/* 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;
  var CalendarWidget = Luxtools.CalendarWidget;

  // ============================================================
  // 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);
          }
        }
      });
  }

  function initChronologicalEventTimes() {
    var nodes = document.querySelectorAll('.luxtools-event-time[data-luxtools-start]');
    if (!nodes || nodes.length === 0) return;

    var formatter;
    try {
      formatter = new Intl.DateTimeFormat(undefined, {
        hour: '2-digit',
        minute: '2-digit'
      });
    } catch (e) {
      formatter = null;
    }

    for (var i = 0; i < nodes.length; i++) {
      var node = nodes[i];
      var raw = node.getAttribute('data-luxtools-start') || '';
      if (!raw) continue;

      var date = new Date(raw);
      if (isNaN(date.getTime())) continue;

      var label;
      if (formatter) {
        label = formatter.format(date);
      } else {
        var hh = String(date.getHours()).padStart(2, '0');
        var mm = String(date.getMinutes()).padStart(2, '0');
        label = hh + ':' + mm;
      }

      node.textContent = label;
    }
  }

  // ============================================================
  // Purge Cache Dialog
  // ============================================================
  function initPurgeCacheDialog() {
    var $link = jQuery('a.luxtools-invalidate-cache');
    if ($link.length === 0) return;

    $link.on('click.luxtools', function (e) {
      e.preventDefault();

      var href = $link.attr('href') || '';
      var lang = (window.LANG && window.LANG.plugins && window.LANG.plugins.luxtools)
        ? window.LANG.plugins.luxtools
        : {};

      var $dialog = jQuery(
        '<div>' +
        '<p>' + (lang.cache_purge_dialog_intro || 'The DokuWiki cache will always be purged. Optionally also purge the luxtools-specific caches:') + '</p>' +
        '<p><label><input type="checkbox" id="luxtools-purge-pagelinks"> <strong>' + (lang.cache_purge_pagelinks_label || 'Pagelinks') + '</strong>' +
        ' &ndash; ' + (lang.cache_purge_pagelinks_desc || 'Purges the pagelink mapping cache') + '</label></p>' +
        '<p><label><input type="checkbox" id="luxtools-purge-thumbs"> <strong>' + (lang.cache_purge_thumbs_label || 'Thumbnails') + '</strong>' +
        ' &ndash; ' + (lang.cache_purge_thumbs_desc || 'Purges all cached image thumbnails') + '</label></p>' +
        '</div>'
      );

      $dialog.dialog({
        title: lang.cache_purge_dialog_title || 'Purge Cache',
        modal: true,
        width: 420,
        buttons: [
          {
            text: lang.cache_purge_cancel || 'Cancel',
            click: function () { $dialog.dialog('close'); }
          },
          {
            text: lang.cache_purge_confirm || 'Purge Cache',
            click: function () {
              var url = href;
              if ($dialog.find('#luxtools-purge-pagelinks').prop('checked')) {
                url += '&luxtools_purge_pagelinks=1';
              }
              if ($dialog.find('#luxtools-purge-thumbs').prop('checked')) {
                url += '&luxtools_purge_thumbs=1';
              }
              $dialog.dialog('close');
              window.location.href = url;
            }
          }
        ],
        close: function () {
          jQuery(this).dialog('destroy').remove();
        }
      });
    });
  }

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