<?php
//
// ZoneMinder web frame view file, $Date$, $Revision$
// 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.
//

require_once('includes/Frame.php');

$eid = validInt($_REQUEST['eid']);
$fid = empty($_REQUEST['fid']) ? 0 : validInt($_REQUEST['fid']);

$Event = new ZM\Event($eid);
if (!$Event->canView()) {
  $view = 'error';
  return;
}
$Monitor = $Event->Monitor();

# This is kinda weird.. so if we pass fid=0 or some other non-integer, then it loads max score
# perhaps we should consider being explicit, like fid = maxscore
if (!empty($fid)) {
  $sql = 'SELECT * FROM Frames WHERE EventId=? AND FrameId=?';
  if (!($frame = dbFetchOne($sql, NULL, array($eid, $fid))))
    $frame = array('EventId'=>$eid, 'FrameId'=>$fid, 'Type'=>'Normal', 'Score'=>0);
} else {
  $frame = dbFetchOne('SELECT * FROM Frames WHERE EventId=? AND Score=?', NULL, array($eid, $Event->MaxScore()));
}
$Frame = new ZM\Frame($frame);
$maxFid = $Event->Frames();

$firstFid = 1;
$prevFid = dbFetchOne('SELECT MAX(FrameId) AS FrameId FROM Frames WHERE EventId=? AND FrameId < ?', 'FrameId', array($eid, $fid));
$nextFid = dbFetchOne('SELECT MIN(FrameId) AS FrameId FROM Frames WHERE EventId=? AND FrameId > ?', 'FrameId', array($eid, $fid));
$lastFid = dbFetchOne('SELECT MAX(FrameId) AS FrameId FROM Frames WHERE EventId=?', 'FrameId', array($eid));

$alarmFrame = ( $Frame->Type() == 'Alarm' ) ? 1 : 0;

if (isset($_REQUEST['scale'])) {
  $scale = validNum($_REQUEST['scale']);
} else if (isset($_COOKIE['zmWatchScale'.$Monitor->Id()])) {
  $scale = validNum($_COOKIE['zmWatchScale'.$Monitor->Id()]);
} else if (isset($_COOKIE['zmWatchScale'])) {
  $scale = validNum($_COOKIE['zmWatchScale']);
} else {
  $scale = max(reScale(SCALE_BASE, $Monitor->DefaultScale(), ZM_WEB_DEFAULT_SCALE), SCALE_BASE);
}
$scale = $scale ? $scale : 0;

$imageData = $Event->getImageSrc($frame, $scale, 0);
if (!$imageData) {
  ZM\Error("No data found for Event $eid frame $fid");
  $imageData = array();
}

$show = 'capt';
if (isset($_REQUEST['show']) && in_array($_REQUEST['show'], array('capt', 'anal'))) {
  $show = $_REQUEST['show'];
  if ($show == 'anal' and ! $imageData['hasAnalImage']) {
    $show = 'capt';
  }
} else if ($imageData['hasAnalImage']) {
  $show = 'anal';
}

$imagePath = $imageData['thumbPath'];
$eventPath = $imageData['eventPath'];
$dImagePath = sprintf('%s/%0'.ZM_EVENT_IMAGE_DIGITS.'d-diag-d.jpg', $eventPath, $Frame->FrameId());
$rImagePath = sprintf('%s/%0'.ZM_EVENT_IMAGE_DIGITS.'d-diag-r.jpg', $eventPath, $Frame->FrameId());

$focusWindow = true;

xhtmlHeaders(__FILE__, translate('Frame').' - '.$Event->Id().' - '.$Frame->FrameId());
?>
<body>
  <?php echo getNavBarHTML() ?>
  <div id="page p-0">
    <div class="d-flex flex-row justify-content-between px-3 pt-1">
      <div id="toolbar" >
        <button type="button" id="backBtn" class="btn btn-normal" data-toggle="tooltip" data-placement="top" title="<?php echo translate('Back') ?>" disabled><i class="fa fa-arrow-left"></i></button>
        <button type="button" id="refreshBtn" class="btn btn-normal" data-toggle="tooltip" data-placement="top" title="<?php echo translate('Refresh') ?>" ><i class="fa fa-refresh"></i></button>
        <button type="button" id="statsBtn" class="btn btn-normal" data-toggle="tooltip" data-placement="top" title="<?php echo translate('Stats') ?>" ><i class="fa fa-info"></i></button>
        <button type="button" id="statsViewBtn" class="btn btn-normal" data-toggle="tooltip" data-placement="top" title="<?php echo translate('Stats').' '.translate('View') ?>" ><i class="fa fa-table"></i></button>
      </div>
      
