Add update functionality for recipes and create edit page

backend/src/recipes/recipes.service.ts

@@ -302,6 +302,40 @@ export class RecipesService {
     return recipe;
   }
 
+  async update(id: number, updateRecipeDto: CreateRecipeDto) {
+    // Först, ta bort gamla ingredienser
+    await this.prisma.recipeIngredient.deleteMany({
+      where: { recipeId: id },
+    });
+
+    // Uppdatera receptet och lägg till nya ingredienser
+    const recipe = await this.prisma.recipe.update({
+      where: { id },
+      data: {
+        name: updateRecipeDto.name,
+        description: updateRecipeDto.description || null,
+        instructions: updateRecipeDto.instructions || null,
+        ingredients: {
+          create: updateRecipeDto.ingredients.map((ingredient) => ({
+            productId: ingredient.productId,
+            quantity: ingredient.quantity.toString(),
+            unit: ingredient.unit,
+            note: ingredient.note || null,
+          })),
+        },
+      },
+      include: {
+        ingredients: {
+          include: {
+            product: true,
+          },
+        },
+      },
+    });
+
+    return recipe;
+  }
+
   async create(createRecipeDto: CreateRecipeDto) {
     const recipe = await this.prisma.recipe.create({
       data: {