Basic setup of ConnectionsTableViewController.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

WireGuard/ViewControllers/UITableView+WireGuard.swift

@@ -0,0 +1,36 @@
+//
+//  UITableView+WireGuard.swift
+//  WireGuard
+//
+//  Created by Jeroen Leenarts on 24-05-18.
+//  Copyright © 2018 WireGuard. All rights reserved.
+//
+
+import Foundation
+
+import UIKit
+
+extension UITableView {
+
+    func register<T: Identifyable>(type: T.Type, prefix: String = "") where T: UITableViewCell {
+        register(type, forCellReuseIdentifier: prefix + type.identifier)
+    }
+
+    func dequeueReusableCell<T: Identifyable>(type: T.Type, for indexPath: IndexPath, prefix: String = "") -> T where T: UITableViewCell {
+        return dequeueReusableCell(withIdentifier: prefix + type.identifier, for: indexPath) as! T // swiftlint:disable:this force_cast
+    }
+
+    func registerNib<T: Identifyable>(type: T.Type, prefix: String = "") where T: UITableViewCell {
+        let nib = UINib(nibName: prefix + type.identifier, bundle: nil)
+        register(nib, forCellReuseIdentifier: prefix + type.identifier)
+    }
+
+    func registerNib<T: Identifyable>(type: T.Type, prefix: String = "") where T: UITableViewHeaderFooterView {
+        let nib = UINib(nibName: prefix + type.identifier, bundle: nil)
+        register(nib, forHeaderFooterViewReuseIdentifier: prefix + type.identifier)
+    }
+
+    func dequeueReusableHeaderFooterView<T: Identifyable>(type: T.Type, prefix: String = "") -> T where T: UITableViewHeaderFooterView {
+        return dequeueReusableHeaderFooterView(withIdentifier: prefix + type.identifier) as! T // swiftlint:disable:this force_cast
+    }
+}

