from functools import lru_cache

from pydantic import Field
from pydantic_settings import BaseSettings, SettingsConfigDict


class Settings(BaseSettings):
    model_config = SettingsConfigDict(env_prefix="MONITOR_", extra="ignore")

    host: str = "0.0.0.0"
    port: int = Field(default=8000, ge=1, le=65535)
    log_level: str = "INFO"
    check_timeout_seconds: float = Field(default=5.0, gt=0, le=30)
    max_redirects: int = Field(default=3, ge=0, le=10)


@lru_cache
def get_settings() -> Settings:
    return Settings()