<?php
declare(strict_types=1);
namespace App\Modules\Invoices\Actions;

use App\Core\Database;
use Exception;

final class GetInvoiceDetailAction {
    public function execute(string $invoiceId, string $tenantId, $user): array {
        $db = Database::getInstance();
        
        $stmt = $db->prepare("SELECT * FROM invoices WHERE id = ? AND tenant_id = ? AND deleted_at IS NULL LIMIT 1");
        $stmt->execute([$invoiceId, $tenantId]);
        $invoice = $stmt->fetch();

        if (!$invoice) {
            throw new Exception('الفاتورة غير موجودة أو تم حذفها', 404);
        }

        $role = $user->role ?? 'viewer';
        if ($role !== 'super_admin' && $invoice['company_id'] !== ($user->assigned_company_id ?? null)) {
            throw new Exception('غير مصرح لك بالوصول لهذه الفاتورة', 403);
        }

        $stmt = $db->prepare("SELECT * FROM invoice_lines WHERE invoice_id = ? ORDER BY line_number ASC");
        $stmt->execute([$invoiceId]);
        $invoice['lines'] = $stmt->fetchAll() ?: [];

        return $invoice;
    }
}