lyric-karaoke-cli/src/config.js

A CLI application for displaying song lyrics in a karaoke-style format

require('dotenv').config();

/**
 * Configuration module that reads API key and other settings from environment variables
 */
const config = {
  // API Key for the music API service
  apiKey: process.env.API_KEY,
  
  // Base URL for the API
  apiBaseUrl: process.env.API_BASE_URL || 'https://api.genius.com',
  
  // Cache settings
  cache: {
    enabled: process.env.CACHE_ENABLED !== 'false',
    directory: process.env.CACHE_DIRECTORY || './.cache',
    ttl: parseInt(process.env.CACHE_TTL || '86400', 10) // Default: 24 hours in seconds
  },
  
  // CLI settings
  cli: {
    maxSearchResults: parseInt(process.env.MAX_SEARCH_RESULTS || '10', 10)
  }
};

// Validate required configuration
if (!config.apiKey) {
  console.warn('API_KEY is not set in environment variables. The application may not function correctly.');
  console.log('Please set your API key in the .env file.');
}

/**
 * Returns the API key from configuration
 * @returns {string|null} The API key or null if not set
 */
const getApiKey = () => {
  return config.apiKey;
};

module.exports = {
  ...config,
  getApiKey
};