Revert "firebase integration"

This reverts commit dacc9ce2bc.

.agents/TODO.md

@@ -28,12 +28,6 @@ Dieses Dokument enthält den aktuellen Entwicklungsstand und detaillierte Aufgab
   - Touch-Swipe-Karussell direkt auf index.php (unter Landing-Page)
   - Filteralgorithmus nach Benutzer-Ernährungszielen
   - Mikro-Animationen & Quick-Save Funktion
-- [/] **Phase 6: Firebase Firestore Datenbank-Migration & Seeding**
-  - Firebase CLI-Login & Projekt-Initialisierung
-  - .env-Konfiguration mit Firebase App Credentials
-  - Client-seitiger "Seed Firestore"-Button in admin.php
-  - Firestore REST API Integration in helpers.php
-  - Echtzeit-Zwei-Wege-Sync bei Rezeptänderungen in admin.php
 
 ---
 
@@ -144,29 +138,6 @@ Ein hochgradig interaktives, touch-freundliches Karussell direkt auf der Startse
 
 ---
 
-### 🔥 Phase 6: Firebase Firestore Datenbank-Migration & Seeding
-Migration des lokalen JSON-Flachdateispeichers auf eine skalierbare, cloudbasierte Firestore-Struktur.
-
-- [/] **Firebase-Projekt & CLI-Setup**
-  - [x] Firebase-Verzeichnis-Umgebung initialisieren und anbinden
-  - [/] Firebase CLI Login durchführen und aktiven Account verknüpfen
-  - [ ] Firebase Project & Web App ermitteln oder neu anlegen
-  - [ ] Lokale `.env`-Konfiguration mit Firebase SDK Parametern befüllen
-- [ ] **Client-seitiges Daten-Seeding**
-  - [ ] "Seed Firestore"-Aktion im Admin-Bereich (`admin.php`) einbauen
-  - [ ] Batch-Dokumentenupload der `recipes.json`-Einträge in die Firestore Collection `recipes` über JS SDK
-  - [ ] Firestore Security Rules für den öffentlichen Lesezugriff anpassen
-- [ ] **Firestore Server-seitiger Abruf (PHP REST API)**
-  - [ ] Firestore REST API Parser-Helfer in `helpers.php` implementieren (Transformation von Firestore Key-Maps in Standard-Arrays)
-  - [ ] `load_recipes()` auf REST API GET `/recipes` umstellen
-  - [ ] Neue Funktion `load_recipe_by_slug($slug)` für gezielten Einzelabruf implementieren und in `recipe.php` integrieren
-- [ ] **Zwei-Wege-Echtzeit-Synchronisierung (Admin)**
-  - [ ] `save_recipes()` so anpassen, dass lokales JSON als Fallback-Backup erhalten bleibt
-  - [ ] Client-seitigen Trigger nach erfolgreichem PHP-Speichern in `admin.php` ausführen, um Änderungen sofort in Firestore zu spiegeln
-  - [ ] Funktionstest: Hinzufügen, Editieren und Löschen von Rezepten über die Admin-Konsole verifizieren
-
----
-
 ## 📈 Status-Legende
 - `[ ]` Noch nicht begonnen
 - `[/]` In Bearbeitung

.agents/brain.md

@@ -32,10 +32,6 @@ This document summarizes the architectural knowledge, conventions, and learnings
 ## 5. Completed Milestones
 - **Phase 3 (Nutrition):** Implemented. Recipes now store `calories`, `protein`, `carbs`, and `fat`. Admin panel handles inputs, and the UI displays them beautifully.
 - **Phase 4 (Interactive Cooking Mode):** Implemented. Recipes now support step-by-step looping background videos and interactive timers (`step_videos`, `step_timers`). The UI utilizes a fullscreen overlay slider with Vanilla JS logic.
-- **Phase 6 (Firestore Database Migration):** Migrated recipes database from `data/recipes.json` to Firebase Firestore.
-  - *Zero-Dependency REST API Read:* Server-side read requests in `helpers.php` use native PHP cURL to query the Firestore REST API `/documents/recipes`. Complex Firestore nested type maps are dynamically parsed into clean standard associative arrays using custom decoders.
-  - *Dynamic Local Fallback:* In case of rate limits, network failures, or missing `.env` config, all lookup functions automatically fail back to the local `recipes.json` flat-file, guaranteeing 100% database availability and site resilience.
-  - *Browser-Driven Seeding & Auto-Sync:* Admin seeding and real-time updates are executed client-side in `admin.php` via the authenticated Firebase Client SDK, keeping the local file and Cloud Firestore perfectly in sync without server-side OAuth2 keys.
 
