<?php
//
// ZoneMinder web function library
// Copyright (C) 2001-2008 Philip Coombes
// 
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
// 


function xhtmlHeaders($file, $title) {
  xhtmlHeadersStart($file, $title);
  xhtmlHeadersEnd();
}

function xhtmlHeadersStart($file, $title) {
  ob_start();

  global $css;
  global $skin;
  global $view;
  global $cspNonce;
  global $basename;

  # This idea is that we always include the classic css files, 
  # and then any different skin only needs to contain things that are different.
  $baseCssPhpFile = getSkinFile('css/base/skin.css.php');
  $skinCssPhpFile = getSkinFile('css/'.$css.'/skin.css.php');

  $basename = basename($file, '.php');

?>
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title><?php echo validHtmlStr(ZM_WEB_TITLE_PREFIX) . ' - ' . validHtmlStr($title) ?></title>
<?php
if (defined('ZM_WEB_FAVICON')) {
  echo '
  <link rel="icon" type="image/ico" href="'.ZM_WEB_FAVICON.'"/>
  <link rel="shortcut icon" href="'.ZM_WEB_FAVICON.'"/>
';
} else if ( file_exists("skins/$skin/css/$css/graphics/favicon.ico") ) {
  echo "
  <link rel=\"icon\" type=\"image/ico\" href=\"skins/$skin/css/$css/graphics/favicon.ico\"/>
  <link rel=\"shortcut icon\" href=\"skins/$skin/css/$css/graphics/favicon.ico\"/>
";
} else {
  echo '
  <link rel="icon" type="image/ico" href="graphics/favicon.ico"/>
  <link rel="shortcut icon" href="graphics/favicon.ico"/>
';
}

echo output_link_if_exists(array('fonts/material-icons.woff2'), false, $param = ['global', 'preload', '  as="font" type="font/woff2" crossorigin']);
//echo output_link_if_exists(array('fonts/material-icons.woff'), false, $param = ['global', 'preload', '  as="font" type="font/woff" crossorigin']);
echo output_link_if_exists(array('css/base/material-icons.css'), false);
echo output_link_if_exists(array('fonts/fontawesome-webfont.woff2?v=4.7.0'), false, $param = ['global', 'preload font', '  as="font" type="font/woff2" crossorigin']);
echo output_script_if_exists(array(
  'js/fontfaceobserver.standalone.js',
));

?>
  <script nonce="<?php echo $cspNonce; ?>">
    const fontMaterialIcons = new FontFaceObserver("Material Icons", {weight: 400});
    fontMaterialIcons.load(null, 30000).then(function() {
      //console.log("Material Icons is loaded");
      var _style_ = document.createElement('style');
      _style_.innerHTML = `.material-icons {display: inline-block !important;}`;
       document.querySelector('head').prepend(_style_);
    }, function() {
      console.log("Material Icons is NOT loaded after 30s");
    });
  </script>
<?php

echo output_cache_busted_stylesheet_links(array(
  'css/reset.css',
  'css/font-awesome.min.css',
  'css/bootstrap.min.css',
));

?>
  <link rel="stylesheet" href="skins/classic/js/jquery-ui-1.13.2/jquery-ui.theme.min.css" type="text/css"/>
  <?php #Chosen can't be cache-busted because it loads sprites by relative path ?>
  <link rel="stylesheet" href="skins/classic/js/chosen/chosen.min.css" type="text/css"/>
<?php
  echo output_link_if_exists(array('js/noUiSlider-15.8.1/dist/nouislider.min.css?'), false, $param = ['global', 'stylesheet', '  type="text/css"/']);
  echo output_link_if_exists(array(
    'js/dateTimePicker/jquery-ui-timepicker-addon.css',
    'js/jquery-ui-1.13.2/jquery-ui.structure.min.css',
    'assets/bootstrap-table-1.24.1/bootstrap-table.min.css',
    'assets/bootstrap-table-1.24.1/extensions/page-jump-to/bootstrap-table-page-jump-to.min.css',
    'css/base/skin.css',
    'css/base/views/'.$basename.'.css',
  ), true);

  if ( $css != 'base' ) {
    echo output_link_if_exists(array(
      'css/'.$css.'/skin.css',
      'css/'.$css.'/views/'.$basename.'.css',
      'css/'.$css.'/jquery-ui-theme.css',
    ));
  }

  global $navbar_type;
  if ($navbar_type == 'left') {
    echo output_link_if_exists(array(
      '/assets/pro-sidebar-template/dist/main.css',
      '/css/base/sidebar.css',
    ));
  }

  if ( $basename == 'watch' ) {
    echo output_link_if_exists(array('/css/base/views/control.css'));
    if ( $css != 'base' )
      echo output_link_if_exists(array('/css/'.$css.'/views/control.css'));
  }
?>
  <style>
<?php
  $baseCssPhpFile = getSkinFile('css/base/skin.css.php');
  if ($baseCssPhpFile) require_once($baseCssPhpFile);
  $skinCssPhpFile = getSkinFile('css/'.$css.'/skin.css.php');
  if ($skinCssPhpFile) require_once($baseCssPhpFile);

  $baseViewCssPhpFile = getSkinFile('/css/base/views/'.$basename.'.css.php');
  if ($baseViewCssPhpFile) require_once($baseViewCssPhpFile);
  $viewCssPhpFile = getSkinFile('/css/'.$css.'/views/'.$basename.'.css.php');
  if ($viewCssPhpFile) require_once($viewCssPhpFile);
?>
  </style>
<?php
  echo ob_get_clean();
} // end function xhtmlHeadersStart( $file, $title )

function xhtmlHeadersEnd() {
  echo '</head>';
} // end function xhtmlHeaders( $file, $title )

// Outputs an opening body tag, and any additional content that should go at the very top, like warnings and error messages.
function getBodyTopHTML() {
  global $view;
  //Needed for more flexible global governance
  $classHTML = ' class="'.$view.'-page'.((defined('ZM_WEB_NAVBAR_STICKY') and ZM_WEB_NAVBAR_STICKY) ? ' sticky"' : '"');
  echo '
<body data-swipe-threshold="10" data-swipe-unit="vw" data-swipe-timeout="300"'.$classHTML.'>
<noscript>
<div style="background-color:red;color:white;font-size:x-large;">
'. validHtmlStr(ZM_WEB_TITLE) .' requires Javascript. Please enable Javascript in your browser for this site.

</div>
</noscript>
';
  global $error_message;
  if ( $error_message ) {
   echo '<div id="error">'.$error_message.'</div>';
  }
  global $navbar_type;
  if ($navbar_type == 'left') {
    getSidebarTopHTML();
  }
} // end function getBodyTopHTML

function buildMenuItem($viewItemName, $id, $itemName, $href, $icon, $classNameForTag_A = '', $subMenu = '') {
  global $view;
   /* Highlighting the active menu section */
  if ($viewItemName == 'watch') {
    $activeClass = ($view == $viewItemName && (isset($_REQUEST['cycle']) && $_REQUEST['cycle'] == "true")) ? ' active' : '';
  } else {
    $activeClass = $view == $viewItemName ? ' active' : '';
  }
  $itemName = translate($itemName);
  $result = '
            <li id="' . $id . '" class="menu-item '.$activeClass.'">
              <a href="' . $href . '" class="' . $classNameForTag_A . '">
                <span class="menu-icon"><i class="material-icons">' . $icon . '</i></span>
                <span class="menu-title">'.$itemName.'</span>
              </a>
            </li>'.PHP_EOL;

