from functools import lru_cache
from pathlib import Path

from dotenv import load_dotenv
from pydantic_settings import BaseSettings, SettingsConfigDict

_BASE_DIR = Path(__file__).resolve().parent.parent
_ENV_FILE = _BASE_DIR / ".env"

load_dotenv(_ENV_FILE)


class Settings(BaseSettings):
    model_config = SettingsConfigDict(
        env_file=str(_ENV_FILE),
        env_file_encoding="utf-8",
        env_prefix="TAPPO_",
        case_sensitive=False,
    )

    app_name: str = "TappoCloud Store API"
    debug: bool = False

    db_host: str = "localhost"
    db_port: int = 3306
    db_user: str = "root"
    db_password: str = ""
    db_name: str = "tappocloud"

    default_page_size: int = 20
    max_page_size: int = 100

    # JWT
    jwt_secret: str = "change-me-in-production"
    jwt_algorithm: str = "HS256"
    jwt_expire_hours: int = 24

    # Storage
    storage_base_url: str = "http://localhost:8000/storage"
    storage_path: Path = _BASE_DIR / "storage"

    @property
    def database_url(self) -> str:
        return f"mysql+aiomysql://{self.db_user}:{self.db_password}@{self.db_host}:{self.db_port}/{self.db_name}"


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