Refactor BtcBlockchainSettings module to SwiftUI

UnstoppableWallet/UnstoppableWallet/Models/BtcRestoreMode.swift

@@ -1,7 +1,11 @@
-enum BtcRestoreMode: String, CaseIterable {
+enum BtcRestoreMode: String, CaseIterable, Identifiable {
     case api
     case blockchain
 
+    var id: Self {
+        self
+    }
+
     var title: String {
         switch self {
         case .api: return "API"

UnstoppableWallet/UnstoppableWallet/Modules/BtcBlockchainSettings/BtcBlockchainSettingsModule.swift

@@ -1,15 +1,15 @@
+import SwiftUI
 import UIKit
-import ThemeKit
 import MarketKit
 
 struct BtcBlockchainSettingsModule {
 
     static func viewController(blockchain: Blockchain) -> UIViewController {
         let service = BtcBlockchainSettingsService(blockchain: blockchain, btcBlockchainManager: App.shared.btcBlockchainManager)
         let viewModel = BtcBlockchainSettingsViewModel(service: service)
-        let viewController = BtcBlockchainSettingsViewController(viewModel: viewModel)
+        let view = BtcBlockchainSettingsView(viewModel: viewModel)
 
-        return ThemeNavigationController(rootViewController: viewController)
+        return UIHostingController(rootView: view)
     }
 
 }

UnstoppableWallet/UnstoppableWallet/Modules/BtcBlockchainSettings/BtcBlockchainSettingsService.swift

@@ -1,45 +1,24 @@
-import RxSwift
-import RxRelay
 import MarketKit
 
 class BtcBlockchainSettingsService {
     let blockchain: Blockchain
     private let btcBlockchainManager: BtcBlockchainManager
-    private let disposeBag = DisposeBag()
 
-    var restoreMode: BtcRestoreMode {
-        didSet {
-            syncHasChanges()
-        }
-    }
-
-    private let hasChangesRelay = BehaviorRelay<Bool>(value: false)
+    let currentRestoreMode: BtcRestoreMode
 
     init(blockchain: Blockchain, btcBlockchainManager: BtcBlockchainManager) {
         self.blockchain = blockchain
         self.btcBlockchainManager = btcBlockchainManager
 
-        restoreMode = btcBlockchainManager.restoreMode(blockchainType: blockchain.type)
-    }
-
-    private func syncHasChanges() {
-        let initialRestoreMode = btcBlockchainManager.restoreMode(blockchainType: blockchain.type)
-
-        hasChangesRelay.accept(restoreMode != initialRestoreMode)
+        currentRestoreMode = btcBlockchainManager.restoreMode(blockchainType: blockchain.type)
     }
 
 }
 
 extension BtcBlockchainSettingsService {
 
-    var hasChangesObservable: Observable<Bool> {
-        hasChangesRelay.asObservable()
-    }
-
-    func save() {
-        if restoreMode != btcBlockchainManager.restoreMode(blockchainType: blockchain.type) {
-            btcBlockchainManager.save(restoreMode: restoreMode, blockchainType: blockchain.type)
-        }
+    func save(restoreMode: BtcRestoreMode) {
+        btcBlockchainManager.save(restoreMode: restoreMode, blockchainType: blockchain.type)
     }
 
 }

UnstoppableWallet/UnstoppableWallet/Modules/BtcBlockchainSettings/BtcBlockchainSettingsView.swift