  return $result;
}

function buildSidebarMenu() {
  global $view;
  global $user;
  if ( $user and $user->Username() ) {
  $menuForAuthUser = '
            <li class="menu-header"><span> GENERAL </span></li> ' .
    getConsoleHTML($forLeftBar = true) .
    getMontageHTML($view, $forLeftBar = true) .
    getCycleHTML($view, $forLeftBar = true) .
    getMontageReviewHTML($view, $forLeftBar = true) .
    getEventsHTML($view, $forLeftBar = true) .
    getOptionsHTML($forLeftBar = true) .
    getLogHTML($forLeftBar = true) .
    getDevicesHTML($forLeftBar = true) .
    getGroupsHTML($view, $forLeftBar = true) .
    getFilterHTML($view, $forLeftBar = true) .
    getSnapshotsHTML($view, $forLeftBar = true) .
    getReportsHTML($view, $forLeftBar = true) .
    getRprtEvntAuditHTML($view, $forLeftBar = true) .
    getMapHTML($view, $forLeftBar = true) .
    getAdditionalLinksHTML($view, $forLeftBar = true)
  ;
  } else { // USER IS NOT AUTHORIZED!
    $menuForAuthUser = '';
  }
  $menu = '
        <nav class="sidebar-main-menu open-current-submenu">
          <ul>
          ' . $menuForAuthUser;
  if (ZM_HOME_ABOUT) {
  $menu .= '
            <li class="menu-header" style="padding-top: 20px"><span> OTHER </span></li>
            <li class="menu-item">
              <a href="http://zoneminder.com/" target="_blank">
                <span class="menu-icon">
                  <i class="material-icons">videocam</i>
               </span>
                <span class="menu-title">' . translate("ZoneMinder") . '</span>
                <span class="menu-suffix">
                  <span class="badge secondary"><i class="material-icons md-14">thumb_up</i></span>
                </span>
              </a>
            </li>
            <li class="menu-item">
              <a href="http://zoneminder.readthedocs.org/en/latest/" target="_blank">
                <span class="menu-icon">
                  <i class="material-icons">description</i>
                </span>
                <span class="menu-title">' . translate("Documentation") . '</span>
                <!--<span class="menu-suffix">
                  <span class="badge secondary">Beta</span>
                </span>-->
              </a>
            </li>
            <li class="menu-item">
              <a href="https://zmninja.zoneminder.com/" target="_blank">
                <span class="menu-icon">
                  <i class="material-icons">face_5</i>
                </span>
                <span class="menu-title">' . translate("zmNinja") . '</span>
              </a>
            </li>
            <li class="menu-item">
              <a href="https://wiki.zoneminder.com/" target="_blank">
                <span class="menu-icon">
                  <i class="material-icons">article</i>
                </span>
                <span class="menu-title">' . translate("Wiki") . '</span>
              </a>
            </li>
            <li class="menu-item">
              <a href="https://forums.zoneminder.com/" target="_blank">
                <span class="menu-icon">
                  <i class="material-icons">forum</i>
                </span>
                <span class="menu-title">' . translate("Forums") . '</span>
              </a>
            </li>
            <li class="menu-item">
              <a href="https://zoneminder-chat.slack.com/" target="_blank">
                <span class="menu-icon">
                  <i class="material-icons">chat</i>
                </span>
                <span class="menu-title">' . translate("Slack") . '</span>
              </a>
            </li>
';
  }
  $menu .= '
          </ul>
        </nav>
  ';
  return $menu;
}

function getSidebarTopHTML() {
  global $skin;
  global $user;
  global $running;

  $blockExtruder = '
<div id="extruderLeft">
  <div id="contextExtruderLeft" class="text">
    <! -- Pull-out panel FILLED VIA JS -->
  </div>
</div>
';

  $block = '
<div class="layout-main has-sidebar fixed-sidebar fixed-header">
  <aside id="sidebarMain" class="sidebar-main break-point-lg has-bg-image '. (( isset($_COOKIE['zmSidebarMainCollapse']) and $_COOKIE["zmSidebarMainCollapse"] === 'true' ) ? "collapsed" : "") . '">
' . $blockExtruder . '
    <a id="btn-collapse" class="sidebar-collapser"><i class="material-icons">chevron_left</i></a>
    <div class="image-wrapper">
      <img src="skins/'.$skin.'/assets/pro-sidebar-template/assets/images/sidebar-bg.jpg" alt="sidebar background" />
    </div>
    <div class="sidebar-layout">
      <div class="sidebar-header">
        <div class="pro-sidebar-logo">
          <div>ZM</div>
          <h5>ZoneMinder</h5>
        </div>
      </div>
      <!-- End of header, before scrolling menu -->
      <div id="menuControlModule" class="sidebar-post-header">
        <!-- FILLED VIA JS -->
      </div>
      <!-- Start of scrolling menu -->
      <div class="sidebar-content">
' . buildSidebarMenu() . '
      </div>
      <div class="sidebar-footer hidden-for-collapsed">
        <div class="footer-box">
          <div>
' . getAccountCircleHTML($skin, $user, $forLeftBar = true) . '
          </div>
          <div style="padding: 0 10px">
            <span style="display: block; margin-bottom: 10px">
              <ul id="versionSidebar">
' . getZMVersionHTML() . '
              </ul>
            </span>
            <ul id="statusSidebar">
' . getStatusBtnHTML(runtimeStatus($running)) . '
            </ul>
          </div>
        </div>
      </div>
    </div>
  </aside>
  <div id="overlay" class="overlay"></div>
  <div class="content-main">
';
echo $block;
} // end function getSidebarTopHTML

function getSidebarBottomHTML() {
  global $skin;
  $block = '
    <div class="overlay"></div>
  </div> <!-- class="content-main" -->
</div> <!-- class="layout-main has-sidebar fixed-sidebar fixed-header" -->
<style>

</style>
';
echo $block;
} // end function getSidebarBottomHTML

function getNavBarHTML() {
  # Provide a facility to turn off the headers if you put navbar=0 into the url
  if ( isset($_REQUEST['navbar']) and $_REQUEST['navbar'] == '0' )
    return '';

  global $running;
  global $user;
  global $bandwidth_options;
  global $view;
  global $skin;
  global $navbar_type;

  ob_start();
  
  if ( $navbar_type == 'normal' || $navbar_type == 'left') {
    echo getNormalNavBarHTML($running, $user, $bandwidth_options, $view, $skin);
  } else {
    echo getCollapsedNavBarHTML($running, $user, $bandwidth_options, $view, $skin);
  }

  return ob_get_clean();
}

function output_link($files) {
  foreach ( $files as $file ) {
    $html[] = '<link rel="stylesheet" href="'.getSkinFile($file).'" type="text/css"/>';
  }
  $html[] = ''; // So we ge a trailing \n
  return implode(PHP_EOL, $html);
}

function output_link_if_exists($files, $cache_bust=true, $param=false) {
  global $skin;
  $html = array();
  if ($param) {
    $global_file = $param[0]; // The file is global or from a skin
    $rel = '"'.$param[1].'"';
    $suffix = $param[2];
  } else {
    $global_file = false;
    $rel = '"stylesheet"';
    $suffix = ' type="text/css"';
  }
  foreach ( $files as $file ) {
    // The file name can be for example "fontawesome-webfont.woff2?v=4.7.0". We need to select what is before the "?"
    $file_ = ($global_file && file_exists(explode('?', $file)[0])) ? $file : getSkinFile($file);
    if ($file_) {
      if ( $cache_bust ) {
        $html[] = '<link rel='.$rel.' href="'.cache_bust($file_).'" '.$suffix.'/>';
      } else  {
        $html[] = '<link rel='.$rel.' href="'.$file_.'" '.$suffix.'/>';
      }
    }
  }
  $html[] = ''; // So we ge a trailing \n
  return implode(PHP_EOL, $html);
}

function output_script($files, $cache_bust=true, $must_exist=true) {
  global $skin;
  $html = array();
  foreach ( $files as $file ) {
    $found = false;
    if ( file_exists('skins/'.$skin.'/'.$file) ) {
      $found = true;
      if ( $cache_bust ) {
        $html[] = '<script src="'.cache_bust('skins/'.$skin.'/'.$file).'"></script>';
      } else {
        $html[] = '<script src="skins/'.$skin.'/'.$file.'"></script>';
      }
    } else if ( file_exists($file) ) {
      $found = true;
      if ( $cache_bust ) {
        $html[] = '<script src="'.cache_bust($file).'"></script>';
      } else {
        $html[] = '<script src="'.$file.'"></script>';
      }
    }
    if (!$found and $must_exist) {
      ZM\Error("Script $file not found");
    }
  }
  $html[] = ''; // So we ge a trailing \n
  return implode(PHP_EOL, $html);
}

function output_script_if_exists($files, $cache_bust=true) {
  return output_script($files, $cache_bust, false);
}

function output_cache_busted_stylesheet_links($files) {
  $html = array();
  foreach ( $files as $file ) {
    $html[] = '<link rel="stylesheet" href="'.cache_bust($file).'" type="text/css"/>';
  }
  if ( ! count($html) ) {
    ZM\Warning("No files found for $files");
  }
  $html[] = ''; // So we ge a trailing \n
  return implode(PHP_EOL, $html);
}

