#!/usr/bin/php -q
<?PHP
/* Copyright 2005-2025, Lime Technology
 * Copyright 2012-2025, Bergware International.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version 2,
 * as published by the Free Software Foundation.
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 */
?>
<?
$docroot  = '/usr/local/emhttp';
$varroot  = '/var/local/emhttp';
$pool_log = '/var/tmp/pool_log.tmp';
$smartALL = '/boot/config/smart-all.cfg';
$smartONE = '/boot/config/smart-one.cfg';
$md5_old  = $fs_old = -1;

require_once "$docroot/webGui/include/Helpers.php";
require_once "$docroot/webGui/include/publish.php";
extract(parse_plugin_cfg('dynamix',true));

// add translations
$_SERVER['REQUEST_URI'] = 'main';
$login_locale = _var($display,'locale');
require_once "$docroot/webGui/include/Translations.php";

// remember current language
$locale_init = $locale;

function initSum() {
  return ['count'=>0, 'temp'=>0, 'power'=>0, 'fsSize'=>0, 'fsUsed'=>0, 'fsFree'=>0, 'ioReads'=>0, 'ioWrites'=>0, 'numReads'=>0, 'numWrites'=>0, 'numErrors'=>0];
}

function get_model($id) {
  return substr($id,0,strrpos($id,'_'));
}

function my_power($power) {
  global $display;
  $number = _var($display,'number','.,');
  return _var($display,'power') && $power ? number_format($power,$power<10?2:1,$number[0]).' '._('W').' / ' : '';
}

function device_info(&$disk,$online) {
  global $pools, $var;
  if (!$online || _var($disk,'fsStatus')!='Mounted' || (in_array(_var($disk,'type'),['Parity','Cache']) && (!in_array(_var($disk,'name'),$pools) || isSubpool(_var($disk,'name'))))) {
    $view = "<a class='view'></a>";
  } else {
    $dir = _var($disk,'name')=='flash' ? "/boot" : "/mnt/"._var($disk,'name');
    $view = "<a class='view' href=\"/Main/Browse?dir=".htmlspecialchars($dir)."\"><i class=\"icon-u-tab\" title=\""._('Browse')." $dir\"></i></a>";
  }
  $name   = _var($disk,'name');
  $named  = no_tilde($name);
  $fancy  = _(my_disk(native($name,1)),3);
  $type   = _var($disk,'type');
  $source = $type=='Flash' ? $type : 'Device';
  $parity = $type=='Parity';
  $data   = $type=='Data';
  $pool   = $type=='Cache';
  $action = str_contains(_var($disk,'color'),'blink') ? 'up' : 'down';
  switch (_var($disk,'color')) {
    case 'green-on':     $orb = 'circle';  $color = 'green';  $help = _('Normal operation, device is active'); break;
    case 'green-blink':  $orb = 'circle';  $color = 'grey';   $help = _('Device is in standby mode (spun-down)'); break;
    case 'blue-on':      $orb = 'square';  $color = 'blue';   $help = _('New device'); break;
    case 'blue-blink':   $orb = 'square';  $color = 'grey';   $help = _('New device, in standby mode (spun-down)'); break;
    case 'yellow-on':    $orb = 'warning'; $color = 'yellow'; $help = $pool ? _('Device contents invalid') : ($parity ? _('Parity is invalid') : _('Device contents emulated')); break;
    case 'yellow-blink': $orb = 'warning'; $color = 'grey';   $help = $pool ? _('Device contents invalid, in standby mode (spun-down)') : ($parity ? _('Parity is invalid, in standby mode (spun-down)') : _('Device contents emulated, in standby mode (spun-down)')); break;
    case 'red-on':
    case 'red-blink':    $orb = 'times';   $color = 'red';    $help = $pool ? _('Device is disabled') : ($parity ? _('Parity device is disabled') : _('Device is disabled, contents emulated')); break;
    case 'red-off':      $orb = 'times';   $color = 'red';    $help = $pool ? _('Device is missing (disabled)') : ($parity ? _('Parity device is missing') : _('Device is missing (disabled), contents emulated')); break;
    case 'grey-off':     $orb = 'square';  $color = 'grey';   $help = _('Device not present'); break;
  }
  $ctrl = '';
  $disk_status = _var($disk,'status');
  if (_var($var,'fsState')=='Started' && $source!='Flash' && !str_contains($disk_status,'_NP')) {
    $ctrl = " style='cursor:pointer' onclick=\"toggle_state('$source','$name','$action')\"";
    $help .= "<br>"._("Click to spin $action device");
  }
  $status = "<a class='info'><i ".($ctrl?"id='dev-$named' ":"")."class='fa fa-$orb orb $color-orb'$ctrl></i><span>$help</span></a>";

