using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Numerics;


using Amazon.S3.Model;


using ServerCore; using ServerBase;
using ServerCommon;
using ServerCommon.BusinessLogDomain;
using static ServerCommon.MetaHelper;


using MetaAssets;


using static ClientToGameReq.Types;
using static ClientToGameRes.Types;


using SESSION_ID = System.Int32;
using WORLD_META_ID = System.UInt32;
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 UgcNpcEditAction : EntityActionBase
    {
        private UgcNpc? m_reserved_ugc_npc_for_edit_nullable;

        private readonly Dictionary<InvenEquipType, HashSet<Int16>> m_reserved_slot_types = new();

        public UgcNpcEditAction(UgcNpc owner)
            : base(owner)
        {
        }

        public override Task<Result> onInit()
        {
            var result = new Result();

            return Task.FromResult(result);
        }

        public override void onClear()
        {
            return;
        }

        public void clearReservedSlotTypes()
        {
            m_reserved_slot_types.Clear();
        }

        public void resetReserved4UgcNpcEdit()
        {
            m_reserved_ugc_npc_for_edit_nullable = null;
        }

        private async Task<Result> checkEditConditions(C2GS_REQ_UGC_NPC_EDIT request)
        {
            await Task.CompletedTask;

            var owner = getOwner() as UgcNpc;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");
            NullReferenceCheckHelper.throwIfNull(request, () => $"request is null !!! - {owner.toBasicString()}");

            var result = new Result();
            var err_msg = string.Empty;

            var master = owner.onGetMasterEntity();
            if(null == master)
            {
                err_msg = $"Not found Master !!! - {owner.toBasicString()}";
                result.setFail(ServerErrorCode.MasterNotFound, err_msg);

                return result;
            }

            var ugc_npc_attribute = owner.getOriginEntityAttribute<UgcNpcAttribute>();
            NullReferenceCheckHelper.throwIfNull(ugc_npc_attribute, () => $"ugc_npc_attribute is null !!! - {owner.toBasicString()}");
            var ugc_npc_inventory_action = owner.getEntityAction<UgcNpcInventoryAction>();
            NullReferenceCheckHelper.throwIfNull(ugc_npc_inventory_action, () => $"ugc_npc_inventory_action is null !!! - {owner.toBasicString()}");
            var user_inventory_action = master.getEntityAction<UserInventoryAction>();
            NullReferenceCheckHelper.throwIfNull(user_inventory_action, () => $"user_inventory_action is null !!! - {owner.toBasicString()}");

            //=====================================================================================
            // 1. 중복된 ITEM_GUID 존재 체크 하기
            //=====================================================================================
            var found_duplicated_guids = InventoryRuleHelper.findContainDuplicatedItemGuid(request.MaterialItemGuids.ToList());
            if(0 < found_duplicated_guids.Count)
            {
                err_msg = $"ItemGuid duplicated !!! - {owner.toBasicString()}";
                result.setFail(ServerErrorCode.ItemGuidDuplicated, err_msg);

                return result;
            }

            //=====================================================================================
            // 2. 문자열 길이 제한 체크 하기
            //=====================================================================================
            if (request.Description.Length > GameConfigMeta.MaxNpcDescriptionChar)
            {
                err_msg = $"UgcNpc Description max count exceed !!! : currCount:{request.Description.Length} < maxCount:{GameConfigMeta.MaxNpcDescriptionChar} - {owner.toBasicString()}";
                result.setFail(ServerErrorCode.UgcNpcDescriptionLengthExceed, err_msg);

                return result;
            }
            if (request.WorldScenario.Length > GameConfigMeta.MaxNpcBackGroundChar)
            {
                err_msg = $"UgcNpc WorldScenario max count exceed !!! : currCount:{request.WorldScenario.Length} < maxCount:{GameConfigMeta.MaxNpcBackGroundChar} - {owner.toBasicString()}";
                result.setFail(ServerErrorCode.UgcNpcWordScenarioLengthExceed, err_msg);

                return result;
            }
            if (request.Greeting.Length > GameConfigMeta.MaxNpcGreetingChar)
            {
                err_msg = $"UgcNpc Greeting max count exceed !!! : currCount:{request.Greeting.Length} < maxCount:{GameConfigMeta.MaxNpcGreetingChar} - {owner.toBasicString()}";
                result.setFail(ServerErrorCode.UgcNpcGreetingLengthExceed, err_msg);

