"""Configuration settings for the Flask application."""
import os

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


class Config:
    """Base configuration."""
    SECRET_KEY = os.environ.get('SECRET_KEY', 'dev-secret-key')
    SQLALCHEMY_TRACK_MODIFICATIONS = False
    
    # API settings
    RESTX_MASK_SWAGGER = False
    RESTX_ERROR_404_HELP = False
    
    # JWT settings
    JWT_SECRET_KEY = os.environ.get('JWT_SECRET_KEY', 'jwt-dev-secret-key')
    JWT_EXPIRATION_DAYS = 30
    JWT_ALGORITHM = 'HS256'


class DevelopmentConfig(Config):
    """Development configuration."""
    DEBUG = True
    SQLALCHEMY_DATABASE_URI = os.environ.get('DATABASE_URL') or \
        'sqlite:///' + os.path.join(basedir, '..', 'dev.db')


class TestingConfig(Config):
    """Testing configuration with SQLite."""
    TESTING = True
    SQLALCHEMY_DATABASE_URI = 'sqlite:///:memory:'


class ProductionConfig(Config):
    """Production configuration with PostgreSQL."""
    DEBUG = False
    SQLALCHEMY_DATABASE_URI = os.environ.get('DATABASE_URL') or \
        'postgresql://localhost/work_statistics'


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