add feature to delete recipes when logged in

backend/routes/recipes.js

@@ -177,15 +177,62 @@ router.put('/:id', async (req, res) => {
   }
 });
 
-// Delete recipe
-router.delete('/:id', async (req, res) => {
+// Delete recipe (protected route)
+router.delete('/:id', authenticateToken, async (req, res) => {
   try {
-    const recipe = await Recipe.findByIdAndDelete(req.params.id);
+    const recipeId = req.params.id;
+    
+    // Find the recipe first to check ownership
+    const recipe = await Recipe.findById(recipeId);
     if (!recipe) {
       return res.status(404).json({ error: 'Recipe not found' });
     }
-    res.json({ message: 'Recipe deleted successfully' });
+    
+    // Check if user owns the recipe (only recipe creator can delete)
+    if (recipe.createdBy.toString() !== req.userId) {
+      return res.status(403).json({ error: 'You can only delete recipes you created' });
+    }
+    
+    // Delete the recipe
+    await Recipe.findByIdAndDelete(recipeId);
+    
+    // Remove recipe from all user selections
+    const UserSelection = require('../models/UserSelection');
+    await UserSelection.updateMany(
+      { 'selectedRecipes.recipeId': recipeId },
+      { 
+        $pull: { 
+          selectedRecipes: { recipeId: recipeId } 
+        }
+      }
+    );
+    
+    // Also clean up aggregated ingredients that reference this recipe
+    await UserSelection.updateMany(
+      { 'aggregatedIngredients.recipes.recipeId': recipeId },
+      { 
+        $pull: { 
+          'aggregatedIngredients.$[].recipes': { recipeId: recipeId } 
+        }
+      }
+    );
+    
+    // Remove empty aggregated ingredients (those with no recipes left)
+    await UserSelection.updateMany(
+      {},
+      { 
+        $pull: { 
+          aggregatedIngredients: { recipes: { $size: 0 } } 
+        }
+      }
+    );
+    
+    res.json({ 
+      message: 'Recipe deleted successfully and removed from all user menus',
+      deletedRecipeId: recipeId
+    });
   } catch (error) {
+    console.error('Error deleting recipe:', error);
     res.status(500).json({ error: error.message });
   }
 });