[feat] 레벨 캐싱 추가

PaperMania/Server.Tests/Application/Player/GetPlayerLevelUseCaseTests.cs

@@ -2,6 +2,7 @@
 using Moq;
 using Server.Api.Dto.Response;
 using Server.Application.Exceptions;
+using Server.Application.Port.Output.Cache;
 using Server.Application.Port.Output.Persistence;
 using Server.Application.Port.Output.StaticData;
 using Server.Application.UseCase.Player;
@@ -15,16 +16,26 @@ public class GetPlayerLevelUseCaseTests
 {
     private readonly Mock<IDataRepository> _repositoryMock = new();
     private readonly Mock<ILevelDefinitionStore> _levelStoreMock = new();
+    private readonly Mock<ICacheAsideService> _cacheMock = new();
 
     private GetPlayerLevelUseCase CreateUseCase() =>
-        new(_repositoryMock.Object, _levelStoreMock.Object);
+        new(_repositoryMock.Object, _levelStoreMock.Object, _cacheMock.Object);
+
+    private void SetupCache(PlayerData? returnValue)
+    {
+        _cacheMock
+            .Setup(x => x.GetOrSetAsync(
+                It.IsAny<string>(),
+                It.IsAny<Func<CancellationToken, Task<PlayerData?>>>(),
+                It.IsAny<TimeSpan>(),
+                It.IsAny<CancellationToken>()))
+            .ReturnsAsync(returnValue);
+    }
 
     [Fact]
     public async Task ExecuteAsync_Should_Throw_When_Player_Not_Found()
     {
-        _repositoryMock
-            .Setup(x => x.FindByUserIdAsync(It.IsAny<int>(), It.IsAny<CancellationToken>()))
-            .ReturnsAsync((PlayerData?)null);
+        SetupCache(null);
 
         var useCase = CreateUseCase();
         var command = new GetPlayerLevelCommand(1);
@@ -40,9 +51,7 @@ public async Task ExecuteAsync_Should_Throw_When_Level_Not_Found()
     {
         var gameData = PlayerData.Create(1, "Player");
 
-        _repositoryMock
-            .Setup(x => x.FindByUserIdAsync(1, It.IsAny<CancellationToken>()))
-            .ReturnsAsync(gameData);
+        SetupCache(gameData);
 
         _levelStoreMock
             .Setup(x => x.GetLevelDefinition(It.IsAny<int>()))
@@ -61,11 +70,9 @@ public async Task ExecuteAsync_Should_Throw_When_Level_Not_Found()
     public async Task ExecuteAsync_Should_Return_Level_Info_When_Success()
     {
         var gameData = PlayerData.Create(1, "Player");
-        var levelDefinition = new LevelDefinition(1,100, 50);
+        var levelDefinition = new LevelDefinition(1, 100, 50);
 
-        _repositoryMock
-            .Setup(x => x.FindByUserIdAsync(1, It.IsAny<CancellationToken>()))
-            .ReturnsAsync(gameData);
+        SetupCache(gameData);
 
         _levelStoreMock
             .Setup(x => x.GetLevelDefinition(1))

PaperMania/Server/Application/UseCase/Player/GetPlayerLevelUseCase.cs

@@ -1,45 +1,56 @@
 using Server.Api.Dto.Response;
 using Server.Application.Exceptions;
 using Server.Application.Port.Input.Player;
+using Server.Application.Port.Output.Cache;
 using Server.Application.Port.Output.Persistence;
 using Server.Application.Port.Output.StaticData;
 using Server.Application.UseCase.Player.Command;
 using Server.Application.UseCase.Player.Result;
+using Server.Infrastructure.Cache;
 
 namespace Server.Application.UseCase.Player;
 
 public class GetPlayerLevelUseCase : IGetPlayerLevelUseCase
 {
     private readonly IDataRepository _repository;
     private readonly ILevelDefinitionStore _store;
+    private readonly ICacheAsideService _cache;
 
     public GetPlayerLevelUseCase(
         IDataRepository repository,
-        ILevelDefinitionStore store
+        ILevelDefinitionStore store,
+        ICacheAsideService cache
         )
     {
         _repository = repository;
         _store = store;
+        _cache = cache;
     }
 
 
     public async Task<GetPlayerLevelResult> ExecuteAsync(GetPlayerLevelCommand request, CancellationToken ct)
     {
-        var data = await _repository.FindByUserIdAsync(request.UserId, ct)
-            ?? throw new RequestException(
+        var player = await _cache.GetOrSetAsync(
+            CacheKey.Profile.ByUserId(request.UserId),
+            async (token) => await _repository.FindByUserIdAsync(request.UserId, token),
+            TimeSpan.FromDays(30),
+            ct
+        );
+
+        if (player == null)
+            throw new RequestException(
                 ErrorStatusCode.NotFound,
-                "PLAYER_NOT_FOUND",
-                new { UserId = request.UserId });
+                "PLAYER_NOT_FOUND");
 
-        var levelDef = _store.GetLevelDefinition(data.Level)
+        var levelDef = _store.GetLevelDefinition(player.Level)
                         ?? throw new RequestException(
                             ErrorStatusCode.NotFound,
                             "LEVEL_NOT_FOUND",
-                            new { Level = data.Level });
+                            new { Level = player.Level });
 
         return new GetPlayerLevelResult(
-            data.Level,
-            data.Exp,
+            player.Level,
+            player.Exp,
             levelDef.MaxExp
         );
     }