commit d42dbe420faaca8ea921f2f6b06cc08a0992febe
parent fbd3c0b37db3482b85b1553d4decc5ca95832157
Author: Marc Stibane <marc@taler.net>
Date: Sun, 15 Jun 2025 08:57:11 +0200
Backup
Diffstat:
2 files changed, 135 insertions(+), 0 deletions(-)
diff --git a/TalerWallet1/Controllers/DebugViewC.swift b/TalerWallet1/Controllers/DebugViewC.swift
@@ -31,6 +31,7 @@ public let VIEW_SETTINGS = VIEW_BALANCES + 1 // 12 Settin
public let VIEW_ABOUT = VIEW_SETTINGS + 1 // 13 AboutView
public let VIEW_PAYMENT_SERVICES = VIEW_ABOUT + 1 // 14 ExchangeListView
public let VIEW_BANK_ACCOUNTS = VIEW_PAYMENT_SERVICES + 1 // 15 BankListView
+public let VIEW_BACKUP = VIEW_BANK_ACCOUNTS + 1 // 16 BackupView
// MARK: Transactions
public let VIEW_EMPTY_HISTORY = VIEW_EMPTY_WALLET + 10 // 20 TransactionsEmptyView
diff --git a/TalerWallet1/Views/Settings/BackupView.swift b/TalerWallet1/Views/Settings/BackupView.swift
@@ -0,0 +1,134 @@
+/*
+ * This file is part of GNU Taler, ©2022-25 Taler Systems S.A.
+ * See LICENSE.md
+ */
+/**
+ * @author Marc Stibane
+ */
+import SwiftUI
+import taler_swift
+import SymLog
+
+let PREFIX = "Taler-"
+
+/// This view shows the list of backups
+struct BackupView: View {
+ private let symLog = SymLogV(0)
+ let stack: CallStack
+ let navTitle: String
+
+ @EnvironmentObject private var model: WalletModel
+ @EnvironmentObject private var controller: Controller
+ @AppStorage("minimalistic") var minimalistic: Bool = false
+ @AppStorage("myListStyle") var myListStyle: MyListStyle = .automatic
+
+ @State private var amountLastUsed = Amount.zero(currency: EMPTYSTRING) // needed for Deposit, ignore
+ @State private var created: Bool = false
+ @State private var files: [String] = []
+ @State private var filename: String = ""
+ @State private var selectedBackup: String? = nil
+ @State private var showRestoreAlert: Bool = false
+
+
+ private func createBackup() {
+ created = true
+ Task {
+ let dateString = Date().iso
+ let stem = String(PREFIX + dateString)
+ if let backupFile = try? await model.exportDbToFile(stem: stem) {
+ filename = backupFile
+ }
+ }
+ }
+
+ private var dismissAlertButton: some View {
+ Button("Cancel", role: .cancel) {
+ showRestoreAlert = false
+ selectedBackup = nil
+ }
+ }
+ private var resetButton: some View {
+ Button("Restore", role: .destructive) { // TODO: WalletColors().errorColor
+// didReset = true
+
+ showRestoreAlert = false
+ Task { // runs on MainActor
+ symLog.log("❗️Restore \(selectedBackup)❗️")
+// try? await model.resetWalletCore()
+ selectedBackup = nil
+ }
+ }
+ }
+
+
+
+ @MainActor
+ private func viewDidLoad() async {
+ let fm = FileManager.default
+ if let docDirUrl = URL.docDirUrl {
+ if let contentsOfDocDir = try? fm.contentsOfDirectory(at: docDirUrl,
+ includingPropertiesForKeys: nil,
+ options: []) {
+ withAnimation { files = contentsOfDocDir.map { $0.lastPathComponent } }
+ }
+ }
+ }
+
+ var body: some View {
+#if PRINT_CHANGES
+ let _ = Self._printChanges()
+ let _ = symLog.vlog() // just to get the # to compare it with .onAppear & onDisappear
+#endif
+ let a11yLabelStr = String(localized: "Add bank account", comment: "a11y for the + button")
+ let addTitleStr = String(localized: "Add bank account", comment: "title of the addExchange alert")
+ let buttonTitle = String(localized: "Create Backup", comment: "button")
+
+
+ let backupHint = Text("Tap 'Create Backup' to make a copy of your digital money. Connect your iPhone to a computer, then use the Files dialog and copy that backup to your computer's harddisk.")
+
+ let restoreHint = Text("To restore your digital money, connect your iPhone to your computer, then use the Files dialog and copy a previously saved backup from your computer into the Taler Wallet.")
+
+ let backups = files.filter { $0.hasPrefix(PREFIX) }
+ List {
+ Section {
+ backupHint
+ .listRowSeparator(.hidden)
+ Button(buttonTitle) { createBackup() }
+ .buttonStyle(TalerButtonStyle(type: .bordered))
+ .padding()
+ .listRowSeparator(.hidden)
+ .disabled(created)
+ restoreHint
+ }
+#if DEBUG
+ Text(filename)
+#endif
+ if !backups.isEmpty {
+ Section {
+ ForEach(backups, id: \.self) { file in
+ Text(file)
+ .onTapGesture {
+ selectedBackup = file
+ }
+ }
+ }
+ }
+ }
+ .listStyle(myListStyle.style).anyView
+ .task { await viewDidLoad() }
+ .navigationTitle(navTitle)
+ .onChange(of: selectedBackup) { selected in
+ if selected != nil {
+ showRestoreAlert = true
+ }
+ }
+ .alert("Overwrite Wallet",
+ isPresented: $showRestoreAlert,
+ actions: { dismissAlertButton
+ resetButton },
+ message: { Text("Are you sure you want to overwrite your wallet with this backup?\nThis cannot be reverted, all money which is now still in your wallet will be lost.") })
+ .onAppear() {
+ DebugViewC.shared.setViewID(VIEW_BANK_ACCOUNTS, stack: stack.push())
+ }
+ } // body
+}