//
// The legacy navigation bar that collapses into a pulldown menu on small screens.
//
function getNormalNavBarHTML($running, $user, $bandwidth_options, $view, $skin) {
  $status = runtimeStatus($running);
?>
<div class="container-fluid" id="navbar-container">
  <div class="navbar-brand">
    <?php echo getNavBrandHTML() ?>
  </div>
  <div class="navbars">
    <nav class="navbar navbar-expand-md flex-row" id="navbar-one">
    <!-- the Navigation Bar Hamburger Button   -->
<!--
    <div class="nav justify-content-end flex-grow-1">
-->
<?php 
  if ((!ZM_OPT_USE_AUTH) or $user) {
?>
      <button type="button" class="navbar-toggler" data-toggle="collapse" data-target="#main-header-nav" aria-expanded="false">
        <span class="sr-only">Toggle navigation</span>
        <span class="navbar-toggler-icon">
          <i class="material-icons md-20">menu</i>
        </span>
      </button>
      <button id="flipNarrow" type="button" class="navbar-toggler" data-toggle="collapse" data-target="#navbar-two" aria-expanded="true">
        <span class="sr-only">Toggle guages</span>
        <span class="navbar-toggler-icon">
          <i class="material-icons md-20">monitor</i>
        </span>
      </button>
<!--
   </div>
-->
    <div class="collapse navbar-collapse" id="main-header-nav">
<?php

  // *** Build the navigation bar menu items ***
        echo '<ul class="nav navbar-nav align-self-start justify-content-center">';
          echo getConsoleHTML();
          echo getOptionsHTML();
          echo getLogHTML();
          echo getDevicesHTML();
          echo getGroupsHTML($view);
          echo getFilterHTML($view);
          echo getCycleHTML($view);
          echo getMontageHTML($view);
          echo getMontageReviewHTML($view);
          echo getSnapshotsHTML($view);
          echo getReportsHTML($view);
          echo getRprtEvntAuditHTML($view);
          echo getMapHTML($view);
          echo getAdditionalLinksHTML($view);
          echo getHeaderFlipHTML();
        echo '</ul></div><div id="accountstatus">';
        echo '<ul class="nav navbar-nav justify-content-end align-self-start flex-grow-1">';
          echo getAccountCircleHTML($skin, $user);
          echo getStatusBtnHTML($status);
        echo '</ul>
    </div>
      ';
?>
  </nav><!-- End First Navbar -->

  <nav class="navbar navbar-expand-md justify-content-center" id="navbar-two"
<?php echo ( isset($_COOKIE['zmHeaderFlip']) and $_COOKIE['zmHeaderFlip'] == 'down' ) ? 'style="display:none;"' : '' ?>
>
    <div class="container-fluid" id="panel">
<?php

// *** Build the statistics shown on the navigation bar ***
global $navbar_type;
if ($navbar_type == 'left') {
  echo buildStatisticsBar($forLeftBar = true);
} else {
  echo buildStatisticsBar($forLeftBar = false);
}
?>
    </div><!-- End Collapsible Panel -->
  </nav><!-- End Second Navbar -->
  
<?php
  } // end if (!ZM_OPT_USE_AUTH) or $user )
  echo getConsoleBannerHTML();
?>
  </div><!--navbars-->
</div><!--navbar continaer-->
<?php
} // end function getNormalNavBarHTML()

function buildStatisticsBar($forLeftBar = false) {
// *** Build the statistics shown on the navigation bar ***
  global $bandwidth_options;
  global $user;
  $block = '';
  if ($forLeftBar) {
    // Mobile menu hamburger button
    $block .= '
<div style="left: 5px; top: 10px; position: absolute;">
  <a id="btn-toggle" href="#" class="sidebar-toggler break-point-lg">
    <i class="material-icons">menu</i>
  </a>
</div>
    ';
  }

  $block .= '
    <div id="reload" class="container-fluid">
      <ul id="Bandwidth" class="navbar-nav justify-content-start">
        ' . getBandwidthHTML($bandwidth_options, $user) .'
      </ul>

      <ul class="navbar-nav list-inline justify-content-center">
        '.
        getSysLoadHTML().
        getCpuUsageHTML().
        getDbConHTML().
        getStorageHTML().
        getRamHTML()
        .'
      </ul>

      <ul id="Version" class="nav navbar-nav justify-content-end">
        ' . getZMVersionHTML() . '
      </ul>
    </div>
  ';
  return $block;
}

//
// A new, slimmer navigation bar, permanently collapsed into a dropdown
//
function getCollapsedNavBarHTML($running, $user, $bandwidth_options, $view, $skin) {
  $status = runtimeStatus($running);
  ?>
  <div class="container-fluid" id="navbar-container">
    <nav class="navbar flex-nowrap">
      <div class="navbar-brand">
        <?php echo getNavBrandHTML() ?>
      </div>
      <nav class="navbar navbar-expand-md">
<?php
  // *** Build the statistics shown on the navigation bar ***
  if ( (!ZM_OPT_USE_AUTH) or $user ) {
?>
        <div id="reload" class="collapse navbar-collapse">
          <ul id="Version" class="navbar-nav">
            <?php echo getZMVersionHTML() ?>
          </ul>
          <ul id="Bandwidth" class="navbar-nav">
            <?php echo getBandwidthHTML($bandwidth_options, $user) ?>
          </ul>

          <ul class="nav navbar-nav list-group">
            <?php
            echo getSysLoadHTML();
            echo getCpuUsageHTML();
            echo getDbConHTML();
            echo getStorageHTML();
            echo getRamHTML();
            #echo getShmHTML();
            echo getLogIconHTML();
            ?>
          </ul>

        </div>
<?php 
  } // end if (!ZM_OPT_USE_AUTH) or $user )
?> 
      </nav>
<?php
  global $navbar_type;
  if ($navbar_type == 'collapsed') {
?>
      <ul class="list-group list-group-horizontal ml-auto">
        <?php
        echo getAccountCircleHTML($skin, $user);
        echo getStatusBtnHTML($status);
        ?>
      </ul>

    <!-- the Navigation Bar Hamburger Button   -->
    <?php if ( (!ZM_OPT_USE_AUTH) or $user ) { ?>
      <button type="button" class="navbar-toggler" data-toggle="collapse" data-target="#main-header-nav" aria-haspopup="true" aria-expanded="false">
        <span class="sr-only">Toggle navigation</span>
        <span class="navbar-toggler-icon">
          <i class="material-icons md-20">menu</i>
        </span>
      </button>
    <?php } ?>

      <div style="background-color:#485460" class="dropdown-menu dropdown-menu-right px-3" id="main-header-nav">
      <?php
      if ( $user and $user->Username() ) {
          echo '<ul class="navbar-nav">';
            echo getConsoleHTML();
            echo getOptionsHTML();
            echo getLogHTML();
            echo getDevicesHTML();
            echo getGroupsHTML($view);
            echo getFilterHTML($view);
            echo getCycleHTML($view);
            echo getMontageHTML($view);
            echo getMontageReviewHTML($view);
            echo getSnapshotsHTML($view);
            echo getReportsHTML($view);
            echo getRprtEvntAuditHTML($view);
            echo getMapHTML($view);
            echo getAdditionalLinksHTML($view);
          echo '</ul>';
      }
      ?>
      </div>
<?php
  } // end if collapsed vs left
?>
    </nav><!-- End First Navbar -->
    <?php echo getConsoleBannerHTML() ?>
  </div>
  
  <?php
} // End function getCollapsedNavBarHTML

// Returns the html representing the current cpu Usage Percent
function getCpuUsageHTML() {
  $result = '';
  if ( !canView('System') ) return $result;
  global $thisServer;
  if ($thisServer) {
    $thisServer->ReadStats();

    $result .= '<li id="getCpuUsageHTML" class="CpuUsage nav-item mx-2">'.PHP_EOL;
    $result .= '&nbsp;'.translate('Cpu').': '.number_format($thisServer->CpuUsagePercent, 1, '.', '').'%'.PHP_EOL;
    $result .= '</li>'.PHP_EOL;
  }
  return $result;
}

// Returns the html representing the current unix style system load
function getSysLoadHTML() {
  $result = '';
  if ( !canView('System') ) return $result;
  global $thisServer;
  if ($thisServer) {
    $thisServer->ReadStats();

    $result .= '<li id="getSysLoadHTML" class="Load nav-item mx-2">';
    $result .= '<i class="material-icons md-18">trending_up</i>';
    $result .= '&nbsp;'.translate('Load').': '.number_format($thisServer->CpuLoad, 2, '.', '');
    $result .= '</li>'.PHP_EOL;
  } 
  return $result;
}

// Returns the html representing the current number of connections made to the database
function getDbConHTML() {
  $result = '';
  if ( !canView('System') ) return $result;
  $connections = dbFetchOne('SHOW status WHERE variable_name=\'threads_connected\'', 'Value');
  $max_connections = dbFetchOne('SHOW variables WHERE variable_name=\'max_connections\'', 'Value');
  $percent_used = $max_connections ? 100 * $connections / $max_connections : 100;
  $class = ( $percent_used > 90 ) ? ' text-warning' : '';