  $link   = ($parity && $disk_status!='DISK_NP_DSBL') || (($data || $pool) && $disk_status!='DISK_NP') || $name=='flash' || in_array($name,$pools) || $type=='New'
          ? "<a href=\"".htmlspecialchars("/Main/$source?name=$name")."\">$fancy</a>"
          : $fancy;
  return $view.$status.$link;
}

function device_desc(&$disk) {
  global $var;
  $size = my_scale(_var($disk,'sectors',0)*_var($disk,'sector_size',0),$unit,-1);
  if (_var($var,'fsState')=='Started') {
    switch (_var($disk,'type')) {
      case 'Flash':  $type = 'usb'; break;
      case 'Parity': $type = _var($disk,'rotational') ? 'disk' : 'nvme'; break;
      case 'Data':
      case 'Cache':  $type = _var($disk,'rotational') ? (_var($disk,'luksState') ? 'disk-encrypted' : 'disk') : 'nvme'; break;
      default:       $type = 'disk'; break;
    }
    $log = "<a class='info hand' onclick=\"openTerminal('disklog','"._var($disk,'device')."','')\"><i class='icon-$type icon'></i><span>"._('Disk Log Information')."</span></a>";
    return $log."<span style='font-family:bitstream'>".my_id(_var($disk,'id'))."</span> - $size $unit ("._var($disk,'device').")";
  } else {
    return my_id(_var($disk,'id'))." - $size $unit ("._var($disk,'device').")";
  }
}

function assignment(&$disk) {
  global $var, $devs;
  $echo = [];
  $echo[] = "<form method='POST' action='/update.htm' target='progressFrame'>";
  $echo[] = "<input type='hidden' name='changeDevice' value='apply'>";
  $echo[] = "<input type='hidden' name='csrf_token' value='"._var($var,'csrf_token')."'>";
  $echo[] = "<select class='slot' name='slotId."._var($disk,'idx')."' onChange='devices.start();this.form.submit()'>";
  $empty = _var($disk,'idSb')!='' ? _('no device') : _('unassigned');
  if (_var($disk,'id')) {
    $echo[] = "<option value=\"{$disk['id']}\" selected>".device_desc($disk)."</option>";
    $echo[] = "<option value=''>$empty</option>";
  } else {
    $echo[] = "<option value='' selected>$empty</option>";
  }
  foreach ($devs as $dev) $echo[] = "<option value=\""._var($dev,'id')."\">".device_desc($dev)."</option>";
  $echo[] = "</select></form>";
  return implode($echo);
}

function vfs_luks($fs) {
  return str_starts_with($fs,'luks:');
}

function vfs_type(&$disk,$online = false) {
  global $disks, $pools, $crypto;
  $fsType = _var($disk,'fsType','');
  $luks   = '';
  if (empty($fsType)) return;
  if (vfs_luks($fsType) && $crypto) switch (_var($disk,'luksState',0)) {
    case 0:
      $luks = "<a class='info'><i class='padlock fa fa-unlock-alt orange-text'></i><span>"._('Device to be encrypted')."</span></a>";
      break;
    case 1:
      if ($online) {
        $luks = "<a class='info'><i class='padlock fa fa-unlock-alt green-text'></i><span>"._('Device encrypted and unlocked')."</span></a>";
        break;
      }
      /* fall thru */
    case 2:
      $luks = "<a class='info'><i class='padlock fa fa-lock green-text'></i><span>"._('Device encrypted')."</span></a>";
      break;
    case 3:
      $luks = "<a class='info'><i class='padlock fa fa-lock red-text'></i><span>"._('Device locked: wrong encryption key')."</span></a>";
      break;
   default:
      $luks = "<a class='info'><i class='padlock fa fa-lock red-text'></i><span>"._('Device locked: unknown error')."</span></a>";
      break;
  }
  return $luks.str_replace('luks:','',$fsType);
}

