"""Application configuration settings."""

import os
from dotenv import load_dotenv

# Load .env from project root (if present)
load_dotenv()


class BaseConfig:
    """Base configuration shared by all environments."""

    SECRET_KEY = os.getenv("SECRET_KEY", "dev-secret-key")
    DEBUG = False
    TESTING = False


class DevelopmentConfig(BaseConfig):
    """Development configurations."""

    DEBUG = True


class ProductionConfig(BaseConfig):
    """Production configurations."""

    DEBUG = False


class TestingConfig(BaseConfig):
    """Testing configurations."""

    TESTING = True
    DEBUG = True


config = {
    "development": DevelopmentConfig,
    "production": ProductionConfig,
    "testing": TestingConfig,
    "default": DevelopmentConfig,
}