refactor: remove generatePixQRCode function and related usage from README and example

Author: mCodex

README.md

@@ -22,7 +22,6 @@ npm install react-native-plugpag-nitro react-native-nitro-modules
 import {
   initializeAndActivatePinPad,
   doPayment,
-  generatePixQRCode,
   useTransactionEvent,
   PaymentType,
   ErrorCode
@@ -76,13 +75,6 @@ const result = await doPayment({
 });
 ```
 
-#### `generatePixQRCode(amount, userReference?)`
-Generate PIX QR code string.
-
-```typescript
-const qrString = await generatePixQRCode(2500); // R$ 25.00
-```
-
 #### `useTransactionEvent()`
 Real-time payment event monitoring hook.
 
@@ -197,14 +189,6 @@ const result = await doPayment({
 });
 ```
 
-#### `generatePixQRCode(amount: number, userReference?: string)`
-Generates a PIX QR code string for payment.
-
-```typescript
-const qrString = await generatePixQRCode(2500); // R$ 25.00
-// Returns the PIX QR code string to display/use
-```
-
 #### `refundPayment(options)`
 Refunds a previous payment transaction.
 
@@ -280,8 +264,7 @@ import {
   ErrorCode,
   doPayment,
   useTransactionEvent,
-  initializeAndActivatePinPad,
-  generatePixQRCode
+  initializeAndActivatePinPad
 } from 'react-native-plugpag-nitro';
 
 function PaymentScreen() {
@@ -330,15 +313,6 @@ function PaymentScreen() {
     }
   };
 
-  const handlePixPayment = async () => {
-    try {
-      const qrString = await generatePixQRCode(5000); // R$ 50.00
-      Alert.alert('PIX QR Code', qrString);
-    } catch (error) {
-      Alert.alert('PIX Error', error.message);
-    }
-  };
-
   return (
     <View style={{ padding: 20 }}>
       <Text>Terminal: {isInitialized ? '✅ Ready' : '❌ Not Ready'}</Text>

example/src/App.tsx

@@ -13,7 +13,6 @@ import {
   initializeAndActivatePinPad,
   doPayment,
   refundPayment,
-  generatePixQRCode,
   useTransactionEvent,
   getTerminalSerialNumber,
   PaymentType,
@@ -124,6 +123,38 @@ export default function App() {
     setIsProcessing(false);
   };
 
+  // Credit payment
+  const handlePIXPayment = async () => {
+    if (!isInitialized) {
+      Alert.alert('⚠️ Aviso', 'Por favor, inicialize o terminal primeiro');
+      return;
+    }
+
+    setIsProcessing(true);
+    try {
+      const result = await doPayment({
+        amount: 1500, // R$ 15.00
+        type: PaymentType.PIX,
+      });
+      setLastPayment(result);
+
+      if (result.result === ErrorCode.OK) {
+        Alert.alert(
+          '✅ Pagamento Aprovado',
+          `Transação realizada com sucesso!\nCódigo: ${result.transactionCode}\nValor: R$ 25,00`
+        );
+      } else {
+        Alert.alert(
+          '❌ Pagamento Negado',
+          result.message || 'Transação falhou'
+        );
+      }
+    } catch (e: any) {
+      Alert.alert('❌ Erro', e.message);
+    }
+    setIsProcessing(false);
+  };
+
   // Installment payment
   const handleInstallmentPayment = async () => {
     if (!isInitialized) {
@@ -158,16 +189,6 @@ export default function App() {
     setIsProcessing(false);
   };
 
-  // Generate PIX QR code
-  const handleGeneratePix = async () => {
-    try {
-      const qrString = await generatePixQRCode(5000); // R$ 50.00
-      Alert.alert('Código QR PIX', qrString);
-    } catch (e: any) {
-      Alert.alert('❌ Erro PIX', e.message);
-    }
-  };
-
   // Refund last payment
   const handleRefund = async () => {
     if (!lastPayment?.transactionCode || !lastPayment.transactionId) {
@@ -263,6 +284,14 @@ export default function App() {
         <Text style={styles.buttonText}>Pagamento Débito - R$ 15,00</Text>
       </TouchableOpacity>
 
+      <TouchableOpacity
+        style={styles.button}
+        onPress={handlePIXPayment}
+        disabled={isProcessing || !isInitialized}
+      >
+        <Text style={styles.buttonText}>PIX - R$ 15,00</Text>
+      </TouchableOpacity>
+
       <TouchableOpacity
         style={styles.button}
         onPress={handleInstallmentPayment}
@@ -273,10 +302,6 @@ export default function App() {
         </Text>
       </TouchableOpacity>
 
-      <TouchableOpacity style={styles.button} onPress={handleGeneratePix}>
-        <Text style={styles.buttonText}>Gerar QR PIX - R$ 50,00</Text>
-      </TouchableOpacity>
-
       <TouchableOpacity
         style={[styles.button, styles.refundButton]}
         onPress={handleRefund}

src/index.tsx

@@ -212,24 +212,6 @@ export async function reprintCustomerReceipt(): Promise<void> {
   );
 }
 
-/**
- * Generate a PIX QR code string for custom UI
- * @param amount Payment amount in cents
- * @param userReference Optional reference for transaction
- * @returns QR code string from transaction result message
- */
-export async function generatePixQRCode(
-  amount: number,
-  userReference?: string
-): Promise<string> {
-  const result = await doPayment({
-    amount,
-    type: PaymentType.PIX,
-    userReference,
-  });
-  return result.message ?? '';
-}
-
 /**
  * Simple transaction status checker
  * Helper function to check if a transaction result indicates success