<?php
/* Copyright (C) 2026 Eduard Wisch <data@data-it-solution.de>
 * GPL v3+
 */

/**
 * Hilfs-Funktionen für das Bericht-Modul.
 */

require_once DOL_DOCUMENT_ROOT.'/core/lib/files.lib.php';

/**
 * Erzeugt die Tab-Header-Leiste für die Editor-Seite (Übersicht / Editor).
 *
 * @param Bericht $object
 * @return array
 */
function bericht_prepare_head($object)
{
    global $langs, $conf;
    $langs->load("bericht@bericht");

    $h = 0;
    $head = array();

    $head[$h][0] = dol_buildpath('/bericht/bericht_card.php', 1).'?id='.$object->id;
    $head[$h][1] = $langs->trans("BerichtEditor");
    $head[$h][2] = 'editor';
    $h++;

    return $head;
}

/**
 * Lädt das Parent-Objekt anhand des element_type.
 *
 * @return CommonObject|null
 */
function bericht_fetch_parent(DoliDB $db, $element_type, $id)
{
    if ($element_type === 'invoice') {
        require_once DOL_DOCUMENT_ROOT.'/compta/facture/class/facture.class.php';
        $o = new Facture($db);
    } elseif ($element_type === 'order') {
        require_once DOL_DOCUMENT_ROOT.'/commande/class/commande.class.php';
        $o = new Commande($db);
    } elseif ($element_type === 'propal') {
        require_once DOL_DOCUMENT_ROOT.'/comm/propal/class/propal.class.php';
        $o = new Propal($db);
    } else {
        return null;
    }
    if ($o->fetch($id) <= 0) return null;
    $o->fetch_thirdparty();
    if (method_exists($o, 'fetch_optionals')) {
        $o->fetch_optionals();
    }
    return $o;
}

/**
 * Mappt einen element_type-Code auf den Dolibarr-internen Element-Namen
 * für das Verzeichnis der Anhänge (multidir_output).
 */
function bericht_element_to_dir_key($element_type)
{
    return array(
        'invoice' => 'facture',
        'order'   => 'commande',
        'propal'  => 'propal',
    )[$element_type] ?? null;
}

/**
 * Sammelt alle Anhänge eines Parent-Objekts UND der direkt verknüpften Objekte
 * (z. B. der Auftrag/Angebot, die mit dieser Rechnung verknüpft sind).
 *
 * @return array  Liste mit ['source','source_id','source_ref','filename','fullpath','relpath','size','mime','date']
 */
function bericht_collect_attachments(DoliDB $db, CommonObject $parent, $element_type)
{
    global $conf;

    $result = array();

    // 1) Eigene Anhänge
    $dir_key = bericht_element_to_dir_key($element_type);
    if ($dir_key && !empty($conf->{$dir_key}->multidir_output[$parent->entity])) {
        $upload_dir = $conf->{$dir_key}->multidir_output[$parent->entity].'/'.dol_sanitizeFileName($parent->ref);
        if (is_dir($upload_dir)) {
            $files = dol_dir_list($upload_dir, 'files', 1, '', '(\.meta|_preview.*\.png|thumbs)$');
            foreach ($files as $f) {
                $result[] = array(
                    'source'      => $element_type,
                    'source_id'   => $parent->id,
                    'source_ref'  => $parent->ref,
                    'filename'    => $f['name'],
                    'fullpath'    => $f['fullname'],
                    'relpath'     => str_replace(DOL_DATA_ROOT.'/', '', $f['fullname']),
                    'size'        => $f['size'],
                    'mime'        => dol_mimetype($f['name']),
                    'date'        => $f['date'],
                );
            }
        }
    }

    // 2) Verknüpfte Objekte: order, propal — auch deren Anhänge anbieten
    $parent->fetchObjectLinked();
    $linked_types = array('commande' => 'order', 'propal' => 'propal', 'facture' => 'invoice');
    foreach ($linked_types as $linked_dolibarr_type => $linked_module_type) {
        if (empty($parent->linkedObjects[$linked_dolibarr_type])) continue;
        foreach ($parent->linkedObjects[$linked_dolibarr_type] as $lobj) {
            if (empty($conf->{$linked_dolibarr_type}->multidir_output[$lobj->entity])) continue;
            $linked_dir = $conf->{$linked_dolibarr_type}->multidir_output[$lobj->entity].'/'.dol_sanitizeFileName($lobj->ref);
            if (!is_dir($linked_dir)) continue;
            $files = dol_dir_list($linked_dir, 'files', 1, '', '(\.meta|_preview.*\.png|thumbs)$');
            foreach ($files as $f) {
                $result[] = array(
                    'source'      => $linked_module_type,
                    'source_id'   => $lobj->id,
                    'source_ref'  => $lobj->ref,
                    'filename'    => $f['name'],
                    'fullpath'    => $f['fullname'],
                    'relpath'     => str_replace(DOL_DATA_ROOT.'/', '', $f['fullname']),
                    'size'        => $f['size'],
                    'mime'        => dol_mimetype($f['name']),
                    'date'        => $f['date'],
                );
            }
        }
    }

    return $result;
}

/**
 * Liest die Auftragsnummer aus dem Parent-Objekt.
 * Reihenfolge: extrafield 'auftragsnummer' → ref_client → ref
 */
function bericht_get_auftragsnummer(CommonObject $parent)
{
    if (!empty($parent->array_options['options_auftragsnummer'])) {
        return $parent->array_options['options_auftragsnummer'];
    }
    if (!empty($parent->ref_client)) {
        return $parent->ref_client;
    }
    return $parent->ref;
}

/**
 * Listet alle ODT-Templates im Templates-Verzeichnis auf.
 *
 * @return string[]  Dateinamen
 */
function bericht_list_templates()
{
    $dir = DOL_DATA_ROOT.'/bericht/templates';
    if (!is_dir($dir)) return array();
    $files = scandir($dir);
    return array_values(array_filter($files, function ($f) {
        return preg_match('/\.odt$/i', $f);
    }));
}

/**
 * Sicherer absolute-Pfad-Resolver für Dateien unterhalb DOL_DATA_ROOT.
 * Verhindert Path-Traversal.
 */
function bericht_resolve_data_path($relpath)
{
    $base = realpath(DOL_DATA_ROOT);
    $full = realpath($base.'/'.$relpath);
    if ($full === false) return null;
    if (strpos($full, $base) !== 0) return null;
    return $full;
}