<?php
    session_start();
    require '../../../assets/utils/db_auth.php';
    require '../../../assets/utils/classes/WarehouseManager.php';

    $wh       = new WarehouseManager($pdo2, $company_id);
    $type     = $data['type']        ?? '';
    $sku      = $data['product_sku'] ?? '';
    $lot      = $data['lot_number']  ?? '';
    $id       = (int)($data['id']    ?? 0);

    // When type=from and a lot is selected, filter warehouses to only those
    // holding that specific lot in an approved, rack-occupied stock-in row.
    if ($type === 'from' && $sku && $lot) {
        $answer['output'] = $wh->getWarehousesByLot($sku, $lot);
    } else {
        $answer['output'] = $wh->getWarehouseList($type, $sku, $id);
    }

    $answer['success'] = 1;
    exit(json_encode($answer));
?>