  $result .= '<li id="getDbConHTML" class="nav-item dropdown mx-2' .$class. '">'.PHP_EOL;
  $result .= '<i class="material-icons md-18 mr-1">storage</i>'.PHP_EOL;
  $result .= translate('DB'). ': ' .$connections. '/' .$max_connections.PHP_EOL;   
  $result .= '</li>'.PHP_EOL;

  return $result;
}

// Returns an html dropdown showing capacity of all storage areas
function getStorageHTML() {
  $result = '';
  if ( !canView('System') ) return $result;

  $func = function($S, $class='') {
    if ( $S->disk_usage_percent() > 98 ) {
      $class .= 'text-danger';
    } else if ( $S->disk_usage_percent() > 95 ) {
      $class .= 'text-warning';
    }
    $title = human_filesize($S->disk_used_space()) . ' of ' . human_filesize($S->disk_total_space()). 
      ( ( $S->disk_used_space() != $S->event_disk_space() ) ? ' ' .human_filesize($S->event_disk_space()) . ' used by events' : '' );
    return '<a class="'.$class.'" title="'.$title.'" href="?view=options&amp;tab=storage">'.validHtmlStr($S->Name()) . ': ' . $S->disk_usage_percent().'%' . '</a>';
  };

  $storage_areas = ZM\Storage::find(array('Enabled'=>true));
  $num_storage_areas = count($storage_areas);  
  
  $full_warning = 0;
  $full_error = 0;
  foreach ( $storage_areas as $area ) {  
    if ( $area->disk_usage_percent() > 98 ) { $full_error++; continue; }
    if ( $area->disk_usage_percent() > 95 ) $full_warning++;
  } 
  
  $class = '';
  if ( $full_error ) {
    $class = 'text-danger'; 
  } else if ( $full_warning ) {
    $class = 'text-warning'; 
  }
  
  if (count($storage_areas) <= 2) {
    $result .= '<li id="getStorageHTML" class="nav-item mx-2">'.PHP_EOL;
    foreach ( $storage_areas as $area ) {  
      $result .= $func($area).PHP_EOL;
    } 
    $result .= '</li>'.PHP_EOL;
  } else {
    $result .= '<li id="getStorageHTML" class="nav-item dropdown mx-2">'.PHP_EOL;
    $result .= '<a class="dropdown-toggle mr-2 '.$class.'" href="#" id="dropdown_storage" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"><i class="material-icons md-18 mr-1">folder_shared</i>Storage</a>'.PHP_EOL;
    $result .= '<div class="dropdown-menu" aria-labelledby="dropdown_storage">'.PHP_EOL;
    
    foreach ( $storage_areas as $area ) {  
      $result .= $func($area, 'dropdown-item ').PHP_EOL;
    } 
    $result .= '</div>'.PHP_EOL;
    $result .= '</li>'.PHP_EOL;
  }

  return $result;
}

function getRamHTML() {
  $result = '';
  if ( !canView('System') ) return $result;
  if (file_exists('/proc')) {
    $contents = file_get_contents('/proc/meminfo');
    preg_match_all('/(\w+):\s+(\d+)\s/', $contents, $matches);
    $meminfo = array_combine($matches[1], array_map(function($v){return 1024*$v;}, $matches[2]));
    $mem_used = $meminfo['MemTotal'] - $meminfo['MemFree'] - $meminfo['Buffers'] - $meminfo['Cached'];
    $mem_used_percent = (int)(100*$mem_used/$meminfo['MemTotal']);
    $used_class = '';
    if ($mem_used_percent > 95) {
      $used_class = 'text-danger';
    } else if ($mem_used_percent > 90) {
      $used_class = 'text-warning';
    }
    $result .= ' <li id="getRamHTML" class="nav-item dropdown mx-2">'.
      '<span class="'.$used_class.'" title="' .human_filesize($mem_used). ' of ' .human_filesize($meminfo['MemTotal']). '">'.translate('Memory').': '.$mem_used_percent.'%</span> ';

    if ($meminfo['SwapTotal']) {
      $swap_used = $meminfo['SwapTotal'] - $meminfo['SwapFree'];
      $swap_used_percent = (int)(100*$swap_used/$meminfo['SwapTotal']);
      $swap_class = '';
      if ($swap_used_percent > 95) {
        $swap_class = 'text-danger';
      } else if ($swap_used_percent > 90) {
        $swap_class = 'text-warning';
      }
      $result .= '<span class="'.$swap_class.'" title="' .human_filesize($swap_used). ' of ' .human_filesize($meminfo['SwapTotal']). '">'.translate('Swap').': '.$swap_used_percent.'%</span> ';
    } # end if SwapTotal
    $result .= '</li>'.PHP_EOL;
  }

  return $result;
}

// Returns the html representing the current capacity of mapped memory filesystem (usually /dev/shm)
function getShmHTML() {
  $result = '';
  if ( !canView('System') ) return $result;
  
  $shm_percent = getDiskPercent(ZM_PATH_MAP);
  $shm_total_space = disk_total_space(ZM_PATH_MAP);
  $shm_used = $shm_total_space - disk_free_space(ZM_PATH_MAP);

  $class = '';
  if ( $shm_percent > 98 ) {
    $class = 'text-danger';
  } else if ( $shm_percent > 90 ) {
    $class = 'text-warning';
  }
  $result .= ' <li id="getShmHTML" class="nav-item dropdown mx-2' .$class. '" title="' .human_filesize($shm_used). ' of ' .human_filesize($shm_total_space). '">' .ZM_PATH_MAP. ': '.$shm_percent.'%</li>'.PHP_EOL;
  
  return $result;
}

// Returns the html representing the optional web console banner text
function getConsoleBannerHTML() {
  $result = '';

  if ( defined('ZM_WEB_CONSOLE_BANNER') and ZM_WEB_CONSOLE_BANNER != '' ) {
    $result .= '<nav class="navbar navbar-expand-md justify-content-center" id="navbar-three">';
    $result .= '<h2 id="getConsoleBannerHTML">'.validHtmlStr(ZM_WEB_CONSOLE_BANNER).'</h2>';
    $result .= '</nav>';
  }
  return $result;
}

// Returns the html representing the current high,medium,low bandwidth setting
function getBandwidthHTML($bandwidth_options, $user) {

  # Limit available options to what are available in user
  if ( $user && !empty($user->MaxBandwidth()) ) {
    if ( $user->MaxBandwidth() == 'low' ) {
      unset($bandwidth_options['high']);
      unset($bandwidth_options['medium']);
    } else if ( $user->MaxBandwidth() == 'medium' ) {
      unset($bandwidth_options['high']);
    }
  }

  $result = '';
  if (count($bandwidth_options) > 1) {
    $result .= '<li id="getBandwidthHTML" class="nav-item dropdown mx-2">'.PHP_EOL;
    $result .= '<a class="dropdown-toggle mr-2" href="#" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false" id="dropdown_bandwidth"><i class="material-icons md-18 mr-1">network_check</i>'.translate($bandwidth_options[$_COOKIE['zmBandwidth']]).'</a>'.PHP_EOL;

    $result .= '<div class="dropdown-menu" aria-labelledby="dropdown_bandwidth">'.PHP_EOL;  
    if ( isset($bandwidth_options['high']) )
      $result .= '<a data-pdsa-dropdown-val="high" class="dropdown-item bwselect" href="#">' .translate('High'). '</a>'.PHP_EOL;
    if ( isset($bandwidth_options['medium']) )
      $result .= '<a data-pdsa-dropdown-val="medium" class="dropdown-item bwselect" href="#">' .translate('Medium'). '</a>'.PHP_EOL;
    # low is theoretically always available
    $result .= '<a data-pdsa-dropdown-val="low" class="dropdown-item bwselect" href="#">' .translate('Low'). '</a>'.PHP_EOL;    
    $result .= '</div>'.PHP_EOL;

