Added product page fetching

surugaya_api/consts.py

@@ -0,0 +1 @@
+SURU_COOKIE_STRING = "safe_search_option=3; safe_search_expired=2; z_hyoji=0; p_adult=1; p_hyoji=0"

surugaya_api/product.py

@@ -0,0 +1,75 @@
+import json
+from dataclasses import dataclass
+from typing import Optional
+
+import aiohttp
+from bs4 import BeautifulSoup
+
+from surugaya_api.consts import SURU_COOKIE_STRING
+
+@dataclass
+class ProductStock:
+    condition: str
+    stock: str
+    price: int
+    on_sale_price: Optional[int]
+
+    @property
+    def is_on_sale(self) -> bool:
+        return self.on_sale_price is not None
+
+    @staticmethod
+    def from_item_price(item_price):
+        data: dict = json.loads(item_price.select_one("input").attrs["data-zaiko"])
+
+        return ProductStock(
+            condition=item_price.select_one("label").attrs["data-label"].strip(),
+            stock=data["zaiko"],
+            price=data["baika"],
+            on_sale_price=data.get("price_sale")
+        )
+
+@dataclass
+class Product:
+    id: int
+    name: str
+    main_image_href: str
+    stock: [ProductStock]
+
+    @property
+    def in_stock(self):
+        return not self.stock
+
+
+async def load_product(product_id, aiohttp_session=None):
+    if not aiohttp_session:
+        _aiohttp_session = aiohttp.ClientSession()
+    else:
+        _aiohttp_session = aiohttp_session
+
+    async with _aiohttp_session.get(
+            url="https://www.suruga-ya.jp/product/detail/" + str(product_id),
+            headers={
+                "Cookie": SURU_COOKIE_STRING,
+            },
+    ) as response:
+        page = await response.text()
+
+        page_bs = BeautifulSoup(
+            page, features="html.parser"
+        )
+
+        product = Product(
+            id=int(product_id),
+            name=page_bs.select_one("#item_title").text.strip(),
+            main_image_href=page_bs.select_one(".main-pro-img").attrs["src"],
+            stock=[
+                ProductStock.from_item_price(item_price)
+                for item_price in page_bs.select(".item-price")
+            ]
+        )
+
+    if not aiohttp_session:
+        await _aiohttp_session.close()
+
+    return product