[Order] Show payment info only if paid via BTCPay Server

modules/btcpay/btcpay.php

@@ -334,12 +334,23 @@ public function hookDisplayOrderDetail(array $params): ?string
 		$storeID = $this->configuration->get(Constants::CONFIGURATION_BTCPAY_STORE_ID);
 
 		try {
+			// Get the payment methods
+			$paymentMethods = $client->invoice()->getPaymentMethods($storeID, $invoiceId);
+
+			// Determine if any payments have been made via BTCPay Sever
+			$hasPayments = array_reduce($paymentMethods, static fn ($hasPayments, $paymentMethod) => $hasPayments || !empty($paymentMethod->getPayments()), false);
+
+			// If not, there is no need to show anything
+			if (!$hasPayments) {
+				return null;
+			}
+
 			// Prepare smarty
 			$this->context->smarty->assign([
 				'serverURL'      => $serverUrl,
 				'storeCurrency'  => Currency::getCurrencyInstance($cart->id_currency)->getSymbol(),
 				'invoice'        => $client->invoice()->getInvoice($storeID, $invoiceId),
-				'paymentMethods' => $client->invoice()->getPaymentMethods($storeID, $invoiceId),
+				'paymentMethods' => $paymentMethods,
 			]);
 
 			return $this->display(__FILE__, 'views/templates/hooks/order_detail.tpl');