Change AltStore naming to SideStore

SideBackup/ViewController.swift

@@ -0,0 +1,206 @@
+//
+//  ViewController.swift
+//  AltBackup
+//
+//  Created by Riley Testut on 5/11/20.
+//  Copyright © 2020 Riley Testut. All rights reserved.
+//
+
+import UIKit
+
+extension Bundle
+{
+    var appName: String? {
+        let appName =
+            Bundle.main.object(forInfoDictionaryKey: "CFBundleDisplayName") as? String ??
+            Bundle.main.object(forInfoDictionaryKey: kCFBundleNameKey as String) as? String
+        return appName
+    }
+}
+
+extension ViewController
+{
+    enum BackupOperation
+    {
+        case backup
+        case restore
+    }
+}
+
+class ViewController: UIViewController
+{
+    private let backupController = BackupController()
+    
+    private var currentOperation: BackupOperation? {
+        didSet {
+            DispatchQueue.main.async {
+                self.update()
+            }
+        }
+    }
+    
+    private var textLabel: UILabel!
+    private var detailTextLabel: UILabel!
+    private var activityIndicatorView: UIActivityIndicatorView!
+    
+    override var preferredStatusBarStyle: UIStatusBarStyle {
+        return .lightContent
+    }
+    
+    override init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: Bundle?)
+    {
+        super.init(nibName: nibNameOrNil, bundle: nibBundleOrNil)
+        
+        NotificationCenter.default.addObserver(self, selector: #selector(ViewController.backup), name: AppDelegate.startBackupNotification, object: nil)
+        NotificationCenter.default.addObserver(self, selector: #selector(ViewController.restore), name: AppDelegate.startRestoreNotification, object: nil)
+        NotificationCenter.default.addObserver(self, selector: #selector(ViewController.didEnterBackground(_:)), name: UIApplication.didEnterBackgroundNotification, object: nil)
+    }
+    
+    required init?(coder: NSCoder) {
+        fatalError()
+    }
+    
+    override func viewDidLoad()
+    {
+        super.viewDidLoad()
+        
+        self.view.backgroundColor = .altstoreBackground
+        
+        self.textLabel = UILabel(frame: .zero)
+        self.textLabel.font = UIFont.preferredFont(forTextStyle: .title2)
+        self.textLabel.textColor = .altstoreText
+        self.textLabel.textAlignment = .center
+        self.textLabel.numberOfLines = 0
+        
+        self.detailTextLabel = UILabel(frame: .zero)
+        self.detailTextLabel.font = UIFont.preferredFont(forTextStyle: .body)
+        self.detailTextLabel.textColor = .altstoreText
+        self.detailTextLabel.textAlignment = .center
+        self.detailTextLabel.numberOfLines = 0
+        
+        self.activityIndicatorView = UIActivityIndicatorView(style: .whiteLarge)
+        self.activityIndicatorView.color = .altstoreText
+        self.activityIndicatorView.startAnimating()
+        
+        #if DEBUG
+        let button1 = UIButton(type: .system)
+        button1.setTitle("Backup", for: .normal)
+        button1.setTitleColor(.white, for: .normal)
+        button1.titleLabel?.font = UIFont.preferredFont(forTextStyle: .body)
+        button1.addTarget(self, action: #selector(ViewController.backup), for: .primaryActionTriggered)
+        
+        let button2 = UIButton(type: .system)
+        button2.setTitle("Restore", for: .normal)
+        button2.setTitleColor(.white, for: .normal)
+        button2.titleLabel?.font = UIFont.preferredFont(forTextStyle: .body)
+        button2.addTarget(self, action: #selector(ViewController.restore), for: .primaryActionTriggered)
+        
+        let arrangedSubviews = [self.textLabel!, self.detailTextLabel!, self.activityIndicatorView!, button1, button2]
+        #else
+        let arrangedSubviews = [self.textLabel!, self.detailTextLabel!, self.activityIndicatorView!]
