/* global window, document */

(function () {
  'use strict';

  var Luxtools = window.Luxtools || (window.Luxtools = {});
  var Lightbox = Luxtools.Lightbox;
  var OpenService = Luxtools.OpenService;
  var GalleryThumbnails = Luxtools.GalleryThumbnails;
  var Scratchpads = Luxtools.Scratchpads;

  // ============================================================
  // Click Handlers
  // ============================================================
  function findOpenElement(target) {
    var el = target;
    while (el && el !== document) {
      if (el.classList && el.classList.contains('luxtools-open')) return el;
      el = el.parentNode;
    }
    return null;
  }

  function findGalleryItem(target) {
    var el = target;
    while (el && el !== document) {
      if (el.classList && el.classList.contains('luxtools-gallery-item')) return el;
      el = el.parentNode;
    }
    return null;
  }

  function onClick(event) {
    // Image gallery lightbox: intercept clicks so we don't navigate away.
    var galleryItem = findGalleryItem(event.target);
    if (galleryItem && Lightbox && Lightbox.open) {
      var gallery = galleryItem.closest ? galleryItem.closest('div.luxtools-gallery[data-luxtools-gallery="1"]') : null;
      if (gallery) {
        event.preventDefault();
        Lightbox.open(gallery, galleryItem);
        return;
      }
    }

    var el = findOpenElement(event.target);
    if (!el) return;

    // {{open>...}} renders as a link; avoid jumping to '#'.
    if (el.tagName && el.tagName.toLowerCase() === 'a') {
      event.preventDefault();
    }

    var raw = el.getAttribute('data-path') || '';
    if (!raw) return;
    if (!OpenService || !OpenService.openViaService) return;

    // Prefer local client service.
    OpenService.openViaService(el, raw)
      .catch(function (err) {
        // If the browser blocks the request before it reaches localhost (mixed-content,
        // extensions, stricter CORS handling), fall back to a no-CORS GET ping.
        if (OpenService && OpenService.pingOpenViaImage) {
          OpenService.pingOpenViaImage(el, raw);
        }

        // Fallback to old behavior (often blocked in modern browsers).
        var url = OpenService && OpenService.normalizeToFileUrl ? OpenService.normalizeToFileUrl(raw) : '';
        if (!url) return;
        console.warn('Local client service failed, falling back to file:// navigation:', err);
        try {
          window.open(url, '_blank', 'noopener');
        } catch (e) {
          try {
            window.location.href = url;
          } catch (e2) {
            console.error('Failed to open file URL:', e2);
          }
        }
      });
  }

  // ============================================================
  // Initialize
  // ============================================================
  document.addEventListener('click', onClick, false);
  document.addEventListener('DOMContentLoaded', function () {
    if (GalleryThumbnails && GalleryThumbnails.init) GalleryThumbnails.init();
  }, false);
  document.addEventListener('DOMContentLoaded', function () {
    if (Scratchpads && Scratchpads.init) Scratchpads.init();
  }, false);
})();