"""统一配置模块 - 基于 Pydantic Settings"""

from pathlib import Path

from pydantic_settings import BaseSettings


class Settings(BaseSettings):
    """应用全局配置，支持 .env 文件和环境变量覆盖。"""

    # Database
    database_url: str = "sqlite+aiosqlite:///./data/buffer_v2.db"

    # Server
    host: str = "0.0.0.0"
    port: int = 8600

    # Cache
    cache_ttl_seconds: int = 300
    redis_url: str = "redis://localhost:6379/0"
    redis_enabled: bool = True  # 是否启用Redis缓存

    # Workers
    max_workers: int = 2

    # Scheduler
    scheduler_max_instances: int = 3

    # Logging
    log_level: str = "INFO"

    # JWT
    jwt_secret_key: str = "change-me-in-production"
    jwt_algorithm: str = "HS256"
    jwt_expire_hours: int = 24

    # Paths
    data_dir: Path = Path("./data")

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


settings = Settings()