<?php
/*
 * 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 2 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.
 */
?>
<?php
/* vim: set ts=4 sw=4 et : */

require_once __DIR__ . "/check_auth.php";
require_once __DIR__ . "/../includes/common.php";

require_once __DIR__ . '/vendor/autoload.php';

require_once __DIR__ . "/twig.php";
require_once __DIR__ . "/lookup.php";

session_write_close();

$puid = "invalid";
if (isset($_SESSION['uid'])) {
    $puid = $_SESSION['uid'];
}

if (isset($_GET['id']) && ($_SESSION['admin'] || $_SESSION['commissioner'])) {
    $puid = $_GET['id'];
}

if (isset($_POST['uid']) && ($_SESSION['admin'] || $_SESSION['commissioner'])) {
    $puid = $_POST['uid'];
}

if (isset($_POST['ruid']) && $_SESSION['admin']) {
    $puid = $_POST['ruid'];
}

if (isset($_SESSION['commissioner']) && !isset($_SESSION['admin'])) {
    if (!uidInCommission($puid, $_SESSION['commissioner'])) {
        header("HTTP/1.0 404 Not Found");
        exit(0);
    }
}

$force = false;
if (isset($doFull) && $doFull) {
    if (isset($_GET['force']) && $_GET['force'])
        $force = true;
} else {
    $doFull = false;
}

if ($puid == 'invalid' && $puid == '') {
    $mysqli->close();
    exit(0);
}

$data = [
    'organisation' => $_POST['organisation'],
    'anrede' => $_POST['anrede'],
    'anrede_briefkopf' => $_POST['anrede_briefkopf'],
    'titel' => $_POST['titel'],
    'vorname' => $_POST['vorname'],
    'nachname' => $_POST['nachname'],
    'strasse' => $_POST['strasse'],
    'adresszusatz' => $_POST['adresszusatz'],
    'plz' => $_POST['plz'],
    'ort' => $_POST['ort'],
    'betreff' => $_POST['subject'],
    'text' => $_POST['html'],
    'datum' => $_POST['date'],
    'data' => $_POST['data'],
    'fn' => $_POST['fn']
];

define('NUMERAL_SIGN', 'minus');
define('NUMERAL_HUNDREDS_SUFFIX', 'hundert');
define('NUMERAL_INFIX', 'und');

$lNumeral = array('null', 'ein', 'zwei', 'drei', 'vier',
                  'fünf', 'sechs', 'sieben', 'acht', 'neun',
                  'zehn', 'elf', 'zwölf', 'dreizehn', 'vierzehn',
                  'fünfzehn', 'sechzehn', 'siebzehn', 'achtzehn', 'neunzehn');

$lTenner = array('', '', 'zwanzig', 'dreißig', 'vierzig',
                 'fünfzig', 'sechzig', 'siebzig', 'achtzig', 'neunzig');

$lGroupSuffix = array(array('s', ''),
                      array('tausend ', 'tausend '),
                      array('e Million ', ' Millionen '),
                      array('e Milliarde ', ' Milliarden '),
                      array('e Billion ', ' Billionen '),
                      array('e Billiarde ', ' Billiarden '),
                      array('e Trillion ', ' Trillionen '));

function num2text($pNumber)
{
    global $lNumeral;
    if ($pNumber == 0) {
        return $lNumeral[0];
    } elseif ($pNumber < 0) {
        return NUMERAL_SIGN . ' ' . num2text_group(abs($pNumber));
    } else {
        return num2text_group($pNumber);
    }
}

function num2text_group($pNumber, $pGroupLevel = 0)
{
    global $lNumeral, $lTenner, $lGroupSuffix;
    if ($pNumber == 0) {
        return '';
    }
    $lGroupNumber = $pNumber % 1000;
    if ($lGroupNumber == 1) {
        $lResult = $lNumeral[1] . $lGroupSuffix[$pGroupLevel][0];
    } elseif ($lGroupNumber > 1) {
        $lResult = '';
        $lFirstDigit = floor($lGroupNumber / 100);
        if ($lFirstDigit > 0) {
            $lResult .= $lNumeral[$lFirstDigit] . NUMERAL_HUNDREDS_SUFFIX;
        }
        $lLastDigits = $lGroupNumber % 100;
        $lSecondDigit = floor($lLastDigits / 10);
        $lThirdDigit = $lLastDigits % 10;
        if ($lLastDigits == 1) {
            $lResult .= $lNumeral[1] . 's';
        } elseif ($lLastDigits > 1 && $lLastDigits < 20) {
            $lResult .= $lNumeral[$lLastDigits];
        } elseif ($lLastDigits >= 20) {
            if ($lThirdDigit > 0) {
                $lResult .= $lNumeral[$lThirdDigit] . NUMERAL_INFIX;
            }
            $lResult .= $lTenner[$lSecondDigit];
        }
        $lResult .= $lGroupSuffix[$pGroupLevel][1];
    }
    return num2text_group(floor($pNumber / 1000), $pGroupLevel + 1) . $lResult;
}

try {
    $ddata = json_decode($_POST['data']);
    $data['data'] = $ddata;
    $data['betrag'] = number_format($ddata->Betrag, 2, ",", ".");
    $data['betrag_bs'] = num2text($ddata->Betrag) . ' Euro';
    $data['betrag_datum'] = explode('-', $ddata->Geldeingang)[2] . '.' . explode('-', $ddata->Geldeingang)[1] . '.' . explode('-', $ddata->Geldeingang)[0];
} catch (Exception $e) {
    ;
}

$template = $_POST['template'];
$template = 'hsrw.twig';

$html = $twig->render($template, $data);

$defaultConfig = (new Mpdf\Config\ConfigVariables())->getDefaults();
$fontDirs = $defaultConfig['fontDir'];

$defaultFontConfig = (new Mpdf\Config\FontVariables())->getDefaults();
$fontData = $defaultFontConfig['fontdata'];

$mpdf = new Mpdf\Mpdf([
    'tempDir' => __DIR__ . '/tmp',
    'format' => 'A4',
]);

//$mpdf->SetImportUse();
$mpdf->useActiveForms = true;
if (!strstr($template, 'zahlung')) {
    $mpdf->SetProtection(array('print'));
}
$mpdf->WriteHTML($html);
$mysqli->close();

if (isset($_GET['test'])) {
    header("Content-Type: application/pdf");
    $mpdf->Output();
    exit(0);
}

$fn = $_POST['fn'];

mkdir("/var/www/uploads/" . $puid . "_");
$file = "/var/www/uploads/" . $puid . "_/" . $fn . ".pdf";
$mpdf->Output($file, \Mpdf\Output\Destination::FILE);

if (isset($_GET['save'])) {
    echo "1";
    exit(0);
}

header("Content-Type: application/pdf");
readfile($file);
exit(0);

?>