    $result .= '</li>'.PHP_EOL;
  }
    
  return $result;
}

// Returns the html representing the version of ZoneMinder
function getZMVersionHTML() {
  $result = '';
  if ( !canView('System') ) return $result;
  $content = '';
  
  if ( ZM_DYN_DB_VERSION && (ZM_DYN_DB_VERSION != ZM_VERSION) ) {  // Must upgrade before proceeding
    $class = 'text-danger';
    $tt_text = translate('RunLocalUpdate');
    $content = 'v'.ZM_VERSION.PHP_EOL;
  } else if ( verNum( ZM_DYN_LAST_VERSION ) <= verNum( ZM_VERSION ) || !ZM_CHECK_FOR_UPDATES || ZM_DYN_NEXT_REMINDER > time() ) { // No update needed
    $class = ''; // Don't change the text color under normal conditions
    $tt_text = translate('UpdateNotNecessary');
    $content = 'v'.ZM_VERSION.PHP_EOL;
  } else if ( canEdit('System') ) { // An update is available and the user is an administrator
    $class = 'text-warning';
    $tt_text = translate('UpdateAvailable');
    $content = '<a class="dropdown ' .$class. '" data-toggle="dropdown" href="#" id="dropdown_reminder">v' .ZM_VERSION. '</a>'.PHP_EOL;
    $content .= '<div class="dropdown-menu" aria-labelledby="dropdown_reminder">'.PHP_EOL;  
      $content .= '<h6 class="dropdown-header">' .translate('UpdateAvailable'). '</h6>'.PHP_EOL;
      $content .= '<a class="dropdown-item" data-pdsa-dropdown-val="ignore" href="#">' .translate('VersionIgnore'). '</a>'.PHP_EOL;
      $content .= '<a class="dropdown-item" data-pdsa-dropdown-val="hour" href="#">' .translate('VersionRemindHour'). '</a>'.PHP_EOL;
      $content .= '<a class="dropdown-item" data-pdsa-dropdown-val="day" href="#">' .translate('VersionRemindDay'). '</a>'.PHP_EOL;
      $content .= '<a class="dropdown-item" data-pdsa-dropdown-val="week" href="#">' .translate('VersionRemindWeek'). '</a>'.PHP_EOL;
      $content .= '<a class="dropdown-item" data-pdsa-dropdown-val="month" href="#">' .translate('VersionRemindMonth'). '</a>'.PHP_EOL;
      $content .= '<a class="dropdown-item" data-pdsa-dropdown-val="never" href="#">' .translate('VersionRemindNever'). '</a>'.PHP_EOL;  
    $content .= '</div>'.PHP_EOL;
  } else { // An update is available and the user is NOT an administrator
    $class = 'text-warning';
    $tt_text = translate('UpdateAvailable');
    $content = 'v'.ZM_VERSION.PHP_EOL;
  }

  $result .= '<li id="getZMVersionHTML" class="nav-item dropdown ' .$class. '" data-placement="bottom" title="' .$tt_text. '">'.PHP_EOL; 
  $result .= $content;
  $result .= '</li>'.PHP_EOL;

  return $result;
}

// Returns the html representing the ZoneMinder logo and about menu
function getNavBrandHTML() {
  $result = '';

  if ( ZM_HOME_ABOUT ) {
  $result .= '<a id="getNavBrandHTML" class="dropdown" data-toggle="dropdown" href="#">ZoneMinder</a>'.PHP_EOL;
    $result .= '<ul style="background-color:#485460" class="dropdown-menu">'.PHP_EOL;
      $result .= '<li><a class="dropdown-item" href="https://zoneminder.com/" target="_blank">ZoneMinder</a></li>'.PHP_EOL;
      $result .= '<li><a class="dropdown-item" href="https://zoneminder.readthedocs.io/en/stable/" target="_blank">Documentation</a></li>'.PHP_EOL;
      $result .= '<li><a class="dropdown-item" href="https://forums.zoneminder.com/" target="_blank">Support</a></li>'.PHP_EOL;
    $result .= '</ul>'.PHP_EOL;
  } else {
  $result .= '<a id="getNavBrandHTML" href="' .validHtmlStr(ZM_HOME_URL). '" target="' .validHtmlStr(ZM_WEB_TITLE). '">' .ZM_HOME_CONTENT. '</a>'.PHP_EOL;
  }

  return $result;
}

// Returns the html representing the Console menu item
function getConsoleHTML($forLeftBar = false) {
  global $user;
  $result = '';

  if (count($user->viewableMonitorIds()) or !ZM\Monitor::find_one()) {
    if ($forLeftBar) {
      $result .= buildMenuItem(
        $viewItemName = 'console',
        $id = 'getConsoleHTML',
        $itemName = 'Console',
        $href = '?view=console',
        $icon = 'dashboard',
        $classNameForTag_A = '',
        $subMenu = ''
      );
    } else {
      $result .= '<li id="getConsoleHTML" class="nav-item"><a class="nav-link" href="?view=console">'.translate('Console').'</a></li>'.PHP_EOL;
    }
  }

  return $result;
}

// Returns the html representing the Options menu item
function getOptionsHTML($forLeftBar = false) {
  global $zmMenu;
  $result = '';

  // Sorting order of the "Options" submenu items. If a submenu item is in the DB but is not here, it will be automatically added to the end of the list.
  $zmMenu::buildSubMenuOptions($categoryDisplayOrder = [
    'display',
    'system',
    'auth',
    'config',
    'dnsmasq',
    'API',
    'servers',
    'storage',
    'web',
    'images',
    'logging',
    'network',
    'mail',
    'upload',
    'x10',
    'highband',
    'medband',
    'lowband',
    'users',
    'groups',
    'control',
    'privacy',
    'MQTT',
    'telemetry',
    'version'
  ]);

  if ( canView('System') ) {
    if ($forLeftBar) {
      global $view;

      $view_ = 'options';
      //$tab = isset($_REQUEST['tab']) ? validHtmlStr($_REQUEST['tab']) : 'system';
      $tab = isset($_REQUEST['tab']) ? validHtmlStr($_REQUEST['tab']) : '';

      $subMenuOptions = '
      <div class="sub-menu-list">
        <ul>
      ';
      foreach ($zmMenu::$submenuOptionsItems as $name=>$value) {
        $subMenuOptions .= '
          <li class="menu-item '.$name.' '.($tab == $name ? ' active' : '').'">
            <a href="?view='.$view_.'&amp;tab='.$name.'">
              <span class="menu-title">'.$value.'</span>
            </a>
          </li>'.PHP_EOL;
      }
      $subMenuOptions .= '
        </ul>
      </div>
      ';

      $result .= '
<li id="getOptionsHTML" class="menu-item sub-menu '.($view == "options" ? ' open' : '').'">
  <a href="#<!--?view='.$view_.'&amp;tab=system-->">
    <span class="menu-icon"><i class="material-icons">settings</i></span>
    <span class="menu-title">'.translate('Options').'</span>
  </a>
' . $subMenuOptions . '
</li>'.PHP_EOL;
    } else {
      $result .= '<li id="getOptionsHTML" class="nav-item"><a class="nav-link" href="?view=options">'.translate('Options').'</a></li>'.PHP_EOL;
    }
  }

  return $result;
}

// Returns the html representing the Log menu item
function getLogHTML($forLeftBar = false) {
  $result = '';
  
  if ( canView('System') ) {
    if ( ZM\logToDatabase() > ZM\Logger::NOLOG ) {
      $logstate = logState();
      $class = ($logstate == 'ok') ? 'text-success' : ($logstate == 'alert' ? 'text-warning' : (($logstate == 'alarm' ? 'text-danger' : '')));
      if ($forLeftBar) {
        $result .= buildMenuItem(
          $viewItemName = 'log',
          $id = 'getLogHTML',
          $itemName = 'Log',
          $href = '?view=log',
          $icon = 'notification_important',
          $classNameForTag_A = $class,
          $subMenu = ''
        );
      } else {
        $result .= '<li id="getLogHTML" class="nav-item"><a class="nav-link '.$class.'" href="?view=log">'.translate('Log').'</a></li>'.PHP_EOL;
      }
    }
  }
  
  return $result;
}

// Returns the html representing the log icon
function getLogIconHTML() {
  $result = '';

  if ( canView('System') ) {
    if ( ZM\logToDatabase() > ZM\Logger::NOLOG ) { 
      $logstate = logState();
      $class = ($logstate == 'ok') ? 'text-success' : ($logstate == 'alert' ? 'text-warning' : (($logstate == 'alarm' ? 'text-danger' : '')));
      $result .= '<li id="getLogIconHTML" class="nav-item">'.
        makeLink('?view=log', '<span class="mx-1 ' .$class. '"><i class="material-icons md-18">report</i>'.translate('Log').'</span>').
        '</li>'.PHP_EOL;
    }
  }

  return $result;
}

// Returns the html representing the X10 Devices menu item
function getDevicesHTML($forLeftBar = false) {
  $result = '';

  if ( ZM_OPT_X10 && canView('Devices') ) {
    if ($forLeftBar) {
      $result .= buildMenuItem(
        $viewItemName = 'devices',
        $id = 'getDevicesHTML',
        $itemName = 'Devices',
        $href = '?view=devices',
        $icon = 'devices_other',
        $classNameForTag_A = '',
        $subMenu = ''
      );
    } else {
      $result .= '<li id="getDevicesHTML" class="nav-item"><a class="nav-link" href="?view=devices">'.translate('Devices').'</a></li>'.PHP_EOL;
    }
  }

  return $result;
}

// Returns the html representing the Groups menu item
function getGroupsHTML($view, $forLeftBar = false) {
  $result = '';
  if ( !canView('Groups') ) return $result;

