"""
Configuration module for the Flask application.
"""
import os
from typing import Any, Dict, List
from dataclasses import dataclass, field

def get_cors_origins() -> List[str]:
    """Get CORS origins from environment variable."""
    return os.environ.get('CORS_ORIGINS', '*').split(',')

@dataclass
class Config:
    """Base configuration class."""
    DEBUG: bool = os.environ.get('DEBUG', 'False').lower() == 'true'
    TESTING: bool = os.environ.get('TESTING', 'False').lower() == 'true'
    PORT: int = int(os.environ.get('PORT', 8080))  # Changed default from 5000 to 8080
    
    # API credentials
    API_USERNAME: str = os.environ.get('API_USERNAME', 'admin')
    API_PASSWORD: str = os.environ.get('API_PASSWORD', 'password')

    # API keys for Simbrella to FirstBank API
    SIMBRELLA_APP_ID: str = os.environ.get('SIMBRELLA_APP_ID', '')
    SIMBRELLA_API_KEY: str = os.environ.get('SIMBRELLA_API_KEY', '')

    # Database configuration
    DATABASE_URI: str = os.environ.get('DATABASE_URI', 'sqlite:///app.db')

    # Logging configuration
    LOG_LEVEL: str = os.environ.get('LOG_LEVEL', 'INFO')

    # CORS settings
    CORS_ORIGINS: List[str] = field(default_factory=get_cors_origins)

    @classmethod
    def to_dict(cls) -> Dict[str, Any]:
        """Convert config to dictionary for Flask."""
        return {k: v for k, v in cls.__dict__.items()
                if not k.startswith('__') and not callable(v)}