Added product page fetching

.idea/.gitignore

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+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

.idea/inspectionProfiles/Project_Default.xml

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+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="PyPackageRequirementsInspection" enabled="true" level="WARNING" enabled_by_default="true">
+      <option name="ignoredPackages">
+        <value>
+          <list size="3">
+            <item index="0" class="java.lang.String" itemvalue="pymssql" />
+            <item index="1" class="java.lang.String" itemvalue="Django" />
+            <item index="2" class="java.lang.String" itemvalue="cffi" />
+          </list>
+        </value>
+      </option>
+    </inspection_tool>
+  </profile>
+</component>

.idea/inspectionProfiles/profiles_settings.xml

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+<component name="InspectionProjectProfileManager">
+  <settings>
+    <option name="PROJECT_PROFILE" value="Default" />
+    <option name="USE_PROJECT_PROFILE" value="false" />
+    <version value="1.0" />
+  </settings>
+</component>

.idea/misc.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Black">
+    <option name="sdkName" value="Python 3.9 (surugaya_api)" />
+  </component>
+  <component name="PythonCompatibilityInspectionAdvertiser">
+    <option name="version" value="3" />
+  </component>
+</project>

.idea/modules.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/surugaya_api.iml" filepath="$PROJECT_DIR$/.idea/surugaya_api.iml" />
+    </modules>
+  </component>
+</project>

.idea/surugaya_api.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="PYTHON_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/.venv" />
+    </content>
+    <orderEntry type="jdk" jdkName="Python 3.9 (surugaya_api)" jdkType="Python SDK" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

.idea/vcs.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

surugaya_api/consts.py

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

surugaya_api/product.py

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+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