                return result;
            }
            if (request.Introduction.Length > GameConfigMeta.MaxNpcIntroductionChar)
            {
                err_msg = $"UgcNpc Introduction max count exceed !!! : currCount:{request.Introduction.Length} < maxCount:{GameConfigMeta.MaxNpcIntroductionChar} - {owner.toBasicString()}";
                result.setFail(ServerErrorCode.UgcNpcIntroductionLengthExceed, err_msg);

                return result;
            }

            //=====================================================================================
            // 3. 소셜 액션 체크 하기
            //=====================================================================================
            if (false == MetaData.Instance._SocialActionTable.TryGetValue(request.DefaultSocialActionId, out var social_action_meta_data))
            {
                err_msg = $"Not found Default SocialAction MetaId !!! : SocialMetaId:{request.DefaultSocialActionId} - {owner.toBasicString()}";
                result.setFail(ServerErrorCode.SocialActionMetaDataNotFound, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }
            if (request.HabitSocialActionIds.Count > GameConfigMeta.MaxNpcFrequentSocial)
            {
                err_msg = $"Ugc Npc Habit SocialAction Count Exceed !!! : currCount:{request.HabitSocialActionIds.Count} < maxCount:{GameConfigMeta.MaxNpcFrequentSocial} - {owner.toBasicString()}";
                result.setFail(ServerErrorCode.UgcNpcHabitSocialActionCountExceed, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }
            foreach (var social_action_meta_id in request.HabitSocialActionIds)
            {
                if (false == MetaData.Instance._SocialActionTable.TryGetValue(social_action_meta_id, out social_action_meta_data))
                {
                    err_msg = $"Not found Habit SocialAction MetaId !!! : SocialMetaId:{social_action_meta_id} - {owner.toBasicString()}";
                    result.setFail(ServerErrorCode.SocialActionMetaDataNotFound, err_msg);
                    Log.getLogger().error(result.toBasicString());

                    return result;
                }
            }
            if (request.DialogueSocialActionIds.Count > GameConfigMeta.MaxNpcDialogueSocial)
            {
                err_msg = $"Ugc Npc Dialogue SocialAction Count Exceed !!! : currCount:{request.DialogueSocialActionIds.Count} < maxCount:{GameConfigMeta.MaxNpcDialogueSocial} - {owner.toBasicString()}";
                result.setFail(ServerErrorCode.UgcNpcDialogueSocialActionCountExceed, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }
            foreach (var social_action_meta_id in request.DialogueSocialActionIds)
            {
                if (false == MetaData.Instance._SocialActionTable.TryGetValue(social_action_meta_id, out social_action_meta_data))
                {
                    err_msg = $"Not found Inaction SocialAction MetaId !!! : SocialMetaId:{social_action_meta_id} - {owner.toBasicString()}";
                    result.setFail(ServerErrorCode.SocialActionMetaDataNotFound, err_msg);
                    Log.getLogger().error(result.toBasicString());

                    return result;
                }
            }
            
            //=====================================================================================
            // 4. Npc Tag 체크 하기
            //=====================================================================================
            if (request.HashTagMetaIds.Count > GameConfigMeta.MaxNpcTag)
            {
                err_msg = $"Ugc Npc Tag Count Exceed !!! : currCount:{request.HashTagMetaIds.Count} < maxCount:{GameConfigMeta.MaxNpcTag} - {owner.toBasicString()}";
                result.setFail(ServerErrorCode.UgcNpcMaxTagExceed, err_msg);
                Log.getLogger().error(result.toBasicString());
                return result;
            }

            //=====================================================================================
            // 5. 재료 아이템 체크 하기 : 의상 & 타투
            //=====================================================================================
            var to_chek_cloth_item_count = GameConfigMeta.NpcCreateDressRequirement;
            var to_chek_tattoo_item_count = GameConfigMeta.NpcCreateTattooRequirement;

            if (false == MetaData.Instance.Meta.BeaconNpcMetaTable.BeaconNpcMetaDataListbyId.TryGetValue((Int32)ugc_npc_attribute.BodyItemMetaId, out var found_beacon_npc_meta))
            {
                err_msg = $"Not found BeaconNpcMetaData !!! : bodyItem < maxCount:{GameConfigMeta.MaxNpcIntroductionChar} - {owner.toBasicString()}";
                result.setFail(ServerErrorCode.UgcNpcIntroductionLengthExceed, err_msg);

                return result;
            }

            var default_cloth_item_meta_ids = found_beacon_npc_meta.DefaultWears.toMetaIds();
            var default_cloth_item_count = default_cloth_item_meta_ids.Count;

            var selected_cloth_item_count = 0;
            var selected_tattoo_item_count = 0;

            foreach (var material_item_guid in request.MaterialItemGuids)
            {
                var found_item = user_inventory_action.tryGetItemByItemGuid(material_item_guid);
                if (null == found_item)
                {
                    found_item = ugc_npc_inventory_action.tryGetEquipItemByItemGuid(material_item_guid);
                    if(null == found_item)
                    {
                        err_msg = $"Not found Material Item for Ugc Npc !!! : itemGuid:{material_item_guid} - {owner.toBasicString()}";
                        result.setFail(ServerErrorCode.ItemNotFound, err_msg);

                        return result;
                    }
                }

                var item_meta = found_item.getItemMeta();
                NullReferenceCheckHelper.throwIfNull(item_meta, () => $"item_meta is null !!! - {owner.toBasicString()}");

                if (true == item_meta.isClothType())
                {
                    selected_cloth_item_count++;
                    to_chek_cloth_item_count--;
                    Int32.Max(to_chek_cloth_item_count, 0);
                }
                else if (true == item_meta.isTattooType())
                {
                    selected_tattoo_item_count++;
                    to_chek_tattoo_item_count--;
                    Int32.Max(to_chek_tattoo_item_count, 0);
                }

                if (0 == to_chek_cloth_item_count && 0 == to_chek_tattoo_item_count)
                {
                    break;
                }
            }

            if (0 < Int32.Max(to_chek_cloth_item_count - default_cloth_item_count, 0))
            {
                err_msg = $"Not enough Cloth Item for Ugc Npc !!!"
                        + $" : defaultClothItemCount:{default_cloth_item_count} + selectedClothItemCount:{selected_cloth_item_count} <= toCheckClothItemCount:{to_chek_cloth_item_count} - {owner.toBasicString()}";
                result.setFail(ServerErrorCode.UgcNpcClothItemNotEnough, err_msg);

                return result;
            }

            if (0 < to_chek_tattoo_item_count)
            {
                err_msg = $"Not enough Tattoo Item for Ugc Npc !!!"
                        + $" : selectedTattooItemCount:{selected_tattoo_item_count} <= toCheckTattooItemCount:{to_chek_tattoo_item_count} - {owner.toBasicString()}";
                result.setFail(ServerErrorCode.UgcNpcTattooItemNotEnough, err_msg);

                return result;
            }

            return result;
        }

        public async Task<(Result, UgcNpc?)> tryEditUgcNpc(C2GS_REQ_UGC_NPC_EDIT request)
        {
            var ugc_npc = getOwner() as UgcNpc;
            NullReferenceCheckHelper.throwIfNull(ugc_npc, () => $"ugc_npc is null !!!");

            var result = new Result();
            var err_msg = string.Empty;

            var master = ugc_npc.onGetMasterEntity() as Player;
            if (null == master)
            {
                err_msg = $"Not found Master !!! - {ugc_npc.toBasicString()}";
                result.setFail(ServerErrorCode.MasterNotFound, err_msg);

                return (result, null);
            }

            // 직전에 예약되어 있는 슬롯을 모두 초기화 한다.
            clearReservedSlotTypes();

            var account_attribute = master.getOriginEntityAttribute<AccountAttribute>();
            NullReferenceCheckHelper.throwIfNull(request, () => $"request is null !!! - {ugc_npc.toBasicString()}");

            var user_inventory_action = master.getEntityAction<UserInventoryAction>();
            NullReferenceCheckHelper.throwIfNull(user_inventory_action, () => $"user_inventory_action is null !!! - {ugc_npc.toBasicString()}");

            //=====================================================================================
            // 1. 기본적인 편집 조건 체크 하기
            //=====================================================================================
            result = await checkEditConditions(request);
            if (result.isFail())
            {
                return (result, null);
            }

