using Google.Protobuf;


using ServerCore;
using ServerBase;
using ServerCommon;


using static ClientToGameRes.Types;


using CHARACTER_GUID = System.String;


namespace GameServer.PacketHandler;

[PacketHandler(typeof(ClientToGameReq), typeof(ClientToGameReq.Types.C2GS_REQ_CHARACTER_APPEARANCE_CUSTOMIZE), typeof(CharacterAppearanceCustomizePacketHandler), typeof(GameLoginListener))]
public class CharacterAppearanceCustomizePacketHandler : PacketRecvHandler
{
    public override async Task onProcessPacketException( ISession entityWithSession, Google.Protobuf.IMessage recvMessage
                                                       , Result errorResult )
    {
        await Task.CompletedTask;

        ArgumentNullReferenceCheckHelper.throwIfNull(entityWithSession);

        var player = entityWithSession as Player;
        NullReferenceCheckHelper.throwIfNull(player, () => $"player is null !!! - {entityWithSession.toBasicString()}");
        var recv_msg = recvMessage as ClientToGame;
        NullReferenceCheckHelper.throwIfNull(recv_msg, () => $"recv_msg is null !!! - {player.toBasicString()}");
        var request = recv_msg.Request.ReqCharacterAppearanceCustomize;
        NullReferenceCheckHelper.throwIfNull(request, () => $"request is null !!! - {player.toBasicString()}");

        send_GS2C_ACK_CHARACTER_APPEARANCE_CUSTOMIZE(player, errorResult, request.ToChangeCharacterGuid);
    }

    private static bool send_GS2C_ACK_CHARACTER_APPEARANCE_CUSTOMIZE( Player owner, Result result
                                                                    , CHARACTER_GUID characterGuid
                                                                    , AppearanceCustomization? appearCustomize = null)
    {
        ArgumentNullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");
        ArgumentNullReferenceCheckHelper.throwIfNull(result, () => $"owner is null !!!");
        

        var server_logic = GameServerApp.getServerLogic();
        NullReferenceCheckHelper.throwIfNull(server_logic, () => $"server_logic is null !!!");

        var err_msg = string.Empty;

        var ack_packet = new ClientToGame();
        ack_packet.Response = new ClientToGameRes();

        ack_packet.Response.ErrorCode = result.ErrorCode;
        var ack_msg = new GS2C_ACK_CHARACTER_APPEARANCE_CUSTOMIZE();
        ack_packet.Response.AckCharacterAppearanceCustomize = ack_msg;

        ack_msg.ToChangeCharacterGuid = characterGuid;

        if (result.isSuccess())
        {
            ArgumentNullReferenceCheckHelper.throwIfNull(appearCustomize, () => $"appearCustomize is null !!!");
            ack_msg.AppearCustomize = appearCustomize;

            var found_transaction_runner = owner.findTransactionRunner(TransactionIdType.PrivateContents);
            if (null == found_transaction_runner)
            {
                err_msg = $"Not found TransactionRunner !!! : {owner.toBasicString()}";
                Log.getLogger().error(err_msg);
            }
            else
            {
                ack_msg.CommonResult = found_transaction_runner.getCommonResult();
            }
        }

        if (false == server_logic.onSendPacket(owner, ack_packet))
        {
            return false;
        }

        return true;
    }

    public override async Task<Result> onProcessPacket(ISession entityWithSession, Google.Protobuf.IMessage recvMessage)
    {
        var result = new Result();
        var err_msg = string.Empty;

        var player = entityWithSession as Player;
        NullReferenceCheckHelper.throwIfNull(player, () => $"player is null !!!");

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

        var request = recv_msg.Request.ReqCharacterAppearanceCustomize;
        NullReferenceCheckHelper.throwIfNull(request, () => $"request is null !!! - {player.toBasicString()}");

        var to_change_character_guid = request.ToChangeCharacterGuid; // 클라이언트는 USER_GUID를 사용 한다.

        var player_action = player.getEntityAction<PlayerAction>();
        NullReferenceCheckHelper.throwIfNull(player_action, () => $"player_action is null !!! - {player.toBasicString()}");

        var selected_character = player_action.getSelectedCharacter();
        if (null == selected_character)
        {
            err_msg = $"Not selected Character !!! - {player.toBasicString()}";
            result.setFail(ServerErrorCode.CharacterNotSelected, err_msg);
            Log.getLogger().error(result.toBasicString());

            send_GS2C_ACK_CHARACTER_APPEARANCE_CUSTOMIZE(player, result, to_change_character_guid);
            return result;
        }

        var server_logic = GameServerApp.getServerLogic();
        NullReferenceCheckHelper.throwIfNull(server_logic, () => $"server_logic is null !!!");

        var fn_character_appearance_customize = async delegate ()
        {
            var result = new Result();

            var character_action = selected_character.getEntityAction<CharacterAction>();
            NullReferenceCheckHelper.throwIfNull(character_action, () => $"character_action is null !!! - {player.toBasicString()}");

            var appearance_customize_action = selected_character.getEntityAction<CharacterAppearanceCustomizeAction>();
            NullReferenceCheckHelper.throwIfNull(appearance_customize_action, () => $"appearance_customize_action is null !!! - {player.toBasicString()}");

            (result, var aprearance_profile) = await appearance_customize_action.tryCustomizeAppearance(request.ToApplyAppearCustomize);
            NullReferenceCheckHelper.throwIfNull(aprearance_profile, () => $"aprearance_profile is null !!!");
            if (result.isFail())
            {
                err_msg = $"Failed to tryCustomizeAppearance() !!! : {result.toBasicString()} - {player.toBasicString()}";
                Log.getLogger().error(err_msg);

                send_GS2C_ACK_CHARACTER_APPEARANCE_CUSTOMIZE(player, result, to_change_character_guid);
                return result;
            }

            var batch = new QueryBatchEx<QueryRunnerWithDocument>( player, LogActionType.CharacterAppearanceCustomize
                                                               , server_logic.getDynamoDbClient()
                                                               , true);
            {
                batch.addQuery(new DBQWriteToAttributeAllWithTransactionRunner());
                batch.addQuery(new QueryFinal());
            }

            result = await QueryHelper.sendQueryAndBusinessLog(batch);
            if (result.isFail())
            {
                send_GS2C_ACK_CHARACTER_APPEARANCE_CUSTOMIZE(player, result, to_change_character_guid);
                return result;
            }

            send_GS2C_ACK_CHARACTER_APPEARANCE_CUSTOMIZE( player, result
                                                        , to_change_character_guid
                                                        , aprearance_profile.toCharacterAppearanceCustomize4Client() );

            // 주변 엔티티들에게 통지 한다.
            character_action.broadcastCharacterInfo();

            return result;
        };

        result = await player.runTransactionRunnerSafely(TransactionIdType.PrivateContents, "CharacterAppearanceCostomize", fn_character_appearance_customize);
        if (result.isFail())
        {
            err_msg = $"Failed to runTransactionRunnerSafely() !!! : {result.toBasicString()} - {player.toBasicString()}";
            Log.getLogger().error(err_msg);
            return result;
        }

        return result;
    }

}