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ServerCommon/Helper/EntityHelper.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Numerics;
+using System.Text;
+using System.Threading.Tasks;
+
+
+using Google.Protobuf.WellKnownTypes;
+using Newtonsoft.Json;
+
+
+using ServerCore;
+using ServerBase;
+using ServerControlCenter;
+
+
+using USER_GUID = System.String;
+using MASTER_GUID = System.String;
+using MASTER_NICKNAME = System.String;
+using Microsoft.AspNetCore.Http;
+using Amazon.S3.Model;
+
+
+
+namespace ServerCommon;
+
+public static class EntityHelper
+{
+    public class MasterProfile
+    {
+        public MASTER_GUID MasterGuid { get; set; } = string.Empty;
+        public MASTER_NICKNAME MasterNickname { get; set; } = string.Empty;
+    }
+
+    public static (Result, MasterProfile?) getMasterProfile<TMasterEntity>(EntityBase owner)
+        where TMasterEntity : EntityBase
+    {
+        var result = new Result();
+        var err_msg = string.Empty;
+
+        var master_entity = owner as TMasterEntity;
+        if (null == master_entity)
+        {
+            if (true == owner.hasMasterGuid())
+            {
+                master_entity = owner.onGetMasterEntity() as TMasterEntity;
+                if (null == master_entity)
+                {
+                    err_msg = $"Not related Master !!! : TMasterEntity:{nameof(TMasterEntity)} - {owner.toBasicString()}";
+                    result.setFail(ServerErrorCode.MasterNotFound, err_msg);
+                    Log.getLogger().error(err_msg);
+
+                    return (result, null);
+                }
+            }
+            else
+            {
+                err_msg = $"Not related Master !!! : TMasterEntity:{nameof(TMasterEntity)} - {owner.toBasicString()}";
+                result.setFail(ServerErrorCode.MasterNotRelated, err_msg);
+                Log.getLogger().error(err_msg);
+
+                return (result, null);
+            }
+        }
+
+        var entity_profile = new MasterProfile();
+        entity_profile.MasterGuid = (master_entity as dynamic).getUserGuid(); // 나중에 가상함수로 수정 하자. - kangms
+        entity_profile.MasterNickname = (master_entity as dynamic).getUserNickname(); // 나중에 가상함수로 수정 하자. - kangms
+
+        return (result, entity_profile);
+    }
+
+    public static OwnerEntityType toOwnerEntityType(this EntityType entityType)
+    {
+        if (EntityType.Player == entityType)
+        {
+            return OwnerEntityType.User;
+        }
+        else if (EntityType.Character == entityType)
+        {
+            return OwnerEntityType.Character;
+        }
+        else if (EntityType.UgcNpc == entityType
+                || EntityType.Beacon == entityType)
+        {
+            return OwnerEntityType.UgcNpc;
+        }
+        else if (EntityType.MyHome == entityType)
+        {
+            return OwnerEntityType.Myhome;
+        }
+
+        var err_msg = $"Invalid EntityType !!! : EntityType:{entityType}";
+        Log.getLogger().error(err_msg);
+
+        return OwnerEntityType.None;
+    }
+
+    public static async Task<(Result, bool)> isUserLoggedIn(DynamoDbClient dynamoDbClient, USER_GUID userGuid)
+    {
+        var result = new Result();
+
+        // 1. UserBaseDoc 조회        
+        (result, var user_primary_key) = await DynamoDBDocBaseHelper.makePrimaryKey<UserBaseDoc>(userGuid);
+        if (result.isFail())
+        {
+            return (result, false);
+        }
+        ArgumentNullException.ThrowIfNull(user_primary_key, $"user_primary_key is null !!! - userGuid:{userGuid}");
+        var query_config = dynamoDbClient.makeQueryConfigForReadByPKSK(user_primary_key.PK);
+
+        (result, var user_base_doc) = await dynamoDbClient.simpleQueryDocTypeWithQueryOperationConfig<UserBaseDoc>(query_config);
+        if (result.isFail())
+        {
+            return (result, false);
+        }
+        NullReferenceCheckHelper.throwIfNull(user_base_doc, () => $"user_base_doc is null !!! : userGuid:{userGuid}");
+
+        // 2. LoggedIn 체크
+        var user_base_attrib = user_base_doc.getAttrib<UserBaseAttrib>();
+        NullReferenceCheckHelper.throwIfNull(user_base_attrib, () => $"user_base_attrib is null !!!");
+
+        return (result, (user_base_attrib.GameLoginDateTime > user_base_attrib.GameLogoutDateTime));
+    }
+
+    public static async Task<(Result, List<ItemDoc>?)> findUserItemsWithCondition( DynamoDbClient dynamoDbClient, USER_GUID userGuid
+                                                                                 , Func<ItemDoc, bool>? filterCondition )
+    {
+        var result = new Result();
+
+        // 1. ItemDoc 조회
+        (result, var user_primary_key) = await DynamoDBDocBaseHelper.makePrimaryKey<ItemDoc>(userGuid);
+        if (result.isFail())
+        {
+            return (result, null);
+        }
+        ArgumentNullException.ThrowIfNull(user_primary_key, $"user_primary_key is null !!! - userGuid:{userGuid}");
+        var query_config = dynamoDbClient.makeQueryConfigForReadByPKOnly(user_primary_key.PK);
+
+        (result, var found_item_docs) = await dynamoDbClient.simpleQueryDocTypesWithQueryOperationConfig<ItemDoc>(query_config);
+        if (result.isFail())
+        {
+            return (result, null);
+        }
+        NullReferenceCheckHelper.throwIfNull(found_item_docs, () => $"found_item_docs is null !!! : userGuid:{userGuid}");
+
+        if (null != filterCondition)
+        {
+            // 2. ItemDoc 조건 체크 !!!
+            var filtered_item_docs = new List<ItemDoc>();
+
+            foreach(var item_doc in found_item_docs)
+            {
+                var is_success = filterCondition.Invoke(item_doc);
+                if (is_success.isFalse())
+                {
+                    continue;
+                }
+
+                filtered_item_docs.Add(item_doc);
+            }
+
+            return (result, filtered_item_docs);
+        }
+
+        return (result, found_item_docs);
+    }
+}