Product rendering, cart functionality

misc/kb/client.py

@@ -64,6 +64,7 @@ def render_category(
 def render_products(
     products: list[Product],
     *,
+    parent_id: int,
     cat_id: int,
     page: int = 0,
     show_prev: Optional[bool] = False,
@@ -97,10 +98,50 @@ def render_products(
             [
                 InlineKeyboardButton(
                     text="⬅️ Назад",
-                    callback_data=f"cat:{cat_id}",
+                    callback_data=f"cat:{parent_id}",
                 )
             ]
         ]
         + btns
         + [nav]
     ).as_markup()
+
+
+def render_product_interactions(
+    *, product_id: int, category_id: int, show_cart: bool = False, cart_amount: int = 0
+) -> InlineKeyboardMarkup:
+    btns: list[list[InlineKeyboardButton]] = []
+
+    if show_cart:
+        btns.append(
+            [
+                InlineKeyboardButton(
+                    text="➖", callback_data=f"cart_action:remove:{product_id}"
+                ),
+                InlineKeyboardButton(text=f"🛒 {cart_amount}", callback_data="..."),
+                InlineKeyboardButton(
+                    text="➕", callback_data=f"cart_action:add:{product_id}"
+                ),
+            ]
+        )
+        btns.append(
+            [
+                InlineKeyboardButton(
+                    text="❌ Удалить из корзины",
+                    callback_data=f"cart_action:clear:{product_id}",
+                )
+            ]
+        )
+
+    else:
+        btns.append(
+            [
+                InlineKeyboardButton(
+                    text="🛒 В корзину", callback_data=f"cart_action:add:{product_id}"
+                )
+            ]
+        )
+
+    btns.append([InlineKeyboardButton(text="⬅️", callback_data=f"cat:{category_id}")])
+
+    return InlineKeyboardBuilder(btns).as_markup()