<?php
    session_start();
    require_once '../../../assets/utils/db_auth.php';
    require_role($user_role, ['owner', 'admin', 'staff']);
    require_once '../../../assets/utils/classes/UsageGuard.php';
    require_once '../../../assets/utils/classes/ReceiptManager.php';

    try {
        $mgr = new ReceiptManager($pdo2, $company_id);
        $action = $data['action'] ?? ($_POST['action'] ?? '');

        if ($action === 'open_documents') {
            $contact_id = (int)($data['contact_id'] ?? 0);
            $answer['output'] = $mgr->getOpenDocuments($contact_id);
            $answer['success'] = 1;
            exit(json_encode($answer));
        }

        if ($action === 'save_formula') {
            $id = (int)($data['id'] ?? 0);
            $formula_id = isset($data['formula_id']) && (int)$data['formula_id'] > 0 ? (int)$data['formula_id'] : null;
            $mgr->saveFormula($id, $formula_id);
            $answer['success'] = 1;
            exit(json_encode($answer));
        }

        if ($action === 'retrieve') {
            $receipt_id = (int)($data['id'] ?? $data['receipt_id'] ?? 0);
            $answer['output'] = $mgr->getReceiptById($receipt_id);
            $answer['success'] = 1;
            exit(json_encode($answer));
        }

        if ($action === 'void') {
            $receipt_id = (int)($data['id'] ?? $data['receipt_id'] ?? 0);
            dbTransaction($pdo2, function($pdo) use ($receipt_id, $company_id, $logging) {
                $mgr = new ReceiptManager($pdo, $company_id);
                $mgr->voidReceipt($receipt_id, $logging);
            });
            $answer['success'] = 1;
            $answer['message'] = 'Receipt voided.';
            exit(json_encode($answer));
        }

        if ($action === 'create') {
            $new_id = null;
            dbTransaction($pdo2, function($pdo) use ($data, $company_id, $logging, &$new_id) {
                $mgr = new ReceiptManager($pdo, $company_id);
                $new_id = $mgr->createReceipt($data, $logging);
            });
            $answer['success'] = 1;
            $answer['new_id'] = $new_id;
            $answer['message'] = 'Receipt posted.';
            (new UsageGuard($pdo1, $company_id, $packages))->increment();
            require_once '../../../assets/utils/notify_node.php';
            notify_node('receipt_posted', ['id' => $new_id], $company_id);

            // Auto-post GL
            try {
                require_once '../../../assets/utils/classes_ac/posting/BasePosting.php';
                require_once '../../../assets/utils/classes_ac/posting/ReceiptPosting.php';
                $sth = $pdo2->prepare("SELECT formula_id FROM td_receipt WHERE company_id = :cid AND id = :id LIMIT 1");
                $sth->execute([':cid' => $company_id, ':id' => $new_id]);
                $row = $sth->fetch(PDO::FETCH_ASSOC);
                $posting = new ReceiptPosting($pdo2, $company_id);
                $built   = $posting->build($new_id, $row['formula_id'] ?: null);
                $guard   = new PostingWindowGuard($pdo1, $company_id);
                $gl      = new GlManager($pdo2, $company_id, $guard);
                $pdo2->beginTransaction();
                $gl->post('receipt', $new_id, $built['formula_id'], $built['period'], $built['lines'], ['journal_date' => $built['doc_date']]);
                $pdo2->commit();
                notify_node('gl_posted', gl_posted_payload('receipt', (int)$new_id, 'posted', $built['lines'] ?? []), $company_id);
                $answer['gl_posted'] = true;
            } catch (Exception $e) {
                if ($pdo2->inTransaction()) $pdo2->rollBack();
                $answer['gl_posted'] = false;
                $answer['gl_message'] = $e->getMessage();
                error_log("auto_gl [receipt#{$new_id}]: " . $e->getMessage());
            }

            exit(json_encode($answer));
        }

        $answer['output'] = $mgr->getReceiptList();
        $answer['success'] = 1;

    } catch (PDOException $e) {
        $answer['message'] = 'Database error, please try again.';
        http_response_code(500);

    } catch (Exception $e) {
        $answer['message'] = $e->getMessage();
        http_response_code(400);
    }

    exit(json_encode($answer));
?>