From cac0c3e1b58fe66d4f82c9a397fb43633df5a363 Mon Sep 17 00:00:00 2001
From: PianoNic <79938743+Pianonic@users.noreply.github.com>
Date: Fri, 6 Nov 2026 15:06:10 +0100
Subject: [PATCH 1/3] Add web app title, description, noindex and robots.txt

---
 src/Schuly.Frontend/public/robots.txt | 5 +++++
 src/Schuly.Frontend/src/index.html    | 4 +++-
 2 files changed, 8 insertions(+), 1 deletion(-)
 create mode 100644 src/Schuly.Frontend/public/robots.txt

diff --git a/src/Schuly.Frontend/public/robots.txt b/src/Schuly.Frontend/public/robots.txt
new file mode 100644
index 0000000..3538f13
--- /dev/null
+++ b/src/Schuly.Frontend/public/robots.txt
@@ -0,0 +1,5 @@
+User-agent: *
+Allow: /login
+Disallow: /
+
+Sitemap: https://schuly.dev/sitemap.xml
diff --git a/src/Schuly.Frontend/src/index.html b/src/Schuly.Frontend/src/index.html
index a026500..a9cb76c 100644
--- a/src/Schuly.Frontend/src/index.html
+++ b/src/Schuly.Frontend/src/index.html
@@ -2,7 +2,9 @@
 <html lang="de">
 <head>
   <meta charset="utf-8">
-  <title>Schuly</title>
+  <title>Schuly – Web-App</title>
+  <meta name="description" content="Melde dich bei Schuly an: Noten, Absenzen, Stundenplan und mehr im Browser.">
+  <meta name="robots" content="noindex">
   <base href="/">
   <meta name="viewport" content="width=device-width, initial-scale=1">
   <meta name="color-scheme" content="light dark">

From 61c07be2a9ae5b22e4cee5609858ddb96258366a Mon Sep 17 00:00:00 2001
From: PianoNic <79938743+Pianonic@users.noreply.github.com>
Date: Fri, 6 Nov 2026 15:18:42 +0100
Subject: [PATCH 2/3] Let search engines index the web app's public pages

---
 src/Schuly.Frontend/public/robots.txt | 7 +++++--
 src/Schuly.Frontend/src/index.html    | 1 -
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/Schuly.Frontend/public/robots.txt b/src/Schuly.Frontend/public/robots.txt
index 3538f13..daa7485 100644
--- a/src/Schuly.Frontend/public/robots.txt
+++ b/src/Schuly.Frontend/public/robots.txt
@@ -1,5 +1,8 @@
 User-agent: *
-Allow: /login
-Disallow: /
+Allow: /
+Disallow: /api/
+Disallow: /auth/
+Disallow: /mcp
+Disallow: /connect/
 
 Sitemap: https://schuly.dev/sitemap.xml
diff --git a/src/Schuly.Frontend/src/index.html b/src/Schuly.Frontend/src/index.html
index a9cb76c..c0b559b 100644
--- a/src/Schuly.Frontend/src/index.html
+++ b/src/Schuly.Frontend/src/index.html
@@ -4,7 +4,6 @@
   <meta charset="utf-8">
   <title>Schuly – Web-App</title>
   <meta name="description" content="Melde dich bei Schuly an: Noten, Absenzen, Stundenplan und mehr im Browser.">
-  <meta name="robots" content="noindex">
   <base href="/">
   <meta name="viewport" content="width=device-width, initial-scale=1">
   <meta name="color-scheme" content="light dark">

From 1f65d555ce15d49d3bbef60e202527f65ceab4d9 Mon Sep 17 00:00:00 2001
From: PianoNic <79938743+Pianonic@users.noreply.github.com>
Date: Fri, 6 Nov 2026 15:20:47 +0100
Subject: [PATCH 3/3] Keep pages behind the login out of search

---
 src/Schuly.Frontend/public/robots.txt |  8 +++-----
 src/Schuly.Frontend/src/app/app.ts    | 19 ++++++++++++++++---
 2 files changed, 19 insertions(+), 8 deletions(-)

diff --git a/src/Schuly.Frontend/public/robots.txt b/src/Schuly.Frontend/public/robots.txt
index daa7485..b971124 100644
--- a/src/Schuly.Frontend/public/robots.txt
+++ b/src/Schuly.Frontend/public/robots.txt
@@ -1,8 +1,6 @@
 User-agent: *
-Allow: /
-Disallow: /api/
-Disallow: /auth/
-Disallow: /mcp
-Disallow: /connect/
+Allow: /login
+Allow: /register
+Disallow: /
 
 Sitemap: https://schuly.dev/sitemap.xml
diff --git a/src/Schuly.Frontend/src/app/app.ts b/src/Schuly.Frontend/src/app/app.ts
index 9c4b330..c709d39 100644
--- a/src/Schuly.Frontend/src/app/app.ts
+++ b/src/Schuly.Frontend/src/app/app.ts
@@ -1,7 +1,11 @@
-import { Component } from '@angular/core';
-import { RouterOutlet } from '@angular/router';
+import { Component, inject } from '@angular/core';
+import { Meta } from '@angular/platform-browser';
+import { NavigationEnd, Router, RouterOutlet } from '@angular/router';
 import { HlmToasterImports } from '@spartan-ng/helm/sonner';
 
+// Only the sign-in and register pages may show up in search; everything else is behind a login or a one-off link.
+const INDEXABLE = new Set(['/login', '/register']);
+
 @Component({
   selector: 'app-root',
   imports: [RouterOutlet, HlmToasterImports],
@@ -10,4 +14,13 @@ import { HlmToasterImports } from '@spartan-ng/helm/sonner';
     <hlm-toaster />
   `,
 })
-export class App {}
+export class App {
+  constructor() {
+    const meta = inject(Meta);
+    inject(Router).events.subscribe((e) => {
+      if (!(e instanceof NavigationEnd)) return;
+      const path = e.urlAfterRedirects.split(/[?#]/)[0];
+      meta.updateTag({ name: 'robots', content: INDEXABLE.has(path) ? 'index, follow' : 'noindex, nofollow' });
+    });
+  }
+}