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ServerCommon/Doc/OwnerContents/NicknameDoc.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+
+using Newtonsoft.Json;
+
+
+
+using ServerCore;
+using ServerBase;
+
+
+
+using SESSION_ID = System.Int32;
+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;
+using NICKNAME = System.String;
+
+
+
+namespace ServerCommon;
+
+public class NicknameAttrib : AttribBase
+{
+    [JsonProperty("owner_guid")]
+    public OWNER_GUID OwnerGuid { get; set; } = string.Empty;
+
+    [JsonProperty("owner_entity_type")]
+    public OwnerEntityType OwnerEntityType { get; set; } = OwnerEntityType.None;
+
+    [JsonProperty("nickname")]
+    public string Nickname { get; set; } = string.Empty;
+
+    public NicknameAttrib()
+        : base(typeof(NicknameAttrib).Name)
+    { }
+}
+
+//=============================================================================================
+// PK(Partition Key)    : "nickname#owner_guid"
+// SK(Sort Key)         : ""
+// DocType              : NicknameDoc
+// NicknameAttrib       : {}
+// ...
+//=============================================================================================
+public class NicknameDoc : DynamoDbDocBase
+{
+    private static string getPrefixOfPK() { return "nickname#"; }
+    private static string getPrefixOfSK() { return ""; }
+
+    public NicknameDoc()
+        : base(typeof(NicknameDoc).Name)
+    {
+        appendAttribWrapperAll();
+    }
+
+    public NicknameDoc(OwnerEntityType ownerEntityType, OWNER_GUID ownerGuid, NICKNAME nickname)
+        : base(typeof(NicknameDoc).Name)
+    {
+        setCombinationKeyForPK(ownerGuid);
+
+        appendAttribWrapperAll();
+
+        fillUpPrimaryKey(onMakePK(), onMakeSK());
+
+        var nickname_attrib = getAttrib<NicknameAttrib>();
+        ArgumentNullException.ThrowIfNull(nickname_attrib, $"nickname_attrib is null !!! - ownerEntityType:{ownerEntityType}, ownerGuid:{ownerGuid}, nickname:{nickname}");
+
+        nickname_attrib.OwnerEntityType = ownerEntityType;
+        nickname_attrib.OwnerGuid = ownerGuid;
+        nickname_attrib.Nickname = nickname;
+    }
+
+    private void appendAttribWrapperAll()
+    {
+        appendAttribWrapper(new AttribWrapper<NicknameAttrib>());
+    }
+
+    protected override string onGetPrefixOfPK()
+    {
+        return getPrefixOfPK();
+    }
+
+    public static async Task<(Result result, NicknameAttrib? attrib)> findNicknameFromGuid(string ownerGuid)
+    {
+        var server_logic = ServerLogicApp.getServerLogicApp();
+        NullReferenceCheckHelper.throwIfNull(server_logic, () => $"server_logic is null !!!");
+        var dynamo_db_client = server_logic.getDynamoDbClient();
+        NullReferenceCheckHelper.throwIfNull(dynamo_db_client, () => $"dynamo_db_client is null !!!");
+
+        return await findNicknameFromGuid(dynamo_db_client, ownerGuid);
+    }
+
+    public static async Task<(Result result, NicknameAttrib? attrib)> findNicknameFromGuid(DynamoDbClient dynamoDbClient, string ownerGuid)
+    {
+        var result = new Result();
+        var nickname_docs = new List<NicknameDoc>();
+
+        (result, var make_primary_key) = await DynamoDBDocBaseHelper.makePrimaryKey<NicknameDoc>(ownerGuid);
+        if (result.isFail())
+        {
+            return (result, null);
+        }
+        ArgumentNullReferenceCheckHelper.throwIfNull(make_primary_key, () => $"make_primary_key is null !!!");
+        var query_config = dynamoDbClient.makeQueryConfigForReadByPKSK(make_primary_key.PK, make_primary_key.SK);
+
+        (result, nickname_docs) = await dynamoDbClient.simpleQueryDocTypesWithQueryOperationConfig<NicknameDoc>(query_config, true);
+        if (result.isFail())
+        {
+            return (result, null);
+        }
+
+        var attrib = nickname_docs[0].getAttrib<NicknameAttrib>();
+        if (attrib == null) return (result, null);
+
+        return (result, attrib);
+    }
+}