add sdk

notifcation dongif setttings - save to DB

README.md

@@ -99,20 +99,6 @@ to the database, and dispatches Discord notifications.
 Firebase, communicates with the API via fetch, and renders the address/alert
 management UI.
 
-## TODO
-
-- [ ] Switch frontend package manager from npm to yarn (per repo policy)
-- [ ] Rename `go.mod` module path from `github.com/kjannette/koin-ping` to
-      `sneak.berlin/go/koin-ping` (per repo policy)
-- [ ] Move database migrations to `internal/db/migrations/` and embed them in
-      the binary
-- [ ] Pin all Docker base images by `@sha256` in Dockerfile
-- [ ] Install `golangci-lint` locally and pass `make lint`
-- [ ] Add vitest unit tests for the React frontend
-- [ ] Add a `make db-reset` / `make migrate` target for schema management
-- [ ] Set HTTP server read/write timeouts (currently unbounded)
-- [ ] Replace `log.Printf` calls with structured `log/slog`
-
 ## License
 
 MIT. See [LICENSE](LICENSE).

backend-go/cmd/api/main.go

@@ -18,9 +18,9 @@ import (
 )
 
 const (
-	// serverReadTimeoutSeconds is the maximum duration to read a request.
+	// max duration to read a request.
 	serverReadTimeoutSeconds = 5
-	// serverWriteTimeoutSeconds is the maximum duration to write a response.
+	// maxiduration to write a response.
 	serverWriteTimeoutSeconds = 10
 )
 
@@ -74,7 +74,7 @@ func main() {
 	mux.Handle("DELETE "+b+"/addresses/{addressId}",
 		middleware.Authenticate(http.HandlerFunc(addressHandler.Remove)))
 
-	// Authenticated routes — alert rules
+	// Authenticated routes for alert rules
 	mux.Handle("POST "+b+"/addresses/{addressId}/alerts",
 		middleware.Authenticate(http.HandlerFunc(alertRuleHandler.Create)))
 	mux.Handle("GET "+b+"/addresses/{addressId}/alerts",

backend-go/go.mod

@@ -42,6 +42,7 @@ require (
 	github.com/jackc/puddle/v2 v2.2.2 // indirect
 	github.com/joho/godotenv v1.5.1 // indirect
 	github.com/planetscale/vtprotobuf v0.6.1-0.20240319094008-0393e58bdf10 // indirect
+	github.com/resend/resend-go/v3 v3.1.1 // indirect
 	github.com/spiffe/go-spiffe/v2 v2.6.0 // indirect
 	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
 	go.opentelemetry.io/contrib/detectors/gcp v1.39.0 // indirect

backend-go/go.sum

@@ -92,6 +92,8 @@ github.com/planetscale/vtprotobuf v0.6.1-0.20240319094008-0393e58bdf10/go.mod h1
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRIccs7FGNTlIRMkT8wgtp5eCXdBlqhYGL6U=
 github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/resend/resend-go/v3 v3.1.1 h1:Uwpf/tZU+O/r/3nMWE6zUAMIG9dX/vTBS3wlQzYJKSw=
+github.com/resend/resend-go/v3 v3.1.1/go.mod h1:iI7VA0NoGjWvsNii5iNC5Dy0llsI3HncXPejhniYzwE=
 github.com/spiffe/go-spiffe/v2 v2.6.0 h1:l+DolpxNWYgruGQVV0xsfeya3CsC7m8iBzDnMpsbLuo=
 github.com/spiffe/go-spiffe/v2 v2.6.0/go.mod h1:gm2SeUoMZEtpnzPNs2Csc0D/gX33k1xIx7lEzqblHEs=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=

backend-go/internal/models/notification_config.go

@@ -45,11 +45,11 @@ func (m *NotificationConfigModel) UpsertConfig(ctx context.Context, userID strin
 		 VALUES ($1, $2, $3, $4, $5, $6, $7, NOW())
 		 ON CONFLICT (user_id)
 		 DO UPDATE SET
-		   discord_webhook_url = COALESCE($2, user_notification_configs.discord_webhook_url),
-		   telegram_chat_id = COALESCE($3, user_notification_configs.telegram_chat_id),
-		   telegram_bot_token = COALESCE($4, user_notification_configs.telegram_bot_token),
-		   email = COALESCE($5, user_notification_configs.email),
-		   slack_webhook_url = COALESCE($6, user_notification_configs.slack_webhook_url),
+		   discord_webhook_url = $2,
+		   telegram_chat_id = $3,
+		   telegram_bot_token = $4,
+		   email = $5,
+		   slack_webhook_url = $6,
 		   notification_enabled = $7,
 		   updated_at = NOW()
 		 RETURNING user_id, discord_webhook_url, telegram_chat_id, telegram_bot_token,

frontend/src/pages/Alerts.jsx

@@ -65,6 +65,7 @@ export default function Alerts() {
     const [testingChannels, setTestingChannels] = useState(false);
     const [settingUpEmail, setSettingUpEmail] = useState(false);
     const [sendingDigest, setSendingDigest] = useState(false);
+    const [hasExistingConfig, setHasExistingConfig] = useState(false);
 
     useEffect(() => {
         async function fetchData() {
@@ -86,6 +87,14 @@ export default function Alerts() {
                 setTelegramChatId(configData.telegram_chat_id || "");
                 setEmail(configData.email || "");
                 setSlackWebhookUrl(configData.slack_webhook_url || "");
+
+                const hasSaved =
+                    !!configData.discord_webhook_url ||
+                    !!configData.telegram_bot_token ||
+                    !!configData.telegram_chat_id ||
+                    !!configData.email ||
+                    !!configData.slack_webhook_url;
+                setHasExistingConfig(hasSaved);
             } catch (err) {
                 setError(err.message);
                 console.error("Failed to fetch data:", err);
@@ -155,6 +164,13 @@ export default function Alerts() {
     }
 
     async function handleSaveNotificationConfig() {
+        if (hasExistingConfig) {
+            const confirmed = window.confirm(
+                "This will overwrite your previously saved notification settings. Continue?",
+            );
+            if (!confirmed) return;
+        }
+
         try {
             setNotificationLoading(true);
             setNotificationError(null);
@@ -170,6 +186,7 @@ export default function Alerts() {
             };
 
             await updateNotificationConfig(config);
+            setHasExistingConfig(true);
             setNotificationSuccess("Notification settings saved!");
             setTimeout(() => setNotificationSuccess(null), 3000);
         } catch (err) {