/**
 * Share CTA functionality
 * Professional, quiet sharing mechanism
 * CSP-compliant (no inline handlers)
 */

(function() {
  'use strict';

  // Wait for DOM to be ready
  if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', initShare);
  } else {
    initShare();
  }

  function initShare() {
    // Copy link to clipboard
    const copyButtons = document.querySelectorAll('[data-action="copy-link"]');
    copyButtons.forEach(button => {
      button.addEventListener('click', async () => {
        const url = window.location.href;

        try {
          await navigator.clipboard.writeText(url);

          // Visual feedback
          const originalText = button.textContent;
          const originalClasses = button.className;

          button.textContent = 'Link Copied';
          button.className = 'bg-green-600 hover:bg-green-700 text-white px-6 py-2.5 rounded-lg font-medium transition-colors shadow-sm';

          setTimeout(() => {
            button.textContent = originalText;
            button.className = originalClasses;
          }, 2000);
        } catch (err) {
          console.error('Failed to copy link:', err);
          // Fallback: show alert with URL
          alert('Copy this link: ' + url);
        }
      });
    });

    // Email share
    const emailButtons = document.querySelectorAll('[data-action="email-share"]');
    emailButtons.forEach(button => {
      button.addEventListener('click', () => {
        const url = window.location.href;
        const subject = encodeURIComponent('Thought you might find this useful');
        const body = encodeURIComponent(
          'I thought this might be relevant to your work:\n\n' +
          'Tractatus - AI Safety Framework\n' +
          url + '\n\n' +
          'It addresses structural AI governance through architectural constraints.'
        );

        window.location.href = `mailto:?subject=${subject}&body=${body}`;
      });
    });

    // LinkedIn share
    const linkedinButtons = document.querySelectorAll('[data-action="linkedin-share"]');
    linkedinButtons.forEach(button => {
      button.addEventListener('click', () => {
        const url = encodeURIComponent(window.location.href);
        window.open(
          `https://www.linkedin.com/sharing/share-offsite/?url=${url}`,
          '_blank',
          'width=600,height=600'
        );
      });
    });
  }
})();