<?php
/**
 * webtrees: online genealogy
 * Copyright (C) 2016 webtrees development team
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */
namespace Fisharebest\Webtrees\Report;

use Fisharebest\Webtrees\Auth;
use Fisharebest\Webtrees\Media;

/**
 * Class ReportPdf
 */
class ReportPdf extends ReportBase {
	/**
	 * PDF compression - Zlib extension is required
	 *
	 * @var bool const
	 */
	const COMPRESSION = true;
	/**
	 * If true reduce the RAM memory usage by caching temporary data on filesystem (slower).
	 *
	 * @var bool const
	 */
	const DISK_CACHE = false;
	/**
	 * true means that the input text is unicode (PDF)
	 *
	 * @var bool const
	 */
	const UNICODE = true;
	/**
	 * false means that the full font is embedded, true means only the used chars
	 * in TCPDF v5.9 font subsetting is a very slow process, this leads to larger files
	 *
	 * @var bool const
	 */
	const SUBSETTING = false;
	/**
	 * A new object of the PDF class
	 *
	 * @var ReportTcpdf
	 */
	public $pdf;

	/**
	 * PDF Setup - ReportPdf
	 */
	public function setup() {
		parent::setup();

		// Setup the PDF class with custom size pages because WT supports more page sizes. If WT sends an unknown size name then the default would be A4
		$this->pdf = new ReportTcpdf($this->orientation, parent::UNITS, array(
			$this->pagew,
			$this->pageh,
		), self::UNICODE, "UTF-8", self::DISK_CACHE);

		// Setup the PDF margins
		$this->pdf->SetMargins($this->leftmargin, $this->topmargin, $this->rightmargin);
		$this->pdf->setHeaderMargin($this->headermargin);
		$this->pdf->setFooterMargin($this->footermargin);
		//Set auto page breaks
		$this->pdf->SetAutoPageBreak(true, $this->bottommargin);
		// Set font subsetting
		$this->pdf->setFontSubsetting(self::SUBSETTING);
		// Setup PDF compression
		$this->pdf->SetCompression(self::COMPRESSION);
		// Setup RTL support
		$this->pdf->setRTL($this->rtl);
		// Set the document information
		// Only admin should see the version number
		$appversion = WT_WEBTREES;
		if (Auth::isAdmin()) {
			$appversion .= " " . WT_VERSION;
		}
		$this->pdf->SetCreator($appversion . " (" . parent::WT_URL . ")");
		// Not implemented yet - ReportBase::setup()
		$this->pdf->SetAuthor($this->rauthor);
		$this->pdf->SetTitle($this->title);
		$this->pdf->SetSubject($this->rsubject);
		$this->pdf->SetKeywords($this->rkeywords);

		$this->pdf->setReport($this);

		if ($this->showGenText) {
			// The default style name for Generated by.... is 'genby'
			$element = new ReportPdfCell(0, 10, 0, "C", "", "genby", 1, ".", ".", 0, 0, "", "", true);
			$element->addText($this->generatedby);
			$element->setUrl(parent::WT_URL);
			$this->pdf->addFooter($element);
		}
	}

	/**
	 * Add an element - ReportPdf
	 *
	 * @param object|string $element Object or string
	 *
	 * @return int
	 */
	public function addElement($element) {
		if ($this->processing == "B") {
			return $this->pdf->addBody($element);
		} elseif ($this->processing == "H") {
			return $this->pdf->addHeader($element);
		} elseif ($this->processing == "F") {
			return $this->pdf->addFooter($element);
		}

		return 0;
	}

	/**
	 * Run the report.
	 */
	public function run() {
		$this->pdf->body();
		header('Expires:');
		header('Pragma:');
		header('Cache-control:');
		$this->pdf->Output('webtrees-' . uniqid() . '.pdf', 'I');
	}

	/**
	 * Clear the Header - ReportPdf
	 */
	public function clearHeader() {
		$this->pdf->clearHeader();
	}

	/**
	 * Clear the Page Header - ReportPdf
	 */
	public function clearPageHeader() {
		$this->pdf->clearPageHeader();
	}

