separated clients handlers, cart->checkout ppline

handlers/client/products.py

@@ -0,0 +1,164 @@
+import os
+from re import Match
+from aiogram import Router, F
+from aiogram.types import CallbackQuery, FSInputFile
+from aiogram.fsm.context import FSMContext
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from config import PAGE_SIZE
+from misc.kb.client import (
+    render_product_interactions,
+    render_products,
+)
+from misc.texts import get_product_description
+from repositories.categories import CategoriesRepository
+from repositories.products import ProductRepository
+from services.orders import OrderService
+
+router = Router()
+
+
+@router.callback_query(
+    F.data.regexp(r"products:(?P<category_id>.*):(?P<page_id>\d+)").as_(
+        "pagination_match"
+    )
+)
+async def products_pagination(
+    cb: CallbackQuery,
+    state: FSMContext,
+    pagination_match: Match[str],
+    session: AsyncSession,
+    products_repo: ProductRepository,
+    categories_repo: CategoriesRepository,
+):
+    await state.clear()
+
+    pagination_data = pagination_match.groupdict()
+    category_id = int(pagination_data.get("category_id"))
+    category = await categories_repo.get_category_by_id(session, category_id)
+    page_id = int(pagination_data.get("page_id", 0))
+
+    products = await products_repo.get_product_by_category(
+        session, category_id, limit=PAGE_SIZE + 1, offset=page_id * PAGE_SIZE
+    )
+    products_len = len(products)
+
+    await cb.message.edit_reply_markup(
+        reply_markup=render_products(
+            products[:PAGE_SIZE],
+            parent_id=category.parent_id,
+            cat_id=category_id,
+            page=page_id,
+            show_prev=page_id > 0,
+            show_next=products_len > PAGE_SIZE,
+        ),
+    )
+
+
+@router.callback_query(F.data.startswith("product:"))
+async def product_card(
+    cb: CallbackQuery,
+    state: FSMContext,
+    session: AsyncSession,
+    products_repo: ProductRepository,
+    order_service: OrderService,
+):
+    await state.clear()
+
+    product_id = int(cb.data.split(":")[1])
+    product = await products_repo.get_product_by_id(session, product_id)
+
+    order_item = await order_service.get_cart_product_amount(
+        session, customer=cb.from_user.id, product_id=product_id
+    )
+
+    if product.file_id:
+        await cb.message.delete()
+
+        msg = await cb.message.answer_photo(
+            product.file_id,
+            caption=get_product_description(product),
+            reply_markup=render_product_interactions(
+                product_id=product.id,
+                category_id=product.category_id,
+                show_cart=bool(order_item),
+                cart_amount=order_item,
+            ),
+        )
+        return
+
+    if not os.path.isfile(product.img_path):
+        await cb.message.edit_text(
+            get_product_description(product),
+            reply_markup=render_product_interactions(
+                product_id=product.id,
+                category_id=product.category_id,
+                show_cart=bool(order_item),
+                cart_amount=order_item,
+            ),
+        )
+        return
+
+    await cb.message.delete()
+    msg = await cb.message.answer_photo(
+        FSInputFile(product.img_path),
+        caption=get_product_description(product),
+        reply_markup=render_product_interactions(
+            product_id=product.id,
+            category_id=product.category_id,
+            show_cart=bool(order_item),
+            cart_amount=order_item,
+        ),
+    )
+
+    if not msg.photo:
+        return  # TODO: Add logging
+
+    await products_repo.add_product_file_id(
+        session, product_id, file_id=msg.photo[-1].file_id
+    )
+
+
+@router.callback_query(F.data.startswith("cart_action:"))
+async def add_to_cart(
+    cb: CallbackQuery,
+    state: FSMContext,
+    session: AsyncSession,
+    order_service: OrderService,
+    products_repo: ProductRepository,
+):
+    await state.clear()
+
+    action = cb.data.split(":")[1]
+    product_id = int(cb.data.split(":")[2])
+    product = await products_repo.get_product_by_id(session, product_id)
+    show_cart = True
+
+    if action == "add":
+        quantity = await order_service.add_to_cart(
+            session, customer=cb.from_user.id, product_id=product_id
+        )
+    elif action == "remove":
+        quantity = await order_service.remove_from_cart(
+            session, customer=cb.from_user.id, product_id=product_id
+        )
+        show_cart = bool(quantity)
+    else:
+        show_cart = False
+        quantity = 0
+        await order_service.clear_cart_item(
+            session, customer=cb.from_user.id, product_id=product_id
+        )
+
+    try:
+        await cb.message.edit_reply_markup(
+            reply_markup=render_product_interactions(
+                product_id=product_id,
+                category_id=product.category_id,
+                show_cart=show_cart,
+                cart_amount=quantity,
+            )
+        )
+    except Exception as e:
+        await cb.answer("🍃")
+        raise e