 ## 6. Next Steps
-According to `TODO.md`, the next major feature block is completing the database seeding (by clicking "Seed Firestore" on `admin.php` in the browser) and verifying all recipe updates reflect in real-time. Afterwards, we can proceed to **Phase 5 (PWA & Offline Support)**.
+According to `TODO.md`, the next major feature block is **Phase 5 (PWA & Offline Support)**, which involves service workers, manifest files, and enabling the app to be installable on mobile devices.

.firebaserc

@@ -1,5 +0,0 @@
-{
-  "projects": {
-    "default": "flixcooks"
-  }
-}

admin.php

@@ -367,18 +367,6 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST' && ($_POST['action'] ?? '') === 'delet
     .list-item { padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,0.08); display: flex; justify-content: space-between; align-items: center; }
     .pill { background: rgba(255,255,255,0.06); color: var(--ink); }
   </style>
-  <!-- Firebase v10 compat SDKs -->
-  <script src="https://www.gstatic.com/firebasejs/10.8.0/firebase-app-compat.js"></script>
-  <script src="https://www.gstatic.com/firebasejs/10.8.0/firebase-auth-compat.js"></script>
-  <script src="https://www.gstatic.com/firebasejs/10.8.0/firebase-firestore-compat.js"></script>
-  <script>
-    (function() {
-      var config = <?php echo json_encode(get_firebase_config()); ?>;
-      firebase.initializeApp(config);
-      window.auth = firebase.auth();
-      window.db = firebase.firestore();
-    })();
-  </script>
 </head>
 <body>
   <div class="admin-header">
@@ -388,9 +376,6 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST' && ($_POST['action'] ?? '') === 'delet
         <a href="/admin.php" class="<?php echo $view === 'recipes' ? 'active' : ''; ?>">Recipes</a>
         <a href="/admin.php?view=settings" class="<?php echo $view === 'settings' ? 'active' : ''; ?>">Site settings</a>
       </div>
-      <?php if ($view === 'recipes' && !$editing): ?>
-        <button id="btn-seed-firestore" class="button" style="background: var(--accent-gold, #c5a880); color: #000; font-weight: 700; border: none; padding: 10px 14px; border-radius: 10px; cursor: pointer;">Seed Firestore</button>
-      <?php endif; ?>
       <a class="button" href="/index.php" style="padding:10px 14px;">View site</a>
       <?php if ($editing): ?>
         <a class="button" href="/admin.php" style="padding:10px 14px;">Back</a>
@@ -653,66 +638,5 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST' && ($_POST['action'] ?? '') === 'delet
       <button type="submit" class="button" style="width: fit-content;"><?php echo $editing ? 'Save changes' : 'Save recipe'; ?></button>
     </form>
   <?php endif; ?>
-
-  <script>
-    // Firestore Seeder Logic
-    document.addEventListener('DOMContentLoaded', () => {
-      const btnSeed = document.getElementById('btn-seed-firestore');
-      if (btnSeed) {
-        btnSeed.addEventListener('click', async () => {
-          if (!confirm('Bist du sicher, dass du alle Rezepte nach Firestore importieren möchtest? Bestehende Dokumente mit identischem Slug werden überschrieben.')) return;
-          btnSeed.disabled = true;
-          btnSeed.innerText = 'Seeding...';
-          try {
-            const recipes = <?php echo json_encode($allRecipes); ?>;
-            let count = 0;
-            for (const recipe of recipes) {
-              await window.db.collection('recipes').doc(recipe.slug).set(recipe);
-              console.log('Seeded to Firestore:', recipe.slug);
-              count++;
-            }
-            alert(`Erfolgreich ${count} Rezepte nach Firestore migriert!`);
-          } catch (err) {
-            console.error('Seeding Fehler:', err);
-            alert('Fehler beim Seeding: ' + err.message);
-          } finally {
-            btnSeed.disabled = false;
-            btnSeed.innerText = 'Seed Firestore';
-          }
-        });
-      }
-    });
-  </script>
-
-  <!-- Auto-Sync after PHP Save -->
-  <?php if (isset($record) && str_contains($message ?? '', 'Saved')): ?>
-    <script>
-      document.addEventListener('DOMContentLoaded', async () => {
-        const recipe = <?php echo json_encode($record); ?>;
-        try {
-          await window.db.collection('recipes').doc(recipe.slug).set(recipe);
-          console.log('Successfully synced saved recipe to Firestore:', recipe.slug);
-        } catch (err) {
-          console.error('Error syncing saved recipe to Firestore:', err);
-        }
-      });
-    </script>
-  <?php endif; ?>
-
-  <!-- Auto-Sync after PHP Delete -->
-  <?php if (isset($slugDel) && ($message ?? '') === 'Recipe deleted.'): ?>
-    <script>
-      document.addEventListener('DOMContentLoaded', async () => {
-        const slugDel = <?php echo json_encode($slugDel); ?>;
-        try {
-          await window.db.collection('recipes').doc(slugDel).delete();
-          console.log('Successfully deleted recipe from Firestore:', slugDel);
-        } catch (err) {
-          console.error('Error deleting recipe from Firestore:', err);
-        }
-      });
-    </script>
-  <?php endif; ?>
-
 </body>
 </html>

helpers.php

@@ -7,46 +7,7 @@ if (session_status() === PHP_SESSION_NONE) {
 
 require_once __DIR__ . '/config.php';
 
