jQuery(function($) {
  "use strict";

  var TEMPLATES = new LuigiTemplate.Cache({
    theme: [
      "<a ",
        "href='#' ",
        "class='list-group-item' ",
        "title='View details for theme \"%{theme_name|h}\".' ",
        "data-theme_id='%{theme_id|h}' ",
        "data-q='%{q|h}' ",
      ">",
        "<i class='fa fa-fw fa-eye'></i>",
        " ",
        "%{theme_name|h} (%{theme_version|h}, %{theme_date|h})",
      "</a>",
    ],

    loading: [
      "<span class='list-group-item disabled'>",
        "<i class='fa fa-spinner fa-spin'></i>",
        " ",
        "Loading...",
      "</span>",
    ],

    error: [
      "<span class='list-group-item list-group-item-danger disabled'>",
        "<i class='fa fa-exclamation-triangle'></i>",
        " ",
        "Error: %{error|h}",
      "</span>",
    ],
  });

  function filter() {
    var qs = $('#themes-q').val().replace(/^\s+|\s+$/g, '').toLowerCase().split(/\s+/);

    if (qs.length > 0) {
      // hide all themes
      $('#themes .list-group-item').addClass('hidden');

      // show matching themes
      $($.grep($('#themes .list-group-item'), function(el) {
        var eq = $(el).data('q');

        return ($.grep(qs, function(q) {
          return eq.indexOf(q) !== -1;
        }).length == qs.length);
      })).removeClass('hidden');
    } else {
      // show all themes
      $('#themes .list-group-item').removeClass('hidden');
    }
  }

  function reload() {
    var btn = $('#themes-reload'),
        list = $('#themes');

    // show loading
    btn.toggleClass('disabled').find('.loading').toggleClass('hidden');
    list.html(TEMPLATES.run('loading'));

    send('theme/list').always(function() {
      btn.toggleClass('disabled').find('.loading').toggleClass('hidden');
      list.html('');
    }).fail(function(r) {
      var error = r.responseText;

      try {
        var data = $.parseJSON(r.responseText);
        if (data.error)
          error = data.error;
      } catch (e) {}

      list.html(TEMPLATES.run('error', {
        error: error
      }));
    }).done(function(r) {
      list.html($.map(r, function(row) {
        var active = (row.is_active == '1');

        return TEMPLATES.run('theme', $.extend({}, row, {
          q: [row.theme_id, row.theme_name, row.theme_version, row.theme_date].join('  ').toLowerCase(),
        }));
      }).join(''));

      // refresh filters
      filter();
    });

    // stop event
    return false;
  }

  $('#themes-q').on('search-update', function() {
    filter();
  });

  $('#themes').on('click', 'a.list-group-item', function() {
    var theme_id = $(this).data('theme_id');

    // update highlight
    $('#themes .active').removeClass('active');
    $(this).addClass('active');

    // TODO: show theme details dialog
    // $('#theme-edit-dialog').data('theme_id', theme_id).modal('show');

    // stop event
    return false;
  });

  $('#themes-reload').click(reload);

  // load themes
  $('#settings-tab-themes').on('show.bs.tab', function() {
    reload();
  });
});