safe-ios/Multisig/UI/SwiftUI/Settings/App Settings/AdvancedAppSettings.swift

//
//  AdvancedAppSettings.swift
//  Multisig
//
//  Created by Dmitry Bespalov on 15.05.20.
//  Copyright © 2020 Gnosis Ltd. All rights reserved.
//

import SwiftUI

struct AdvancedAppSettings: View {

    @ObservedObject
    var theme: Theme = App.shared.theme
    
    @State var showFCMToken = false
    
    var token: String {
        Multisig.App.shared.notificationHandler.token ?? ""
    }

    var body: some View {
        List {
            Section(header: SectionHeader("TRACKING")) {
                ToggleTrackingRow()
            }

            DataSharingInfo()

            // NOTE: disabling to debug crash reporting in production environment
            if !(App.configuration.services.environment == .production) ||
                FirebaseRemoteConfig.shared.value(key: .crashDebugEnabled) == "YES" {
                Section(header: SectionHeader("DEBUG")) {
                    Button(action: {
                        fatalError()
                    }) {
                        Text("Crash the App").body()
                    }

                    Button(action: {
                        LogService.shared.error("Non-fatal triggerred", error: "Test non-fatal error (id \(Int.random(in: 0...10_000)))")
                    }) {
                        Text("Trigger non-fatal error").body()
                    }
                    
                    Button {
                        showFCMToken = true
                    } label: {
                        Text("Show FCM Token").body()
                    }
                    .alert("FCM Registration Token", isPresented: $showFCMToken) {
                        CopyButton(token) {
                            Text("Copy")
                        }
                        Button("Close", role: .cancel) { }
                    } message: {
                        Text(token)
                    }
                }
            }
        }
        .onAppear {
            Tracker.trackEvent(.settingsAppAdvanced)
        }
        .navigationBarTitle("Advanced", displayMode: .inline)
    }

    struct ToggleTrackingRow: View {
        @State
        private var trackingEnabled = AppSettings.trackingEnabled

        var body: some View {
            VStack {
                Toggle(isOn: $trackingEnabled.didSet { enabled in
                    AppSettings.trackingEnabled = enabled
                }) {
                    Text("Share Usage and Crash Data").headline()
                }
                .frame(height: 60)
                .toggleStyle(SwitchToggleStyle(tint: Color.success))
            }
        }
    }

    struct DataSharingInfo: View {
        var body: some View {
            VStack {
                Text("By sharing usage data, you are helping us improve the app with anonymized app usage data")
                    .body(.gray).frame(minHeight: 50)
                HStack {
                    BrowseLinkButton(title: "What data is shared?", url: App.configuration.legal.privacyURL)
                    Spacer()
                }
            }
            .padding()
            .background(Color.backgroundPrimary)
            .listRowInsets(EdgeInsets(top: 0, leading: 0, bottom: 0, trailing: 0))
        }
    }
}

/// https://stackoverflow.com/questions/56996272/how-can-i-trigger-an-action-when-a-swiftui-toggle-is-toggled
fileprivate extension Binding {
    func didSet(execute: @escaping (Value) -> Void) -> Binding {
        return Binding(
            get: { self.wrappedValue },
            set: {
                self.wrappedValue = $0
                execute($0)
            }
        )
    }
}

struct AdvancedAppSettings_Previews: PreviewProvider {
    static var previews: some View {
        AdvancedAppSettings()
    }
}