function fs_info(&$disk,$online = false) {
  global $display;
  $echo = [];
  if (empty(_var($disk,'fsStatus','')))
    return "<td colspan='4'></td>";
  if (_var($disk,'fsStatus')=='Mounted') {
    $echo[] = "<td>".vfs_type($disk,$online)."</td>";
    $echo[] = "<td>".my_scale(_var($disk,'fsSize',0)*1024,$unit,-1)." $unit</td>";
    if ($display['text']%10==0) {
      $echo[] = "<td>".my_scale(_var($disk,'fsUsed',0)*1024,$unit)." $unit</td>";
    } else {
      $used = _var($disk,'fsSize',0)>0 ? 100-round(100*_var($disk,'fsFree',0)/$disk['fsSize']) : 0;
      $echo[] = "<td><div class='usage-disk'><span style='width:$used%' class='".usage_color($disk,$used,false)."'></span><span>".my_scale(_var($disk,'fsUsed',0)*1024,$unit)." $unit</span></div></td>";
    }
    if (_var($display,'text',0)<10 ? _var($display,'text',0)%10==0 : _var($display,'text',0)%10!=0) {
      $echo[] = "<td>".my_scale(_var($disk,'fsFree',0)*1024,$unit)." $unit</td>";
    } else {
      $free = _var($disk,'fsSize',0)>0 ? round(100*_var($disk,'fsFree',0)/$disk['fsSize']) : 0;
      $echo[] = "<td><div class='usage-disk'><span style='width:$free%' class='".usage_color($disk,$free,true)."'></span><span>".my_scale(_var($disk,'fsFree',0)*1024,$unit)." $unit</span></div></td>";
    }
  } else {
    $echo[] = "<td>".vfs_type($disk,$online)."</td><td colspan='3'>"._(_var($disk,'fsStatus'))."</td>";
  }
  return implode($echo);
}