            //=====================================================================================
            // 2. 금전 소모 처리
            //=====================================================================================
            var money_action = master.getEntityAction<MoneyAction>();
            NullReferenceCheckHelper.throwIfNull(request, () => $"request is null !!! - {master.toBasicString()}");

            var req_currency_type = (CurrencyType)ServerCommon.MetaHelper.GameConfigMeta.NpcEditCurrency;
            result = await money_action.spendMoney(req_currency_type, GameConfigMeta.NpcEditCost);
            if (result.isFail())
            {
                return (result, null);
            }

            //=====================================================================================
            // 3. 기타 재설정
            //=====================================================================================
            var ugc_npc_attribute = ugc_npc.getEntityAttribute<UgcNpcAttribute>();
            NullReferenceCheckHelper.throwIfNull(ugc_npc_attribute, () => $"ugc_npc_attribute is null !!! - {master.toBasicString()}");

            ugc_npc_attribute.Title = request.Title;
            ugc_npc_attribute.Greeting = request.Greeting;
            ugc_npc_attribute.Introduction = request.Introduction;
            ugc_npc_attribute.Description = request.Description;
            ugc_npc_attribute.WorldScenario = request.WorldScenario;
            ugc_npc_attribute.DefaultSocialActionMetaId = (META_ID)request.DefaultSocialActionId;
            ugc_npc_attribute.HabitSocialActionMetaIds = request.HabitSocialActionIds.Select<Int32, META_ID>(x => (META_ID)x).ToList();
            ugc_npc_attribute.DialogueSocialActionMetaIds = request.DialogueSocialActionIds.Select<Int32, META_ID>(x => (META_ID)x).ToList();
            ugc_npc_attribute.HashTagMetaIds = request.HashTagMetaIds.Select<Int32, META_ID>(x => (META_ID)x).ToList();

            ugc_npc_attribute.modifiedEntityAttribute();

            //=====================================================================================
            // 4. User의 보유 아이템들을 ugc npc로 소유권 이전 시킨다. (의상 & 타투 아이템 및 타투 Visible 설정)
            //=====================================================================================
            result = await tryTakableItemFromUser( request.MaterialItemGuids.ToList()
                                                 , request.TattooSlotVisibles.ToDictionary<Int32, BoolType>()
                                                 , m_reserved_slot_types
                                                 , master );
            if (result.isFail())
            {
                return (result, null);
            }

            m_reserved_ugc_npc_for_edit_nullable = ugc_npc;

            return (result, ugc_npc);
        }

        public async Task<Result> tryTakableItemFromUser( List<ITEM_GUID> materialItemGuids, Dictionary<Int32, BoolType> tattooSlotVisibles
                                                        , Dictionary<InvenEquipType, HashSet<Int16>> reservedSlotTypes
                                                        , Player master)
        {
            var ugc_npc = getOwner() as UgcNpc;
            NullReferenceCheckHelper.throwIfNull(ugc_npc, () => $"ugc_npc is null !!!");

            var result = new Result();
            var err_msg = string.Empty;

            var user_inventory_action = master.getEntityAction<UserInventoryAction>();
            NullReferenceCheckHelper.throwIfNull(user_inventory_action, () => $"user_inventory_action is null !!! - {master.toBasicString()}");
            var ugc_npc_inventory_action = ugc_npc.getEntityAction<UgcNpcInventoryAction>();
            NullReferenceCheckHelper.throwIfNull(ugc_npc_inventory_action, () => $"ugc_npc_inventory_action is null !!! - {ugc_npc.toBasicString()}");

            //=====================================================================================
            // 1. 삭제해야 하는 아이템 목록을 Ugc Npc 장착 인벤에서 제거 한다.
            //=====================================================================================
            // 장착된 모든 아이템을 얻는다.
            var ugc_npc_equip_items = ugc_npc_inventory_action.getEquipItemAll();

            // 삭제해야 하는 ITEM_GUID 목록을 추출 한다.
            var to_delete_item_guids = KeyComparer.getKeysOnlyInSecond( materialItemGuids
                                                                      , ugc_npc_equip_items.Select(x => {
                                                                                var ugc_npc_item_attribute = x.getEntityAttributeWithReadOnly<UgcNpcItemAttribute>();
                                                                                NullReferenceCheckHelper.throwIfNull(ugc_npc_item_attribute, () => $"ugc_npc_item_attribute is null !!! - {ugc_npc.toBasicString()}");
                                                                                return ugc_npc_item_attribute.ItemGuid;
                                                                            }).ToList()
            );

            foreach(var to_delete_item_guid in to_delete_item_guids)
            {
                (result, var deleted_item) = await ugc_npc_inventory_action.tryDeleteItemByGuid(to_delete_item_guid);
                if (result.isFail())
                {
                    return result;
                }
            }

