"""应用配置。

从环境变量读取配置，支持 .env 文件。
"""

from pydantic_settings import BaseSettings


class Settings(BaseSettings):
    """应用配置，从环境变量读取。"""

    # 应用
    app_env: str = "development"
    app_debug: bool = True
    app_log_level: str = "info"

    # 数据库
    database_url: str = "postgresql+asyncpg://postgres:postgres@localhost:5432/aiportpilot"

    # Redis
    redis_url: str = "redis://localhost:6379/0"

    # JWT
    jwt_secret_key: str = "change-me-in-production"
    jwt_algorithm: str = "HS256"
    jwt_access_token_ttl_minutes: int = 120
    jwt_refresh_token_ttl_days: int = 7

    # AI / LLM（千问 DashScope OpenAI 兼容模式）
    llm_api_key: str = ""
    llm_base_url: str = "https://dashscope.aliyuncs.com/compatible-mode/v1"
    llm_model: str = "qwen-plus"
    llm_timeout_seconds: int = 60

    model_config = {"env_file": ".env", "env_file_encoding": "utf-8"}


settings = Settings()