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


using ServerCore;
using ServerBase;
using ServerCommon;


namespace GameServer.PacketHandler;

[PacketHandler(typeof(ClientToGameReq), typeof(ClientToGameReq.Types.ReNameFriendFolderReq), typeof(RenameFriendFolderPacketHandler), typeof(GameLoginListener))]
public class RenameFriendFolderPacketHandler : PacketRecvHandler
{
    public override async Task<Result> onProcessPacket(ISession session, IMessage recvMessage)
    {
        var owner = session as Player;
        NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");
        var recv_msg = recvMessage as ClientToGame;
        NullReferenceCheckHelper.throwIfNull(recv_msg, () => $"recv_msg is null !!!");
        var request = recv_msg.Request.ReNameFriendFolderReq;
        var old_folder_name = request.FolderName;
        var new_folder_name = request.NewFolderName;

        var friend_folder_action = owner.getEntityAction<FriendFolderAction>();
        var result = friend_folder_action.renameFriendFolderConditionCheck(old_folder_name, new_folder_name);
        string my_guid = owner.getUserGuid();
        if (result.isFail())
        {
            send_GS2C_ACK_RENAME_FRIEND_FOLDER_LOCATION(owner, result);
            return result;
        }

        result = await owner.runTransactionRunnerSafely(TransactionIdType.PrivateContents, "RenameFriendFolder", delegateRenameFriendFolder);
        if(result.isFail())
        {
            send_GS2C_ACK_RENAME_FRIEND_FOLDER_LOCATION(owner, result);
            return result;
        }

        ServerCommon.FriendFolder? folder = friend_folder_action.getFriendFolder(new_folder_name);
        send_GS2C_ACK_RENAME_FRIEND_FOLDER_LOCATION(owner, folder, result);


        return result;

        async Task<Result> delegateRenameFriendFolder() => await renameFriendFolder(owner, my_guid, old_folder_name, new_folder_name);
    }

    public async Task<Result> renameFriendFolder(
        Player owner, 
        string myGuid,
        string oldFolderName, 
        string newFolderName)
    {
        var friend_folder_action = owner.getEntityAction<FriendFolderAction>();
        var result = await friend_folder_action.renameFriendFolder(myGuid, oldFolderName, newFolderName);
        if(result.isFail()) return result; 
        
        return result;
    }

    private static bool send_GS2C_ACK_RENAME_FRIEND_FOLDER_LOCATION(Player owner, ServerCommon.FriendFolder? folder, Result result)
    {
        var ack_packet = new ClientToGame();
        ack_packet.Response = new ClientToGameRes();

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

        if (folder is not null)
        {
            ack_packet.Response.ReNameFriendFolderRes.FriendFolder = new();
            ack_packet.Response.ReNameFriendFolderRes.FriendFolder.FolderName = folder.FolderName;
            ack_packet.Response.ReNameFriendFolderRes.FriendFolder.IsHold = folder.IsHold;
            ack_packet.Response.ReNameFriendFolderRes.FriendFolder.CreateTime = Timestamp.FromDateTime(folder.CreateTime);
            ack_packet.Response.ReNameFriendFolderRes.FriendFolder.HoldTime = Timestamp.FromDateTime(folder.HoldTime);
        }
        return sendAckPacket(owner, ack_packet);
    }

    private static bool send_GS2C_ACK_RENAME_FRIEND_FOLDER_LOCATION(Player owner, Result result)
    {
        var ack_packet = new ClientToGame();
        ack_packet.Response = new ClientToGameRes();

        ack_packet.Response.ErrorCode = result.ErrorCode;
        ack_packet.Response.ReNameFriendFolderRes = 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;
    }
}