            //=====================================================================================
            // 2. 추가해야 하는 아이템 목록을 Ugc Npc 장착 인벤에 추가 한다. User => UgcNpc
            //=====================================================================================
            // 소유자를 변경해야 하는 ITEM_GUID 목록을 추출 한다.
            var to_change_owner_item_guids = KeyComparer.getKeysOnlyInSecond( ugc_npc_equip_items.Select(x => {
                                                                                    var ugc_npc_item_attribute = x.getEntityAttributeWithReadOnly<UgcNpcItemAttribute>();
                                                                                    NullReferenceCheckHelper.throwIfNull(ugc_npc_item_attribute, () => $"ugc_npc_item_attribute is null !!! - {ugc_npc.toBasicString()}");
                                                                                    return ugc_npc_item_attribute.ItemGuid;
                                                                                }).ToList()
                                                                            , materialItemGuids
            );

            foreach (var to_change_owner_item_guid in to_change_owner_item_guids)
            {
                var found_item = user_inventory_action.tryGetItemByItemGuid(to_change_owner_item_guid);
                if(null == found_item)
                {
                    err_msg = $"Not found Item for Owner Change !!!, in UserInventory : itemGuid:{to_change_owner_item_guid} - {ugc_npc.toBasicString()}";
                    result.setFail(ServerErrorCode.ItemNotFound, err_msg);

                    return result;
                }

                var item_meta = found_item.getItemMeta();
                NullReferenceCheckHelper.throwIfNull(item_meta, () => $"item_meta is null !!! - {master.toBasicString()}");

                var backup_item_attribute = found_item.getClonedEntityAttribute<UserItemAttribute>();
                NullReferenceCheckHelper.throwIfNull(backup_item_attribute, () => $"backup_item_attribute is null !!! - {master.toBasicString()}");

                (result, var deleted_item) = await user_inventory_action.tryDeleteItemByGuid(to_change_owner_item_guid);
                if (result.isFail())
                {
                    return result;
                }

                (result, ItemDoc? to_create_item_doc_of_ugc_npc) = await backup_item_attribute.changeOwnerAndCreateItemDoc(OwnerEntityType.UgcNpc, ugc_npc.getUgcNpcMetaGuid());
                if (result.isFail())
                {
                    return result;
                }
                NullReferenceCheckHelper.throwIfNull(to_create_item_doc_of_ugc_npc, () => $"to_create_item_doc_of_ugc_npc is null !!! - {master.toBasicString()}");

                (result, var equipable_slot) = ugc_npc_inventory_action.getEquipableSlotOfEquipInven(item_meta, reservedSlotTypes);
                if (result.isFail())
                {
                    return result;
                }

                (result, _) = await ugc_npc_inventory_action.tryTakableToBagWithEquip(to_create_item_doc_of_ugc_npc, equipable_slot);
                if (result.isFail())
                {
                    return result;
                }
            }

            //=====================================================================================
            // 2. 타투 아이템 보이기/안보이기 설정
            //=====================================================================================
            var tattoo_inven = ugc_npc_inventory_action.getEquipInvens()[InvenEquipType.Tattoo] as TattooEquipInven;
            NullReferenceCheckHelper.throwIfNull(tattoo_inven, () => $"tattoo_inven is null !!! - {master.toBasicString()}");

            foreach (var each in tattooSlotVisibles)
            {
                var slot_index = each.Key;
                var slot_visible = each.Value;

                if (false == InvenEquipType.Tattoo.isEquipableTattooSlotType((TattooSlotType)slot_index, ugc_npc.getEntityType()))
                {
                    err_msg = $"Not found TattooSlotType !!! : slotType:{slot_index} - {toBasicString()}, {master.toBasicString()}";
                    result.setFail(ServerErrorCode.TattooEquipRuleTattooSlotTypeNotFound, err_msg);
                    Log.getLogger().error(result.toBasicString());