@@ -0,0 +1,76 @@
+import SwiftUI
+import SDWebImageSwiftUI
+
+struct BtcBlockchainSettingsView: View {
+    @ObservedObject var viewModel: BtcBlockchainSettingsViewModel
+
+    @Environment(\.presentationMode) var presentationMode
+    @State var infoPresented = false
+
+    var body: some View {
+        ThemeNavigationView {
+            ThemeView {
+                VStack(spacing: 0) {
+                    ScrollView {
+                        VStack(spacing: .margin24) {
+                            HighlightedTextView(text: "btc_blockchain_settings.restore_source.alert".localized(viewModel.title))
+
+                            VStack(spacing: 0) {
+                                ListSectionInfoHeader(text: "btc_blockchain_settings.restore_source".localized) {
+                                    infoPresented = true
+                                }
+                                        .sheet(isPresented: $infoPresented) {
+                                            InfoModule.restoreSourceInfo
+                                        }
+
+                                ListSection {
+                                    ForEach(viewModel.restoreModes) { restoreMode in
+                                        ClickableRow(action: {
+                                            viewModel.selectedRestoreMode = restoreMode
+                                        }) {
+                                            VStack(spacing: 1) {
+                                                Text(restoreMode.title).themeBody()
+                                                Text(restoreMode.description).themeSubhead2()
+                                            }
+
+                                            if restoreMode == viewModel.selectedRestoreMode {
+                                                Image("check_1_20").themeIcon(color: .themeJacob)
+                                            }
+                                        }
+                                    }
+                                }
+
+                                ListSectionFooter(text: "btc_blockchain_settings.restore_source.description".localized)
+                            }
+                        }
+                                .padding(EdgeInsets(top: .margin12, leading: .margin16, bottom: .margin32, trailing: .margin16))
+                    }
+
+                    Button(action: {
+                        viewModel.onTapSave()
+                        presentationMode.wrappedValue.dismiss()
+                    }) {
+                        Text("Save")
+                    }
+                            .disabled(!viewModel.saveEnabled)
+                }
+            }
+                    .navigationBarTitle(viewModel.title)
+                    .toolbar {
+                        ToolbarItem(placement: .navigationBarLeading) {
+                            WebImage(url: URL(string: viewModel.iconUrl))
+                                    .resizable()
+                                    .scaledToFit()
+                                    .frame(width: .iconSize24, height: .iconSize24)
+                        }
+
+                        ToolbarItem(placement: .navigationBarTrailing) {
+                            Button("button.cancel".localized) {
+                                presentationMode.wrappedValue.dismiss()
+                            }
+                        }
+                    }
+        }
+    }
+
+}

UnstoppableWallet/UnstoppableWallet/Modules/BtcBlockchainSettings/BtcBlockchainSettingsViewModel.swift

@@ -1,42 +1,27 @@
-import RxSwift
-import RxRelay
-import RxCocoa
+import SwiftUI
 
-class BtcBlockchainSettingsViewModel {
+class BtcBlockchainSettingsViewModel: ObservableObject {
     private let service: BtcBlockchainSettingsService
-    private let disposeBag = DisposeBag()
 
-    private let restoreModeViewItemsRelay = BehaviorRelay<[ViewItem]>(value: [])
-    private let finishRelay = PublishRelay<()>()
+    let restoreModes: [BtcRestoreMode] = BtcRestoreMode.allCases
 
-    init(service: BtcBlockchainSettingsService) {
-        self.service = service
-
-        syncRestoreModeState()
-    }
-
-    private func syncRestoreModeState() {
-        let viewItems = BtcRestoreMode.allCases.map { mode in
-            ViewItem(name: mode.title, description: mode.description, selected: mode == service.restoreMode)
+    @Published var selectedRestoreMode: BtcRestoreMode {
+        didSet {
+            saveEnabled = selectedRestoreMode != service.currentRestoreMode
         }
-        restoreModeViewItemsRelay.accept(viewItems)
     }
 
-}
+    @Published var saveEnabled = false
 
-extension BtcBlockchainSettingsViewModel {
+    init(service: BtcBlockchainSettingsService) {
+        self.service = service
 
-    var restoreModeViewItemsDriver: Driver<[ViewItem]> {
-        restoreModeViewItemsRelay.asDriver()
+        selectedRestoreMode = service.currentRestoreMode
     }
 
-    var canSaveDriver: Driver<Bool> {
-        service.hasChangesObservable.asDriver(onErrorJustReturn: false)
-    }
+}
 
-    var finishSignal: Signal<()> {
-        finishRelay.asSignal()
-    }
+extension BtcBlockchainSettingsViewModel {
 
     var title: String {
         service.blockchain.name
@@ -46,24 +31,8 @@ extension BtcBlockchainSettingsViewModel {
         service.blockchain.type.imageUrl
     }
 
-    func onSelectRestoreMode(index: Int) {
-        service.restoreMode = BtcRestoreMode.allCases[index]
-        syncRestoreModeState()
-    }
-
     func onTapSave() {
-        service.save()
-        finishRelay.accept(())
-    }
-
-}
-
-extension BtcBlockchainSettingsViewModel {
-
-    struct ViewItem {
-        let name: String
-        let description: String
-        let selected: Bool
+        service.save(restoreMode: selectedRestoreMode)
     }
 
 }