function my_diskio($data) {
  return my_scale($data,$unit,1)." $unit/s";
}

function array_offline(&$disk, $pool='') {
  global $var, $disks, $display;
  $disk['power'] ??= (_var($display,'power') && _var($disk,'transport')=='nvme' ? get_nvme_info(_var($disk,'device'),'power') : 0);
  $echo = []; $warning = '';
  $status = ['DISK_INVALID','DISK_DSBL_NEW','DISK_WRONG'];
  $text = "<span class='red-text'><em>"._('All existing data on this device will be OVERWRITTEN when array is Started')."</em></span>";
  if (_var($disk,'type')=='Cache') {
    if (!str_contains(_var($disks[$pool],'state'),'ERROR:')) {
      $_pool = (strpos($pool, '~') !== false) ? substr($pool, 0, strpos($pool, '~')) : $pool;
      if (!empty(_var($disks[$_pool],'uuid'))) {
        if (in_array(_var($disk,'status'),$status) || _var($disk['status'])=='DISK_NEW') $warning = $text;
      }
    }
  } else {
    if (!str_contains(_var($var,'mdState'),'ERROR:')) {
      if (_var($var,'mdState')=='NEW_ARRAY') {
        if (_var($disk,'type')=='Parity') $warning = $text;
      } elseif (_var($var,'mdState')=='RECON_DISK') {
        if (in_array(_var($disk,'status'),$status)) $warning = $text;
      } elseif (_var($disk['status'])=='DISK_NEW' && _var($var,'mdResyncAction')=='clear') {
        $warning = $text;
      }
    }
  }
  $echo[] = "<tr class='offline'>";
  switch (_var($disk,'status')) {
  case 'DISK_NP':
    $echo[] = "<td>".device_info($disk,false)."</td>";
    $echo[] = "<td>".assignment($disk)."</td>";
    $echo[] = "<td colspan='8'></td>";
    break;
  case 'DISK_NP_MISSING':
    $echo[] = "<td>".device_info($disk,false)."<br><span class='diskinfo'><em>"._('Missing')."</em></span></td>";
    $echo[] = "<td>".assignment($disk)."<em>{$disk['idSb']}</em></td>";
    $echo[] = "<td colspan='4'></td>";
    $echo[] = "<td>".vfs_type($disk,false)."</td>";
    $echo[] = "<td colspan='3'></td>";
    break;
  case 'DISK_NP_DSBL':
    $echo[] = "<td>".device_info($disk,false)."</td>";
    $echo[] = "<td>".assignment($disk)."</td>";
    $echo[] = "<td colspan='4'></td>";
    $echo[] = "<td>".vfs_type($disk,false)."</td>";
    $echo[] = "<td colspan='3'></td>";
    break;
  case 'DISK_OK':
  case 'DISK_DSBL':
  case 'DISK_INVALID':
  case 'DISK_DSBL_NEW':
  case 'DISK_NEW':
    $echo[] = "<td>".device_info($disk,false)."</td>";
    $echo[] = "<td>".assignment($disk)."</td>";
    $echo[] = "<td>".my_power($disk['power']).my_temp(_var($disk,'temp','*'))."</td>";
    if ($warning) {
      $echo[] = "<td colspan='7'>$warning</td>";
    } else {
      $echo[] = "<td colspan='3'></td>";
      $echo[] = "<td>".vfs_type($disk,false)."</td>";
      $echo[] = "<td colspan='3'></td>";
    }
    break;
  case 'DISK_WRONG':
    $echo[] = "<td>".device_info($disk,false)."<br><span class='diskinfo'><em>"._('Wrong')."</em></span></td>";
    $echo[] = "<td>".assignment($disk)."<em>{$disk['idSb']}</em></td>";
    $echo[] = "<td>".my_temp(_var($disk,'temp','*'))."</td>";
    if ($warning) {
      $echo[] = "<td colspan='7'>$warning</td>";
    } else {
      $echo[] = "<td colspan='3'></td>";
      $echo[] = "<td>".vfs_type($disk,false)."</td>";
      $echo[] = "<td colspan='3'></td>";
    }
    break;
  }
  $echo[] = "</tr>";
  return implode($echo);
}

function array_online(&$disk, $fstype='') {
  global $pools, $sum, $diskio;
  $disk['power'] ??= (_var($disk,'transport')=='nvme' ? get_nvme_info(_var($disk,'device'),'power') : 0);
  $echo = [];
  $data = [0,0];
  if (_var($disk,'device')) {
    $dev = $disk['device'];
    $data = explode(' ',$diskio[$dev] ?? '0 0');
    $sum['ioReads'] += $data[0];
    $sum['ioWrites'] += $data[1];
  }
  if (is_numeric(_var($disk,'temp','*'))) {
    $sum['count']++;
    $sum['temp'] += $disk['temp'];
  }
  $sum['power'] += floatval(_var($disk,'power',0));
  $sum['numReads'] += _var($disk,'numReads',0);
  $sum['numWrites'] += _var($disk,'numWrites',0);
  $sum['numErrors'] += _var($disk,'numErrors',0);
  if (isset($disk['fsFree'])) {
    $sum['fsSize'] += _var($disk,'fsSize',0);
    $sum['fsUsed'] += _var($disk,'fsUsed',0);
    $sum['fsFree'] += _var($disk,'fsFree',0);
  }
  $echo[] = "<tr>";
  switch (_var($disk,'status')) {
  case 'DISK_NP':
    if (in_array(_var($disk,'name'),$pools) || $fstype=='zfs') {
      $echo[] = "<td>".device_info($disk,true)."</td>";
      $echo[] = "<td><a class='static'><i class='icon-disk icon'></i><span></span></a><em>".($fstype=='zfs' ? _('Not present') : _('Not installed'))."</em></td>";
      $echo[] = "<td colspan='4'></td>";
      $echo[] = fs_info($disk,true);
    }
    break;
  case 'DISK_NP_DSBL':
    $echo[] = "<td>".device_info($disk,true)."</td>";
    $echo[] = "<td><a class='static'><i class='icon-disk icon'></i><span></span></a><em>"._('Not installed')."</em></td>";
    $echo[] = "<td colspan='4'></td>";
    $echo[] = fs_info($disk,true);
    break;
  case 'DISK_DSBL':
  default:
    $echo[] = "<td>".device_info($disk,true)."</td>";
    $echo[] = "<td class='desc'>".device_desc($disk)."</td>";
    $echo[] = "<td>".my_power($disk['power']).my_temp(_var($disk,'temp','*'))."</td>";
    $echo[] = "<td><span class='diskio'>".my_diskio($data[0])."</span><span class='number'>".my_number(_var($disk,'numReads',0))."</span></td>";
    $echo[] = "<td><span class='diskio'>".my_diskio($data[1])."</span><span class='number'>".my_number(_var($disk,'numWrites',0))."</span></td>";
    $echo[] = "<td>".my_number(_var($disk,'numErrors',0))."</td>";
    $echo[] = fs_info($disk,true);
    break;
  }
  $echo[] = "</tr>";
  return implode($echo);
}

