<?php

namespace App\Http\Controllers\Api\Admin\Invoice;

use App\Http\Controllers\Controller;
use App\Jobs\Mail\SendInformationVirtualMachine;
use App\Jobs\VirtualMachine\Provision\SendVmCredentialsEmailJob;
use App\Models\Invoice;
use App\Models\ModuleVmware;
use App\Models\Setting;
use App\Services\InvoicePdfService;
use Barryvdh\DomPDF\Facade\Pdf;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;

class InvoiceTestController extends Controller
{
    public function sendInvoiceEmail(Request $request, string $invoiceNumber): JsonResponse
    {
        $invoice = Invoice::with(['invoiceItems.product', 'customer', 'order.orderItems'])
            ->where('invoice_number', $invoiceNumber)
            ->first();

        if (!$invoice) {
            return response()->json([
                'success' => false,
                'message' => 'Không tìm thấy hóa đơn.',
            ], 404);
        }

        $customer = $invoice->customer;
        if (!$customer?->email) {
            return response()->json([
                'success' => false,
                'message' => 'Khách hàng không có email.',
            ], 400);
        }

        try {
            $pdfService        = app(InvoicePdfService::class);
            $invoicePdf        = $pdfService->generate($invoice);
            $invoicePdfFileName = $pdfService->generateFileName($invoice);
        } catch (\Throwable $e) {
            return response()->json([
                'success' => false,
                'message' => 'Lỗi tạo PDF: ' . $e->getMessage(),
            ], 500);
        }

        $vm = ModuleVmware::with(['customer', 'os.osGroup', 'order.orderItems'])
            ->where('order_id', $invoice->order_id)
            ->first();

        if ($vm) {
            SendVmCredentialsEmailJob::dispatch($vm->id);

            return response()->json([
                'success' => true,
                'message' => 'Đã dispatch SendVmCredentialsEmailJob (có PDF hóa đơn đính kèm).',
                'data'    => [
                    'invoice_id'     => $invoice->id,
                    'invoice_number' => $invoice->invoice_number,
                    'customer_email' => $customer->email,
                    'vm_id'          => $vm->id,
                    'pdf_file_name'  => $invoicePdfFileName,
                ],
            ]);
        }

        $setting      = Setting::where('key', 'setting')->first();
        $settingValue = $setting ? json_decode((string) $setting->value) : null;

        $emailData = [
            'company_name'      => $settingValue->company ?? 'Thế Giới Số',
            'company_logo'      => $settingValue->logo ?? '',
            'client_name'       => trim($customer->firstname . ' ' . $customer->lastname),
            'product_name'      => $invoice->invoiceItems->first()?->product?->name ?? 'Dịch vụ',
            'product_billing'   => 'N/A',
            'product_price'     => number_format((float) $invoice->total, 0, ',', '.'),
            'service_host'      => 'N/A',
            'service_username'  => 'N/A',
            'service_port'      => 'N/A',
            'service_password'  => 'N/A',
            'os_name'           => 'N/A',
            'service_due_exp'   => $invoice->due_date ? $invoice->due_date->format('d/m/Y') : 'N/A',
        ];

        SendInformationVirtualMachine::dispatch($emailData, $customer, $invoicePdf, $invoicePdfFileName);

        return response()->json([
            'success' => true,
            'message' => 'Đã gửi email hóa đơn (không có VM liên kết, sử dụng thông tin hóa đơn).',
            'data'    => [
                'invoice_id'     => $invoice->id,
                'invoice_number' => $invoice->invoice_number,
                'customer_email' => $customer->email,
                'pdf_file_name'  => $invoicePdfFileName,
            ],
        ]);
    }

    public function previewInvoicePdf(Request $request, string $invoiceNumber)
    {
        $invoice = Invoice::with(['invoiceItems.product', 'customer', 'order.orderItems'])
            ->where('invoice_number', $invoiceNumber)
            ->first();

        if (!$invoice) {
            return response()->json([
                'success' => false,
                'message' => 'Không tìm thấy hóa đơn.',
            ], 404);
        }

        $setting      = Setting::where('key', 'setting')->first();
        $settingValue = $setting ? json_decode((string) $setting->value) : null;

        return Pdf::loadView('pdf.invoice', [
            'invoice'       => $invoice,
            'invoiceItems'  => $invoice->invoiceItems,
            'customer'      => $invoice->customer,
            'order'         => $invoice->order,
            'companyName'   => $settingValue->company ?? 'Thế Giới Số',
            'companyAddress' => $settingValue->address ?? '',
            'companyPhone'  => $settingValue->phone ?? '',
            'companyEmail'  => $settingValue->email ?? '',
        ])->stream($invoice->invoice_number . '.pdf');
    }
}