import dotenv from 'dotenv';

// Load environment variables from .env file
dotenv.config();

export interface AppConfig {
  port: number;
  apiKey: string;
  databasePath: string;
  relayUrls: string[];
  autoRestart: boolean;
  maxRestarts: number;
  logLevel: string;
}

export function loadConfig(): AppConfig {
  return {
    port: parseInt(process.env.PORT || '9090'),
    apiKey: process.env.API_KEY || 'your-api-key-change-this',
    databasePath: process.env.DATABASE_PATH || './data/server.db',
    relayUrls: process.env.RELAY_URLS?.split(',') || ['ws://localhost:8090'],
    autoRestart: process.env.AUTO_RESTART === 'true',
    maxRestarts: parseInt(process.env.MAX_RESTARTS || '10'),
    logLevel: process.env.LOG_LEVEL || 'info'
  };
}

export const config: AppConfig = loadConfig();

// Validate required environment variables
if (!config.apiKey || config.apiKey === 'your-api-key-change-this') {
  console.warn('⚠️  Warning: Using default API key. Set API_KEY environment variable for production.');
}