import os

class Config:
    SECRET_KEY = os.environ.get('SECRET_KEY', 'sentimen-mbg-secret-key-2026')
    
    SQLALCHEMY_DATABASE_URI = os.environ.get(
        'DATABASE_URL',
        'mysql+pymysql://root:@localhost/sentimen_mbg'
    )
    
    SQLALCHEMY_TRACK_MODIFICATIONS = False
    
    UPLOAD_FOLDER = os.path.join(os.path.dirname(__file__), 'static', 'uploads')
    
    MAX_CONTENT_LENGTH = 16 * 1024 * 1024  # 16MB max upload
    
    ALLOWED_EXTENSIONS = {'csv', 'xlsx'}