<?php

namespace App\Services;

use App\Mail\AutoRenewFailedMail;
use App\Models\Invoice;
use App\Models\Mail as MailLog;
use App\Models\Notification;
use App\Models\Service;
use App\Services\Email\EmailTemplateService;
use App\Support\AutoEmailGate;
use Illuminate\Database\Eloquent\ModelNotFoundException;
use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Facades\Mail;

class AutoRenewFailureNotifier
{
    public function __construct(private readonly EmailTemplateService $templates) {}

    public function notifyInsufficientBalance(Service $service, Invoice $invoice): bool
    {
        $customer = $service->customer;
        if (! $customer) {
            return false;
        }

        $dedupeKey = sprintf('auto-renew-failed:%d:%s', $invoice->id, now()->toDateString());
        if (! Cache::add($dedupeKey, true, now()->endOfDay())) {
            return false;
        }

        $invoice->loadMissing('order');
        $name = $service->server_name ?: $service->product?->name ?: 'Dịch vụ';

        Notification::notifyCustomer($customer, [
            'type' => AutoRenewFailedMail::SCENARIO,
            'title' => 'Tự động gia hạn chưa thành công',
            'body' => sprintf(
                'Số dư không đủ để tự động gia hạn %s. Cần %s VNĐ, hiện có %s VNĐ. Nạp thêm tiền để hệ thống tự trừ ở lần kiểm tra kế tiếp.',
                $name,
                number_format(InvoicePaymentService::outstanding($invoice), 0, ',', '.'),
                number_format((int) $customer->total, 0, ',', '.'),
            ),
            'link' => '/nap-tien',
            'data' => ['invoice_number' => $invoice->invoice_number, 'service_id' => $service->id],
        ]);

        if (filled($customer->email) && AutoEmailGate::allows(AutoRenewFailedMail::SCENARIO)) {
            $this->sendMail($service, $invoice);
        }

        return true;
    }

    private function sendMail(Service $service, Invoice $invoice): void
    {
        try {
            $template = $this->templates->loadTemplate(AutoRenewFailedMail::SCENARIO);
        } catch (ModelNotFoundException) {
            return;
        }

        $service->loadMissing('product');
        $mail = new AutoRenewFailedMail($service->customer, $service, $invoice);

        MailLog::create([
            'template_id' => $template->id,
            'subject' => $mail->envelope()->subject,
            'from_address' => $template->mailConfig()['from_email'] ?? config('mail.from.address'),
            'to' => $service->customer->email,
            'customer_id' => $service->customer_id,
            'message' => $mail->render(),
        ]);

        Mail::to($service->customer->email)->queue($mail);
    }
}