<?php
require_once __DIR__ . '/../../../session.php';
require_once '../../../assets/utils/db_auth.php';
require_once '../../../assets/utils/classes_ac/PostingWindowGuard.php';
require_once '../../../assets/utils/classes_ac/GlManager.php';
require_once '../../../assets/utils/classes_ac/posting/BasePosting.php';
require_once '../../../assets/utils/classes_ac/posting/InvoicePosting.php';
require_once '../../../assets/utils/classes_ac/posting/CreditNotePosting.php';
require_once '../../../assets/utils/classes_ac/posting/PurchaseInvoicePosting.php';
require_once '../../../assets/utils/classes_ac/posting/SupplierCreditNotePosting.php';
require_once '../../../assets/utils/classes_ac/posting/ReceiptPosting.php';
require_once '../../../assets/utils/classes_ac/posting/PaymentPosting.php';
require_once '../../../assets/utils/classes_ac/posting/PurchasePosting.php';

require_role($user_role, ['owner', 'admin']);
require_once '../../../assets/utils/notify_node.php';

$doc_type   = trim((string)($data['doc_type']   ?? ''));
$id         = (int)($data['id']         ?? 0);
$formula_id = (int)($data['formula_id'] ?? 0) ?: null;

$posting_map = [
    'invoice'               => InvoicePosting::class,
    'credit_note'           => CreditNotePosting::class,
    'purchase_invoice'      => PurchaseInvoicePosting::class,
    'supplier_credit_note'  => SupplierCreditNotePosting::class,
    'receipt'               => ReceiptPosting::class,
    'payment'               => PaymentPosting::class,
    'purchase_order'        => PurchasePosting::class,
];

if (!isset($posting_map[$doc_type]) || $id <= 0) {
    http_response_code(400);
    $answer['message'] = 'Invalid doc_type or id.';
    exit(json_encode($answer));
}

try {
    $posting_class = $posting_map[$doc_type];
    $posting       = new $posting_class($pdo2, $company_id);
    $built         = $posting->build($id, $formula_id);

    $guard = new PostingWindowGuard($pdo1, $company_id);
    $gl = new GlManager($pdo2, $company_id, $guard);
    $meta = ['journal_date' => $built['doc_date'] ?? null];

    $pdo2->beginTransaction();

    $existing = $gl->getBySource($doc_type, $id);
    if ($existing) {
        $gl->replace($doc_type, $id, $built['formula_id'], $built['period'], $built['lines'], $meta);
    } else {
        $gl->post($doc_type, $id, $built['formula_id'], $built['period'], $built['lines'], $meta);
    }

    $pdo2->commit();

    $answer['success'] = 1;
    $answer['message'] = $existing ? 'GL entry replaced.' : 'GL entry posted.';

    $has_revenue = false;
    $has_expense = false;
    foreach ($built['lines'] as $line) {
        $code = (int)($line['account_code'] ?? 0);
        if ($code >= 4000 && $code < 5000) $has_revenue = true;
        if ($code >= 5000)                 $has_expense  = true;
    }

    notify_node('gl_posted', [
        'doc_type'    => $doc_type,
        'id'          => $id,
        'action'      => $existing ? 'replaced' : 'posted',
        'has_revenue' => $has_revenue,
        'has_expense' => $has_expense,
    ], $company_id);

} catch (PDOException $e) {
    if ($pdo2->inTransaction()) $pdo2->rollBack();
    error_log('[' . basename(__FILE__) . '] ' . $e->getMessage());
    $answer['message'] = 'Database error, please try again.';
    http_response_code(500);
} catch (Exception $e) {
    if ($pdo2->inTransaction()) $pdo2->rollBack();
    $answer['message'] = $e->getMessage();
    http_response_code(400);
}

exit(json_encode($answer));