<?php
/* Batch-Modus: mehrere Berichte zu einem Sammel-PDF zusammenführen.
 * Nur finale Berichte mit existierendem final_pdf_path werden berücksichtigt.
 *
 * GET: filter per Datum-Von/Bis, Element-Typ, Kundensuche, Status
 * POST: action=generate + ids[] → liefert ein zusammengesetztes PDF aus den ausgewählten
 */

$res = 0;
if (!$res && !empty($_SERVER["CONTEXT_DOCUMENT_ROOT"])) $res = @include $_SERVER["CONTEXT_DOCUMENT_ROOT"]."/main.inc.php";
$tmp = empty($_SERVER['SCRIPT_FILENAME']) ? '' : $_SERVER['SCRIPT_FILENAME']; $tmp2 = realpath(__FILE__); $i = strlen($tmp) - 1; $j = strlen($tmp2) - 1;
while ($i > 0 && $j > 0 && isset($tmp[$i]) && isset($tmp2[$j]) && $tmp[$i] == $tmp2[$j]) { $i--; $j--; }
if (!$res && $i > 0 && file_exists(substr($tmp, 0, ($i + 1))."/main.inc.php")) $res = @include substr($tmp, 0, ($i + 1))."/main.inc.php";
if (!$res && $i > 0 && file_exists(dirname(substr($tmp, 0, ($i + 1)))."/main.inc.php")) $res = @include dirname(substr($tmp, 0, ($i + 1)))."/main.inc.php";
if (!$res && file_exists("../main.inc.php")) $res = @include "../main.inc.php";
if (!$res && file_exists("../../main.inc.php")) $res = @include "../../main.inc.php";
if (!$res) die("Include of main fails");

require_once __DIR__.'/class/bericht.class.php';
require_once __DIR__.'/lib/bericht.lib.php';

if (!$user->hasRight('bericht', 'read')) accessforbidden();

$langs->loadLangs(array("bericht@bericht", "main"));

$action = GETPOST('action', 'alpha');
$datefrom = GETPOST('datefrom', 'alpha');
$dateto = GETPOST('dateto', 'alpha');
$q = GETPOST('q', 'alpha');

/* ---------- Batch-PDF generieren ---------- */
if ($action === 'generate') {
    $ids = GETPOST('ids', 'array');
    if (empty($ids)) {
        setEventMessages('Keine Berichte ausgewählt', null, 'errors');
        header("Location: ".$_SERVER['PHP_SELF']); exit;
    }

    // TCPDF + FPDI laden
    $tcpdf_loaded = false;
    foreach (array(
        DOL_DOCUMENT_ROOT.'/includes/tecnickcom/tcpdf/tcpdf.php',
        DOL_DOCUMENT_ROOT.'/includes/tcpdf/tcpdf.php',
    ) as $p) { if (file_exists($p)) { require_once $p; $tcpdf_loaded = true; break; } }
    if (!$tcpdf_loaded) { http_response_code(500); exit('TCPDF fehlt'); }

    $fpdi_loaded = false;
    foreach (array(
        DOL_DOCUMENT_ROOT.'/includes/setasign/vendor/setasign/fpdi/src/Tcpdf/Fpdi.php',
        DOL_DOCUMENT_ROOT.'/includes/fpdi/src/Tcpdf/Fpdi.php',
    ) as $p) { if (file_exists($p)) { require_once $p; $fpdi_loaded = true; break; } }
    if (!$fpdi_loaded) { http_response_code(500); exit('FPDI wird für Batch-Modus benötigt'); }

    $pdf = new \setasign\Fpdi\Tcpdf\Fpdi('P', 'mm', 'A4', true, 'UTF-8', false);
    $pdf->SetCreator('Dolibarr Bericht-Modul Batch');
    $pdf->SetAuthor($user->getFullName($langs));
    $pdf->SetTitle('Bericht-Sammlung '.dol_print_date(dol_now(), '%Y-%m-%d'));
    $pdf->setPrintHeader(false);
    $pdf->setPrintFooter(false);

    // Inhaltsverzeichnis-Seite
    $pdf->AddPage('P', 'A4');
    $pdf->SetFont('helvetica', 'B', 18);
    $pdf->Cell(0, 12, 'Bericht-Sammlung', 0, 1, 'C');
    $pdf->SetFont('helvetica', '', 11);
    $pdf->Cell(0, 8, 'Erstellt: '.dol_print_date(dol_now(), 'dayhour'), 0, 1, 'C');
    $pdf->Ln(8);
    $pdf->SetFont('helvetica', 'B', 13);
    $pdf->Cell(0, 8, 'Enthaltene Berichte ('.count($ids).')', 0, 1, 'L');
    $pdf->SetFont('helvetica', '', 10);

