feat: isMultipath and fingerprint

Author: reez

BDKSwiftExampleWallet.xcodeproj/project.pbxproj

@@ -69,6 +69,7 @@
 		AE91CEED2C0FDB70000AAD20 /* SentAndReceivedValues+Extensions.swift in Sources */ = {isa = PBXBuildFile; fileRef = AE91CEEC2C0FDB70000AAD20 /* SentAndReceivedValues+Extensions.swift */; };
 		AE91CEEF2C0FDBC7000AAD20 /* CanonicalTx+Extensions.swift in Sources */ = {isa = PBXBuildFile; fileRef = AE91CEEE2C0FDBC7000AAD20 /* CanonicalTx+Extensions.swift */; };
 		AE96F6622A424C400055623C /* BDKSwiftExampleWalletReceiveViewModelTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = AE96F6612A424C400055623C /* BDKSwiftExampleWalletReceiveViewModelTests.swift */; };
+		AEA1F6432CE43702004EC538 /* BitcoinDevKit in Frameworks */ = {isa = PBXBuildFile; productRef = AEA1F6422CE43702004EC538 /* BitcoinDevKit */; };
 		AEAB03112ABDDB86000C9528 /* FeeViewModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = AEAB03102ABDDB86000C9528 /* FeeViewModel.swift */; };
 		AEAB03132ABDDBF4000C9528 /* AmountViewModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = AEAB03122ABDDBF4000C9528 /* AmountViewModel.swift */; };
 		AEAF83B62B7BD4D10019B23B /* CodeScanner in Frameworks */ = {isa = PBXBuildFile; productRef = AEAF83B52B7BD4D10019B23B /* CodeScanner */; };
@@ -89,6 +90,7 @@
 		AEE6C74C2ABCB3E200442ADD /* Transaction+Extensions.swift in Sources */ = {isa = PBXBuildFile; fileRef = AEE6C74B2ABCB3E200442ADD /* Transaction+Extensions.swift */; };
 		AEE6C74F2ABCBA4600442ADD /* WalletSyncState.swift in Sources */ = {isa = PBXBuildFile; fileRef = AEE6C74E2ABCBA4600442ADD /* WalletSyncState.swift */; };
 		AEE83A492C07F54B00834468 /* BitcoinDevKit in Frameworks */ = {isa = PBXBuildFile; productRef = AEE83A482C07F54B00834468 /* BitcoinDevKit */; };
+		AEEA24572D136898000C1694 /* BitcoinDevKit in Frameworks */ = {isa = PBXBuildFile; productRef = AEEA24562D136898000C1694 /* BitcoinDevKit */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -1032,6 +1034,14 @@
 				kind = branch;
 			};
 		};
+		AEEA24552D136898000C1694 /* XCRemoteSwiftPackageReference "bdk-swift" */ = {
+			isa = XCRemoteSwiftPackageReference;
+			repositoryURL = "https://github.com/bitcoindevkit/bdk-swift.git";
+			requirement = {
+				kind = exactVersion;
+				version = "1.0.0-beta.6";
+			};
+		};
 /* End XCRemoteSwiftPackageReference section */
 
 /* Begin XCSwiftPackageProductDependency section */
@@ -1061,6 +1071,10 @@
 			package = AE7D5A0C2A7EE62200EAC8CE /* XCRemoteSwiftPackageReference "KeychainAccess" */;
 			productName = KeychainAccess;
 		};
+		AEA1F6422CE43702004EC538 /* BitcoinDevKit */ = {
+			isa = XCSwiftPackageProductDependency;
+			productName = BitcoinDevKit;
+		};
 		AEAF83B52B7BD4D10019B23B /* CodeScanner */ = {
 			isa = XCSwiftPackageProductDependency;
 			package = AEAF83B42B7BD4D10019B23B /* XCRemoteSwiftPackageReference "CodeScanner" */;
@@ -1075,6 +1089,11 @@
 			isa = XCSwiftPackageProductDependency;
 			productName = BitcoinDevKit;
 		};
+		AEEA24562D136898000C1694 /* BitcoinDevKit */ = {
+			isa = XCSwiftPackageProductDependency;
+			package = AEEA24552D136898000C1694 /* XCRemoteSwiftPackageReference "bdk-swift" */;
+			productName = BitcoinDevKit;
+		};
 /* End XCSwiftPackageProductDependency section */
 	};
 	rootObject = AE4984702A1BBBD6009951E2 /* Project object */;

BDKSwiftExampleWallet/Service/BDK Service/BDKService.swift

@@ -164,11 +164,28 @@ private class BDKService {
             throw WalletError.walletNotFound
         }
 
-        let cleanDescriptor =
-            descriptorString.split(separator: "#").first.map(String.init) ?? descriptorString
-        let descriptor = try Descriptor(descriptor: cleanDescriptor, network: network)
-        let changeDescriptorString = cleanDescriptor.replacingOccurrences(of: "/0/*", with: "/1/*")
-        let changeDescriptor = try Descriptor(descriptor: changeDescriptorString, network: network)
+        let descriptorStrings = descriptorString.components(separatedBy: "\n")
+            .map { $0.split(separator: "#").first?.trimmingCharacters(in: .whitespaces) ?? "" }
+            .filter { !$0.isEmpty }
+        let descriptor: Descriptor
+        let changeDescriptor: Descriptor
+        if descriptorStrings.count == 1 {
+            let parsedDescriptor = try Descriptor(
+                descriptor: descriptorStrings[0],
+                network: network
+            )
+            let singleDescriptors = try parsedDescriptor.toSingleDescriptors()
+            guard singleDescriptors.count >= 2 else {
+                throw WalletError.walletNotFound
+            }
+            descriptor = singleDescriptors[0]
+            changeDescriptor = singleDescriptors[1]
+        } else if descriptorStrings.count == 2 {
+            descriptor = try Descriptor(descriptor: descriptorStrings[0], network: network)
+            changeDescriptor = try Descriptor(descriptor: descriptorStrings[1], network: network)
+        } else {
+            throw WalletError.walletNotFound
+        }
 
         let backupInfo = BackupInfo(
             mnemonic: "",
@@ -211,10 +228,20 @@ private class BDKService {
             throw WalletError.walletNotFound
         }
 
-        let descriptorString = "tr(\(xpubString)/0/*)"
-        let changeDescriptorString = "tr(\(xpubString)/1/*)"
-        let descriptor = try Descriptor(descriptor: descriptorString, network: network)
-        let changeDescriptor = try Descriptor(descriptor: changeDescriptorString, network: network)
+        let descriptorPublicKey = try DescriptorPublicKey.fromString(publicKey: xpubString)
+        let fingerprint = descriptorPublicKey.masterFingerprint()
+        let descriptor = Descriptor.newBip86Public(
+            publicKey: descriptorPublicKey,
+            fingerprint: fingerprint,
+            keychain: .external,
+            network: network
+        )
+        let changeDescriptor = Descriptor.newBip86Public(
+            publicKey: descriptorPublicKey,
+            fingerprint: fingerprint,
+            keychain: .internal,
+            network: network
+        )
 
         let backupInfo = BackupInfo(
             mnemonic: "",