feat(#36): add Mail notification on Low Battery

app/Notifications/Channels/WebhookChannel.php

@@ -0,0 +1,60 @@
+<?php
+
+namespace App\Notifications\Channels;
+
+use Exception;
+use GuzzleHttp\Client;
+use GuzzleHttp\Exception\GuzzleException;
+use GuzzleHttp\Psr7\Response;
+use Illuminate\Notifications\Notification;
+use Illuminate\Support\Arr;
+
+class WebhookChannel
+{
+    /** @var Client */
+    protected $client;
+
+    public function __construct(Client $client)
+    {
+        $this->client = $client;
+    }
+
+    /**
+     * Send the given notification.
+     *
+     * @param  mixed  $notifiable
+     *
+     * @throws Exception
+     * @throws GuzzleException
+     */
+    public function send($notifiable, Notification $notification): ?Response
+    {
+        $url = $notifiable->routeNotificationFor('webhook', $notification);
+
+        if (! $url) {
+            return null;
+        }
+
+        if (! method_exists($notification, 'toWebhook')) {
+            throw new Exception('Notification does not implement toWebhook method.');
+        }
+
+        $webhookData = $notification->toWebhook($notifiable)->toArray();
+        $response = $this->client->post($url, [
+            'query' => Arr::get($webhookData, 'query'),
+            'body' => json_encode(Arr::get($webhookData, 'data')),
+            'verify' => Arr::get($webhookData, 'verify'),
+            'headers' => Arr::get($webhookData, 'headers'),
+        ]);
+
+        if (! $response instanceof Response) {
+            throw new Exception('Webhook request did not return a valid GuzzleHttp\Psr7\Response.');
+        }
+
+        if ($response->getStatusCode() >= 300 || $response->getStatusCode() < 200) {
+            throw new Exception('Webhook request failed with status code: '.$response->getStatusCode());
+        }
+
+        return $response;
+    }
+}