from pydantic_settings import BaseSettings, SettingsConfigDict


class Settings(BaseSettings):
    model_config = SettingsConfigDict(env_file=".env", extra="ignore")

    database_url: str = "postgresql://radio:radio@localhost:5432/radio"
    srtm_path: str = "data/srtm"
    canopy_path: str = "data/canopy"
    sample_step_m: float = 30.0
    default_building_height_m: float = 10.0
    default_tx_power_dbm: float = 20.0
    default_rx_sensitivity_dbm: float = -137.0
    max_grid_points: int = 10000
    coverage_concurrency: int = 16
    raster_cache_size: int = 16


settings = Settings()