<?php

require_once 'includes/common.inc.php';
global $redis, $config, $csrfToken, $server;

$page['css'][] = 'frame';
$page['js'][]  = 'frame';

require 'includes/header.inc.php';

if (!isset($_GET['key'])) {
  ?>
  Invalid key
  <?php

  require 'includes/footer.inc.php';
  die;
}

$type   = $redis->type($_GET['key']);
$exists = $redis->exists($_GET['key']);

$count_elements_page = isset($config['count_elements_page']) ? $config['count_elements_page'] : false;
$page_num_request    = isset($_GET['page']) ? (int)$_GET['page'] : 1;
$page_num_request    = $page_num_request === 0 ? 1 : $page_num_request;

?>
<h2><?php echo format_html($_GET['key'])?>
<?php if ($exists) { ?>
  <a href="rename.php?s=<?php echo $server['id']?>&amp;d=<?php echo $server['db']?>&amp;key=<?php echo urlencode($_GET['key'])?>"><img src="images/edit.png" width="16" height="16" title="Rename" alt="[R]"></a>
  <a href="delete.php?s=<?php echo $server['id']?>&amp;d=<?php echo $server['db']?>&amp;key=<?php echo urlencode($_GET['key'])?>" class="delkey"><img src="images/delete.png" width="16" height="16" title="Delete" alt="[X]"></a>
  <a href="export.php?s=<?php echo $server['id']?>&amp;d=<?php echo $server['db']?>&amp;key=<?php echo urlencode($_GET['key'])?>"><img src="images/export.png" width="16" height="16" title="Export" alt="[E]"></a>
<?php } ?>
</h2>
<?php

if (!$exists) {
  ?>
  This key does not exist.
  <?php

  require 'includes/footer.inc.php';
  die;
}

$alt      = false;
$ttl      = $redis->ttl($_GET['key']);

try {
  $encoding = $redis->object('encoding', $_GET['key']);
} catch (Exception $e) {
  $encoding = null;
}

switch ($type) {
  case 'string':
    $value = $redis->get($_GET['key']);
    $value = encodeOrDecode('load', $_GET['key'], $value);
    $size  = strlen($value);
    break;

  case 'hash':
    $values = $redis->hGetAll($_GET['key']);
    foreach ($values as $k => $value) {
      $values[$k] = encodeOrDecode('load', $_GET['key'], $value);
    }
    $size = count($values);
    ksort($values);
    break;

  case 'list':
    $size = $redis->lLen($_GET['key']);
    break;

  case 'set':
    $values = $redis->sMembers($_GET['key']);
    foreach ($values as $k => $value) {
      $values[$k] = encodeOrDecode('load', $_GET['key'], $value);
    }
    $size = count($values);
    sort($values);
    break;

  case 'zset':
    $values = $redis->zRange($_GET['key'], 0, -1);
    foreach ($values as $k => $value) {
      $values[$k] = encodeOrDecode('load', $_GET['key'], $value);
    }
    $size = count($values);
    break;
    
  default:
    $size = -1;
}
  
if (isset($values) && ($count_elements_page !== false)) {
  $values = array_slice($values, $count_elements_page * ($page_num_request - 1), $count_elements_page,true);
}

?>
<table>

<tr><td><div>Type:</div></td><td><div><?php echo format_html($type)?></div></td></tr>

<tr><td><div><abbr title="Time To Live">TTL</abbr>:</div></td><td><div><?php echo ($ttl == -1) ? 'does not expire' : format_ttl($ttl) ?> <a href="ttl.php?s=<?php echo $server['id']?>&amp;d=<?php echo $server['db']?>&amp;key=<?php echo urlencode($_GET['key'])?>&amp;ttl=<?php echo $ttl?>"><img src="images/edit.png" width="16" height="16" title="Edit TTL" alt="[E]" class="imgbut"></a></div></td></tr>

<?php if (!is_null($encoding)) { ?>
<tr><td><div>Encoding:</div></td><td><div><?php echo format_html($encoding)?></div></td></tr>
<?php } ?>

<tr><td><div>Size:</div></td><td><div>
<?php 
echo $size;

if ($type === 'string') {
    echo " characters";
} else if ($size < 0) {
    echo " (Type Unsupported)";
} else {
    echo " items";
}
?>
</div></td></tr>

