namespace App\Services;

use Illuminate\Support\Facades\Http;

class SimServerService
{
    public static function sendDataRequest($network, $phone, $plan, $requestId)
    {
        $ussd = self::buildUssd($network, $phone, $plan);

        Http::withHeaders([
            'X-API-KEY' => env('SIM_SERVER_KEY'),
            'X-SIGNATURE' => hash_hmac(
                'sha256',
                $requestId,
                env('SIM_SERVER_SECRET')
            )
        ])->post(env('SIM_SERVER_URL'), [
            'network' => $network,
            'ussd' => $ussd,
            'request_id' => $requestId
        ]);
    }

    private static function buildUssd($network, $phone, $plan)
    {
        if ($network === 'MTN') {
            return "*461*2*1*$phone*1#";
        }

        if ($network === 'AIRTEL') {
            return "*312*$phone*$plan#";
        }

        return '';
    }
}