServer.PacketHandler;


[PacketHandler(typeof(ClientToGameReq), typeof(ClientToGameReq.Types.GetFriendListReq), typeof(GetFriendsPacketHandler), typeof(GameLoginListener))]
public class GetFriendsPacketHandler : PacketRecvHandler
{
    public override async Task<Result> onProcessPacket(ISession session, IMessage recvMessage)
    {
        var owner = session as Player;
        NullReferenceCheckHelper.throwIfNull(owner, () => "Player is null !!!");

        var friend_agent_action = owner.getEntityAction<FriendAgentAction>();
        NullReferenceCheckHelper.throwIfNull(friend_agent_action, () => $"FriendAgentAction is null !!! - player:{owner.toBasicString()}");

        var result = await friend_agent_action.loadFriends();
        if (result.isFail())
        {
            send_GS2C_ACK_FRIENDS(owner, result);
            return result;
        }

        var friend_infos = await friend_agent_action.getFriendsInfo();

        send_GS2C_ACK_FRIENDS(owner, friend_infos, result);

        return result;
    }


    public static Result send_GS2C_ACK_FRIENDS(Player owner, List<FriendInfo> friendInfos, Result result)
    {
        var ack_packet = new ClientToGame();
        ack_packet.Response = new ClientToGameRes();
        ack_packet.Response.ErrorCode = result.ErrorCode;
        ack_packet.Response.GetFriendListRes = new ClientToGameRes.Types.GetFriendListRes();
        ack_packet.Response.GetFriendListRes.FriendList.AddRange(friendInfos);

        if (false == GameServerApp.getServerLogic().onSendPacket(owner, ack_packet))
        {
            string err_msg = $"send_GS2C_ACK_FRIENDS Fail !!! : owner:{owner.toBasicString()}";
            result.setFail(ServerErrorCode.ProudNetException, err_msg);
            Log.getLogger().error(result.toBasicString());

            return result;
        }

        return result;

    }

    public static Result send_GS2C_ACK_FRIENDS(Player owner, Result result)
    {
        var ack_packet = new ClientToGame();
        ack_packet.Response = new ClientToGameRes();
        ack_packet.Response.ErrorCode = result.ErrorCode;
        ack_packet.Response.GetFriendListRes = new ClientToGameRes.Types.GetFriendListRes();

        if (false == GameServerApp.getServerLogic().onSendPacket(owner, ack_packet))
        {
            string err_msg = $"send_GS2C_ACK_FRIENDS Fail !!! : owner:{owner.toBasicString()}";
            result.setFail(ServerErrorCode.ProudNetException, err_msg);
            Log.getLogger().error(result.toBasicString());

            return result;
        }
        return result;
    }


}