<?php
/* Copyright (C) 2026 Eduard Wisch <data@data-it-solution.de>
 *
 * 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 <https://www.gnu.org/licenses/>.
 */

/**
 *  \file       netdiag/lib/netdiag_pdf.lib.php
 *  \ingroup    netdiag
 *  \brief      PDF-Generator für Diagnose-Protokolle
 */

require_once DOL_DOCUMENT_ROOT.'/core/lib/pdf.lib.php';
require_once DOL_DOCUMENT_ROOT.'/core/lib/files.lib.php';
require_once DOL_DOCUMENT_ROOT.'/societe/class/societe.class.php';
require_once DOL_DOCUMENT_ROOT.'/commande/class/commande.class.php';
require_once __DIR__.'/netdiag.lib.php';
require_once __DIR__.'/../class/netdiagdevice.class.php';
require_once __DIR__.'/../class/netdiagmeasurement.class.php';

/**
 * Ein Diagnose-Protokoll als PDF erzeugen und im Dokumentenverzeichnis ablegen.
 *
 * @param  DoliDB          $db          Datenbank-Handler
 * @param  NetDiagProtocol $protocol    Protokoll-Objekt (geladen)
 * @param  Translate       $outputlangs Sprache der Ausgabe
 * @return int                          >0 wenn OK, <=0 bei Fehler
 */
function netdiagGeneratePdf($db, $protocol, $outputlangs)
{
	global $conf, $mysoc, $langs;

	$outputlangs->loadLangs(array("netdiag@netdiag", "main", "companies", "orders"));

	$dir = netdiagGetOutputDir().'/'.dol_sanitizeFileName($protocol->ref);
	if (!dol_is_dir($dir)) {
		if (dol_mkdir($dir) < 0) {
			$protocol->error = 'Konnte Verzeichnis nicht anlegen: '.$dir;
			return -1;
		}
	}
	$file = $dir.'/'.dol_sanitizeFileName($protocol->ref).'.pdf';

	// Daten laden
	$soc = new Societe($db);
	if ($protocol->fk_soc > 0) {
		$soc->fetch($protocol->fk_soc);
	}
	$devObj = new NetDiagDevice($db);
	$devices = $devObj->fetchAllByProtocol($protocol->id);
	$measObj = new NetDiagMeasurement($db);
	$measurements = $measObj->fetchAllByProtocol($protocol->id);

	// PDF aufbauen
	$pdf = pdf_getInstance('A4', 'mm', 'P');
	$default_font_size = pdf_getPDFFontSize($outputlangs);
	$pdf->SetAutoPageBreak(true, 20);
	$pdf->SetMargins(15, 15, 15);
	$pdf->SetTitle($protocol->ref);
	$pdf->SetSubject($outputlangs->transnoentities("NetDiagProtocol"));
	$pdf->SetCreator("Dolibarr ".DOL_VERSION." - NetDiag");
	$pdf->SetAuthor($mysoc->name);
	$pdf->AddPage();

	// Kopf
	$pdf->SetFont('', 'B', 16);
	$pdf->SetTextColor(0, 70, 130);
	$pdf->Cell(0, 8, $outputlangs->transnoentities("NetDiagProtocol").' '.$protocol->ref, 0, 1, 'L');
	$pdf->SetTextColor(0, 0, 0);
	$pdf->SetFont('', '', 9);
	$pdf->Cell(0, 5, $mysoc->name, 0, 1, 'L');
	$pdf->Ln(3);

	// Stammdaten
	$pdf->SetFont('', '', 10);
	$infos = array(
		$outputlangs->transnoentities("ThirdParty") => ($soc->id > 0 ? $soc->name : '-'),
		$outputlangs->transnoentities("DateDiag") => dol_print_date($protocol->date_diag, 'dayhour', false, $outputlangs),
		$outputlangs->transnoentities("Location") => ($protocol->standort ? $protocol->standort : '-'),
		$outputlangs->transnoentities("Subnet") => ($protocol->subnet ? $protocol->subnet : '-'),
	);
	foreach ($infos as $k => $v) {
		$pdf->SetFont('', 'B', 10);
		$pdf->Cell(40, 6, $k.':', 0, 0, 'L');
		$pdf->SetFont('', '', 10);
		$pdf->Cell(0, 6, $v, 0, 1, 'L');
	}
	if (!empty($protocol->note)) {
		$pdf->Ln(1);
		$pdf->SetFont('', 'I', 9);
		$pdf->MultiCell(0, 5, $outputlangs->transnoentities("Note").': '.$protocol->note, 0, 'L');
	}
	$pdf->Ln(4);