</table>

<p>
<?php


// Build pagination div.
if (($count_elements_page !== false) && in_array($type, array('hash', 'list', 'set', 'zset')) && ($size > $count_elements_page)) {
    $prev       = $page_num_request - 1;
    $next       = $page_num_request + 1;
    $lastpage   = ceil($size / $count_elements_page);
    $lpm1       = $lastpage - 1;
    $adjacents  = 3;
    $pagination = '<div style="width: inherit; word-wrap: break-word;">';
    $url        = preg_replace('/&page=(\d+)/i', '', $_SERVER['REQUEST_URI']);

    if ($page_num_request > 1) $pagination .= "<a href=\"$url&page=$prev\">&#8592;</a>&nbsp;"; else
        $pagination .= "&#8592;&nbsp;";

    if ($lastpage < 7 + ($adjacents * 2)) { //not enough pages to bother breaking it up
        for ($counter = 1; $counter <= $lastpage; $counter++) {
            if ($counter == $page_num_request) $pagination .= $page_num_request . '&nbsp;'; else
                $pagination .= "<a href=\"$url&page=$counter\">$counter</a>&nbsp;";
        }
    } elseif ($lastpage > 5 + ($adjacents * 2)) { //enough pages to hide some

        if ($page_num_request < 1 + ($adjacents * 2)) { //close to beginning; only hide later pages
            for ($counter = 1; $counter < 4 + ($adjacents * 2); $counter++) {
                if ($counter == $page_num_request) $pagination .= $page_num_request . '&nbsp;'; else
                    $pagination .= "<a href=\"$url&page=$counter\">$counter</a>&nbsp;";
            }
            $pagination .= "...&nbsp;";
            $pagination .= "<a href=\"$url&page=$lpm1\">$lpm1</a>&nbsp;";
            $pagination .= "<a href=\"$url&page=$lastpage\">$lastpage</a>&nbsp;";
        } elseif ($lastpage - ($adjacents * 2) > $page_num_request && $page_num_request > ($adjacents * 2)) { //in middle; hide some front and some back
            $pagination .= "<a href=\"$url&page=1\">1</a>&nbsp;";
            $pagination .= "<a href=\"$url&page=2\">2</a>&nbsp;";
            $pagination .= "...&nbsp;";
            for ($counter = $page_num_request - $adjacents; $counter <= $page_num_request + $adjacents; $counter++) {
                if ($counter == $page_num_request) $pagination .= $page_num_request . '&nbsp;'; else
                    $pagination .= "<a href=\"$url&page=$counter\">$counter</a>&nbsp;";
            }
            $pagination .= "...&nbsp;";
            $pagination .= "<a href=\"$url&page=$lpm1\">$lpm1</a>&nbsp;";
            $pagination .= "<a href=\"$url&page=$lastpage\">$lastpage</a>&nbsp;";
        } else { //close to end; only hide early pages
            $pagination .= "<a href=\"$url&page=1\">1</a>&nbsp;";
            $pagination .= "<a href=\"$url&page=2\">2</a>&nbsp;";
            $pagination .= "...&nbsp;";
            for ($counter = $lastpage - (2 + ($adjacents * 2)); $counter <= $lastpage; $counter++) {
                if ($counter == $page_num_request) $pagination .= $page_num_request . '&nbsp;'; else
                    $pagination .= "<a href=\"$url&page=$counter\">$counter</a>&nbsp;";
            }
        }
    }
    if ($page_num_request < $counter - 1) $pagination .= "<a href=\"$url&page=$next\">&#8594;</a>&nbsp;"; else
        $pagination .= "&#8594;&nbsp;";
    $pagination .= "</div>";
}

if (isset($pagination)) {
    echo $pagination;
}


// String
if ($type == 'string') { ?>

<table>
<tr><td><div class=data><?php echo format_html($value)?></div></td><td><div>
  <a href="edit.php?s=<?php echo $server['id']?>&amp;d=<?php echo $server['db']?>&amp;type=string&amp;key=<?php echo urlencode($_GET['key'])?>"><img src="images/edit.png" width="16" height="16" title="Edit" alt="[E]"></a>
</div></td><td><div>
  <a href="delete.php?s=<?php echo $server['id']?>&amp;d=<?php echo $server['db']?>&amp;type=string&amp;key=<?php echo urlencode($_GET['key'])?>" class="delval"><img src="images/delete.png" width="16" height="16" title="Delete" alt="[X]"></a>
</div></td></tr>
</table>

<?php }



// Hash
else if ($type == 'hash') { ?>

<table>
<tr><th><div>Key</div></th><th><div>Value</div></th><th><div>&nbsp;</div></th><th><div>&nbsp;</div></th></tr>

<?php foreach ($values as $hkey => $value) { ?>
  <tr <?php echo $alt ? 'class="alt"' : ''?>><td><div><?php echo format_html($hkey)?></div></td><td><div class=data><?php echo format_html($value)?></div></td><td><div>
    <a href="edit.php?s=<?php echo $server['id']?>&amp;d=<?php echo $server['db']?>&amp;type=hash&amp;key=<?php echo urlencode($_GET['key'])?>&amp;hkey=<?php echo urlencode($hkey)?>"><img src="images/edit.png" width="16" height="16" title="Edit" alt="[E]"></a>
  </div></td><td><div>
    <a href="delete.php?s=<?php echo $server['id']?>&amp;d=<?php echo $server['db']?>&amp;type=hash&amp;key=<?php echo urlencode($_GET['key'])?>&amp;hkey=<?php echo urlencode($hkey)?>" class="delval"><img src="images/delete.png" width="16" height="16" title="Delete" alt="[X]"></a>
  </div></td></tr>
<?php $alt = !$alt; } ?>

