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")

    app_name: str = "endpoint-monitor"
    log_level: str = "INFO"
    check_timeout_seconds: float = Field(default=5.0, gt=0, le=30)
    max_redirects: int = Field(default=5, ge=0, le=10)
    max_response_bytes: int = Field(default=1_000_000, ge=1, le=10_000_000)


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