init: 初始化项目

backend/app/services/file_storage.py

@@ -0,0 +1,43 @@
+import os
+import aiofiles
+from pathlib import Path
+from fastapi import UploadFile
+from app.core.config import get_settings
+
+settings = get_settings()
+
+TEMPLATES_DIR = "templates"
+REF_FILES_DIR = "ref_files"
+RESULTS_DIR = "results"
+
+
+def _ensure_dir(path: str) -> str:
+    os.makedirs(path, exist_ok=True)
+    return path
+
+
+def get_storage_dir(subdir: str) -> str:
+    return _ensure_dir(os.path.join(settings.STORAGE_ROOT, subdir))
+
+
+async def save_upload(upload_file: UploadFile, subdir: str) -> str:
+    dir_path = get_storage_dir(subdir)
+    file_path = os.path.join(dir_path, upload_file.filename or "unnamed")
+    async with aiofiles.open(file_path, "wb") as f:
+        content = await upload_file.read()
+        await f.write(content)
+    return file_path
+
+
+async def get_file_content(file_path: str) -> bytes:
+    async with aiofiles.open(file_path, "rb") as f:
+        return await f.read()
+
+
+def delete_file(file_path: str) -> None:
+    if os.path.exists(file_path):
+        os.remove(file_path)
+
+
+def get_absolute_path(rel_path: str) -> str:
+    return os.path.abspath(rel_path)