<?php }


// List
else if ($type == 'list') { ?>

<table>
<tr><th><div>Index</div></th><th><div>Value</div></th><th><div>&nbsp;</div></th><th><div>&nbsp;</div></th></tr>

<?php 
  if (($count_elements_page === false) && ($size > $count_elements_page)) {
    $start = 0;
    $end   = $size;
  } else {
    $start = $count_elements_page * ($page_num_request - 1);
    $end   = min($start + $count_elements_page, $size);
  }

  for ($i = $start; $i < $end; ++$i) {
    $value = $redis->lIndex($_GET['key'], $i);
    $value = encodeOrDecode('load', $_GET['key'], $value);
?>
  <tr <?php echo $alt ? 'class="alt"' : ''?>><td><div><?php echo $i?></div></td><td><div class=data><?php echo format_html($value)?></div></td><td><div>
    <a href="edit.php?s=<?php echo $server['id']?>&amp;d=<?php echo $server['db']?>&amp;type=list&amp;key=<?php echo urlencode($_GET['key'])?>&amp;index=<?php echo $i?>"><img src="images/edit.png" width="16" height="16" title="Edit" alt="[E]"></a>
  </div></td><td><div>
    <a href="delete.php?s=<?php echo $server['id']?>&amp;d=<?php echo $server['db']?>&amp;type=list&amp;key=<?php echo urlencode($_GET['key'])?>&amp;index=<?php echo $i?>" class="delval"><img src="images/delete.png" width="16" height="16" title="Delete" alt="[X]"></a>
  </div></td></tr>
<?php $alt = !$alt; } ?>

<?php }



// Set
else if ($type == 'set') {

?>
<table>
<tr><th><div>Value</div></th><th><div>&nbsp;</div></th><th><div>&nbsp;</div></th></tr>

<?php foreach ($values as $value) {
  $display_value = $redis->exists($value) ? '<a href="view.php?s='.$server['id'].'&d='.$server['db'].'&key='.urlencode($value).'">'.format_html($value).'</a>' : format_html($value);
?>
  <tr <?php echo $alt ? 'class="alt"' : ''?>><td><div class=data><?php echo $display_value ?></div></td><td><div>
    <a href="edit.php?s=<?php echo $server['id']?>&amp;d=<?php echo $server['db']?>&amp;type=set&amp;key=<?php echo urlencode($_GET['key'])?>&amp;value=<?php echo urlencode($value)?>"><img src="images/edit.png" width="16" height="16" title="Edit" alt="[E]"></a>
  </div></td><td><div>
    <a href="delete.php?s=<?php echo $server['id']?>&amp;d=<?php echo $server['db']?>&amp;type=set&amp;key=<?php echo urlencode($_GET['key'])?>&amp;value=<?php echo urlencode($value)?>" class="delval"><img src="images/delete.png" width="16" height="16" title="Delete" alt="[X]"></a>
  </div></td></tr>
<?php $alt = !$alt; } ?>

<?php }



// ZSet
else if ($type == 'zset') { ?>

<table>
<tr><th><div>Score</div></th><th><div>Value</div></th><th><div>&nbsp;</div></th><th><div>&nbsp;</div></th></tr>

<?php foreach ($values as $value) {
  $score         = $redis->zScore($_GET['key'], $value);
  $display_value = $redis->exists($value) ? '<a href="view.php?s='.$server['id'].'&d='.$server['db'].'&key='.urlencode($value).'">'.format_html($value).'</a>' : format_html($value);
?>
  <tr <?php echo $alt ? 'class="alt"' : ''?>><td><div><?php echo $score?></div></td><td><div class=data><?php echo $display_value ?></div></td><td><div>
    <a href="edit.php?s=<?php echo $server['id']?>&amp;d=<?php echo $server['db']?>&amp;type=zset&amp;key=<?php echo urlencode($_GET['key'])?>&amp;score=<?php echo $score?>&amp;value=<?php echo urlencode($value)?>"><img src="images/edit.png" width="16" height="16" title="Edit" alt="[E]"></a>
    <a href="delete.php?s=<?php echo $server['id']?>&amp;d=<?php echo $server['db']?>&amp;type=zset&amp;key=<?php echo urlencode($_GET['key'])?>&amp;value=<?php echo urlencode($value)?>" class="delval"><img src="images/delete.png" width="16" height="16" title="Delete" alt="[X]"></a>
  </div></td></tr>
<?php $alt = !$alt; } ?>

<?php }

if ($type != 'string') { ?>
  </table>

  <p>
  <a href="edit.php?s=<?php echo $server['id']?>&amp;d=<?php echo $server['db']?>&amp;type=<?php echo $type?>&amp;key=<?php echo urlencode($_GET['key'])?>" class="add">Add another value</a>
  </p>
<?php }

if (isset($pagination)) {
  echo $pagination;
}

require 'includes/footer.inc.php';