baseline: OpenMU upstream b5a0961 (fresh source)

src/Persistence/EntityFramework/GameConfigurationContext.cs

@@ -0,0 +1,32 @@
+// <copyright file="GameConfigurationContext.cs" company="MUnique">
+// Licensed under the MIT License. See LICENSE file in the project root for full license information.
+// </copyright>
+
+namespace MUnique.OpenMU.Persistence.EntityFramework;
+
+using System.Threading;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+using MUnique.OpenMU.Persistence.EntityFramework.Model;
+
+/// <summary>
+/// Persistence context which is used to access the <see cref="GameConfiguration"/>.
+/// </summary>
+internal class GameConfigurationContext : CachingEntityFrameworkContext, IConfigurationContext
+{
+    /// <summary>
+    /// Initializes a new instance of the <see cref="GameConfigurationContext"/> class.
+    /// </summary>
+    /// <param name="repositoryProvider">The repository provider.</param>
+    /// <param name="logger">The logger.</param>
+    public GameConfigurationContext(IContextAwareRepositoryProvider repositoryProvider, ILogger<GameConfigurationContext> logger)
+        : base(new ConfigurationContext(), repositoryProvider, null, logger)
+    {
+    }
+
+    /// <inheritdoc />
+    public async ValueTask<Guid?> GetDefaultGameConfigurationIdAsync(CancellationToken cancellationToken)
+    {
+        return await this.Context.Set<GameConfiguration>().Select(g => g.Id).FirstOrDefaultAsync(cancellationToken).ConfigureAwait(false);
+    }
+}