feat(notification): implement email notifications for user registration and purchase events

app/Domains/Notification/Events/TicketsAvailable.php

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+<?php
+
+namespace App\Domains\Notification\Events;
+
+use App\Domains\Purchase\Models\Purchase;
+use Illuminate\Foundation\Events\Dispatchable;
+use Illuminate\Queue\SerializesModels;
+
+class TicketsAvailable
+{
+    use Dispatchable, SerializesModels;
+
+    /**
+     * @param  array<int, int>  $ticketIds
+     */
+    public function __construct(
+        public readonly Purchase $purchase,
+        public readonly array $ticketIds,
+    ) {}
+}

app/Domains/Notification/Events/UserRegistered.php

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+<?php
+
+namespace App\Domains\Notification\Events;
+
+use App\Domains\Auth\Models\User;
+use Illuminate\Foundation\Events\Dispatchable;
+use Illuminate\Queue\SerializesModels;
+
+class UserRegistered
+{
+    use Dispatchable, SerializesModels;
+
+    public function __construct(
+        public readonly User $user,
+        public readonly string $tenantCode,
+    ) {}
+}

app/Domains/Notification/Listeners/SendPurchasePaidEmail.php

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+<?php
+
+namespace App\Domains\Notification\Listeners;
+
+use App\Domains\Notification\Services\NotificationMailService;
+use App\Domains\Purchase\Events\PurchasePaid;
+use Illuminate\Contracts\Queue\ShouldQueueAfterCommit;
+use Illuminate\Queue\InteractsWithQueue;
+
+class SendPurchasePaidEmail implements ShouldQueueAfterCommit
+{
+    use InteractsWithQueue;
+
+    public string $queue = 'emails';
+
+    public int $tries = 3;
+
+    /** @var array<int, int> */
+    public array $backoff = [30, 120, 300];
+
+    public function handle(PurchasePaid $event): void
+    {
+        app(NotificationMailService::class)->sendPurchasePaid($event->purchase->getKey());
+    }
+}

app/Domains/Notification/Listeners/SendTicketsAvailableEmail.php

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+<?php
+
+namespace App\Domains\Notification\Listeners;
+
+use App\Domains\Notification\Events\TicketsAvailable;
+use App\Domains\Notification\Services\NotificationMailService;
+use Illuminate\Contracts\Queue\ShouldQueueAfterCommit;
+use Illuminate\Queue\InteractsWithQueue;
+
+class SendTicketsAvailableEmail implements ShouldQueueAfterCommit
+{
+    use InteractsWithQueue;
+
+    public string $queue = 'emails';
+
+    public int $tries = 3;
+
+    /** @var array<int, int> */
+    public array $backoff = [30, 120, 300];
+
+    public function handle(TicketsAvailable $event): void
+    {
+        app(NotificationMailService::class)->sendTicketsAvailable($event->purchase->getKey(), $event->ticketIds);
+    }
+}

app/Domains/Notification/Listeners/SendWelcomeEmail.php

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+<?php
+
+namespace App\Domains\Notification\Listeners;
+
+use App\Domains\Notification\Events\UserRegistered;
+use App\Domains\Notification\Services\NotificationMailService;
+use Illuminate\Contracts\Queue\ShouldQueueAfterCommit;
+use Illuminate\Queue\InteractsWithQueue;
+
+class SendWelcomeEmail implements ShouldQueueAfterCommit
+{
+    use InteractsWithQueue;
+
+    public string $queue = 'emails';
+
+    public int $tries = 3;
+
+    /** @var array<int, int> */
+    public array $backoff = [30, 120, 300];
+
+    public function handle(UserRegistered $event): void
+    {
+        app(NotificationMailService::class)->sendWelcome($event->user->getKey(), $event->tenantCode);
+    }
+}

app/Domains/Notification/Services/NotificationMailService.php

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+<?php
+
+namespace App\Domains\Notification\Services;
+
+use App\Domains\Auth\Models\User;
+use App\Domains\Integration\Services\MailService;
+use App\Domains\Purchase\Models\Purchase;
+use App\Domains\Tenant\Models\Tenant;
+use App\Domains\Ticket\Models\Ticket;
+use Illuminate\Support\Collection;
+
+class NotificationMailService
+{
+    public function __construct(
+        private readonly MailService $mailService,
+    ) {}
+
+    public function sendWelcome(int $userId, string $tenantCode): void
+    {
+        $tenant = Tenant::query()->where('codigo', $tenantCode)->firstOrFail();
+        $user = User::query()->findOrFail($userId);
+
+        $this->mailService
+            ->forTenant($tenantCode)
+            ->send(
+                $user->email,
+                "Bienvenido a {$tenant->nombre}",
+                view('mail.notifications.welcome', compact('tenant', 'user'))->render(),
+            );
+    }
+
+    public function sendPurchasePaid(int $purchaseId): void
+    {
+        $purchase = Purchase::query()
+            ->with(['tenant', 'user', 'items'])
+            ->findOrFail($purchaseId);
+
+        $this->mailService
+            ->forTenant($purchase->tenant_codigo)
+            ->send(
+                $this->recipientFor($purchase),
+                "Pago confirmado - Compra #{$purchase->getKey()}",
+                view('mail.notifications.purchase-paid', compact('purchase'))->render(),
+            );
+    }
+
+    /** @param array<int, int> $ticketIds */
+    public function sendTicketsAvailable(int $purchaseId, array $ticketIds): void
+    {
+        $purchase = Purchase::query()->with(['tenant', 'user'])->findOrFail($purchaseId);
+        /** @var Collection<int, Ticket> $tickets */
+        $tickets = Ticket::query()
+            ->where('tenant_code', $purchase->tenant_codigo)
+            ->where('user_id', $purchase->user_id)
+            ->whereKey($ticketIds)
+            ->get();
+
+        if ($tickets->isEmpty()) {
+            return;
+        }
+
+        $this->mailService
+            ->forTenant($purchase->tenant_codigo)
+            ->send(
+                $this->recipientFor($purchase),
+                'Tus tickets ya están disponibles',
+                view('mail.notifications.tickets-available', compact('purchase', 'tickets'))->render(),
+            );
+    }
+
+    private function recipientFor(Purchase $purchase): string
+    {
+        return (string) ($purchase->email ?: $purchase->user?->email);
+    }
+}