feat: admin product deletion

repositories/products.py

@@ -7,6 +7,35 @@ from db.models import Product
 
 
 class ProductRepository:
+    async def delete_product(self, session: AsyncSession, product_id: int) -> Product | None:
+        product = await self.get_product_by_id(session, product_id)
+        if not product:
+            return None
+
+        await session.delete(product)
+        await session.commit()
+        return product
+
+    async def add_product(
+        self,
+        session: AsyncSession,
+        *,
+        category_id: int | None,
+        name: str,
+        description: str,
+        price: int,
+    ) -> Product:
+        product = Product(
+            category_id=category_id,
+            name=name,
+            description=description,
+            price=price,
+        )
+        session.add(product)
+        await session.commit()
+        await session.refresh(product)
+        return product
+
     async def get_product_by_id(
         self, session: AsyncSession, product_id: int, *, include_hidden: bool = True
     ) -> Product | None: