first-update

backend/app/core/config.py

@@ -0,0 +1,49 @@
+"""
+Application Configuration
+"""
+
+from functools import lru_cache
+from pydantic_settings import BaseSettings
+from pydantic import Field
+
+
+class Settings(BaseSettings):
+    """Application settings"""
+
+    # App
+    APP_NAME: str = "YG-Dataset"
+    DEBUG: bool = True
+    HOST: str = "0.0.0.0"
+    PORT: int = 8000
+
+    # Database - 使用 SQLite 进行开发/测试
+    # 生产环境可切换为 PostgreSQL
+    DATABASE_URL: str = Field(
+        default="sqlite:///./ygdataset.db",
+        description="Database connection URL (sqlite:// or postgresql+asyncpg://)"
+    )
+    DATABASE_URL_SYNC: str = Field(
+        default="sqlite:///./ygdataset.db",
+        description="Synchronous database connection URL"
+    )
+
+    # Redis
+    REDIS_URL: str = "redis://localhost:6379/0"
+
+    # File Storage
+    UPLOAD_DIR: str = "./uploads"
+    MAX_FILE_SIZE: int = 100 * 1024 * 1024  # 100MB
+
+    # LLM Settings
+    DEFAULT_MODEL_PROVIDER: str = "openai"
+    DEFAULT_MODEL_NAME: str = "gpt-4o-mini"
+
+    class Config:
+        env_file = ".env"
+        extra = "allow"
+
+
+@lru_cache()
+def get_settings() -> Settings:
+    """Get cached settings"""
+    return Settings()