import os
import importlib.metadata

base_dir = os.path.dirname(os.path.abspath(__file__))


class BaseConfig(object):
    """Base configuration."""

    APP_NAME = "HSMAN"
    APP_VERSION = os.getenv('APP_VERSION', "0.0alpha1")
    APP_SHA = os.getenv('APP_SHA', "000000")
    APP_PREFIX = os.getenv('APP_PREFIX', '')
    DEBUG_TB_ENABLED = False
    WTF_CSRF_ENABLED = False

    # All the followinf vars can be overriden
    # in the environment, using `HSMAN_` prefix
    SECRET_KEY = "secreto"
    ADMIN_GROUPS = "adminGroup"
    OIDC_CLIENT_ID = 'client-id'
    OIDC_CLIENT_SECRET = 'client-secreto'
    OIDC_URL = "https://myidp.example.com/auth"
    OIDC_REDIRECT_URI = 'http://localhost:5000/auth'

    # These are required by hsapi, should not be defined here
    # HSAPI_SERVER = "https://headscale.example.com"
    # HSAPI_API_TOKEN = 'hs-apikey'

    @staticmethod
    def configure(app):
        # Implement this method to do further configuration on your app.
        pass


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

    DEBUG = True
    ENVIRONMENT = "develop"
    TEMPLATES_AUTO_RELOAD = True


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

    TESTING = True
    PRESERVE_CONTEXT_ON_EXCEPTION = False
    ENVIRONMENT = "test"


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

    ENVIRONMENT = "production"
    WTF_CSRF_ENABLED = True


config = dict(
    development=DevelopmentConfig,
    testing=TestingConfig,
    production=ProductionConfig)