<?php

require_once WWW_PATH . '/_lib/qs-config/tcPdf.php';
require_once BASE_PATH . '/lib/tcpdf/tcpdf.php';

class Qs_TcPdf extends TCPDF
{
    protected $_config;

    public function __construct()
    {
        $config = $this->_getConfig();

        $orientation = isset($config['orientation']) ? $config['orientation'] : 'P';
        $unit = isset($config['unit']) ? $config['unit'] : 'mm';
        $format = isset($config['format']) ? $config['format'] : 'LETTER';
        $unicode = isset($config['unicode']) ? $config['unicode'] : true;
        $encoding = isset($config['encoding']) ? $config['encoding'] : 'UTF-8';
        $diskcache = isset($config['diskcache']) ? $config['diskcache'] : false;
        $pdfa = isset($config['pdfa']) ? $config['pdfa'] : false;

        if (!is_dir(K_PATH_CACHE) && !mkdir(K_PATH_CACHE)) {
            throw new Exception('Can not create TCPDF cache folder "' . K_PATH_CACHE . '"');
        }

        parent::__construct($orientation, $unit, $format, $unicode, $encoding, $diskcache, $pdfa);
        $this->_init();
        return $this;
    }

    protected function _init()
    {
        $config = $this->_getConfig();
        if (isset($config['imageScaleRatio'])) {
            $this->setImageScale((float) $config['imageScaleRatio']);
        }
        if (!empty($config['addEmptyPage'])) {
            $this->addPage();
        }
        return $this;
    }

    protected function _getConfig()
    {
        if (null === $this->_config) {
            $this->_config = Qs_Config::getByInstance($this)->toArray();
        }
        return $this->_config;
    }

}