from functools import lru_cache
from pathlib import Path

from pydantic_settings import BaseSettings, SettingsConfigDict


class Settings(BaseSettings):
    model_config = SettingsConfigDict(env_file=".env", env_file_encoding="utf-8", extra="ignore")

    app_name: str = "GroupHome"
    environment: str = "development"
    dev_mode: bool = True
    server_name: str = "GroupHome Local"
    server_origin: str = "http://localhost:8000"
    api_base_url: str = "http://localhost:8000/api"
    frontend_origin: str = "http://localhost:5173"
    database_url: str = "sqlite:///./grouphome.db"
    session_secret: str = "dev-change-me"
    session_cookie_name: str = "grouphome_session"
    cookie_secure: bool = False
    cors_origins: str = "http://localhost:5173,http://127.0.0.1:5173,http://localhost:4173"
    upload_dir: Path = Path("./storage/uploads")
    max_upload_bytes: int = 10 * 1024 * 1024
    remote_request_timeout_seconds: float = 8.0

    @property
    def allowed_origins(self) -> list[str]:
        return [origin.strip() for origin in self.cors_origins.split(",") if origin.strip()]


@lru_cache
def get_settings() -> Settings:
    settings = Settings()
    settings.upload_dir.mkdir(parents=True, exist_ok=True)
    return settings