Basic push notification system for service alerts

Co-authored-by: Copilot <copilot@github.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/src/Enmarcha.Backend/Configuration/AppConfiguration.cs b/src/Enmarcha.Backend/Configuration/AppConfiguration.cs
index 8c6e411..ca2425b 100644
--- a/src/Enmarcha.Backend/Configuration/AppConfiguration.cs
+++ b/src/Enmarcha.Backend/Configuration/AppConfiguration.cs
@@ -7,6 +7,7 @@ public class AppConfiguration
     public string NominatimBaseUrl { get; set; } = "https://nominatim.openstreetmap.org";
     public string[] OtpFeeds { get; set; } = [];
     public OpenTelemetryConfiguration? OpenTelemetry { get; set; }
+    public VapidConfiguration? Vapid { get; set; }
 }
 
 public class OpenTelemetryConfiguration
@@ -14,3 +15,22 @@ public class OpenTelemetryConfiguration
     public string? Endpoint { get; set; }
     public string? Headers { get; set; }
 }
+
+public class VapidConfiguration
+{
+    /// <summary>
+    /// VAPID subject — typically "mailto:admin@yourdomain.com" or a URL.
+    /// </summary>
+    public required string Subject { get; set; }
+
+    /// <summary>
+    /// Base64url-encoded VAPID public key. Safe to expose to browsers.
+    /// </summary>
+    public required string PublicKey { get; set; }
+
+    /// <summary>
+    /// Base64url-encoded VAPID private key. Store in user secrets or environment variables only.
+    /// Generate a key pair with: VapidHelper.GenerateVapidKeys() from the WebPush NuGet package.
+    /// </summary>
+    public required string PrivateKey { get; set; }
+}