shopPRO/admin/templates/update/main-view.php

<div class="panel">
  <div class="panel-heading">
    <span class="panel-title">Aktualizacja systemu</span>
  </div>
  <div class="panel-body">
    <div class="form-group">
      <label class="control-label col-lg-4">Twoja wersja systemu</label>
      <div class="col-lg-8">
        <p class="form-control-static"><?= $this->ver; ?></p>
      </div>
    </div>
    <div class="form-group">
      <label class="control-label col-lg-4">Aktualna wersja systemu</label>
      <div class="col-lg-8">
        <p class="form-control-static"><?= $this->new_ver; ?></p>
      </div>
    </div>

    <div class="progress-box hidden">
      <div class="version">
        <h3>Aktualizacja <span class="version_curent">0</span> / <span class="version_diff">0</span></h3>
      </div>
      <div class="progress">
        <div class="progress-bar progress-bar-info progress-bar-striped active" role="progressbar"
             aria-valuenow="0" aria-valuemin="0" aria-valuemax="100" style="width: 0%">
        </div>
      </div>
    </div>

    <? if ( $this->ver < $this->new_ver ): ?>
      <div class="row mt15">
        <div class="form-group col-lg-6 text-right">
          <a href="#" class="btn btn-system btn-sm mb5" id="confirm">Aktualizuj do wyższej wersji</a>
        </div>
        <div class="form-group col-lg-6">
          <a href="#" class="btn btn-system btn-sm mb5" id="confirmUpdateAll">Aktualizuj do najwyższej wersji</a>
        </div>
      </div>
      <div class="text-danger text-center">* Przed aktualizacją systemu zalecane jest wykonanie pełnej kopii zapasowej.</div>
    <? endif; ?>
  </div>
</div>

<? if ( !empty( $this->log ) ): ?>
<div class="panel">
  <div class="panel-heading">
    <span class="panel-title">Log ostatniej aktualizacji</span>
  </div>
  <div class="panel-body">
    <pre style="max-height: 400px; overflow-y: auto; font-size: 12px;"><?= htmlspecialchars( $this->log ); ?></pre>
  </div>
</div>
<? endif; ?>

<script type="text/javascript">
$(function() {
  var version_current = <?= $this->ver; ?>;
  var version_new     = <?= $this->new_ver; ?>;
  var version_diff    = Math.round( ( version_new - version_current ) * 1000 );
  var width           = 0;
  var ac_lp           = 0;

  $( '#confirm' ).on( 'click', function( e ) {
    e.preventDefault();
    $.confirm({
      title: 'Potwierdź',
      content: 'Na pewno chcesz dokonać aktualizacji systemu?',
      buttons: {
        tak: function() {
          document.location.href = '/admin/update/update/';
        },
        nie: function() {}
      }
    });
  });

  $( '#confirmUpdateAll' ).on( 'click', function( e ) {
    e.preventDefault();
    $.confirm({
      title: 'Potwierdź',
      content: 'Na pewno chcesz dokonać aktualizacji systemu do najwyższej wersji?',
      buttons: {
        tak: function() {
          $( '.progress-box' ).removeClass( 'hidden' );
          $( '#confirm' ).css( 'pointer-events', 'none' );
          $( '#confirmUpdateAll' ).css( 'pointer-events', 'none' );
          $( '.version_diff' ).html( version_diff );
          updateAll( version_current, version_new, version_diff, width, ac_lp );
        },
        nie: function() {}
      }
    });
  });

  function updateAll( version_current, version_new, version_diff, width, ac_lp ) {
    $.ajax({
      url: '/admin/update/updateAll/',
      type: 'POST',
      data: { version_current: version_current },
      success: function( data ) {
        var response = jQuery.parseJSON( data );
        if ( response.status == true ) {
          ac_lp = ac_lp + 1;
          $( '.version_curent' ).html( ac_lp );
          width = width + ( ( 1 / version_diff ) * 100 );
          $( '.progress-bar' ).css( 'width', width + '%' );
          if ( response.version < version_new ) {
            updateAll( response.version, version_new, version_diff, width, ac_lp );
          } else {
            $.alert({
              title: 'Informacja',
              content: 'Aktualizacja przebiegła pomyślnie.',
              onClose: function() {
                window.location.href = '/admin/update/main_view/';
              }
            });
          }
        } else {
          $.alert({
            title: 'Błąd',
            content: 'W trakcie aktualizacji systemu wystąpił błąd. Proszę spróbować ponownie.',
            onClose: function() {
              window.location.href = '/admin/update/main_view/';
            }
          });
        }
      }
    });
  }
});
</script>

<div class="panel">
  <div class="panel-heading">
    <span class="panel-title">Changelog</span>
  </div>
  <div class="panel-body">
    <?php
    $changelog = (string) @file_get_contents( 'https://shoppro.project-dc.pl/updates/changelog.php?ver=' . $this->ver );
    $changelog = preg_replace( '/<!--.*?-->/s', '', $changelog );
    $changelog = strip_tags( $changelog, '<p><br><b><strong><i><em><u><ul><ol><li><h1><h2><h3><h4><h5><h6><span><div><a><pre><code><hr>' );
    echo $changelog;
    ?>
  </div>
</div>