Initial commit

Infrastructure/Persistence/SettingsRepository.cs

@@ -0,0 +1,43 @@
+using System.Text;
+using System.Text.Json;
+using SharepointToolbox.Web.Core.Models;
+
+namespace SharepointToolbox.Web.Infrastructure.Persistence;
+
+public class SettingsRepository
+{
+    private readonly string _filePath;
+    private readonly SemaphoreSlim _writeLock = new(1, 1);
+
+    public SettingsRepository(string filePath) { _filePath = filePath; }
+
+    public async Task<AppSettings> LoadAsync()
+    {
+        if (!File.Exists(_filePath)) return new AppSettings();
+        try
+        {
+            var json = await File.ReadAllTextAsync(_filePath, Encoding.UTF8);
+            return JsonSerializer.Deserialize<AppSettings>(json,
+                new JsonSerializerOptions { PropertyNameCaseInsensitive = true }) ?? new AppSettings();
+        }
+        catch { return new AppSettings(); }
+    }
+
+    public async Task SaveAsync(AppSettings settings)
+    {
+        await _writeLock.WaitAsync();
+        try
+        {
+            var json = JsonSerializer.Serialize(settings, new JsonSerializerOptions
+            {
+                WriteIndented = true, PropertyNamingPolicy = JsonNamingPolicy.CamelCase
+            });
+            var dir = Path.GetDirectoryName(_filePath);
+            if (!string.IsNullOrEmpty(dir)) Directory.CreateDirectory(dir);
+            var tmp = _filePath + ".tmp";
+            await File.WriteAllTextAsync(tmp, json, Encoding.UTF8);
+            File.Move(tmp, _filePath, overwrite: true);
+        }
+        finally { _writeLock.Release(); }
+    }
+}