                    return result;
                }

                var custom_defined_ui_action = ugc_npc.getEntityAction<CustomDefinedUiAction>();
                NullReferenceCheckHelper.throwIfNull(custom_defined_ui_action, () => $"custom_defined_ui_action is null !!! - {toBasicString()}, {master.toBasicString()}");

                var tattoo_slot = (TattooSlotType)slot_index;
                result = await custom_defined_ui_action.setTattooVisible(tattoo_slot, (slot_visible == BoolType.True ? true : false));
                if(result.isFail())
                {
                    return result;
                }
            }

            return result;
        }

        public async Task<QueryBatchBase.QueryResultType> completedUgcNpcEdit(QueryExecutorBase queryExecutorBase)
        {
            await Task.CompletedTask;

            var owner = getOwner() as UgcNpc;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

            var result = new Result();
            var err_msg = string.Empty;

            var query_result = QueryBatchBase.QueryResultType.Success;

            var master = owner.onGetMasterEntity() as Player;
            if (null == master)
            {
                err_msg = $"Not found Master !!! - {owner.toBasicString()}";
                result.setFail(ServerErrorCode.MasterNotFound, err_msg);
                Log.getLogger().error(result.toBasicString());

                return query_result;
            }

            // AiChatServer에 UgcNpc를 시도 한다.
            result = await tryEditCharacterWithAiChatServer(master);
            if (result.isFail())
            {
                err_msg = $"Failed to tryEditCharacterWithAiChatServer() !!!, {result.toBasicString()} - {master.toBasicString()}";
                Log.getLogger().error(err_msg);
            }

            var query_batch = queryExecutorBase.getQueryBatch();
            NullReferenceCheckHelper.throwIfNull(query_batch, () => $"query_batch is null !!! - {master.toBasicString()}");
            var log_action = query_batch.getLogAction();
            NullReferenceCheckHelper.throwIfNull(log_action, () => $"log_action is null !!! - {master.toBasicString()}");

            // 비즈니스 로그 추가
            queryExecutorBase.appendBusinessLog(new BeaconBusinessLog(log_action, owner.toBeaconLogInfo()));

            return QueryBatchBase.QueryResultType.Success;
        }

        public async Task<Result> tryEditCharacterWithAiChatServer(Player master)
        {
            var ugc_npc = getOwner() as UgcNpc;
            NullReferenceCheckHelper.throwIfNull(ugc_npc, () => $"ugc_npc is null !!!"); 

            var server_logic = GameServerApp.getServerLogic();

            var result = new Result();
            var err_msg = string.Empty;

            var ugc_npc_action = ugc_npc.getEntityAction<UgcNpcAction>();
            NullReferenceCheckHelper.throwIfNull(ugc_npc_action, () => $"ugc_npc_action is null !!! - {ugc_npc.toBasicStringWithMaster()}");

            var ai_chat_action = master.getEntityAction<AIChatAction>();
            NullReferenceCheckHelper.throwIfNull(ai_chat_action, () => $"ai_chat_action is null !!! - {master.toBasicString()}");

            var ugc_npc_attribute = ugc_npc.getEntityAttribute<UgcNpcAttribute>();
            NullReferenceCheckHelper.throwIfNull(ugc_npc_attribute, () => $"ugc_npc_attribute is null !!! - {ugc_npc.toBasicStringWithMaster()}");

            if(false == ugc_npc_attribute.IsRegisteredAiChatServer)
            {
                err_msg = $"Not registered UgcNpc at AiChatServer !!! : ugcNpcMetaGuid:{ugc_npc_attribute.UgcNpcMetaGuid}, ugcNpcNickname:{ugc_npc_attribute.Nickname}, "
                        + $" - {ugc_npc.toBasicStringWithMaster()}";
                Log.getLogger().error(err_msg);

                result = await ai_chat_action.registerCharacter(ugc_npc_action.toRegisterInfoWithAiChatServer());
                if (result.isFail())
                {
                    err_msg = $"Failed to AiChatAction.registerCharacter() !!!, {result.toBasicString()}";
                    Log.getLogger().error(err_msg);

                    return result;
                }
            }

            result = await ai_chat_action.updateCharacter(ugc_npc_action.toRegisterInfoWithAiChatServer());
            if (result.isFail())
            {
                err_msg = $"Failed to AiChatAction.updateCharacter() !!!, {result.toBasicString()}";
                Log.getLogger().error(err_msg);

                return result;
            }

            ugc_npc_attribute.IsRegisteredAiChatServer = true;
            ugc_npc_attribute.modifiedEntityAttribute();