      <h2><?php echo translate('Frame') ?> <?php echo $Event->Id().'-'.$Frame->FrameId().' ('.$Frame->Score().')' ?></h2>
      
      <form>
        <div id="scaleControl">
          <label for="scale"><?php echo translate('Scale') ?></label>
          <?php echo htmlSelect('scale', $scales, $scale, array('data-on-change'=>'changeScale','id'=>'scale')); ?>
        </div>
        <input type="hidden" name="base_width" id="base_width" value="<?php echo $Event->Width(); ?>"/>
        <input type="hidden" name="base_height" id="base_height" value="<?php echo $Event->Height(); ?>"/>
      </form>
    </div>
    
    <div id="content" class="d-flex flex-row justify-content-center">
      <table id="frameStatsTable" class="table-sm table-borderless pr-3">
      <!-- FRAME STATISTICS POPULATED BY AJAX -->
      </table>
      <div>
        <p id="image">
<?php
if ($imageData['hasAnalImage']) {
  echo sprintf('<a href="?view=frame&amp;eid=%d&amp;fid=%d&scale=%d&amp;show=%s" title="Click to display frame %s analysis">',
    $Event->Id(), $Frame->FrameId(), $scale,
    ($show=='anal'?'capt':'anal'),
    ($show=='anal'?'without':'with')
  );
}
?>
<img id="frameImg"
  src="<?php echo validHtmlStr($Frame->getImageSrc($show=='anal'?'analyse':'capture')) ?>"
  width="<?php echo reScale($Event->Width(), $Monitor->DefaultScale(), $scale) ?>"
  height="<?php echo reScale($Event->Height(), $Monitor->DefaultScale(), $scale) ?>"
  alt="<?php echo $Frame->EventId().'-'.$Frame->FrameId() ?>"
  class="<?php echo $imageData['imageClass'] ?>"
  loading="lazy"
/>
<?php
if ($imageData['hasAnalImage']) { ?></a><?php } ?>
        </p>
<?php
  $frame_url_base = '?view=frame&amp;eid='.$Event->Id().'&amp;scale='.$scale.'&amp;show='.$show.'&amp;fid=';
?>
        <p id="controls">
          <a id="firstLink" <?php echo (( $Frame->FrameId() > 1 ) ? 'href="'.$frame_url_base.$firstFid.'" class="btn-primary"' : 'class="btn-primary disabled"') ?>><?php echo translate('First') ?></a>
          <a id="prevLink" <?php echo ( $Frame->FrameId() > 1 ) ? 'href="'.$frame_url_base.$prevFid.'" class="btn-primary"' : 'class="btn-primary disabled"' ?>><?php echo translate('Prev') ?></a>
          <a id="nextLink" <?php echo ( $Frame->FrameId() < $maxFid ) ? 'href="'.$frame_url_base.$nextFid.'" class="btn-primary"' : 'class="btn-primary disabled"' ?>><?php echo translate('Next') ?></a>
          <a id="lastLink" <?php echo ( $Frame->FrameId() < $maxFid ) ? 'href="'.$frame_url_base.$lastFid .'" class="btn-primary"' : 'class="btn-primary disabled"' ?>><?php echo translate('Last') ?></a>
        </p>
<?php
if (file_exists($dImagePath)) {
?>
        <p id="diagImagePath"><?php echo $dImagePath ?></p>
        <p id="diagImage">
          <img
            src="<?php echo viewImagePath($dImagePath) ?>"
            width="<?php echo reScale($Event->Width(), $Monitor->DefaultScale(), $scale) ?>"
            height="<?php echo reScale($Event->Height(), $Monitor->DefaultScale(), $scale) ?>"
            class="<?php echo $imageData['imageClass'] ?>"
          />
        </p>
<?php
}
if (file_exists($rImagePath)) {
?>
        <p id="refImagePath"><?php echo $rImagePath ?></p>
        <p id="refImage">
          <img
            src="<?php echo viewImagePath($rImagePath) ?>"
            width="<?php echo reScale($Event->Width(), $Monitor->DefaultScale(), $scale) ?>"
            height="<?php echo reScale($Event->Height(), $Monitor->DefaultScale(), $scale) ?>"
            class="<?php echo $imageData['imageClass'] ?>"
          />
        </p>
      </div>
<?php } ?>
    </div>
  </div>
<?php xhtmlFooter() ?>