function show_totals($text,$array,$name) {
  global $var, $display, $sum, $locale;
  $number = _var($display,'number','.,');
  $ctrl1 = "onclick=\"toggle_state('Device','$name','down')\"";
  $ctrl2 = "onclick=\"toggle_state('Device','$name','up')\"";
  $help1 = _('Spin Down').' '._(ucfirst(substr($name,0,-1)));
  $help2 = _('Spin Up').' '._(ucfirst(substr($name,0,-1)));
  $echo  = [];
  $echo[] = "<tr class='tr_last'>";
  $echo[] = "<td><a class='info'><i class='fa fa-toggle-down control' $ctrl1></i><span>$help1</span></a><a class='info'><i class='fa fa-fw fa-toggle-up control' $ctrl2></i><span>$help2</span></a></td>";
  $echo[] = "<td><a class='static'><i class='icon-disks icon'></i></a><span></span>$text</td>";
  $echo[] = "<td>".my_power($sum['power']).($sum['count']>0 ? my_temp(round($sum['temp']/$sum['count'])) : '*')."</td>";
  $echo[] = "<td><span class='diskio'>".my_diskio($sum['ioReads'])."</span><span class='number'>".my_number($sum['numReads'])."</span></td>";
  $echo[] = "<td><span class='diskio'>".my_diskio($sum['ioWrites'])."</span><span class='number'>".my_number($sum['numWrites'])."</span></td>";
  $echo[] = "<td>".my_number($sum['numErrors'])."</td>";
  $echo[] = "<td></td>";
  if ($array && _var($var,'startMode')=='Normal') {
    $echo[] = "<td>".my_scale($sum['fsSize']*1024,$unit,-1)." $unit</td>";
    if ($display['text']%10==0) {
      $echo[] = "<td>".my_scale($sum['fsUsed']*1024,$unit)." $unit</td>";
    } else {
      $used = $sum['fsSize'] ? 100-round(100*$sum['fsFree']/$sum['fsSize']) : 0;
      $echo[] = "<td><div class='usage-disk'><span style='width:$used%' class='".usage_color($display,$used,false)."'></span><span>".my_scale($sum['fsUsed']*1024,$unit)." $unit</span></div></td>";
    }
    if ($display['text']<10 ? $display['text']%10==0 : $display['text']%10!=0) {
      $echo[] = "<td>".my_scale($sum['fsFree']*1024,$unit)." $unit</td>";
    } else {
      $free = $sum['fsSize'] ? round(100*$sum['fsFree']/$sum['fsSize']) : 0;
      $echo[] = "<td><div class='usage-disk'><span style='width:$free%' class='".usage_color($display,$free,true)."'></span><span>".my_scale($sum['fsFree']*1024,$unit)." $unit</span></div></td>";
    }
  } else {
    $echo[] = "<td colspan='3'></td>";
  }
  $echo[] = "</tr>";
  return implode($echo);
}

