- add extractor for checking if delegation

Sources/KukaiCoreSwift/Factories/OperationFactory.swift

@@ -404,6 +404,18 @@ public class OperationFactory {
 			return nil
 		}
 
+		/**
+		 Filter and verify only 1 transaction exists thats setting a baker. If so return this operation, otherwise return false
+		 */
+		public static func isDelegate(operations: [Operation]) -> OperationDelegation? {
+			let filteredOperations = filterReveal(operations: operations)
+			if filteredOperations.count == 1, let op = filteredOperations.first as? OperationDelegation {
+				return op
+			}
+
+			return nil
+		}
+
 		/**
 		 Filter and verify only 1 transaction exists thats sending a token. If so return this operation, otherwise return false
 		 */

Tests/KukaiCoreSwiftTests/Factories/OperationFactoryTests.swift

@@ -549,6 +549,7 @@ class OperationFactoryTests: XCTestCase {
 		let dexToken = DipDupToken(symbol: "BLAH", address: "KT1def", tokenId: 123, decimals: 3, standard: .fa2, thumbnailUri: nil)
 		let dex = DipDupExchange(name: .quipuswap, address: "KT1abc", tezPool: "100000000000", tokenPool: "1000000000", sharesTotal: "100000", midPrice: "14", token: dexToken)
 		let swap = OperationFactory.swapXtzToToken(withDex: dex, xtzAmount: .init(fromNormalisedAmount: 14), minTokenAmount: .init(fromNormalisedAmount: 2, decimalPlaces: 3), walletAddress: "tz1abc", timeout: 60)
+		let delegate = OperationFactory.delegateOperation(to: "KT1abc", from: MockConstants.defaultHdWallet.address)
 
 
 		// is single transctions
@@ -567,6 +568,11 @@ class OperationFactoryTests: XCTestCase {
 		XCTAssert( OperationFactory.Extractor.isTezTransfer(operations: MockConstants.sendOperationWithReveal) != nil )
 
 
+		// Is Delegate
+		XCTAssert( OperationFactory.Extractor.isDelegate(operations: delegate) != nil )
+		XCTAssert( OperationFactory.Extractor.isDelegate(operations: opFA1) == nil )
+
+
 		// is token transfer
 		XCTAssert( OperationFactory.Extractor.isFaTokenTransfer(operations: xtzOp) == nil )