// Platform Detector Module
// Detects whether we're on Gmail or Instantly.ai and provides platform-specific configurations

const PlatformDetector = {
  // Detect current platform
  getCurrentPlatform() {
    const hostname = window.location.hostname;
    const pathname = window.location.pathname;
    
    if (hostname.includes('mail.google.com')) {
      return 'gmail';
    } else if (hostname.includes('app.instantly.ai')) {
      return 'instantly';
    } else if (hostname.includes('app.pipl.ai')) {
      return 'plusvibe';
    }
    
    return 'unknown';
  },

  // Get platform-specific configuration
  getConfig() {
    const platform = this.getCurrentPlatform();
    
    const configs = {
      gmail: {
        name: 'Gmail',
        selectors: {
          replyBox: 'div[aria-label="Message Body"], div[contenteditable="true"], div.editable',
          threadContainer: 'div[role="listitem"]',
          emailSender: 'span[email]',
          emailSubject: 'h2[data-legacy-thread-id]',
          composeButton: 'div[gh="cm"]',
          checkboxes: 'div[role="checkbox"][aria-checked="true"]'
        },
        extractors: {
          threadId: () => window.extractThreadId ? window.extractThreadId('current') : null,
          selectedThreads: () => window.getSelectedThreadIds ? window.getSelectedThreadIds() : []
        }
      },
      instantly: {
        name: 'Instantly',
        selectors: {
          replyBox: 'div[contenteditable="true"], textarea.reply-input, div.message-composer',
          threadContainer: '.conversation-message, .message-item',
          emailSender: '.sender-name, .from-email',
          emailSubject: '.subject-line, .conversation-subject',
          composeButton: '.reply-button, .compose-button',
          conversationList: '.conversation-item, .thread-item'
        },
        extractors: {
          threadId: () => InstantlyExtractor.getCurrentThreadId(),
          selectedThreads: () => InstantlyExtractor.getSelectedThreads()
        }
      },
      plusvibe: {
        name: 'Plusvibe',
        selectors: {
          replyBox: 'div[contenteditable="true"], textarea.reply-input, .compose-input, .message-input',
          threadContainer: '.thread-container, .message-container, .conversation',
          emailSender: '.sender, .from, .email-from',
          emailSubject: '.subject, .email-subject',
          composeButton: '.reply-btn, .compose-btn, button[aria-label*="reply"]',
          conversationList: '.inbox-item, .thread-item, .conversation-item'
        },
        extractors: {
          threadId: () => PlusvibeExtractor.getCurrentThreadId(),
          selectedThreads: () => PlusvibeExtractor.getSelectedThreads()
        }
      }
    };
    
    return configs[platform] || null;
  },

  // Check if we should activate on current page
  shouldActivate() {
    const platform = this.getCurrentPlatform();
    
    if (platform === 'gmail') {
      return true; // Always active on Gmail
    } else if (platform === 'instantly') {
      // Only activate on Unibox pages
      return window.location.pathname.includes('/unibox') || 
             window.location.pathname.includes('/app/unibox');
    } else if (platform === 'plusvibe') {
      // Activate on Pipl.ai unibox/inbox pages
      return window.location.pathname.includes('/unibox') || 
             window.location.pathname.includes('/inbox');
    }
    
    return false;
  }
};

// Export for use
if (typeof module !== 'undefined' && module.exports) {
  module.exports = PlatformDetector;
}