    $berichte = array();
    foreach ($ids as $id) {
        $b = new Bericht($db);
        if ($b->fetch((int) $id) > 0 && $b->status == Bericht::STATUS_FINAL && !empty($b->final_pdf_path)) {
            $pp = bericht_resolve_data_path($b->final_pdf_path);
            if ($pp && file_exists($pp)) {
                $berichte[] = array('bericht' => $b, 'pdf' => $pp);
                $pdf->Cell(0, 6, '• '.$b->ref.' – '.($b->titel ?: '').' ('.$b->auftragsnummer.')', 0, 1, 'L');
            }
        }
    }

    if (empty($berichte)) {
        exit('Keine gültigen (finalisierten) Berichte in der Auswahl');
    }

    // Jede Bericht-PDF als volle Seiten einbauen
    foreach ($berichte as $entry) {
        try {
            $page_count = $pdf->setSourceFile($entry['pdf']);
            for ($n = 1; $n <= $page_count; $n++) {
                $tpl = $pdf->importPage($n);
                $size = $pdf->getTemplateSize($tpl);
                $pdf->AddPage($size['orientation'] ?? 'P', array($size['width'], $size['height']));
                $pdf->useTemplate($tpl);
            }
        } catch (Throwable $e) { continue; }
    }

    $filename = 'Bericht-Sammlung_'.dol_print_date(dol_now(), '%Y%m%d_%H%M%S').'.pdf';
    header('Content-Type: application/pdf');
    header('Content-Disposition: attachment; filename="'.$filename.'"');
    $pdf->Output($filename, 'D');
    exit;
}

/* ---------- Listen-Ansicht ---------- */
llxHeader('', 'Bericht-Batch-Modus');
print load_fiche_titre('📦 Bericht-Batch — Mehrere Berichte zu einem PDF', '', 'bill');

// Filter
print '<form method="get" class="bericht-batch-filter" style="margin-bottom:16px;padding:12px;background:var(--colorbacktitle1,#f5f5f5);border-radius:6px;">';
print '<label>Von: <input type="date" name="datefrom" value="'.dol_escape_htmltag($datefrom).'"></label> &nbsp; ';
print '<label>Bis: <input type="date" name="dateto" value="'.dol_escape_htmltag($dateto).'"></label> &nbsp; ';
print '<label>Suche: <input type="text" name="q" value="'.dol_escape_htmltag($q).'" placeholder="Ref, Titel, Auftragsnr"></label> &nbsp; ';
print '<button type="submit" class="butAction">🔍 Filtern</button>';
print '</form>';

// Query: nur finale Berichte mit PDF, gefiltert
$where = "status = 1 AND final_pdf_path IS NOT NULL AND COALESCE(is_template,0) = 0 AND entity IN (".getEntity('bericht').")";
if ($datefrom) {
    $where .= " AND datec >= '".$db->escape($datefrom." 00:00:00")."'";
}
if ($dateto) {
    $where .= " AND datec <= '".$db->escape($dateto." 23:59:59")."'";
}
if ($q) {
    $qe = $db->escape($q);
    $where .= " AND (ref LIKE '%$qe%' OR titel LIKE '%$qe%' OR auftragsnummer LIKE '%$qe%')";
}

$sql = "SELECT rowid, ref, titel, auftragsnummer, element_type, fk_element, datec FROM ".$db->prefix()."bericht WHERE ".$where." ORDER BY datec DESC LIMIT 500";
$resq = $db->query($sql);

print '<form method="post" action="'.$_SERVER['PHP_SELF'].'">';
print '<input type="hidden" name="token" value="'.newToken().'">';
print '<input type="hidden" name="action" value="generate">';
print '<table class="noborder centpercent">';
print '<tr class="liste_titre">';
print '<th><input type="checkbox" onclick="document.querySelectorAll(\'.bt-check\').forEach(c => c.checked = this.checked)"></th>';
print '<th>Ref</th>';
print '<th>Titel</th>';
print '<th>Auftragsnummer</th>';
print '<th>Datum</th>';
print '</tr>';

$count = 0;
if ($resq) {
    while ($o = $db->fetch_object($resq)) {
        print '<tr class="oddeven">';
        print '<td><input type="checkbox" class="bt-check" name="ids[]" value="'.$o->rowid.'"></td>';
        print '<td>'.dol_escape_htmltag($o->ref).'</td>';
        print '<td>'.dol_escape_htmltag($o->titel).'</td>';
        print '<td>'.dol_escape_htmltag($o->auftragsnummer).'</td>';
        print '<td>'.dol_print_date($db->jdate($o->datec), 'dayhour').'</td>';
        print '</tr>';
        $count++;
    }
}
print '</table>';

if ($count === 0) {
    print '<p class="opacitymedium">Keine finalisierten Berichte gefunden.</p>';
} else {
    print '<div style="margin-top:16px;text-align:right;">';
    print '<button type="submit" class="butActionConfirm">📦 Ausgewählte als Sammel-PDF herunterladen</button>';
    print '</div>';
}
print '</form>';

llxFooter();
$db->close();