  $class = $view == 'groups' ? ' selected' : '';
  if ($forLeftBar) {
    $result .= buildMenuItem(
      $viewItemName = 'groups',
      $id = 'getGroupsHTML',
      $itemName = 'Groups',
      $href = '?view=groups',
      $icon = 'group',
      $classNameForTag_A = '',
      $subMenu = ''
    );
  } else {
    $result .= '<li id="getGroupsHTML" class="nav-item"><a class="nav-link'.$class.'" href="?view=groups">'. translate('Groups') .'</a></li>'.PHP_EOL;
  }

  return $result;
}

// Returns the html representing the Filter menu item
function getFilterHTML($view, $forLeftBar = false) {
  $result = '';
  if ( !canView('Events') ) return $result;
  
  $class = $view == 'filter' ? ' selected' : '';
  if ($forLeftBar) {
    $result .= buildMenuItem(
      $viewItemName = 'filter',
      $id = 'getFilterHTML',
      $itemName = 'Filters',
      $href = '?view=filter',
      $icon = 'filter_alt',
      $classNameForTag_A = '',
      $subMenu = ''
    );
  } else {
    $result .= '<li id="getFilterHTML" class="nav-item"><a class="nav-link'.$class.'" href="?view=filter">'.translate('Filters').'</a></li>'.PHP_EOL;
  }

  return $result;
}

// Returns the html representing the Cycle menu item
function getCycleHTML($view, $forLeftBar = false) {
  $result = '';
  
  if ( canView('Stream') ) {
    $class = $view == 'cycle' ? ' selected' : '';
    if ($forLeftBar) {
      $result .= buildMenuItem(
        $viewItemName = 'watch',
        $id = 'getCycleHTML',
        $itemName = 'Cycle',
        $href = '?view=watch&amp;cycle=true',
        //$icon = 'cyclone',
        $icon = 'repeat',
        $classNameForTag_A = '',
        $subMenu = ''
      );
    } else {
      $result .= '<li id="getCycleHTML" class="nav-item"><a class="nav-link'.$class.'" href="?view=watch&amp;cycle=true">' .translate('Cycle'). '</a></li>'.PHP_EOL;
    }
  }

  return $result;
}

// Returns the html representing the Montage menu item
function getMontageHTML($view, $forLeftBar = false) {
  global $user;
  $result = '';

  if (canView('Stream') and count($user->viewableMonitorIds())) {
    $class = $view == 'montage' ? ' selected' : '';
    if ($forLeftBar) {
      $result .= buildMenuItem(
        $viewItemName = 'montage',
        $id = 'getMontageHTML',
        $itemName = 'Montage',
        $href = '?view=montage',
        $icon = 'live_tv',
        $classNameForTag_A = '',
        $subMenu = ''
      );
    } else {
      $result .= '<li id="getMontageHTML" class="nav-item"><a class="nav-link'.$class.'" href="?view=montage">' .translate('Montage'). '</a></li>'.PHP_EOL;
    }
  }

  return $result;
}

// Returns the html representing the MontageReview menu item
function getMontageReviewHTML($view, $forLeftBar = false) {
  $result = '';
  
  if ( canView('Events') ) {
    if ( isset($_REQUEST['filter']['Query']['terms']['attr']) ) {
      $terms = $_REQUEST['filter']['Query']['terms'];
      $count = 0;
      foreach ($terms as $term) {
        if ( $term['attr'] == 'StartDateTime' ) {
          $count += 1;
          if ($term['op'] == '>=') $minTime = $term['val'];
          if ($term['op'] == '<=') $maxTime = $term['val'];
        }
      }
      if ( $count == 2 ) {
        $montageReviewQuery = '&minTime='.$minTime.'&maxTime='.$maxTime;
      }
    }
    $live = isset($montageReviewQuery) ? '&fit=1'.$montageReviewQuery.'&live=0' : '';
    $class = $view == 'montagereview' ? ' selected' : '';
    if ($forLeftBar) {
      $result .= buildMenuItem(
        $viewItemName = 'montagereview',
        $id = 'getMontageReviewHTML',
        $itemName = 'MontageReview',
        $href = '?view=montagereview' .$live,
        $icon = 'movie',
        $classNameForTag_A = '',
        $subMenu = ''
      );
    } else {
      $result .= '<li id="getMontageReviewHTML" class="nav-item"><a class="nav-link'.$class.'" href="?view=montagereview' .$live. '">'.translate('MontageReview').'</a></li>'.PHP_EOL;
    }
  }

  return $result;
}

// Returns the html representing the Montage menu item
function getSnapshotsHTML($view, $forLeftBar = false) {
  $result = '';

  if (defined('ZM_FEATURES_SNAPSHOTS') and ZM_FEATURES_SNAPSHOTS and canView('Snapshots')) {
    $class = $view == 'snapshots' ? ' selected' : '';
    if ($forLeftBar) {
      $result .= buildMenuItem(
        $viewItemName = 'snapshots',
        $id = 'getSnapshotsHTML',
        $itemName = 'Snapshots',
        $href = '?view=snapshots',
        $icon = 'preview',
        $classNameForTag_A = '',
        $subMenu = ''
      );
    } else {
      $result .= '<li id="getSnapshotsHTML" class="nav-item"><a class="nav-link'.$class.'" href="?view=snapshots">' .translate('Snapshots'). '</a></li>'.PHP_EOL;
    }
  }

  return $result;
}

// Returns the html representing the Events menu item
function getEventsHTML($view, $forLeftBar = false) {
  global $user;
  $result = '';

  if (canView('Events')) {
    $class = $view == 'events' ? ' selected' : '';
    if ($forLeftBar) {
      $result .= buildMenuItem(
        $viewItemName = 'events',
        $id = 'getEventsHTML',
        $itemName = 'Events',
        $href = '?view=events',
        $icon = 'event',
        $classNameForTag_A = '',
        $subMenu = ''
      );
    } else {
      $result .= '<li id="getEventsHTML" class="nav-item"><a class="nav-link'.$class.'" href="?view=events">' .translate('Events'). '</a></li>'.PHP_EOL;
    }
  }

  return $result;
}

function getReportsHTML($view, $forLeftBar = false) {
  $result = '';

  if (canView('Events')) {
    $class = ($view == 'reports' or $view == 'report') ? ' selected' : '';
    if ($forLeftBar) {
      $result .= buildMenuItem(
        $viewItemName = 'reports',
        $id = 'getReportsHTML',
        $itemName = 'Reports',
        $href = '?view=reports',
        $icon = 'report',
        $classNameForTag_A = '',
        $subMenu = ''
      );
    } else {
      $result .= '<li id="getReportsHTML" class="nav-item"><a class="nav-link'.$class.'" href="?view=reports">'.translate('Reports').'</a></li>'.PHP_EOL;
    }
  }

  return $result;
}

// Returns the html representing the Audit Events Report menu item
function getRprtEvntAuditHTML($view, $forLeftBar = false) {
  $result = '';

  if ( canView('Events') ) {
    $class = $view == 'report_event_audit' ? ' selected' : '';
    if ($forLeftBar) {
      $result .= buildMenuItem(
        $viewItemName = 'report_event_audit',
        $id = 'getRprtEvntAuditHTML',
        $itemName = 'ReportEventAudit',
        $href = '?view=report_event_audit',
        $icon = 'shield',
        $classNameForTag_A = '',
        $subMenu = ''
      );
    } else {
      $result .= '<li id="getRprtEvntAuditHTML" class="nav-item"><a class="nav-link'.$class.'" href="?view=report_event_audit">'.translate('ReportEventAudit').'</a></li>'.PHP_EOL;
    }
  }

  return $result;
}

// Returns the html representing the Audit Events Report menu item
function getMapHTML($view, $forLeftBar = false) {
  $result = '';

  if (defined('ZM_OPT_USE_GEOLOCATION') and ZM_OPT_USE_GEOLOCATION) {
    $class = $view == 'map' ? ' selected' : '';
    if ($forLeftBar) {
      $result .= buildMenuItem(
        $viewItemName = 'map',
        $id = 'getMapHTML',
        $itemName = 'Map',
        $href = '?view=map',
        $icon = 'language',
        $classNameForTag_A = '',
        $subMenu = ''
      );
    } else {
      $result .= '<li id="getMapHTML" class="nav-item"><a class="nav-link'.$class.'" href="?view=map">'.translate('Map').'</a></li>'.PHP_EOL;
    }
  }

  return $result;
}

// Returns the html representing the content of the ZM_WEB_NAVBAR_LINKS content

function getAdditionalLinksHTML($view, $forLeftBar = false) {
  $result = '';

  if (defined('ZM_WEB_NAVBAR_LINKS')) {
    if (ZM_WEB_NAVBAR_LINKS) {
      foreach (explode(',', ZM_WEB_NAVBAR_LINKS) as $link) {
        if ($forLeftBar) {
          $doc = new DomDocument();
          fixAmps($link);
          $doc->loadHTML('<?xml encoding="UTF-8">' . $link);
          $url = $doc->getElementsByTagName('a')[0];
          $value_ = translate('Error in link string: "') . htmlspecialchars($link) . '"';
          $href_ = '';
          $icon_ = '';
          $class_ = '';
          $queryView = '';
          if ($url) {
            $value_ = $url->nodeValue;
            $href_ = $url->getAttribute( 'href' );
            $icon_ = $url->getAttribute('data-icon');
            $class_ = $url->getAttribute('class');
            $parts = parse_url($href_);
            parse_str($parts['query'], $query);
            $queryView = $query['view'];
          }

