add church profile.

API/ROLAC.API/Services/Notifications/NotificationSettingsService.cs

@@ -0,0 +1,98 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Options;
+using ROLAC.API.Data;
+
+namespace ROLAC.API.Services.Notifications;
+
+/// <summary>
+/// Supplies the current SMTP/Line settings from the <c>NotificationSetting</c> singleton row,
+/// caching a snapshot in memory so send paths don't hit the DB on every message. Registered as a
+/// singleton; the Settings UI calls <see cref="Reload"/> after an edit so changes take effect
+/// without restarting the API. Falls back to the "Smtp"/"Line" appsettings sections if the row
+/// has not been seeded yet.
+/// </summary>
+public interface INotificationSettingsService
+{
+    SmtpOptions GetSmtp();
+    LineOptions GetLine();
+    void Reload();
+}
+
+public sealed class NotificationSettingsService : INotificationSettingsService
+{
+    private readonly IServiceScopeFactory _scopeFactory;
+    private readonly IOptions<SmtpOptions> _smtpFallback;
+    private readonly IOptions<LineOptions> _lineFallback;
+    private readonly object _gate = new();
+
+    private SmtpOptions? _smtp;
+    private LineOptions? _line;
+
+    public NotificationSettingsService(
+        IServiceScopeFactory scopeFactory,
+        IOptions<SmtpOptions> smtpFallback,
+        IOptions<LineOptions> lineFallback)
+    {
+        _scopeFactory = scopeFactory;
+        _smtpFallback = smtpFallback;
+        _lineFallback = lineFallback;
+    }
+
+    public SmtpOptions GetSmtp()
+    {
+        EnsureLoaded();
+        return _smtp!;
+    }
+
+    public LineOptions GetLine()
+    {
+        EnsureLoaded();
+        return _line!;
+    }
+
+    public void Reload()
+    {
+        lock (_gate)
+        {
+            _smtp = null;
+            _line = null;
+        }
+    }
+
+    private void EnsureLoaded()
+    {
+        lock (_gate)
+        {
+            if (_smtp is not null && _line is not null)
+                return;
+
+            using var scope = _scopeFactory.CreateScope();
+            var db = scope.ServiceProvider.GetRequiredService<AppDbContext>();
+            var row = db.NotificationSettings.AsNoTracking().OrderBy(s => s.Id).FirstOrDefault();
+
+            if (row is null)
+            {
+                // Not seeded yet — use the appsettings values so sends still work.
+                _smtp = _smtpFallback.Value;
+                _line = _lineFallback.Value;
+                return;
+            }
+
+            _smtp = new SmtpOptions
+            {
+                Host        = row.SmtpHost,
+                Port        = row.SmtpPort,
+                UseSsl      = row.SmtpUseSsl,
+                User        = row.SmtpUser,
+                Password    = row.SmtpPassword,
+                FromAddress = row.FromAddress,
+                FromName    = row.FromName,
+            };
+            _line = new LineOptions
+            {
+                ChannelAccessToken = row.LineChannelAccessToken,
+                ChannelSecret      = row.LineChannelSecret,
+            };
+        }
+    }
+}