            (result, var ugc_npc_doc) = await ugc_npc_attribute.toDocBase();
            if (result.isFail() || null == ugc_npc_doc)
            {
                return result;
            }

            var dynamo_db_client = server_logic.getDynamoDbClient();
            NullReferenceCheckHelper.throwIfNull(dynamo_db_client, () => $"dynamo_db_client is null !!! - {ugc_npc.toBasicStringWithMaster()}");

            result = await dynamo_db_client.simpleUpsertDocumentWithDocType(ugc_npc_doc);
            if (result.isFail())
            {
                err_msg = $"Failed to DynamoDbClient.simpleUpsertDocumentWithDocType() !!! : {result.toBasicString()} - {ugc_npc.toBasicStringWithMaster()}";
                Log.getLogger().error(err_msg);

                return result;
            } 

            return result;
        }

        public async Task<(Result, GS2C_ACK_UGC_NPC_EDIT?)> toAckUgcNpcEdit()
        {
            var ugc_npc = getOwner() as UgcNpc;
            NullReferenceCheckHelper.throwIfNull(ugc_npc, () => $"ugc_npc is null !!!");

            var result = new Result();
            var err_msg = string.Empty;

            var master = ugc_npc.onGetMasterEntity();
            if (null == master)
            {
                err_msg = $"Not found Master !!! - {ugc_npc.toBasicString()}";
                result.setFail(ServerErrorCode.MasterNotFound, err_msg);

                return (result, null);
            }

            NullReferenceCheckHelper.throwIfNull(m_reserved_ugc_npc_for_edit_nullable, () => $"m_reserved_ugc_npc_for_edit_nullable is null !!! - {ugc_npc.toBasicString()}");

            var ugc_npc_attribute = m_reserved_ugc_npc_for_edit_nullable.getEntityAttribute<UgcNpcAttribute>();
            NullReferenceCheckHelper.throwIfNull(ugc_npc_attribute, () => $"ugc_npc_attribute is null !!! - {ugc_npc.toBasicString()}");

            var ugc_npc_inventory_action = m_reserved_ugc_npc_for_edit_nullable.getEntityAction<UgcNpcInventoryAction>();
            NullReferenceCheckHelper.throwIfNull(ugc_npc_inventory_action, () => $"ugc_npc_inventory_action is null !!! - {ugc_npc.toBasicString()}");

            var ack = new GS2C_ACK_UGC_NPC_EDIT();
            ack.EditedUgcNpcMetaGuid = ugc_npc_attribute.UgcNpcMetaGuid;
            ack.Title = ugc_npc_attribute.Title;
            ack.Greeting = ugc_npc_attribute.Greeting;
            ack.Introduction = ugc_npc_attribute.Introduction;
            ack.Description = ugc_npc_attribute.Description;
            ack.WorldScenario = ugc_npc_attribute.WorldScenario;
            ack.DefaultSocialActionId = (Int32)ugc_npc_attribute.DefaultSocialActionMetaId;
            ack.HabitSocialActionIds.AddRange(ugc_npc_attribute.HabitSocialActionMetaIds.Select<META_ID, Int32>(x => (Int32)x).ToList());
            ack.DialogueSocialActionIds.AddRange(ugc_npc_attribute.DialogueSocialActionMetaIds.Select<META_ID, Int32>(x => (Int32)x).ToList());
            ack.HashTagMetaIds.Add(ugc_npc_attribute.HashTagMetaIds.Select<META_ID, Int32>(x => (Int32)x).ToList());

            resetReserved4UgcNpcEdit();

            var found_transaction_runner = master.findTransactionRunner(TransactionIdType.PrivateContents);
            if (null == found_transaction_runner)
            {
                err_msg = $"Not found TransactionRunner !!! : {toBasicString()} - {ugc_npc.toBasicString()}";
                Log.getLogger().warn(err_msg);

                return (result, null);
            }

            ack.CommonResult = found_transaction_runner.getCommonResult();

            return await Task.FromResult((result, ack));
        }
    }
}