          $result .= buildMenuItem(
            $viewItemName = $queryView,
            $id = '',
            $itemName = $value_,
            $href = $href_,
            $icon = $icon_,
            $classNameForTag_A = $class_,
            $subMenu = ''
          );
        } else {
          $result .= '<li class="nav-item">'.$link.'</li>'.PHP_EOL;
        }
      }
    }
  }

  return $result;
}


// Returns the html representing the header collapse toggle menu item
function getHeaderFlipHTML() {
  $result = '';
  
  $header = ( isset($_COOKIE['zmHeaderFlip']) and $_COOKIE['zmHeaderFlip'] == 'down') ? 'down' : 'up';
  $result .= '<li id="getHeaderFlipHTML" class="nav-item dropdown"><a href="#"><i id="flip" class="material-icons md-18">keyboard_arrow_' .$header. '</i></a></li>'.PHP_EOL;
  
  return $result;
}

// Returns the html representing the logged in user name and avatar
function getAccountCircleHTML($skin, $user=null, $forLeftBar = false) {
  $result = '';
  
  if ( ZM_OPT_USE_AUTH and $user ) {
    $result .= '<li id="getAccountCircleHTML" class="navbar-text navbar-nav mr-2">'.PHP_EOL;
    $result .= makeLink('#', '<i class="material-icons">account_circle</i> '. validHtmlStr($user->Username()),
      (ZM_AUTH_TYPE == 'builtin'), 'id="logoutButton" data-toggle="modal" data-target="#modalLogout" data-backdrop="false"' ).PHP_EOL;
    $result .= '</li>'.PHP_EOL;
  }
  
  return $result;
}

// Returns the html representing the runtime status button
function getStatusBtnHTML($status) {
  $result = '';
  
  if (canEdit('System')) {
    $result .= '<li id="getStatusBtnHTML">'.PHP_EOL;
    $result .= '<button type="button" class="btn btn-default navbar-btn" id="stateModalBtn">' .$status. '</button>'.PHP_EOL;
    $result .= '</li>'.PHP_EOL;

    if (ZM_SYSTEM_SHUTDOWN) {
      $result .= '<li class="shutdown">'.PHP_EOL;
      $result .= '<button id="shutdownButton" class="btn btn-default navbar-btn" data-on-click="getShutdownModal" data-toggle="tooltip" data-placement="top" title="' .translate('Shutdown'). '"><i class="material-icons md-18">power_settings_new</i></button>'.PHP_EOL;
      $result .= '</li>'.PHP_EOL;
     } 

  } else if (canView('System')) {
    $result .= '<li id="getStatusBtnHTML" class="navbar-text">'.PHP_EOL;
    $result .= $status.PHP_EOL;
    $result .= '</li>'.PHP_EOL;
  }

  return $result;
}

function runtimeStatus($running=null) {
  if ( $running == null )
    $running = daemonCheck();
  if ( $running ) {
    $state = dbFetchOne('SELECT Name FROM States WHERE isActive=1', 'Name');
    if ( $state == 'default' )
      $state = '';
  }

  return $running ? ($state ? $state : translate('Running')) : translate('Stopped');
}

function getStatsTableHTML($eid, $fid, $row='') {
  if ( !canView('Events') ) return;
  $result = '';
  
  $sql = 'SELECT S.*,E.*,Z.Name AS ZoneName,Z.Units,Z.Area,M.Name AS MonitorName FROM Stats AS S LEFT JOIN Events AS E ON S.EventId = E.Id LEFT JOIN Zones AS Z ON S.ZoneId = Z.Id LEFT JOIN Monitors AS M ON E.MonitorId = M.Id WHERE S.EventId = ? AND S.FrameId = ? ORDER BY S.ZoneId';
  $stats = dbFetchAll( $sql, NULL, array( $eid, $fid ) );
  
  $result .= '<table id="contentStatsTable' .$row. '"'.PHP_EOL;
    $result .= 'data-locale="' .i18n(). '"'.PHP_EOL;
    $result .= 'data-toggle="table"'.PHP_EOL;
    $result .= 'data-toolbar="#toolbar"'.PHP_EOL;
    $result .= 'class="table-sm table-borderless contentStatsTable"'.PHP_EOL;
    $result .= 'cellspacing="0">'.PHP_EOL;
    
    $result .= '<caption>' .translate('Stats'). ' - ' .$eid. ' - ' .$fid. '</caption>'.PHP_EOL;
    $result .= '<thead>'.PHP_EOL;
      $result .= '<tr>'.PHP_EOL;
        $result .= '<th class="colZone font-weight-bold" data-align="center">' .translate('Zone'). '</th>'.PHP_EOL;
        $result .= '<th class="colPixelDiff font-weight-bold" data-align="center">' .translate('PixelDiff'). '</th>'.PHP_EOL;
        $result .= '<th class="colAlarmPx font-weight-bold" data-align="center">' .translate('AlarmPx'). '</th>'.PHP_EOL;
        $result .= '<th class="colFilterPx font-weight-bold" data-align="center">' .translate('FilterPx'). '</th>'.PHP_EOL;
        $result .= '<th class="colBlobPx font-weight-bold" data-align="center">' .translate('BlobPx'). '</th>'.PHP_EOL;
        $result .= '<th class="colBlobs font-weight-bold" data-align="center">' .translate('Blobs'). '</th>'.PHP_EOL;
        $result .= '<th class="colBlobSizes font-weight-bold" data-align="center">' .translate('BlobSizes'). '</th>'.PHP_EOL;
        $result .= '<th class="colAlarmLimits font-weight-bold" data-align="center">' .translate('AlarmLimits'). '</th>'.PHP_EOL;
        $result .= '<th class="colScore font-weight-bold" data-align="center">' .translate('Score'). '</th>'.PHP_EOL;
      $result .= '</tr>'.PHP_EOL;
    $result .= '</thead>'.PHP_EOL;

    $result .= '<tbody>'.PHP_EOL;

    if ( count($stats) ) {
      foreach ( $stats as $stat ) {
        $result .= '<tr>'.PHP_EOL;
          $result .= '<td class="colZone">' .validHtmlStr($stat['ZoneName']). '</td>'.PHP_EOL;
          $result .= '<td class="colPixelDiff">' .validHtmlStr($stat['PixelDiff']). '</td>'.PHP_EOL;
          $result .= '<td class="colAlarmPx">' .sprintf( "%d (%d%%)", $stat['AlarmPixels'], (100*$stat['AlarmPixels']/$stat['Area']) ). '</td>'.PHP_EOL;
          $result .= '<td class="colFilterPx">' .sprintf( "%d (%d%%)", $stat['FilterPixels'], (100*$stat['FilterPixels']/$stat['Area']) ).'</td>'.PHP_EOL;
          $result .= '<td class="colBlobPx">' .sprintf( "%d (%d%%)", $stat['BlobPixels'], (100*$stat['BlobPixels']/$stat['Area']) ). '</td>'.PHP_EOL;
          $result .= '<td class="colBlobs">' .validHtmlStr($stat['Blobs']). '</td>'.PHP_EOL;
          
          if ( $stat['Blobs'] > 1 ) {
            $result .= '<td class="colBlobSizes">' .sprintf( "%d-%d (%d%%-%d%%)", $stat['MinBlobSize'], $stat['MaxBlobSize'], (100*$stat['MinBlobSize']/$stat['Area']), (100*$stat['MaxBlobSize']/$stat['Area']) ). '</td>'.PHP_EOL;
          } else {
            $result .= '<td class="colBlobSizes">' .sprintf( "%d (%d%%)", $stat['MinBlobSize'], 100*$stat['MinBlobSize']/$stat['Area'] ). '</td>'.PHP_EOL;
          }
          
