services_core/app/Services/Notification/Adapters/WhatsAppUnofficialAdapter.php

<?php

namespace App\Services\Notification\Adapters;

use App\Models\NotificationDelivery;
use App\Services\Notification\Contracts\NotificationChannelAdapter;
use Illuminate\Support\Facades\Http;
use Illuminate\Validation\ValidationException;

class WhatsAppUnofficialAdapter implements NotificationChannelAdapter
{
    public function send(NotificationDelivery $delivery): array
    {
        $config = $delivery->channelConfig;
        $credentials = $config?->credentials ?? [];
        $settings = $config?->settings ?? [];
        $url = $settings['send_url'] ?? null;
        if (! $url) {
            throw ValidationException::withMessages(['channel' => 'URL pengiriman gateway unofficial belum diatur.']);
        }
        $headers = [];
        if ($apiKey = $credentials['api_key'] ?? null) {
            $headers[$settings['api_key_header'] ?? 'X-API-Key'] = $apiKey;
        }
        $payload = [
            $settings['destination_field'] ?? 'number' => $delivery->destination,
            $settings['message_field'] ?? 'message' => $delivery->rendered_body,
            'instance_id' => $credentials['instance_id'] ?? null,
        ];
        $response = Http::withHeaders($headers)->timeout(30)->post($url, $payload)->throw()->json();

        return ['provider_message_id' => data_get($response, $settings['message_id_path'] ?? 'id'), 'response' => $response];
    }
}