Add Json source generation

src/Alma.App/Services/JsonConfigurationFileReader.cs

@@ -1,4 +1,5 @@
 using System.Text.Json;
+using System.Text.Json.Serialization;
 
 namespace Alma.Services;
 
@@ -6,13 +7,16 @@ public class JsonConfigurationFileReader : IConfigurationFileReader
 {
     private static readonly JsonSerializerOptions DefaultOptions = new(JsonSerializerDefaults.Web);
 
-    public async Task<(T? Result, string? FileName)> DeserializeAsync<T>(string fileNameWithoutExtension, string? extension) where T : class
+    public async Task<(T? Result, string? FileName)> DeserializeAsync<T>(
+        string fileNameWithoutExtension,
+        Func<JsonSerializerOptions, JsonSerializerContext> contextGenerator,
+        string? extension) where T : class
     {
         extension ??= "json";
         var fileName = fileNameWithoutExtension + "." + extension;
         if (!File.Exists(fileName)) return (null, null);
 
         await using FileStream openStream = File.OpenRead(fileName);
-        return (await JsonSerializer.DeserializeAsync<T>(openStream, DefaultOptions), fileName);
+        return ((T?)await JsonSerializer.DeserializeAsync(openStream, typeof(T), contextGenerator(DefaultOptions)), fileName);
     }
 }