<?php

/**
* This file is part of FPDI
*
* @package setasign\Fpdi
* @copyright Copyright (c) 2024 Setasign GmbH & Co. KG (https://www.setasign.com)
* @license http://opensource.org/licenses/mit-license The MIT License
*/

namespace setasign\Fpdi;

use setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException;
use setasign\Fpdi\PdfParser\PdfParserException;
use setasign\Fpdi\PdfParser\Type\PdfIndirectObject;
use setasign\Fpdi\PdfParser\Type\PdfNull;
use setasign\Fpdi\PdfParser\Type\PdfType;

/**
* This trait is used for the implementation of FPDI in FPDF and tFPDF.
*/
trait FpdfTrait
{
protected function _enddoc()
{
parent::_enddoc();
$this->cleanUp();
}

/**
* Draws an imported page or a template onto the page or another template.
*
* Give only one of the size parameters (width, height) to calculate the other one automatically in view to the
* aspect ratio.
*
* @param mixed $tpl The template id
* @param float|int|array $x The abscissa of upper-left corner. Alternatively you could use an assoc array
* with the keys "x", "y", "width", "height", "adjustPageSize".
* @param float|int $y The ordinate of upper-left corner.
* @param float|int|null $width The width.
* @param float|int|null $height The height.
* @param bool $adjustPageSize
* @return array The size
* @see Fpdi::getTemplateSize()
*/
public function useTemplate($tpl, $x = 0, $y = 0, $width = null, $height = null, $adjustPageSize = false)
{
if (isset($this->importedPages[$tpl])) {
$size = $this->useImportedPage($tpl, $x, $y, $width, $height, $adjustPageSize);
if ($this->currentTemplateId !== null) {
$this->templates[$this->currentTemplateId]['resources']['templates']['importedPages'][$tpl] = $tpl;
}
return $size;
}

return parent::useTemplate($tpl, $x, $y, $width, $height, $adjustPageSize);
}

/**
* Get the size of an imported page or template.
*
* Give only one of the size parameters (width, height) to calculate the other one automatically in view to the
* aspect ratio.
*
* @param mixed $tpl The template id
* @param float|int|null $width The width.
* @param float|int|null $height The height.
* @return array|bool An array with following keys: width, height, 0 (=width), 1 (=height), orientation (L or P)
*/
public function getTemplateSize($tpl, $width = null, $height = null)
{
$size = parent::getTemplateSize($tpl, $width, $height);
if ($size === false) {
return $this->getImportedPageSize($tpl, $width, $height);
}

return $size;
}

/**
* @throws CrossReferenceException
* @throws PdfParserException
*/
protected function _putimages()
{
$this->currentReaderId = null;
parent::_putimages();

foreach ($this->importedPages as $key => $pageData) {
$this->_newobj();
$this->importedPages[$key]['objectNumber'] = $this->n;
$this->currentReaderId = $pageData['readerId'];
$this->writePdfType($pageData['stream']);
$this->_put('endobj');
}

foreach (\array_keys($this->readers) as $readerId) {
$parser = $this->getPdfReader($readerId)->getParser();
$this->currentReaderId = $readerId;

while (($objectNumber = \array_pop($this->objectsToCopy[$readerId])) !== null) {
try {
$object = $parser->getIndirectObject($objectNumber);
} catch (CrossReferenceException $e) {
if ($e->getCode() === CrossReferenceException::OBJECT_NOT_FOUND) {
$object = PdfIndirectObject::create($objectNumber, 0, new PdfNull());
} else {
throw $e;
}
}

$this->writePdfType($object);
}
}

$this->currentReaderId = null;
}

/**
* @inheritdoc
*/
protected function _putxobjectdict()
{
foreach ($this->importedPages as $pageData) {
$this->_put('/' . $pageData['id'] . ' ' . $pageData['objectNumber'] . ' 0 R');
}

parent::_putxobjectdict();
}

/**
* @param int $n
* @return void
* @throws PdfParser\Type\PdfTypeException
*/
protected function _putlinks($n)
{
foreach ($this->PageLinks[$n] as $pl) {
$this->_newobj();
$rect = sprintf('%.2F %.2F %.2F %.2F', $pl[0], $pl[1], $pl[0] + $pl[2], $pl[1] - $pl[3]);
$this->_put('<</Type /Annot /Subtype /Link /Rect [' . $rect . ']', false);
if (is_string($pl[4])) {
if (isset($pl['importedLink'])) {
$this->_put('/A <</S /URI /URI (' . $this->_escape($pl[4]) . ')>>');
$values = $pl['importedLink']['pdfObject']->value;

foreach ($values as $name => $entry) {
$this->_put('/' . $name . ' ', false);
$this->writePdfType($entry);
}

if (isset($pl['quadPoints'])) {
$s = '/QuadPoints[';
foreach ($pl['quadPoints'] as $value) {
$s .= sprintf('%.2F ', $value);
}
$s .= ']';
$this->_put($s);
}
} else {
$this->_put('/A <</S /URI /URI ' . $this->_textstring($pl[4]) . '>>');
$this->_put('/Border [0 0 0]', false);
}
$this->_put('>>');
} else {
$this->_put('/Border [0 0 0] ', false);
$l = $this->links[$pl[4]];
if (isset($this->PageInfo[$l[0]]['size'])) {
$h = $this->PageInfo[$l[0]]['size'][1];
} else {
$h = ($this->DefOrientation === 'P')
? $this->DefPageSize[1] * $this->k
: $this->DefPageSize[0] * $this->k;
}
$this->_put(sprintf(
'/Dest [%d 0 R /XYZ 0 %.2F null]>>',
$this->PageInfo[$l[0]]['n'],
$h - $l[1] * $this->k
));
}
$this->_put('endobj');
}
}

protected function _put($s, $newLine = true)
{
if ($newLine) {
$this->buffer .= $s . "\n";
} else {
$this->buffer .= $s;
}
}
}