"""
Application configuration using pydantic-settings.
Loads from environment variables and .env file.
"""

from pathlib import Path
from typing import List
from pydantic_settings import BaseSettings
import os


class Settings(BaseSettings):
    """Application settings loaded from environment."""
    
    # Paths
    data_dir: Path = Path(__file__).parent.parent / "data"
    frontend_dir: Path = Path(__file__).parent.parent / "frontend"
    
    # Server
    host: str = "0.0.0.0"
    port: int = 80
    
    # CORS
    allowed_origins: List[str] = ["https://schoolcompare.co.uk", "http://localhost:8000", "http://localhost:3000"]
    
    # API
    default_page_size: int = 50
    max_page_size: int = 100
    
    class Config:
        env_file = ".env"
        env_file_encoding = "utf-8"
        extra = "ignore"


# Singleton instance
settings = Settings()