import os

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

class Config:
    SECRET_KEY = os.environ.get('SECRET_KEY', 'your-secret-key')
    SQLALCHEMY_DATABASE_URI = os.environ.get('DATABASE_URL', 'sqlite:///' + os.path.join(BASE_DIR, 'instance', 'app.db'))
    SQLALCHEMY_TRACK_MODIFICATIONS = False
    UPLOAD_FOLDER = os.path.join(BASE_DIR, 'static', 'uploads')

    @staticmethod
    def init_app(app):
        # Create necessary directories
        os.makedirs(os.path.dirname(app.config['SQLALCHEMY_DATABASE_URI'].replace('sqlite:///', '')), exist_ok=True)
        os.makedirs(app.config['UPLOAD_FOLDER'], exist_ok=True)