<?php
require_once '../lib/Kendo/Autoload.php';

if ($_SERVER['REQUEST_METHOD'] == 'POST') {
    $type = $_GET['type'];
    if ($type == 'save') {
        $fileName = $_POST['fileName'];
        $contentType = $_POST['contentType'];
        $base64 = $_POST['base64'];

        $data = base64_decode($base64);

        header('Content-Type:' . $contentType);
        header('Content-Length:' . strlen($data));
        header('Content-Disposition: attachment; filename=' . $fileName);

        echo $data;
    }

    exit;
}

?>

<div class="box">
    <h4>Export chart</h4>
    <div class="box-col">
        <button class='export-pdf k-button'>Save as PDF</button>
    </div>
</div>

<script>
    $(".export-pdf").click(function() {
        $("#chart").getKendoChart().saveAsPDF();
    });
</script>

<?php
$title = new \Kendo\Dataviz\UI\ChartTitle();
$title->text('Gross domestic product growth \n /GDP annual %/')
      ->font('bold 16px "DejaVu Sans"');

$pdf = new \Kendo\Dataviz\UI\ChartPdf();
$pdf->fileName('Kendo UI Chart Export.pdf')
    ->proxyURL('pdf-export.php?type=save');

$india = new \Kendo\Dataviz\UI\ChartSeriesItem();
$india->name('India')
      ->data(array(3.907, 7.943, 7.848, 9.284, 9.263, 9.801, 3.890, 8.238, 9.552, 6.855));

$world = new \Kendo\Dataviz\UI\ChartSeriesItem();
$world->name('World')
      ->data(array(1.988, 2.733, 3.994, 3.464, 4.001, 3.939, 1.333, -2.245, 4.339, 2.727));

$haiti = new \Kendo\Dataviz\UI\ChartSeriesItem();
$haiti->name('Haiti')
      ->data(array(-0.253, 0.362, -3.519, 1.799, 2.252, 3.343, 0.843, 2.877, -5.416, 5.590));

$valueAxis = new \Kendo\Dataviz\UI\ChartValueAxisItem();

$valueAxis->labels(array('format' => '{0}%'))
          ->line(array('visible' => false))
          ->axisCrossingValue(-10);

$categoryAxis = new \Kendo\Dataviz\UI\ChartCategoryAxisItem();
$categoryAxis->categories(array(2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011))
             ->majorGridLines(array('visible' => false));


$tooltip = new \Kendo\Dataviz\UI\ChartTooltip();
$tooltip->visible(true)
        ->format('{0}%')
        ->template('#= series.name #: #= value #');

$chart = new \Kendo\Dataviz\UI\Chart('chart');
$chart->title($title)
      ->pdf($pdf)
      ->chartArea(array('background' => 'transparent'))
      ->legend(array('position' => 'bottom'))
      ->addSeriesItem($india, $world, $haiti)
      ->addValueAxisItem($valueAxis)
      ->addCategoryAxisItem($categoryAxis)
      ->tooltip($tooltip)
      ->seriesDefaults(array('type' => 'area', 'area' => array('line' => array('style' => 'smooth'))));

echo $chart->render();
?>

<style>
    #chart {
        background: center no-repeat url('../content/shared/styles/world-map.png');
    }
</style>

<!-- Load Pako ZLIB library to enable PDF compression -->
<script src="../content/shared/js/pako.min.js"></script>