function array_slots() {
  global $var;
  $min  = max(_var($var,'sbNumDisks',0),3);
  $max  = _var($var,'MAX_ARRAYSZ');
  $echo = [];
  $echo[] = "<form method='POST' action='/update.htm' target='progressFrame'>";
  $echo[] = "<input type='hidden' name='csrf_token' value='"._var($var,'csrf_token')."'>";
  $echo[] = "<input type='hidden' name='changeSlots' value='apply'>";
  $echo[] = "<select class='slots-amount' name='SYS_ARRAY_SLOTS' onChange='devices.start();this.form.submit()'>";
  if (_var($var,'mdNumDisks')=='0')
    $echo[] = "<option value='0'>none</option>";
  for ($n=$min; $n<=$max; $n++) {
    $selected = $n==_var($var,'SYS_ARRAY_SLOTS') ? ' selected' : '';
    $echo[] = "<option value='$n'{$selected}>$n</option>";
  }
  $echo[] = "</select></form>";
  return implode($echo);
}

function cache_slots($off,$pool,$min,$slots) {
  global $var, $disks;
  $off  = $off && $min ? ' disabled' : '';
  $fsType = _var($disks[$pool],'fsType','auto');
  $max  = ($fsType=='auto' || str_contains($fsType,'btrfs') || str_contains($fsType,'zfs')) ? _var($var,'MAX_CACHESZ') : 1;
  $echo = [];
  $echo[] = "<form method='POST' action='/update.htm' target='progressFrame'>";
  $echo[] = "<input type='hidden' name='csrf_token' value='"._var($var,'csrf_token')."'>";
  $echo[] = "<input type='hidden' name='changeSlots' value='apply'>";
  $echo[] = "<input type='hidden' name='poolName' value='$pool'>";
  $echo[] = "<select class='slots-amount' name='poolSlots' onChange='devices.start();this.form.submit()'{$off}>";
  for ($n=$min; $n<=$max; $n++) {
    $selected = ($n==$slots) ? ' selected' : '';
    $echo[] = "<option value='$n'{$selected}>$n</option>";
  }
  $echo[] = "</select></form>";
  return implode($echo);
}

function update_translation($locale) {
  global $docroot,$language;
  $language = [];
  if ($locale) {
    $text = "$docroot/languages/$locale/translations.txt";
    if (file_exists($text)) {
      $store = "$docroot/languages/$locale/translations.dot";
      if (!file_exists($store)) file_put_contents($store,serialize(parse_lang_file($text)));
      $language = unserialize(file_get_contents($store));
    }
    $text = "$docroot/languages/$locale/main.txt";
    if (file_exists($text)) {
      $store = "$docroot/languages/$locale/main.dot";
      if (!file_exists($store)) file_put_contents($store,serialize(parse_lang_file($text)));
      $language = array_merge($language,unserialize(file_get_contents($store)));
    }
  }
}

while (true) {
  $var    = (array)@parse_ini_file("$varroot/var.ini");
  $devs   = (array)@parse_ini_file("$varroot/devs.ini",true);
  $disks  = (array)@parse_ini_file("$varroot/disks.ini",true);
  $sec    = (array)@parse_ini_file("$varroot/sec.ini",true);
  $diskio = (array)@parse_ini_file("$varroot/diskload.ini");
  // check for language changes
  extract(parse_plugin_cfg('dynamix',true));
  if (_var($display,'locale') != $locale_init) {
    $locale_init = _var($display,'locale');
    update_translation($locale_init);
  }
  // sort unassigned devices on disk identification
  if (count($devs)>1) array_multisort(array_column($devs,'sectors'),SORT_DESC,array_map('get_model',array_column($devs,'id')),SORT_NATURAL|SORT_FLAG_CASE,array_column($devs,'device'),$devs);

  // merge device custom settings
  if (file_exists($smartALL)) $var = array_merge($var,parse_ini_file($smartALL));
  if (file_exists($smartONE)) {
    $smarts = parse_ini_file($smartONE,true);
    foreach ($smarts as $id => $smart) {
      if (isset($disks)) {
        foreach ($disks as $key => $disk) {
          if (_var($disk,'id')==$id) $disks[$key] = array_merge($disks[$key], $smart);
        }
      }
      if (isset($devs)) {
        foreach ($devs as $key => $disk) {
          if (_var($disk,'id')==$id) $devs[$key] = array_merge($devs[$key], $smart);
        }
      }
    }
  }

