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

  var TEMPLATES = new LuigiTemplate.Cache({
    user: [
      "<a ",
        "href='#' ",
        "class='list-group-item %{css|h}' ",
        "title='Edit user \"%{name|h}\".' ",
        "data-user_id='%{user_id|h}' ",
        "data-q='%{q|h}' ",
      ">",
        "<i class='fa fa-fw %{icon|h}'></i>",
        " ",
        "%{name|h} (%{email|h})",

        "<span class='%{badge_css} badge pull-right'>",
          "%{role|h}",
        "</span>",
      "</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 = $('#users-q').val().replace(/^\s+|\s+$/g, '').toLowerCase().split(/\s+/);

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

      // show matching users
      $($.grep($('#users .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 users
      $('#users .list-group-item').removeClass('hidden');
    }
  }

  var ROLE_BADGE_CSS = {
    viewer: 'hidden',
    editor: '',
    admin:  '',
  };

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

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

    send('user/get_users').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('user', $.extend({}, row, {
          icon: active ? 'fa-user' : 'fa-user-times',
          css:  active ? '' : 'list-group-item-danger',
          q:   [row.user_id, row.user_name, row.email, row.role_name].join('  ').toLowerCase(),
          badge_css: ROLE_BADGE_CSS[row.role],
        }));
      }).join(''));

      // refresh filters
      filter();
    });

    // stop event
    return false;
  }

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

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

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

    $('#user-edit-dialog').data('user_id', user_id).modal('show');

    // stop event
    return false;
  });

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

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