	// Geräteliste
	$pdf->SetFont('', 'B', 12);
	$pdf->Cell(0, 7, $outputlangs->transnoentities("NetDiagDevices").' ('.count($devices).')', 0, 1, 'L');
	$pdf->SetFillColor(0, 70, 130);
	$pdf->SetTextColor(255, 255, 255);
	$pdf->SetFont('', 'B', 8);
	$cols = array(35, 40, 50, 40, 15);
	$heads = array("IpAddress", "MacAddress", "Hostname", "Vendor", "DeviceType");
	foreach ($heads as $idx => $h) {
		$pdf->Cell($cols[$idx], 6, $outputlangs->transnoentities($h), 1, 0, 'L', true);
	}
	$pdf->Ln();
	$pdf->SetTextColor(0, 0, 0);
	$pdf->SetFont('', '', 8);
	foreach ($devices as $dev) {
		$pdf->Cell($cols[0], 5, dol_trunc($dev->ip, 22), 1, 0, 'L');
		$pdf->Cell($cols[1], 5, dol_trunc($dev->mac, 24), 1, 0, 'L');
		$pdf->Cell($cols[2], 5, dol_trunc($dev->hostname, 32), 1, 0, 'L');
		$pdf->Cell($cols[3], 5, dol_trunc($dev->vendor, 26), 1, 0, 'L');
		$pdf->Cell($cols[4], 5, dol_trunc($dev->devicetype, 10), 1, 1, 'L');
	}
	if (empty($devices)) {
		$pdf->Cell(array_sum($cols), 5, '-', 1, 1, 'C');
	}
	$pdf->Ln(4);

	// Messungen
	$pdf->SetFont('', 'B', 12);
	$pdf->Cell(0, 7, $outputlangs->transnoentities("NetDiagMeasurements").' ('.count($measurements).')', 0, 1, 'L');
	$statuslabels = array(0 => 'OK', 1 => $outputlangs->transnoentities("NetDiagMeasureWarn"), 2 => $outputlangs->transnoentities("NetDiagMeasureFail"));
	foreach ($measurements as $m) {
		$st = (int) $m->measure_status;
		if ($st == 2) {
			$pdf->SetFillColor(230, 130, 130);
		} elseif ($st == 1) {
			$pdf->SetFillColor(245, 215, 130);
		} else {
			$pdf->SetFillColor(170, 215, 170);
		}
		$pdf->SetFont('', 'B', 9);
		$title = ($m->category ? '['.$m->category.'] ' : '').$m->tool.($m->label ? ' — '.$m->label : '');
		$pdf->Cell(150, 6, dol_trunc($title, 80), 1, 0, 'L');
		$pdf->Cell(30, 6, $statuslabels[$st], 1, 1, 'C', true);
		$pdf->SetFont('', '', 8);
		$pdf->MultiCell(180, 5, netdiagPdfFlattenResult($m->result), 1, 'L');
	}
	if (empty($measurements)) {
		$pdf->SetFont('', '', 9);
		$pdf->Cell(180, 5, '-', 1, 1, 'C');
	}

	// Fuß
	$pdf->Ln(6);
	$pdf->SetFont('', 'I', 8);
	$pdf->SetTextColor(120, 120, 120);
	$pdf->Cell(0, 5, $outputlangs->transnoentities("NetDiagProtocol").' '.$protocol->ref.' — '.dol_print_date(dol_now(), 'dayhour', false, $outputlangs), 0, 1, 'L');

	// Speichern
	$pdf->Output($file, 'F');
	dolChmod($file);

	return 1;
}

/**
 * Mess-Ergebnis (JSON) als einzeiligen Text für PDF-Ausgabe.
 *
 * @param  string $json JSON-String
 * @return string       Lesbarer Text
 */
function netdiagPdfFlattenResult($json)
{
	if (empty($json)) {
		return '-';
	}
	$data = json_decode($json, true);
	if (!is_array($data)) {
		return (string) $json;
	}
	$parts = array();
	foreach ($data as $key => $val) {
		if (is_array($val)) {
			$flat = array();
			foreach ($val as $item) {
				$flat[] = is_array($item) ? json_encode($item, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES) : (string) $item;
			}
			$val = implode(', ', $flat);
		} elseif (is_bool($val)) {
			$val = $val ? 'ja' : 'nein';
		}
		$parts[] = ucfirst((string) $key).': '.$val;
	}
	return implode('  |  ', $parts);
}