/**
 * Footer Component - i18n-enabled
 * Shared footer for all Tractatus pages with language persistence
 */

(function() {
  'use strict';

  class TractatusFooter {
    constructor() {
      this.init();
    }

    init() {
      // Wait for I18n to be ready before rendering
      if (window.I18n && window.I18n.translations && Object.keys(window.I18n.translations).length > 0) {
        this.render();
        this.attachEventListeners();
      } else {
        // If I18n not ready, wait for it
        const checkI18n = setInterval(() => {
          if (window.I18n && window.I18n.translations && Object.keys(window.I18n.translations).length > 0) {
            clearInterval(checkI18n);
            this.render();
            this.attachEventListeners();
          }
        }, 100);

        // Fallback timeout - render without i18n after 2 seconds
        setTimeout(() => {
          clearInterval(checkI18n);
          if (!document.querySelector('footer[role="contentinfo"]')) {
            this.render();
            this.attachEventListeners();
          }
        }, 2000);
      }
    }

    render() {
      const currentYear = new Date().getFullYear();

      // Create footer HTML with data-i18n attributes
      const footerHTML = `
        <footer class="bg-gray-900 text-gray-300 mt-16" role="contentinfo">
          <div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-12">

            <!-- Main Footer Content -->
            <div class="grid grid-cols-1 md:grid-cols-4 gap-8 mb-8">

              <!-- About -->
              <div>
                <h3 class="text-white font-semibold mb-4" data-i18n="footer.about_heading">Tractatus Framework</h3>
                <p class="text-sm text-gray-400" data-i18n="footer.about_text">
                  Architectural constraints for AI safety that preserve human agency through structural, not aspirational, enforcement.
                </p>
              </div>

              <!-- Documentation -->
              <div>
                <h3 class="text-white font-semibold mb-4" data-i18n="footer.documentation_heading">Documentation</h3>
                <ul class="space-y-2 text-sm">
                  <li><a href="/docs.html" class="hover:text-white transition" data-i18n="footer.documentation_links.framework_docs">Framework Docs</a></li>
                  <li><a href="/about.html" class="hover:text-white transition" data-i18n="footer.documentation_links.about">About</a></li>
                  <li><a href="/about/values.html" class="hover:text-white transition" data-i18n="footer.documentation_links.core_values">Core Values</a></li>
                  <li><a href="/demos/27027-demo.html" class="hover:text-white transition" data-i18n="footer.documentation_links.interactive_demo">Interactive Demo</a></li>
                </ul>
              </div>

              <!-- Support -->
              <div>
                <h3 class="text-white font-semibold mb-4" data-i18n="footer.support_heading">Support</h3>
                <ul class="space-y-2 text-sm">
                  <li><a href="/koha.html" class="hover:text-white transition" data-i18n="footer.support_links.koha">Support (Koha)</a></li>
                  <li><a href="/koha/transparency.html" class="hover:text-white transition" data-i18n="footer.support_links.transparency">Transparency</a></li>
                  <li><a href="/media-inquiry.html" class="hover:text-white transition" data-i18n="footer.support_links.media_inquiries">Media Inquiries</a></li>
                  <li><a href="/case-submission.html" class="hover:text-white transition" data-i18n="footer.support_links.submit_case">Submit Case Study</a></li>
                </ul>
              </div>

              <!-- Legal & Contact -->
              <div>
                <h3 class="text-white font-semibold mb-4" data-i18n="footer.legal_heading">Legal</h3>
                <ul class="space-y-2 text-sm">
                  <li><a href="/privacy.html" class="hover:text-white transition" data-i18n="footer.legal_links.privacy">Privacy Policy</a></li>
                  <li><a href="mailto:hello@agenticgovernance.digital" class="hover:text-white transition" data-i18n="footer.legal_links.contact">Contact Us</a></li>
                  <li><a href="https://github.com/AgenticGovernance/tractatus-framework" class="hover:text-white transition" target="_blank" rel="noopener">GitHub</a></li>
                </ul>
              </div>

            </div>

            <!-- Divider -->
            <div class="border-t border-gray-800 pt-8">

              <!-- Te Tiriti Acknowledgement -->
              <div class="mb-6">
                <p class="text-sm text-gray-400">
                  <strong class="text-gray-300" data-i18n="footer.te_tiriti_label">Te Tiriti o Waitangi:</strong>
                  <span data-i18n="footer.te_tiriti_text">We acknowledge Te Tiriti o Waitangi and our commitment to partnership, protection, and participation. This project respects Māori data sovereignty (rangatiratanga) and collective guardianship (kaitiakitanga).</span>
                </p>
              </div>

              <!-- Bottom Row -->
              <div class="flex flex-col md:flex-row justify-between items-center gap-4 text-sm">
                <p class="text-gray-400">
                  © ${currentYear} <span data-i18n="footer.copyright">John G Stroh. Licensed under</span> <a href="https://www.apache.org/licenses/LICENSE-2.0" class="text-blue-400 hover:text-blue-300 transition" target="_blank" rel="noopener"><span data-i18n="footer.license">Apache 2.0</span></a>.
                </p>
                <p class="text-gray-400" data-i18n="footer.location">
                  Made in Aotearoa New Zealand 🇳🇿
                </p>
              </div>

            </div>

          </div>
        </footer>
      `;

      // Insert footer at end of body
      const existingFooter = document.querySelector('footer[role="contentinfo"]');
      if (existingFooter) {
        existingFooter.outerHTML = footerHTML;
      } else if (document.body) {
        document.body.insertAdjacentHTML('beforeend', footerHTML);
      } else {
        // If body not ready, wait for DOM
        document.addEventListener('DOMContentLoaded', () => {
          document.body.insertAdjacentHTML('beforeend', footerHTML);
        });
      }

      // Apply translations if I18n is available
      if (window.I18n && window.I18n.applyTranslations) {
        window.I18n.applyTranslations();
      }
    }

    attachEventListeners() {
      // Listen for language changes and re-render footer
      window.addEventListener('languageChanged', (event) => {
        console.log('[Footer] Language changed to:', event.detail.language);
        this.render();
      });
    }
  }

  // Auto-initialize when DOM is ready
  if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', () => new TractatusFooter());
  } else {
    new TractatusFooter();
  }

})();