require('dotenv').config();

module.exports = {
  // Server configuration
  server: {
    port: process.env.PORT || 3000,
    nodeEnv: process.env.NODE_ENV || 'development'
  },

  // Session configuration
  session: {
    secret: process.env.SESSION_SECRET || 'change-this-secret',
    resave: false,
    saveUninitialized: false,
    cookie: {
      secure: process.env.NODE_ENV === 'production',
      httpOnly: true,
      maxAge: 24 * 60 * 60 * 1000 // 24 hours
    }
  },

  // MQTT configuration
  mqtt: {
    broker: process.env.MQTT_BROKER || 'mqtt://mqtt.meshtastic.org',
    port: parseInt(process.env.MQTT_PORT) || 1883,
    username: process.env.MQTT_USERNAME || 'meshdev',
    password: process.env.MQTT_PASSWORD || 'large4cats',
    topic: process.env.MQTT_TOPIC || 'msh/US/#',
    pubTopic: process.env.MQTT_PUB_TOPIC || 'msh/US/2/json/mqtt/', // The ending / is apparently critical
    options: {
      clientId: `meshtastic-dashboard-${Math.random().toString(16).substr(2, 8)}`,
      clean: true,
      reconnectPeriod: 1000,
      connectTimeout: 30 * 1000
    }
  },

  // Data retention configuration
  dataRetention: {
    days: parseInt(process.env.DATA_RETENTION_DAYS) || 30,
    purgeCronSchedule: process.env.PURGE_CRON_SCHEDULE || '0 2 * * *'
  },

  // Rate limiting configuration
  rateLimit: {
    windowMs: parseInt(process.env.RATE_LIMIT_WINDOW_MS) || 15 * 60 * 1000, // 15 minutes
    maxRequests: parseInt(process.env.RATE_LIMIT_MAX_REQUESTS) || 100
  },

  // Logging configuration
  logging: {
    level: process.env.LOG_LEVEL || 'info'
  }
};