"""Application configuration."""
import os
from pathlib import Path
from pydantic_settings import BaseSettings
from pydantic import Field

BASE_DIR = Path(__file__).parent
DATA_DIR = Path(os.getenv("DATA_DIR", "/app/data"))
DATA_DIR.mkdir(parents=True, exist_ok=True)


class Settings(BaseSettings):
    """Application settings."""
    
    # Security
    SECRET_KEY: str = Field(default="change-me-in-production", description="Secret key for JWT")
    ALGORITHM: str = "HS256"
    ACCESS_TOKEN_EXPIRE_MINUTES: int = 60 * 24 * 7  # 7 days
    
    # Database
    DATABASE_URL: str = Field(default=f"sqlite:///{DATA_DIR}/ipmi_fan_control.db")
    
    # IPMI Settings
    IPMITOOL_PATH: str = Field(default="ipmitool", description="Path to ipmitool binary")
    PANIC_TIMEOUT_SECONDS: int = Field(default=60, description="Seconds without sensor data before panic mode")
    PANIC_FAN_SPEED: int = Field(default=100, description="Fan speed during panic mode")
    
    # Fan Control Settings
    DEFAULT_FAN_CURVE: list = Field(default=[
        {"temp": 30, "speed": 10},
        {"temp": 40, "speed": 20},
        {"temp": 50, "speed": 35},
        {"temp": 60, "speed": 50},
        {"temp": 70, "speed": 70},
        {"temp": 80, "speed": 100},
    ])
    
    # App Settings
    APP_NAME: str = "IPMI Fan Control"
    DEBUG: bool = False
    
    class Config:
        env_file = ".env"
        env_file_encoding = "utf-8"


settings = Settings()