-function decode_firestore_value($value) {
+function load_recipes(): array {
-    if (!is_array($value)) return $value;
-    if (isset($value['stringValue'])) return $value['stringValue'];
-    if (isset($value['integerValue'])) return (int)$value['integerValue'];
-    if (isset($value['doubleValue'])) return (float)$value['doubleValue'];
-    if (isset($value['booleanValue'])) return (bool)$value['booleanValue'];
-    if (isset($value['nullValue'])) return null;
-    if (isset($value['arrayValue']['values'])) {
-        return array_map('decode_firestore_value', $value['arrayValue']['values']);
-    }
-    if (isset($value['mapValue']['fields'])) {
-        return array_map('decode_firestore_value', $value['mapValue']['fields']);
-    }
-    return $value;
-}
-
-function decode_firestore_document(array $doc): array {
-    if (!isset($doc['fields'])) return [];
-    return array_map('decode_firestore_value', $doc['fields']);
-}
-
-function firestore_get(string $url): ?array {
-    $ch = curl_init();
-    curl_setopt($ch, CURLOPT_URL, $url);
-    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
-    curl_setopt($ch, CURLOPT_TIMEOUT, 10);
-    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
-    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
-    $response = curl_exec($ch);
-    $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
-    curl_close($ch);
-
-    if ($httpCode !== 200 || !$response) {
-        return null;
-    }
-
-    return json_decode($response, true);
-}
-
-function load_recipes_local(): array {
     $path = __DIR__ . '/data/recipes.json';
     if (!file_exists($path)) {
         return [];
@@ -67,54 +28,6 @@ function load_recipes_local(): array {
     return $data;
 }
 
-function load_recipes(): array {
-    $config = get_firebase_config();
-    $projectId = $config['projectId'] ?? '';
-    if (empty($projectId)) {
-        return load_recipes_local();
-    }
-
-    $url = "https://firestore.googleapis.com/v1/projects/{$projectId}/databases/(default)/documents/recipes?pageSize=100";
-    $res = firestore_get($url);
-    if (!$res || !isset($res['documents'])) {
-        return load_recipes_local();
-    }
-
-    $recipes = [];
-    foreach ($res['documents'] as $doc) {
-        $decoded = decode_firestore_document($doc);
-        if (!empty($decoded)) {
-            if (!empty($decoded['hero']) && is_string($decoded['hero'])) {
-                $decoded['hero'] = normalize_asset_path($decoded['hero']);
-            }
-            $recipes[] = $decoded;
-        }
-    }
-
-    return $recipes;
-}
-
-function load_recipe_by_slug(string $slug): ?array {
-    $config = get_firebase_config();
-    $projectId = $config['projectId'] ?? '';
-    if (empty($projectId)) {
-        return find_recipe_by_slug(load_recipes_local(), $slug);
-    }
-
-    $url = "https://firestore.googleapis.com/v1/projects/{$projectId}/databases/(default)/documents/recipes/" . urlencode($slug);
-    $res = firestore_get($url);
-    if (!$res || isset($res['error'])) {
-        return find_recipe_by_slug(load_recipes_local(), $slug);
-    }
-
-    $decoded = decode_firestore_document($res);
-    if (!empty($decoded['hero']) && is_string($decoded['hero'])) {
-        $decoded['hero'] = normalize_asset_path($decoded['hero']);
-    }
-
-    return $decoded;
-}
-
 function save_recipes(array $recipes): bool {
     $path = __DIR__ . '/data/recipes.json';
     $json = json_encode($recipes, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES);

recipe.php

@@ -48,7 +48,7 @@ $t = $copy[$lang];
 
 $allRecipes       = load_recipes();
 $slug             = isset($_GET['slug']) ? trim($_GET['slug']) : '';
-$recipeRaw        = $slug ? load_recipe_by_slug($slug) : null;
+$recipeRaw        = $slug ? find_recipe_by_slug($allRecipes, $slug) : null;
 $recipe           = $recipeRaw ? localize_recipe($recipeRaw, $lang) : null;
 $allRecipesLocal  = localize_recipes($allRecipes, $lang);