refactor(book_service): 优化下载路径处理和方法静态化

- 移除上级目录引用，直接使用项目根目录作为下载路径
- 将create_folder方法改为静态方法以提高代码组织性
- 注释掉备用的文件命名逻辑以简化下载流程
- 更新文件路径构建方式，使用Path对象进行路径拼接
- 添加环境变量调试打印和路径验证输出
- 优化文件下载的目标目录创建逻辑

app/services/book_service.py

@@ -1,3 +1,5 @@
+import os
+
 import requests
 from pathlib import Path
 from bs4 import BeautifulSoup
@@ -22,8 +24,8 @@ class BookService:
         self.setting["targetDate"] = timestamp_to_datetime(target_ts)
 
         app_dir = find_project_root()
-        print(app_dir)
-        self.download_path = app_dir.parent / "download"  # 下载目录
+        self.download_path = app_dir / "download"  # 下载目录
+        print(self.download_path)
         self.today_timestamp = get_today_timestamp()
         self.one_date_loading = False
         self.session = requests.session()
@@ -54,7 +56,8 @@ class BookService:
             name = name.replace(old, new)
         return name
 
-    def create_folder(self, parent_dir: Path, folder_name: str) -> Path: # 创建文件夹
+    @staticmethod
+    def create_folder(parent_dir: Path, folder_name: str) -> Path: # 创建文件夹
         """创建文件夹（如果不存在）并返回路径"""
         target = parent_dir / folder_name
         target.mkdir(parents=True, exist_ok=True)
@@ -80,6 +83,8 @@ class BookService:
                             return
                 yield from self.download_file(f"{self.setting["baseUrl"]}{i.select_one(
                     'a')['href']}", name, i.select_one('a').string)
+                # yield from self.download_file(f"{self.setting["baseUrl"]}{i.select_one(
+                #     'a')['href']}", name, self.legitimate_naming(i.select_one('a').string))
             except RetryError as e:
                 print('重试三次也不成功')
 
@@ -95,7 +100,8 @@ class BookService:
                 yield f"event: mes_error\ndata: {self.setting["targetDate"]} {file_name}\n\n"
                 print("不是可下载文件")
                 return
-            target_dir = f"download/{self.setting["targetDate"]}/{dir_name}/{file_name}"
+            target_dir = self.download_path / self.setting["targetDate"] / dir_name / file_name
+            print(target_dir)
             with open(target_dir, 'wb') as f:
                 for chunk in response.iter_content(chunk_size=1024):
                     if chunk:
@@ -185,6 +191,7 @@ class BookService:
             return element.select_one(".by em span").string
 
     def book_download(self):
+        print(os.getenv('aa'))
         self.create_folder(self.download_path, self.setting["targetDate"])  # 创建文件夹
         target_page = self.setting["totalPage"] - self.setting["targetCountdownPage"]  # 目标页
         yield from self.section_page(target_page)  # 前往目标页