<?php
/**
 * approve_stock.php — Approve a draft td_stock row (status 0 → 1).
 *
 * Flips status to 1 and calls adjustBalance() so warehouse_balance
 * reflects the transaction. This is the ONLY place adjustBalance() is
 * called — both auto-approve (on save) and manual approve go through here.
 *
 * Expected $data keys:
 *   id           int     td_stock row id
 *   warehouse    int     warehouse_id (to resolve the dynamic table)
 *   type         string  'in' | 'out' | 'transfer'
 */
session_start();
require '../../../assets/utils/db_auth.php';
require '../../../assets/utils/classes/StockManager.php';
require '../../../assets/utils/classes/WarehouseManager.php';

require_role($user_role, ['owner', 'admin']);

$id           = (int)($data['id']        ?? 0);
$warehouse_id = (int)($data['warehouse'] ?? 0);
$type         = $data['type'] ?? '';

if (!$id || !$warehouse_id || !in_array($type, ['in', 'out', 'transfer'])) {
    http_response_code(400);
    exit(json_encode(['success' => 0, 'message' => 'Invalid parameters.']));
}

$stock  = new StockManager($pdo2, $company_id);
$whMgmt = new WarehouseManager($pdo2, $company_id);

try {
    $pdo2->beginTransaction();

    $result = $stock->approveStock($id, $warehouse_id, $type, $whMgmt);

    $pdo2->commit();

    $answer['success'] = 1;
    $answer['message'] = 'Stock approved.';
    exit(json_encode($answer));

} catch (Exception $e) {
    $pdo2->rollBack();
    http_response_code(400);
    exit(json_encode(['success' => 0, 'message' => $e->getMessage()]));
}