  // initialize stuff
  $sum = initSum();
  $Parity = $Data = $Cache = $Flash = [];
  $crypto = false;
  $echo   = [];
  foreach ($disks as $disk) {
    ${$disk['type']}[$disk['name']] = &$disks[$disk['name']];
    if (in_array($disk['type'],['Data','Cache'])) $crypto |= _var($disk,'luksState',0)!=0 || vfs_luks(_var($disk,'fsType'));
  }
  $Flash = &$Flash['flash'];
  $pools = array_unique(array_map('prefix',array_keys($Cache)));

  $a = 'array_devices';
  $echo[$a] = [];
  $poolsOnly = (_var($var,'SYS_ARRAY_SLOTS') == 0) ? true : false;
  if (_var($var,'fsState')=='Stopped') {
    if (!$poolsOnly) {
      foreach ($Parity as $disk) $echo[$a][] = array_offline($disk);
      $echo[$a][] = "<tr class='tr_last'><td colspan='10'></td></tr>";
      foreach ($Data as $disk) $echo[$a][] = array_offline($disk);
    }
    $echo[$a][] = "<tr class='tr_last'><td>"._('Slots').":</td><td colspan='8'>".array_slots()."</td><td></td></tr>";
  } else {
    if (!$poolsOnly) {
      foreach ($Parity as $disk) if ($disk['status']!='DISK_NP_DSBL') $echo[$a][] = array_online($disk);
      foreach ($Data as $disk) $echo[$a][] = array_online($disk);
      if (_var($display,'total') && _var($var,'mdNumDisks',0)>1) $echo[$a][] = show_totals(sprintf(_('Array of %s devices'),my_word($var['mdNumDisks'])),true,'disk*');
    }
  }
  $echo[$a] = implode($echo[$a]);

  $a = 'boot_device';
  $echo[$a] = [];
  $data = explode(' ',$diskio[_var($Flash,'device')] ?? '0 0');
  $flash = &$sec['flash'];
  $share = (_var($var,'shareSMBEnabled')=='yes' && _var($flash,'export')=='e' && _var($flash,'security')=='public')
           ? "&nbsp;<a class='info'><i class='fa fa-warning fa-fw orange-text'></i><span>"._('Flash device is set as public share')."<br>"._('Please change share SMB security')."<br>"._('Click on **FLASH** above this message')."</span></a>"
           : "";
  $echo[$a][] = "<tr>";
  $echo[$a][] = "<td>".device_info($Flash,true).$share."</td>";
  $echo[$a][] = "<td>".device_desc($Flash)."</td>";
  $echo[$a][] = "<td>*</td>";
  $echo[$a][] = "<td><span class='diskio'>".my_diskio($data[0])."</span><span class='number'>".my_number(_var($Flash,'numReads',0))."</span></td>";
  $echo[$a][] = "<td><span class='diskio'>".my_diskio($data[1])."</span><span class='number'>".my_number(_var($Flash,'numWrites',0))."</span></td>";
  $echo[$a][] = "<td>".my_number(_var($Flash,'numErrors',0))."</td>";
  $echo[$a][] = fs_info($Flash,true);
  $echo[$a][] = "</tr>";
  $echo[$a] = implode($echo[$a]);

