(function(global) {
  'use strict';

  global.initPreviewModal = function initPreviewModal() {
    var name, url, downloadUrl, description;
    $('.image-preview-link').off();
    $('.image-preview-link').click(function(e) {
      e.preventDefault();
      name = $(this).find('p').text();
      url = $(this).find('img').data('preview-url');
      downloadUrl = $(this).attr('href');
      description = $(this).data('description');
      openPreviewModal(name, url, downloadUrl, description);
    });
  }

  function openPreviewModal(name, url, downloadUrl, description) {
    var modal = $('#imagePreviewModal');
    $.ajax({
      url: url,
      type: 'GET',
      dataType: 'json',
      success: function(data) {
        modal.find('.modal-body img').remove();
        modal.find('.image-name').text(name);
        var link = modal.find('.image-download-link');
        link.attr('href', downloadUrl);
        link.attr('data-no-turbolink', true);
        link.attr('data-status', 'asset-present');
        modal.find('.modal-body').append($('<img>')
                                 .attr('src', data['large-preview-url'])
                                 .attr('alt', name)
                                 .click(function(ev) {
                                   ev.stopPropagation();
                                 }));
        modal.find('.modal-footer .image-description').text(description);
        modal.find('.modal-body').click(function() {
          modal.modal('hide');
        });
        modal.modal();
        $('.modal-backdrop').last().css('z-index', modal.css('z-index') - 1);
      },
      error: function(ev) {
        // TODO
      }
    });
  }
})(window);