from pathlib import Path
from typing import Any, List

from pydantic import AnyHttpUrl, validator
from pydantic_settings import BaseSettings


class Settings(BaseSettings):
    API_V1_STR: str = "/api/v1"
    PROJECT_NAME: str = "Todo App API"
    
    # CORS Configuration
    BACKEND_CORS_ORIGINS: List[AnyHttpUrl] = []

    @validator("BACKEND_CORS_ORIGINS", pre=True)
    def assemble_cors_origins(cls, v: Any) -> List[str]:
        if isinstance(v, str) and not v.startswith("["):
            return [i.strip() for i in v.split(",")]
        elif isinstance(v, (list, str)):
            return v
        raise ValueError(v)
    
    # Database
    # Get the project root directory dynamically
    BASE_DIR: Path = Path(__file__).parent.parent.parent.absolute()
    DB_DIR: Path = BASE_DIR / "storage" / "db"
    
    class Config:
        case_sensitive = True
        env_file = ".env"


settings = Settings()