import os
from datetime import timedelta

class Config:
    SECRET_KEY = os.environ.get('SECRET_KEY') or os.urandom(24)
    SQLALCHEMY_DATABASE_URI = os.environ.get('DATABASE_URL') or \
        'postgresql://postgres:postgres@localhost/proxy_manager'
    SQLALCHEMY_TRACK_MODIFICATIONS = False
    
    # JWT Settings
    JWT_SECRET_KEY = os.environ.get('JWT_SECRET_KEY') or os.urandom(24)
    JWT_ACCESS_TOKEN_EXPIRES = timedelta(hours=1)
    
    # SSL Settings
    SSL_CERT_DIR = os.environ.get('CERT_DIR') or '/opt/proxy-manager/certs'
    SSL_KEY_DIR = os.environ.get('KEY_DIR') or '/opt/proxy-manager/keys'
    
    # Proxy Settings
    PROXY_CHECK_INTERVAL = 60  # seconds
    STATS_COLLECTION_INTERVAL = 300  # seconds