          $result .= '<td class="colAlarmLimits">' .validHtmlStr($stat['MinX'].",".$stat['MinY']."-".$stat['MaxX'].",".$stat['MaxY']). '</td>'.PHP_EOL;
          $result .= '<td class="colScore">' .$stat['Score']. '</td>'.PHP_EOL;
        $result .= '</tr>'.PHP_EOL;
      }
    } else {
      $result .= '<tr>'.PHP_EOL;
        //IMPORTANT! There is a problem with Bootstrap here. The class is being moved from <th> and "colspan" is not being applied
        $result .= '<td class="rowNoStats" colspan="9">' .translate('NoStatisticsRecorded'). '</td>'.PHP_EOL;
      $result .= '</tr>'.PHP_EOL;
    }

    $result .= '</tbody>'.PHP_EOL;
  $result .= '</table>'.PHP_EOL;

  return $result;
}

// Use this function to manually insert the csrf key into the form when using a modal generated via ajax call
function getCSRFinputHTML() {
  if ( isset($GLOBALS['csrf']['key']) ) {
    $result = '<input type="hidden" name="__csrf_magic" value="key:' .csrf_hash($GLOBALS['csrf']['key']). '" />'.PHP_EOL;
  } else {
    $result = '';
  }
  
  return $result;
}

function fixAmps(&$html) {
  //https://stackoverflow.com/questions/1685277/warning-domdocumentloadhtml-htmlparseentityref-expecting-in-entity
  $positionAmp = strpos($html, '&');
  $positionSemiColumn = strpos($html, ';', $positionAmp+1);
  $string = substr($html, $positionAmp, $positionSemiColumn-$positionAmp+1);
  if ($positionAmp !== false) { // If an '&' can be found.
    if ($positionSemiColumn === false) { // If no ';' can be found.
      $html = substr_replace($html, '&amp;', $positionAmp, 1); // Replace straight away.
    } else if (preg_match('/&(#[0-9]+|[A-Z|a-z|0-9]+);/', $string) === 0) { // If a standard escape cannot be found.
      $html = substr_replace($html, '&amp;', $positionAmp, 1); // This mean we need to escape the '&' sign.
      fixAmps($html, $positionAmp+5); // Recursive call from the new position.
    } else {
      fixAmps($html, $positionAmp+1); // Recursive call from the new position.
    }
  }
}

function xhtmlFooter() {
  global $css;
  global $cspNonce;
  global $view;
  global $skin;
  global $basename;

  global $navbar_type;
  if ($navbar_type == 'left') {
    getSidebarBottomHTML();
  }
?>
  <script src="<?php echo cache_bust('skins/'.$skin.'/js/jquery.min.js'); ?>"></script>
  <script src="skins/<?php echo $skin; ?>/js/jquery-ui-1.13.2/jquery-ui.min.js"></script>
  <script src="<?php echo cache_bust('js/ajaxQueue.js') ?>"></script>
  <script src="skins/<?php echo $skin; ?>/js/bootstrap-4.5.0.min.js"></script>
<?php 
  if ($navbar_type == 'left') {
    echo output_script_if_exists(array('assets/pro-sidebar-template/dist/main.js'));
    echo output_script_if_exists(array('assets/mb.extruder/inc/mbExtruder.js'));
    echo output_script_if_exists(array('assets/swiped-events/dist/swiped-events.min.js'));
  }
  if ( $basename == 'montage' ) {
  } else if ( $basename == 'watch' || $basename == 'event') {
    echo output_script_if_exists(array('assets/jquery.panzoom/dist/jquery.panzoom.js'));
    echo output_script_if_exists(array('js/panzoom.js'));
  }

  echo output_script_if_exists(array(
  'js/tableExport.min.js',
  'assets/bootstrap-table-1.24.1/bootstrap-table.min.js',
  'assets/bootstrap-table-1.24.1/extensions/locale/bootstrap-table-locale-all.min.js',
  'assets/bootstrap-table-1.24.1/extensions/export/bootstrap-table-export.min.js',
  'assets/bootstrap-table-1.24.1/extensions/page-jump-to/bootstrap-table-page-jump-to.min.js',
  'assets/bootstrap-table-1.24.1/extensions/cookie/bootstrap-table-cookie.js',
  'assets/bootstrap-table-1.24.1/extensions/toolbar/bootstrap-table-toolbar.min.js',
  'assets/bootstrap-table-1.24.1/extensions/auto-refresh/bootstrap-table-auto-refresh.min.js',
  'assets/bootstrap-table-1.24.1/extensions/mobile/bootstrap-table-mobile.js',
  'js/chosen/chosen.jquery.js',
  'js/noUiSlider-15.8.1/dist/nouislider.min.js',
  'js/dateTimePicker/jquery-ui-timepicker-addon.js',
  'js/Server.js',
), true );
?>
  <script src="skins/<?php echo $skin ?>/js/moment.min.js"></script>
  <script src="skins/<?php echo $skin ?>/js/luxon-3.4.4.min.js"></script>
<?php
?>
  <script nonce="<?php echo $cspNonce; ?>">
    var $j = jQuery.noConflict();
    var DateTime = luxon.DateTime;
<?php
  $skinJsPhpFile = getSkinFile('js/skin.js.php');
  if ( $skinJsPhpFile ) require_once( $skinJsPhpFile );
  $viewJsPhpFile = getSkinFile('views/js/'.$basename.'.js.php');
  if ( $viewJsPhpFile ) require_once( $viewJsPhpFile );
?>
  </script>
  <script src="<?php echo cache_bust('js/logger.js')?>"></script>
<?php
  $viewJsFile = getSkinFile('views/js/'.$basename.'.js');
  if ( $viewJsFile ) {
?>
  <script src="<?php echo cache_bust($viewJsFile) ?>"></script>
<?php
  }
  $skinJsFile = getSkinFile('js/skin.js');
?>
  <script nonce="<?php echo $cspNonce; ?>" src="<?php echo cache_bust($skinJsFile) ?>"></script>
  </body>
</html>
<?php
} // end xhtmlFooter

class ZM_Menu {
  public static $submenuOptionsItems = [];

  public function __construct(string $typeMenu, array $menuItems) {

  }

  private static function addCategoryToOptionsMenu(array $categoriesOptionsInDB, array $categoryDisplayOrder) {
    foreach ($categoryDisplayOrder as $cat) {
      $key = array_search(strtolower($cat), array_map('strtolower', $categoriesOptionsInDB));
      $added = false;
      if ($cat == 'display' && (!defined('ZM_FORCE_CSS_DEFAULT') or !defined('ZM_FORCE_SKIN_DEFAULT'))) {
        $added = true;
      } else if ($cat == 'dnsmasq' && (defined('ZM_PATH_DNSMASQ_CONF') and ZM_PATH_DNSMASQ_CONF)) {
        $added = true;
      } else {
        $added = true;
      }
      if ($added) {
        self::$submenuOptionsItems[$cat] = translate(mb_ucfirst(($cat == 'version') ? 'Versions' : $cat));
        unset($categoriesOptionsInDB[$key]);
      }
    }

    // If not all categories from the database were added (according to the sorted array $categoryDisplayOrder), then add the categories to the end of the "Options" menu
    if (count($categoriesOptionsInDB)) {
      foreach ($categoriesOptionsInDB as $cat) {
        if (!in_array(strtolower($cat), ['dynamic', 'hidden'], $strict = false)) // Prohibited categories
          self::$submenuOptionsItems[$cat] = translate(mb_ucfirst($cat));
      }
    }
  }
  
  public static function buildSubMenuOptions($categoryDisplayOrder) {
    $categoriesOptionsInDB = [];
    foreach ( dbFetchAll('SELECT DISTINCT `Category` FROM `Config` ORDER BY lower(`Category`) ASC') as $сategory_row ) {
      array_push($categoriesOptionsInDB, $сategory_row['Category']);
    }
    self::addCategoryToOptionsMenu($categoriesOptionsInDB, $categoryDisplayOrder);
  }
}

if (!function_exists('mb_ucfirst')) { // Available in PHP >= 8.4
  function mb_ucfirst($str, $encoding='UTF-8') {
    if (extension_loaded('mbstring')) {
      $result = mb_strtoupper(mb_substr($str, 0, 1, $encoding)) . mb_substr($str, 1, null, $encoding);
    } else {
      $result = (ucfirst($str));
    }
    return $result;
  }
}

// $typeMenu we are not using it yet. From now on we will specify either 'leftMenu' or 'topMenu'
// $menuItems we are not using it yet. These are main menu items with the ability to be customized by the user.
$zmMenu = new ZM_Menu($typeMenu = '', $menuItems = [

]);
?>