+        #endif
+        
+        let stackView = UIStackView(arrangedSubviews: arrangedSubviews)
+        stackView.translatesAutoresizingMaskIntoConstraints = false
+        stackView.spacing = 22
+        stackView.axis = .vertical
+        stackView.alignment = .center
+        self.view.addSubview(stackView)
+        
+        NSLayoutConstraint.activate([stackView.centerXAnchor.constraint(equalTo: self.view.centerXAnchor),
+                                     stackView.centerYAnchor.constraint(equalTo: self.view.centerYAnchor),
+                                     stackView.leadingAnchor.constraint(greaterThanOrEqualToSystemSpacingAfter: self.view.safeAreaLayoutGuide.leadingAnchor, multiplier: 1.0),
+                                     self.view.safeAreaLayoutGuide.trailingAnchor.constraint(greaterThanOrEqualToSystemSpacingAfter: stackView.trailingAnchor, multiplier: 1.0)])
+        
+        self.update()
+    }
+}
+
+private extension ViewController
+{
+    @objc func backup()
+    {
+        self.currentOperation = .backup
+        
+        self.backupController.performBackup { (result) in
+            let appName = Bundle.main.appName ?? NSLocalizedString("App", comment: "")
+
+            let title = String(format: NSLocalizedString("%@ could not be backed up.", comment: ""), appName)
+            self.process(result, errorTitle: title)
+        }
+    }
+    
+    @objc func restore()
+    {
+        self.currentOperation = .restore
+        
+        self.backupController.restoreBackup { (result) in
+            let appName = Bundle.main.appName ?? NSLocalizedString("App", comment: "")
+
+            let title = String(format: NSLocalizedString("%@ could not be restored.", comment: ""), appName)
+            self.process(result, errorTitle: title)
+        }
+    }
+    
+    func update()
+    {
+        switch self.currentOperation
+        {
+        case .backup:
+            self.textLabel.text = NSLocalizedString("Backing up app data…", comment: "")
+            self.detailTextLabel.isHidden = true
+            self.activityIndicatorView.startAnimating()
+            
+        case .restore:
+            self.textLabel.text = NSLocalizedString("Restoring app data…", comment: "")
+            self.detailTextLabel.isHidden = true
+            self.activityIndicatorView.startAnimating()
+            
+        case .none:
+            self.textLabel.text = String(format: NSLocalizedString("%@ is inactive.", comment: ""),
+                                         Bundle.main.appName ?? NSLocalizedString("App", comment: ""))
+                                            
+            self.detailTextLabel.text = String(format: NSLocalizedString("Refresh %@ in AltStore to continue using it.", comment: ""),
+                                               Bundle.main.appName ?? NSLocalizedString("this app", comment: ""))
+            
+            self.detailTextLabel.isHidden = false
+            self.activityIndicatorView.stopAnimating()
+        }
+    }
+}
+
+private extension ViewController
+{
+    func process(_ result: Result<Void, Error>, errorTitle: String)
+    {
+        DispatchQueue.main.async {
+            switch result
+            {
+            case .success: break
+            case .failure(let error as NSError):
+                let message: String
+
+                if let sourceDescription = error.sourceDescription
+                {
+                    message = error.localizedDescription + "\n\n" + sourceDescription
+                }
+                else
+                {
+                    message = error.localizedDescription
+                }
+
+                let alertController = UIAlertController(title: errorTitle, message: message, preferredStyle: .alert)
+                alertController.addAction(UIAlertAction(title: NSLocalizedString("OK", comment: ""), style: .default, handler: nil))
+                self.present(alertController, animated: true, completion: nil)
+            }
+            
+            NotificationCenter.default.post(name: AppDelegate.operationDidFinishNotification, object: nil, userInfo: [AppDelegate.operationResultKey: result])
+        }
+    }
+    
+    @objc func didEnterBackground(_ notification: Notification)
+    {
+        // Reset UI once we've left app (but not before).
+        self.currentOperation = nil
+    }
+}