// Configuration for the frontend application
const CONFIG = {
  // API Configuration
  API_BASE_URL: process.env.NODE_ENV === 'production' 
    ? 'https://api.seo-image-renamer.com' 
    : 'http://localhost:3001',
  
  // WebSocket Configuration
  WEBSOCKET_URL: process.env.NODE_ENV === 'production' 
    ? 'wss://api.seo-image-renamer.com' 
    : 'ws://localhost:3001',
  
  // Stripe Configuration
  STRIPE_PUBLISHABLE_KEY: process.env.NODE_ENV === 'production'
    ? 'pk_live_your_stripe_publishable_key'
    : 'pk_test_51234567890abcdef',
  
  // Google OAuth Configuration
  GOOGLE_CLIENT_ID: process.env.NODE_ENV === 'production'
    ? 'your-production-google-client-id.apps.googleusercontent.com'
    : 'your-dev-google-client-id.apps.googleusercontent.com',
  
  // Upload Configuration
  MAX_FILE_SIZE: 10 * 1024 * 1024, // 10MB
  MAX_FILES: 50,
  SUPPORTED_FORMATS: ['image/jpeg', 'image/png', 'image/webp', 'image/gif'],
  
  // Processing Configuration
  WEBSOCKET_RECONNECT_INTERVAL: 5000,
  MAX_RECONNECT_ATTEMPTS: 5,
  
  // UI Configuration
  ANIMATION_DURATION: 300,
  TOAST_DURATION: 5000,
  
  // Feature Flags
  FEATURES: {
    GOOGLE_AUTH: true,
    STRIPE_PAYMENTS: true,
    WEBSOCKET_UPDATES: true,
    IMAGE_PREVIEW: true,
    BATCH_PROCESSING: true,
    DOWNLOAD_TRACKING: true,
  },
  
  // Error Messages
  ERRORS: {
    NETWORK_ERROR: 'Network error. Please check your connection and try again.',
    AUTH_REQUIRED: 'Please sign in to continue.',
    QUOTA_EXCEEDED: 'You have reached your monthly quota. Please upgrade your plan.',
    FILE_TOO_LARGE: 'File is too large. Maximum size is 10MB.',
    UNSUPPORTED_FORMAT: 'Unsupported file format. Please use JPG, PNG, WebP, or GIF.',
    TOO_MANY_FILES: 'Too many files. Maximum is 50 files per batch.',
    PROCESSING_FAILED: 'Processing failed. Please try again.',
    DOWNLOAD_FAILED: 'Download failed. Please try again.',
  },
  
  // Success Messages
  SUCCESS: {
    UPLOAD_COMPLETE: 'Files uploaded successfully!',
    PROCESSING_COMPLETE: 'Images processed successfully!',
    DOWNLOAD_READY: 'Your download is ready!',
    PAYMENT_SUCCESS: 'Payment successful! Your plan has been upgraded.',
    KEYWORDS_ENHANCED: 'Keywords enhanced successfully!',
  },
  
  // API Endpoints
  ENDPOINTS: {
    // Auth
    GOOGLE_AUTH: '/api/auth/google',
    LOGIN: '/api/auth/login',
    LOGOUT: '/api/auth/logout',
    ME: '/api/auth/me',
    
    // Users
    USER_PROFILE: '/api/users/profile',
    USER_STATS: '/api/users/stats',
    USER_QUOTA: '/api/users/quota',
    
    // Batches
    BATCHES: '/api/batches',
    BATCH_STATUS: '/api/batches/:id/status',
    BATCH_IMAGES: '/api/batches/:id/images',
    
    // Images
    IMAGES: '/api/images',
    IMAGE_UPLOAD: '/api/images/upload',
    IMAGE_UPDATE: '/api/images/:id',
    
    // Keywords
    KEYWORD_ENHANCE: '/api/keywords/enhance',
    
    // Payments
    PAYMENT_CHECKOUT: '/api/payments/checkout',
    PAYMENT_PORTAL: '/api/payments/portal',
    PAYMENT_SUBSCRIPTION: '/api/payments/subscription',
    PAYMENT_PLANS: '/api/payments/plans',
    
    // Downloads
    DOWNLOAD_CREATE: '/api/downloads/create',
    DOWNLOAD_STATUS: '/api/downloads/:id/status',
    DOWNLOAD_FILE: '/api/downloads/:id',
    DOWNLOAD_HISTORY: '/api/downloads/user/history',
  },
  
  // WebSocket Events
  WEBSOCKET_EVENTS: {
    // Connection
    CONNECT: 'connect',
    DISCONNECT: 'disconnect',
    ERROR: 'error',
    
    // Batch Processing
    BATCH_CREATED: 'batch.created',
    BATCH_UPDATED: 'batch.updated',
    BATCH_COMPLETED: 'batch.completed',
    BATCH_FAILED: 'batch.failed',
    
    // Image Processing
    IMAGE_PROCESSING: 'image.processing',
    IMAGE_COMPLETED: 'image.completed',
    IMAGE_FAILED: 'image.failed',
    
    // Progress Updates
    PROGRESS_UPDATE: 'progress.update',
    
    // User Updates
    QUOTA_UPDATED: 'quota.updated',
    SUBSCRIPTION_UPDATED: 'subscription.updated',
  },
  
  // Local Storage Keys
  STORAGE_KEYS: {
    AUTH_TOKEN: 'seo_auth_token',
    USER_DATA: 'seo_user_data',
    RECENT_KEYWORDS: 'seo_recent_keywords',
    UPLOAD_PROGRESS: 'seo_upload_progress',
    BATCH_DATA: 'seo_batch_data',
  },
  
  // URLs
  URLS: {
    TERMS_OF_SERVICE: '/terms',
    PRIVACY_POLICY: '/privacy',
    SUPPORT: '/support',
    DOCUMENTATION: '/docs',
  },
  
  // Quota Limits by Plan
  PLAN_LIMITS: {
    BASIC: 50,
    PRO: 500,
    MAX: 1000,
  },
  
  // Plan Prices (in cents)
  PLAN_PRICES: {
    BASIC: 0,
    PRO: 900,  // $9.00
    MAX: 1900, // $19.00
  },
  
  // Image Processing Settings
  IMAGE_PROCESSING: {
    MAX_FILENAME_LENGTH: 100,
    MIN_KEYWORDS: 1,
    MAX_KEYWORDS: 10,
    SUPPORTED_EXTENSIONS: ['.jpg', '.jpeg', '.png', '.webp', '.gif'],
  },
  
  // Development Settings
  DEV: {
    ENABLE_LOGGING: true,
    MOCK_API_DELAY: 1000,
    ENABLE_DEBUG_MODE: process.env.NODE_ENV === 'development',
  },
};

// Environment-specific overrides
if (typeof window !== 'undefined') {
  // Browser environment
  const hostname = window.location.hostname;
  
  if (hostname === 'localhost' || hostname === '127.0.0.1') {
    CONFIG.API_BASE_URL = 'http://localhost:3001';
    CONFIG.WEBSOCKET_URL = 'ws://localhost:3001';
  }
}

// Export configuration
if (typeof module !== 'undefined' && module.exports) {
  module.exports = CONFIG;
} else if (typeof window !== 'undefined') {
  window.CONFIG = CONFIG;
}