  $sum = initSum(); $i = 0;
  foreach ($pools as $pool) {
    $a = 'pool_device'.$i++;
    $echo[$a] = [];
    $root  = explode($_tilde_,$pool)[0];
    $print = array_filter(array_column($Cache,'name'),function($name) use ($pools,$root,$_tilde_) {$name_root=explode($_tilde_,$name)[0]; return in_array($name,$pools) && strcmp($root,$name_root)==0;});
    $print = end($print);
    if (_var($var,'fsState')=='Stopped') {
      $log = @parse_ini_file($pool_log) ?: []; // used to detect slot changes
      $off = false;
      foreach ($Cache as $disk) if (prefix(_var($disk,'name'))==$pool) {
        $echo[$a][] = array_offline($disk,$pool);
        $name = _var($disk,'name');
        // tilde is not allowed in array key - replace it
        $named = no_tilde($name);
        if (isset($log[$named])) $off |= ($log[$named] != _var($disk,'id')); elseif ($named) $log[$named] = _var($disk,'id');
      }
      $data = []; foreach ($log as $key => $value) $data[] = "$key=\"$value\"";
      $off &= !empty(_var($Cache[$root],'uuid'));
      file_put_contents($pool_log,implode("\n",$data));
      $echo[$a][] = "<tr class='tr_last'><td>"._('Slots').":</td><td colspan='8'><span class='slots'><span class='slots-left'>".cache_slots($off,$pool,_var($Cache[$pool],'devicesSb'),_var($Cache[$pool],'slots',0))."</span>";
      $zfsPool = strstr(_var($Cache[$pool],'fsType'),'zfs') && !isSubpool($pool);
      if ($zfsPool) {
        $current_subpools = array_filter($pools, function($element) use ($pool,$_tilde_) {return str_contains($element,"{$pool}{$_tilde_}");});
        $current_subpools_list = str_replace("{$pool}{$_tilde_}","", implode(',', $current_subpools));
        $echo[$a][] = "<input type='button' value='"._('Add Subpool')."' class='subpool button-small' onclick='addSubpoolPopup(\"$pool\",\"$current_subpools_list\")'".(count($current_subpools)<count($subpools)?'':' disabled').">";
      }
      $echo[$a][] = "</span></td><td></td></tr>";
    } else {
      foreach ($Cache as $disk) if (prefix($disk['name'])==$pool) {
        $fstype = str_replace('luks:','',_var($disk,'fsType'));
        $echo[$a][] = array_online($disk,$fstype);
      }
      if (strcmp($root,$pool)!=0) $Cache[$root]['devices'] += $Cache[$pool]['devices'];
      if (strcmp($pool,$print)==0) {
        delete_file($pool_log);
        if (_var($display,'total') && _var($Cache[$root],'devices',0)>1) $echo[$a][] = show_totals(sprintf(_('Pool of %s devices'),my_word($Cache[$root]['devices'])),false,"$root*");
        $sum = initSum();
      }
    }
    $echo[$a] = implode($echo[$a]);
  }

  $a = 'open_devices';
  $echo[$a] = [];
  foreach ($devs as $disk) {
    $dev = _var($disk,'device');
    $data = explode(' ',$diskio[$dev] ?? '0 0 0 0');
    $disk['type'] = 'New';
    $disk['color'] = $disk['spundown']=="0" ? 'blue-on' : 'blue-blink';
    $echo[$a][] = "<tr>";
    $echo[$a][] = "<td>".device_info($disk,true)."</td>";
    $echo[$a][] = "<td>".device_desc($disk)."</td>";
    $echo[$a][] = "<td>".my_temp($disk['temp'])."</td>";
    $echo[$a][] = "<td><span class='diskio'>".my_diskio($data[0])."</span><span class='number'>".my_number(_var($disk,'numReads',0))."</span></td>";
    $echo[$a][] = "<td><span class='diskio'>".my_diskio($data[1])."</span><span class='number'>".my_number(_var($disk,'numWrites',0))."</span></td>";
    $echo[$a][] = "<td>".my_number(_var($disk,'numErrors',0))."</td>";
    if (file_exists("/tmp/preclear_stat_$dev")) {
      $text = exec("cut -d'|' -f3 /tmp/preclear_stat_$dev|sed 's:\^n:\<br\>:g'");
      if (!str_contains($text,'Total time')) $text = _('Preclear in progress').'... '.$text;
      $echo[$a][] = "<td colspan='4'><em>$text</em></td>";
    } else {
      $echo[$a][] = "<td colspan='4'></td>";
    }
    $echo[$a][] = "</tr>";
  }
  $echo[$a] = implode($echo[$a]);

  $echo['stop'] = _var($var,'fsState')=='Stopped' ? 1 : 0;

  // publish without a timeout for no listeners
  publish('devices',json_encode($echo));
  $fs_new = _var($var,'fsState')=='Started' ? 1 : 0;
  publish('arraymonitor',$fs_new);

  // ping the page so we can terminate if nobody is listening
  ping('mainPingListener');
  sleep(1);
}
?>
