using Google.Protobuf;
using Google.Protobuf.WellKnownTypes;


using ServerCore;
using ServerBase;
using ServerCommon;
using ServerCommon.BusinessLogDomain;


namespace GameServer.PacketHandler;


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

        var recv_msg = recvMessage as ClientToGame;
        NullReferenceCheckHelper.throwIfNull(recv_msg, () => $"recv_msg is null !!! - {owner.toBasicString()}");

        var request = recv_msg.Request.CreateFriendFolderReq;
        var folder_name = request.FolderName;

        var result = new Result();

        result = await owner.runTransactionRunnerSafely(TransactionIdType.PrivateContents, "CreateFriendFolder", delegateCreateFriendFolder);
        if (result.isFail())
        {
            send_GS2C_ACK_CREATE_FRIEND_FOLDER(owner, ref result);
            return result;
        }

        var friend_action = owner.getEntityAction<FriendFolderAction>();
        NullReferenceCheckHelper.throwIfNull(friend_action, () => $"friend_action is null !!! - {owner.toBasicString()}");

        var folder = friend_action.getFriendFolder(folder_name);
        send_GS2C_ACK_CREATE_FRIEND_FOLDER(owner, folder, ref result);

        return result;

        async Task<Result> delegateCreateFriendFolder() => await createFriendFolder(owner, folder_name);
    }

    private async Task<Result> createFriendFolder(Player owner, string folderName)
    {
        var friend_action = owner.getEntityAction<FriendFolderAction>();
        NullReferenceCheckHelper.throwIfNull(friend_action, () => $"friend_action is null !!! - {owner.toBasicString()}");

        var result = friend_action.addFriendFolder(folderName);
        if (result.isFail()) return result;

        var server_logic = GameServerApp.getServerLogic();
        var batch = new QueryBatchEx<QueryRunnerWithDocument>(owner, LogActionType.None, server_logic.getDynamoDbClient());
        {
            batch.addQuery(new DBQWriteToAttributeAllWithTransactionRunner());
        }
        result = await QueryHelper.sendQueryAndBusinessLog(batch);

        return result;
    }

    private static bool send_GS2C_ACK_CREATE_FRIEND_FOLDER(Player owner, ServerCommon.FriendFolder? folder, ref Result result)
    {
        var ack_packet = new ClientToGame();
        ack_packet.Response = new ClientToGameRes();

        ack_packet.Response.ErrorCode = result.ErrorCode;
        ack_packet.Response.CreateFriendFolderRes = new();

        if (folder is not null)
        {
            ack_packet.Response.CreateFriendFolderRes.FriendFolder = new();
            ack_packet.Response.CreateFriendFolderRes.FriendFolder.FolderName = folder.FolderName;
            ack_packet.Response.CreateFriendFolderRes.FriendFolder.IsHold = folder.IsHold;
            ack_packet.Response.CreateFriendFolderRes.FriendFolder.CreateTime = Timestamp.FromDateTime(folder.CreateTime);
            ack_packet.Response.CreateFriendFolderRes.FriendFolder.HoldTime = Timestamp.FromDateTime(folder.HoldTime);
        }

        return sendAckPacket(owner, ack_packet);
    }

    private static bool send_GS2C_ACK_CREATE_FRIEND_FOLDER(Player owner, ref Result result)
    {
        var ack_packet = new ClientToGame();
        ack_packet.Response = new ClientToGameRes();

        ack_packet.Response.ErrorCode = result.ErrorCode;
        ack_packet.Response.CreateFriendFolderRes = new();

        return sendAckPacket(owner, ack_packet);


    }

    private static bool sendAckPacket(Player owner, ClientToGame ackPacket)
    {
        if (false == GameServerApp.getServerLogic().onSendPacket(owner, ackPacket)) return false;

        return true;
    }

}