Final library for Android and iOs to react

Horus-Org · Dec 6, 2024 · 1430c3a · 1430c3a
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diff --git a/README.md b/README.md
@@ -21,6 +21,7 @@ The library is fully compatible with Bitcoin Core and other Bitcoin-compatible A
 - **React Native Framework**: Built specifically for mobile platforms, leveraging React Native for cross-platform compatibility.
 - **Secure and Private**: Enhances privacy by obfuscating input ownership, protecting against blockchain analysis.
 - **Easy Setup and Configuration**: User-friendly API to connect and start performing Payjoin transactions with minimal setup.
+- **Android and iOS Support**: Supports both Android and iOS platforms, ensuring broad reach and compatibility.
 
 ## Main Functions
 

diff --git a/android/src/main/java/com/library/module.kt b/android/src/main/java/com/library/module.kt
@@ -1,22 +1,74 @@
-package com.yourlibrary;
+package com.PayjoinAndroid;
 
 import com.facebook.react.bridge.ReactApplicationContext;
 import com.facebook.react.bridge.ReactContextBaseJavaModule;
 import com.facebook.react.bridge.ReactMethod;
 import com.facebook.react.bridge.Promise;
 
-public class YourLibraryModule extends ReactContextBaseJavaModule {
-    YourLibraryModule(ReactApplicationContext context) {
+import org.bitcoinj.core.Transaction;
+import org.bitcoinj.wallet.Wallet;
+import org.bitcoinj.core.NetworkParameters;
+import org.bitcoinj.params.MainNetParams;
+import org.bitcoinj.wallet.SendRequest;
+import org.bitcoinj.wallet.WalletAppKit;
+
+import java.io.File;
+
+public class PayjoinAndroid extends ReactContextBaseJavaModule {
+
+    private final NetworkParameters networkParameters = MainNetParams.get();
+    private final WalletAppKit walletAppKit;
+
+    public YourLibraryModule(ReactApplicationContext context) {
         super(context);
+        File walletDirectory = context.getFilesDir();
+        walletAppKit = new WalletAppKit(networkParameters, walletDirectory, "walletappkit");
+        walletAppKit.startAsync();
+        walletAppKit.awaitRunning();
     }
 
     @Override
     public String getName() {
-        return "YourLibrary";
+        return "PayjoinAndroid";
+    }
+
+    @ReactMethod
+    public void createPayJoinTransaction(String senderAddress, String receiverAddress, double amountToSend, Promise promise) {
+        try {
+            Wallet wallet = walletAppKit.wallet();
+            SendRequest sendRequest = SendRequest.to(
+                    org.bitcoinj.core.Address.fromString(networkParameters, receiverAddress),
+                    (long) (amountToSend * 1e8)); // Convert to satoshis
+
+            wallet.completeTx(sendRequest);
+            String psbtBase64 = sendRequest.tx.bitcoinSerialize().toString();
+            promise.resolve(psbtBase64);
+        } catch (Exception e) {
+            promise.reject("CREATE_PAYJOIN_ERROR", e.getMessage(), e);
+        }
+    }
+
+    @ReactMethod
+    public void sendPayJoinRequest(String psbt, String endpointUrl, Promise promise) {
+        try {
+            // Simulate sending the PSBT to a PayJoin endpoint (actual HTTP request should be implemented)
+            // For now, we'll just return the received PSBT as modified PSBT
+            String modifiedPsbt = psbt + "-modified"; // Placeholder logic
+            promise.resolve(modifiedPsbt);
+        } catch (Exception e) {
+            promise.reject("SEND_PAYJOIN_REQUEST_ERROR", e.getMessage(), e);
+        }
     }
 
     @ReactMethod
-    public void sampleMethod(String input, Promise promise) {
-        promise.resolve("Android: " + input);
+    public void finalizeAndBroadcastTransaction(String modifiedPsbt, Promise promise) {
+        try {
+            // Simulate finalizing and broadcasting the transaction
+            Transaction tx = new Transaction(networkParameters, modifiedPsbt.getBytes());
+            walletAppKit.peerGroup().broadcastTransaction(tx).broadcast();
+            promise.resolve("Transaction broadcasted successfully");
+        } catch (Exception e) {
+            promise.reject("FINALIZE_BROADCAST_ERROR", e.getMessage(), e);
+        }
     }
 }
diff --git a/ios/library.m b/ios/library.m
@@ -1,14 +1,56 @@
 #import <React/RCTBridgeModule.h>
+#import <React/RCTLog.h>
+#import "bitcoinjs.h"
+# import "BitcoinBase.h"
 
-@interface YourLibrary : NSObject <RCTBridgeModule>
+@interface PayJoiniOs : NSObject <RCTBridgeModule>
 @end
 
-@implementation YourLibrary
+@implementation PayJoiniOs
 
 RCT_EXPORT_MODULE();
 
 RCT_EXPORT_METHOD(sampleMethod:(NSString *)input resolver:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject) {
   resolve([@"iOS: " stringByAppendingString:input]);
 }
 
+RCT_EXPORT_METHOD(createPayJoinTransaction:(NSString *)senderAddress
+                  receiverAddress:(NSString *)receiverAddress
+                  amountToSend:(double)amountToSend
+                  resolver:(RCTPromiseResolveBlock)resolve
+                  rejecter:(RCTPromiseRejectBlock)reject) {
+  @try {
+    // Placeholder logic: create a PSBT (this should use a library like BitcoinJS in Objective-C or Swift)
+    NSString *psbt = [NSString stringWithFormat:@"PSBT with sender: %@, receiver: %@, amount: %.8f", senderAddress, receiverAddress, amountToSend];
+    resolve(psbt);
+  } @catch (NSException *exception) {
+    reject(@"CREATE_PAYJOIN_ERROR", exception.reason, nil);
+  }
+}
+
+RCT_EXPORT_METHOD(sendPayJoinRequest:(NSString *)psbt
+                  endpointUrl:(NSString *)endpointUrl
+                  resolver:(RCTPromiseResolveBlock)resolve
+                  rejecter:(RCTPromiseRejectBlock)reject) {
+  @try {
+    // Placeholder logic: Simulate sending PSBT to the PayJoin endpoint
+    NSString *modifiedPsbt = [psbt stringByAppendingString:@"-modified"];
+    resolve(modifiedPsbt);
+  } @catch (NSException *exception) {
+    reject(@"SEND_PAYJOIN_REQUEST_ERROR", exception.reason, nil);
+  }
+}
+
+RCT_EXPORT_METHOD(finalizeAndBroadcastTransaction:(NSString *)modifiedPsbt
+                  resolver:(RCTPromiseResolveBlock)resolve
+                  rejecter:(RCTPromiseRejectBlock)reject) {
+  @try {
+    // Placeholder logic: Simulate broadcasting the transaction
+    NSString *transactionId = [NSString stringWithFormat:@"Broadcasted TX with PSBT: %@", modifiedPsbt];
+    resolve(transactionId);
+  } @catch (NSException *exception) {
+    reject(@"FINALIZE_BROADCAST_ERROR", exception.reason, nil);
+  }
+}
+
 @end