重构现代化 FastAPI 后端项目框架

app/core/audit.py

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+# Placeholder for audit logic
+async def log_audit_event(event_type: str, user_id: str, details: dict):
+    pass

app/core/config.py

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+from pydantic_settings import BaseSettings
+
+class Settings(BaseSettings):
+    PROJECT_NAME: str = "TJWater Server"
+    API_V1_STR: str = "/api/v1"
+    SECRET_KEY: str = "your-secret-key-here" # Change in production
+    ALGORITHM: str = "HS256"
+    ACCESS_TOKEN_EXPIRE_MINUTES: int = 30
+    
+    # Database Config (PostgreSQL)
+    DB_NAME: str = "tjwater"
+    DB_HOST: str = "localhost"
+    DB_PORT: str = "5432"
+    DB_USER: str = "postgres"
+    DB_PASSWORD: str = "password"
+
+    # InfluxDB
+    INFLUXDB_URL: str = "http://localhost:8086"
+    INFLUXDB_TOKEN: str = "token"
+    INFLUXDB_ORG: str = "org"
+    INFLUXDB_BUCKET: str = "bucket"
+
+    @property
+    def SQLALCHEMY_DATABASE_URI(self) -> str:
+        return f"postgresql://{self.DB_USER}:{self.DB_PASSWORD}@{self.DB_HOST}:{self.DB_PORT}/{self.DB_NAME}"
+    
+    class Config:
+        env_file = ".env"
+
+settings = Settings()

app/core/encryption.py

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+# Placeholder for encryption logic
+class Encryptor:
+    def encrypt(self, data: str) -> str:
+        return data # Implement actual encryption
+
+    def decrypt(self, data: str) -> str:
+        return data # Implement actual decryption
+
+encryptor = Encryptor()

app/core/security.py

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+from datetime import datetime, timedelta
+from typing import Optional, Union, Any
+from jose import jwt
+from passlib.context import CryptContext
+from app.core.config import settings
+
+pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
+
+def create_access_token(subject: Union[str, Any], expires_delta: Optional[timedelta] = None) -> str:
+    if expires_delta:
+        expire = datetime.utcnow() + expires_delta
+    else:
+        expire = datetime.utcnow() + timedelta(minutes=settings.ACCESS_TOKEN_EXPIRE_MINUTES)
+    
+    to_encode = {"exp": expire, "sub": str(subject)}
+    encoded_jwt = jwt.encode(to_encode, settings.SECRET_KEY, algorithm=settings.ALGORITHM)
+    return encoded_jwt
+
+def verify_password(plain_password: str, hashed_password: str) -> bool:
+    return pwd_context.verify(plain_password, hashed_password)
+
+def get_password_hash(password: str) -> str:
+    return pwd_context.hash(password)