App

src/Alma.App/Services/JsonConfigurationFileReader.cs

@@ -0,0 +1,18 @@
+using System.Text.Json;
+
+namespace Alma.Services;
+
+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
+    {
+        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);
+    }
+}