	/**
	 * Create a new Cell object - ReportPdf
	 *
	 * @param int    $width   cell width (expressed in points)
	 * @param int    $height  cell height (expressed in points)
	 * @param mixed  $border  Border style
	 * @param string $align   Text alignement
	 * @param string $bgcolor Background color code
	 * @param string $style   The name of the text style
	 * @param int    $ln      Indicates where the current position should go after the call
	 * @param mixed  $top     Y-position
	 * @param mixed  $left    X-position
	 * @param int    $fill    Indicates if the cell background must be painted (1) or transparent (0). Default value: 1
	 * @param int    $stretch Stretch carachter mode
	 * @param string $bocolor Border color
	 * @param string $tcolor  Text color
	 * @param bool   $reseth
	 *
	 * @return ReportPdfCell
	 */
	public function createCell(
		$width, $height, $border, $align, $bgcolor, $style, $ln, $top, $left, $fill, $stretch, $bocolor, $tcolor, $reseth
	) {
		return new ReportPdfCell($width, $height, $border, $align, $bgcolor, $style, $ln, $top, $left, $fill, $stretch, $bocolor, $tcolor, $reseth);
	}

	/**
	 * Create a new TextBox object - ReportPdf
	 *
	 * @param float  $width   Text box width
	 * @param float  $height  Text box height
	 * @param bool   $border
	 * @param string $bgcolor Background color code in HTML
	 * @param bool   $newline
	 * @param mixed  $left
	 * @param mixed  $top
	 * @param bool   $pagecheck
	 * @param string $style
	 * @param bool   $fill
	 * @param bool   $padding
	 * @param bool   $reseth
	 *
	 * @return ReportPdfTextbox
	 */
	public function createTextBox(
		$width, $height, $border, $bgcolor, $newline, $left, $top, $pagecheck, $style, $fill, $padding, $reseth
	) {
		return new ReportPdfTextbox($width, $height, $border, $bgcolor, $newline, $left, $top, $pagecheck, $style, $fill, $padding, $reseth);
	}

	/**
	 * Create a new Text object- ReportPdf
	 *
	 * @param string $style The name of the text style
	 * @param string $color HTML color code
	 *
	 * @return ReportPdfText
	 */
	public function createText($style, $color) {
		return new ReportPdfText($style, $color);
	}

	/**
	 * Create a new Footnote object - ReportPdf
	 *
	 * @param string $style Style name
	 *
	 * @return ReportPdfFootnote
	 */
	public function createFootnote($style) {
		return new ReportPdfFootnote($style);
	}

	/**
	 * Create a new Page Header object - ReportPdf
	 *
	 * @return ReportPdfPageheader
	 */
	public function createPageHeader() {
		return new ReportPdfPageheader;
	}

	/**
	 * Create a new image object - ReportPdf
	 *
	 * @param string  $file  Filename
	 * @param mixed   $x
	 * @param mixed   $y
	 * @param int $w     Image width
	 * @param int $h     Image height
	 * @param string  $align L:left, C:center, R:right or empty to use x/y
	 * @param string  $ln    T:same line, N:next line
	 *
	 * @return ReportPdfImage
	 */
	public function createImage($file, $x, $y, $w, $h, $align, $ln) {
		return new ReportPdfImage($file, $x, $y, $w, $h, $align, $ln);
	}

	/**
	 * Create a new image object from Media Object - ReportPdf
	 *
	 * @param Media  $mediaobject
	 * @param mixed  $x
	 * @param mixed  $y
	 * @param int    $w           Image width
	 * @param int    $h           Image height
	 * @param string $align       L:left, C:center, R:right or empty to use x/y
	 * @param string $ln          T:same line, N:next line
	 *
	 * @return ReportPdfImage
	 */
	public function createImageFromObject($mediaobject, $x, $y, $w, $h, $align, $ln) {
		return new ReportPdfImage($mediaobject->getServerFilename('thumb'), $x, $y, $w, $h, $align, $ln);
	}

	/**
	 * Create a new line object - ReportPdf
	 *
	 * @param mixed $x1
	 * @param mixed $y1
	 * @param mixed $x2
	 * @param mixed $y2
	 *
	 * @return ReportPdfLine
	 */
	public function createLine($x1, $y1, $x2, $y2) {
		return new ReportPdfLine($x1, $y1, $x2, $y2);
	}

	/**
	 * Create an HTML element.
	 *
	 * @param $tag
	 * @param $attrs
	 *
	 * @return ReportPdfHtml
	 */
	public function createHTML($tag, $attrs) {
		return new ReportPdfHtml($tag, $attrs);
	}
}