0.1.5

LanMontainDesktop/Services/AppSettingsService.cs

@@ -0,0 +1,62 @@
+using System;
+using System.IO;
+using System.Text.Json;
+using LanMontainDesktop.Models;
+
+namespace LanMontainDesktop.Services;
+
+public sealed class AppSettingsService
+{
+    private static readonly JsonSerializerOptions SerializerOptions = new()
+    {
+        WriteIndented = true
+    };
+
+    private readonly string _settingsPath;
+
+    public AppSettingsService()
+    {
+        var appData = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
+        var settingsDirectory = Path.Combine(appData, "LanMontainDesktop");
+        _settingsPath = Path.Combine(settingsDirectory, "settings.json");
+    }
+
+    public AppSettingsSnapshot Load()
+    {
+        try
+        {
+            if (!File.Exists(_settingsPath))
+            {
+                return new AppSettingsSnapshot();
+            }
+
+            var json = File.ReadAllText(_settingsPath);
+            var snapshot = JsonSerializer.Deserialize<AppSettingsSnapshot>(json, SerializerOptions);
+            return snapshot ?? new AppSettingsSnapshot();
+        }
+        catch
+        {
+            return new AppSettingsSnapshot();
+        }
+    }
+
+    public void Save(AppSettingsSnapshot snapshot)
+    {
+        try
+        {
+            var directory = Path.GetDirectoryName(_settingsPath);
+            if (!string.IsNullOrWhiteSpace(directory))
+            {
+                Directory.CreateDirectory(directory);
+            }
+
+            var json = JsonSerializer.Serialize(snapshot, SerializerOptions);
+            File.WriteAllText(_settingsPath, json);
+        }
+        catch
+        {
+            // Swallow persistence errors to keep UI interactions uninterrupted.
+        }
+    }
+}
+