[ABW-3666] Fix Add gateway crash

RadixWallet/Clients/GatewaysClient/GatewaysClient+Interface.swift

@@ -41,7 +41,7 @@
 	public typealias AddGateway = @Sendable (Gateway) async throws -> Void
 	public typealias RemoveGateway = @Sendable (Gateway) async throws -> Void
 	public typealias ChangeGateway = @Sendable (Gateway) async throws -> Void
-	public typealias HasGateway = @Sendable (Url) async -> Bool
+	public typealias HasGateway = @Sendable (FfiUrl) async -> Bool
 }
 
 extension GatewaysClient {

RadixWallet/Features/GatewaySettingsFeature/Children/AddNewGateway/AddNewGateway+Reducer.swift

@@ -14,6 +14,7 @@ public struct AddNewGateway: Sendable, FeatureReducer {
 		var inputtedURL: String = ""
 		var errorText: String?
 		var addGatewayButtonState: ControlState = .disabled
+		fileprivate var ffiUrl: FfiUrl?
 
 		public init() {}
 	}
@@ -56,14 +57,14 @@ public struct AddNewGateway: Sendable, FeatureReducer {
 			}
 
 		case .addNewGatewayButtonTapped:
-			guard let url = URL(string: state.inputtedURL)?.httpsURL else { return .none }
+			guard let ffiUrl = state.ffiUrl else { return .none }
 
 			return .run { send in
-				let hasGateway = await gatewaysClient.hasGateway(url)
+				let hasGateway = await gatewaysClient.hasGateway(ffiUrl)
 				if hasGateway {
 					await send(.internal(.showDuplicateURLError))
 				} else {
-					await send(.internal(.validateNewGateway(url)))
+					await send(.internal(.validateNewGateway(ffiUrl.url)))
 				}
 			}
 
@@ -75,8 +76,13 @@ public struct AddNewGateway: Sendable, FeatureReducer {
 		case let .textFieldChanged(inputtedURL):
 			state.inputtedURL = inputtedURL
 			state.errorText = nil
-			let url = URL(string: inputtedURL)
-			state.addGatewayButtonState = url != nil ? .enabled : .disabled
+			if let url = URL(string: state.inputtedURL)?.httpsURL, let ffiUrl = try? FfiUrl(urlPath: url.absoluteString) {
+				state.ffiUrl = ffiUrl
+				state.addGatewayButtonState = .enabled
+			} else {
+				state.ffiUrl = nil
+				state.addGatewayButtonState = .disabled
+			}
 			return .none
 		}
 	}