<?php
define('NOTOKENRENEWAL', 1);
require '../../../main.inc.php';
require_once __DIR__.'/../lib/subtotaltitle.lib.php';

$facture_id = GETPOST('facture_id', 'int');
$section_id = GETPOST('section_id', 'int');

subtotaltitle_debug_log('🔍 assign_last_product: facture=' . $facture_id . ', section=' . $section_id);

if (!$facture_id || !$section_id) {
    echo json_encode(['success' => false, 'error' => 'Missing parameters']);
    exit;
}

$db->begin();

// Hole das neueste Produkt dieser Rechnung (höchster rang)
$sql = "SELECT rowid, rang FROM ".MAIN_DB_PREFIX."facturedet";
$sql .= " WHERE fk_facture = ".(int)$facture_id;
$sql .= " ORDER BY rang DESC LIMIT 1";
$resql = $db->query($sql);

if (!$resql || $db->num_rows($resql) == 0) {
    $db->rollback();
    echo json_encode(['success' => false, 'error' => 'Kein Produkt gefunden']);
    exit;
}

$product = $db->fetch_object($resql);
$product_id = $product->rowid;

subtotaltitle_debug_log('  → Neustes Produkt: #' . $product_id . ' (rang=' . $product->rang . ')');

// Prüfe ob schon in Manager-Tabelle
$sql = "SELECT rowid FROM ".MAIN_DB_PREFIX."facture_lines_manager";
$sql .= " WHERE fk_facturedet = ".(int)$product_id;
$resql = $db->query($sql);

if ($db->num_rows($resql) == 0) {
    // Produkt fehlt - hinzufügen
    $next_order = 1;
    $sql_max = "SELECT MAX(line_order) as max_order FROM ".MAIN_DB_PREFIX."facture_lines_manager";
    $sql_max .= " WHERE fk_facture = ".(int)$facture_id;
    $resql_max = $db->query($sql_max);
    if ($obj = $db->fetch_object($resql_max)) {
        $next_order = ($obj->max_order ? $obj->max_order + 1 : 1);
    }

    $sql_ins = "INSERT INTO ".MAIN_DB_PREFIX."facture_lines_manager";
    $sql_ins .= " (fk_facture, line_type, fk_facturedet, parent_section, line_order, date_creation)";
    $sql_ins .= " VALUES (".(int)$facture_id.", 'product', ".(int)$product_id.", ".(int)$section_id.", ".$next_order.", NOW())";
    $db->query($sql_ins);

    subtotaltitle_debug_log('  → Produkt zu Manager-Tabelle hinzugefügt (line_order=' . $next_order . ')');
} else {
    // Produkt existiert - UPDATE parent_section
    subtotaltitle_debug_log('🔵🔵🔵 assign_last_product: Produkt #'.$product_id.' → parent_section='.$section_id);

    $sql_upd = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager";
    $sql_upd .= " SET parent_section = ".(int)$section_id;
    $sql_upd .= " WHERE fk_facturedet = ".(int)$product_id;
    $db->query($sql_upd);

    subtotaltitle_debug_log('  → parent_section updated');
}

// Neu sortieren
require_once DOL_DOCUMENT_ROOT.'/custom/subtotaltitle/class/actions_subtotaltitle.class.php';
$hook = new ActionsSubtotalTitle($db);

$reflection = new ReflectionClass($hook);
$method = $reflection->getMethod('reorderLines');
$method->setAccessible(true);
$method->invoke($hook, $facture_id);

$method = $reflection->getMethod('syncRangFromManager');
$method->setAccessible(true);
$method->invoke($hook, $facture_id);

$db->commit();

subtotaltitle_debug_log('✅ Assignment erfolgreich');

echo json_encode(['success' => true, 'product_id' => $product_id]);