Wireguard.xcodeproj/project.pbxproj

@@ -19,7 +19,7 @@
 		4A4BAD0E20B5F6C300F12B28 /* Coordinator.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4A4BAD0D20B5F6C300F12B28 /* Coordinator.swift */; };
 		4A4BAD1020B5F6EC00F12B28 /* RootCoordinator.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4A4BAD0F20B5F6EC00F12B28 /* RootCoordinator.swift */; };
 		4A4BAD1320B5F82400F12B28 /* Identifyable.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4A4BAD1220B5F82400F12B28 /* Identifyable.swift */; };
-		4A4BAD1720B5F8DE00F12B28 /* Wireguard.xcdatamodeld in Sources */ = {isa = PBXBuildFile; fileRef = 4A4BAD1520B5F8DE00F12B28 /* Wireguard.xcdatamodeld */; };
+		4A4BAD1720B5F8DE00F12B28 /* WireGuard.xcdatamodeld in Sources */ = {isa = PBXBuildFile; fileRef = 4A4BAD1520B5F8DE00F12B28 /* WireGuard.xcdatamodeld */; };
 		4A4BAD1A20B5F8FF00F12B28 /* Profile+CoreDataClass.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4A4BAD1820B5F8FF00F12B28 /* Profile+CoreDataClass.swift */; };
 		4A4BAD1B20B5F8FF00F12B28 /* Profile+CoreDataProperties.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4A4BAD1920B5F8FF00F12B28 /* Profile+CoreDataProperties.swift */; };
 		4A4BAD2020B6026900F12B28 /* Peer+CoreDataProperties.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4A4BAD1C20B6026900F12B28 /* Peer+CoreDataProperties.swift */; };
@@ -28,6 +28,7 @@
 		4A4BAD2320B6026900F12B28 /* Interface+CoreDataClass.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4A4BAD1F20B6026900F12B28 /* Interface+CoreDataClass.swift */; };
 		4A7F6EDD20B674CD00B260B7 /* Address+CoreDataClass.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4A7F6EDB20B674CD00B260B7 /* Address+CoreDataClass.swift */; };
 		4A7F6EDE20B674CD00B260B7 /* Address+CoreDataProperties.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4A7F6EDC20B674CD00B260B7 /* Address+CoreDataProperties.swift */; };
+		4A8AABD820B6A79100B6D8C1 /* UITableView+WireGuard.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4A8AABD720B6A79100B6D8C1 /* UITableView+WireGuard.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -58,7 +59,7 @@
 		4A4BAD0D20B5F6C300F12B28 /* Coordinator.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Coordinator.swift; sourceTree = "<group>"; };
 		4A4BAD0F20B5F6EC00F12B28 /* RootCoordinator.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RootCoordinator.swift; sourceTree = "<group>"; };
 		4A4BAD1220B5F82400F12B28 /* Identifyable.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Identifyable.swift; sourceTree = "<group>"; };
-		4A4BAD1620B5F8DE00F12B28 /* Wireguard.xcdatamodel */ = {isa = PBXFileReference; lastKnownFileType = wrapper.xcdatamodel; path = Wireguard.xcdatamodel; sourceTree = "<group>"; };
+		4A4BAD1620B5F8DE00F12B28 /* WireGuard.xcdatamodel */ = {isa = PBXFileReference; lastKnownFileType = wrapper.xcdatamodel; path = WireGuard.xcdatamodel; sourceTree = "<group>"; };
 		4A4BAD1820B5F8FF00F12B28 /* Profile+CoreDataClass.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Profile+CoreDataClass.swift"; sourceTree = "<group>"; };
 		4A4BAD1920B5F8FF00F12B28 /* Profile+CoreDataProperties.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Profile+CoreDataProperties.swift"; sourceTree = "<group>"; };
 		4A4BAD1C20B6026900F12B28 /* Peer+CoreDataProperties.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = "Peer+CoreDataProperties.swift"; path = "/Users/jeroenleenarts/code/wireguard-ios/Wireguard/Models/Peer+CoreDataProperties.swift"; sourceTree = "<absolute>"; };
@@ -67,6 +68,7 @@
 		4A4BAD1F20B6026900F12B28 /* Interface+CoreDataClass.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = "Interface+CoreDataClass.swift"; path = "/Users/jeroenleenarts/code/wireguard-ios/Wireguard/Models/Interface+CoreDataClass.swift"; sourceTree = "<absolute>"; };
 		4A7F6EDB20B674CD00B260B7 /* Address+CoreDataClass.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Address+CoreDataClass.swift"; sourceTree = "<group>"; };
 		4A7F6EDC20B674CD00B260B7 /* Address+CoreDataProperties.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Address+CoreDataProperties.swift"; sourceTree = "<group>"; };
+		4A8AABD720B6A79100B6D8C1 /* UITableView+WireGuard.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "UITableView+WireGuard.swift"; sourceTree = "<group>"; };
 		82069F3AE97A82448F990CFB /* Pods-Wireguard.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Wireguard.debug.xcconfig"; path = "Pods/Target Support Files/Pods-Wireguard/Pods-Wireguard.debug.xcconfig"; sourceTree = "<group>"; };
 		861983CAE8FDC13BC83E7E04 /* Pods_WireGuard.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_WireGuard.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		8BF50C7EC60CD91BBA05E51F /* Pods_Wireguard.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_Wireguard.framework; sourceTree = BUILT_PRODUCTS_DIR; };
@@ -160,6 +162,7 @@
 			children = (
 				4A4BAD1220B5F82400F12B28 /* Identifyable.swift */,
 				4A4BACE720B5F1BF00F12B28 /* ConnectionsTableViewController.swift */,
+				4A8AABD720B6A79100B6D8C1 /* UITableView+WireGuard.swift */,
 			);
 			path = ViewControllers;
 			sourceTree = "<group>";
@@ -175,7 +178,7 @@
 				4A4BAD1E20B6026900F12B28 /* Interface+CoreDataProperties.swift */,
 				4A4BAD1820B5F8FF00F12B28 /* Profile+CoreDataClass.swift */,
 				4A4BAD1920B5F8FF00F12B28 /* Profile+CoreDataProperties.swift */,
-				4A4BAD1520B5F8DE00F12B28 /* Wireguard.xcdatamodeld */,
+				4A4BAD1520B5F8DE00F12B28 /* WireGuard.xcdatamodeld */,
 			);
 			path = Models;
 			sourceTree = "<group>";
@@ -393,7 +396,7 @@
 				4A4BAD2220B6026900F12B28 /* Interface+CoreDataProperties.swift in Sources */,
 				4A7F6EDE20B674CD00B260B7 /* Address+CoreDataProperties.swift in Sources */,
 				4A4BAD1320B5F82400F12B28 /* Identifyable.swift in Sources */,
-				4A4BAD1720B5F8DE00F12B28 /* Wireguard.xcdatamodeld in Sources */,
+				4A4BAD1720B5F8DE00F12B28 /* WireGuard.xcdatamodeld in Sources */,
 				4A4BAD1A20B5F8FF00F12B28 /* Profile+CoreDataClass.swift in Sources */,
 				4A4BACE820B5F1BF00F12B28 /* ConnectionsTableViewController.swift in Sources */,
 				4A4BAD1020B5F6EC00F12B28 /* RootCoordinator.swift in Sources */,
@@ -401,6 +404,7 @@
 				4A4BAD2020B6026900F12B28 /* Peer+CoreDataProperties.swift in Sources */,
 				4A4BAD2320B6026900F12B28 /* Interface+CoreDataClass.swift in Sources */,
 				4A7F6EDD20B674CD00B260B7 /* Address+CoreDataClass.swift in Sources */,
+				4A8AABD820B6A79100B6D8C1 /* UITableView+WireGuard.swift in Sources */,
 				4A4BAD2120B6026900F12B28 /* Peer+CoreDataClass.swift in Sources */,
 				4A4BAD1B20B5F8FF00F12B28 /* Profile+CoreDataProperties.swift in Sources */,
 				4A4BACE620B5F1BF00F12B28 /* AppDelegate.swift in Sources */,
@@ -674,13 +678,13 @@
 /* End XCConfigurationList section */
 
 /* Begin XCVersionGroup section */
-		4A4BAD1520B5F8DE00F12B28 /* Wireguard.xcdatamodeld */ = {
+		4A4BAD1520B5F8DE00F12B28 /* WireGuard.xcdatamodeld */ = {
 			isa = XCVersionGroup;
 			children = (
-				4A4BAD1620B5F8DE00F12B28 /* Wireguard.xcdatamodel */,
+				4A4BAD1620B5F8DE00F12B28 /* WireGuard.xcdatamodel */,
 			);
-			currentVersion = 4A4BAD1620B5F8DE00F12B28 /* Wireguard.xcdatamodel */;
+			currentVersion = 4A4BAD1620B5F8DE00F12B28 /* WireGuard.xcdatamodel */;
-			path = Wireguard.xcdatamodeld;
+			path = WireGuard.xcdatamodeld;
 			sourceTree = "<group>";
 			versionGroupType = wrapper.xcdatamodel;
 		};

Wireguard/Base.lproj/Main.storyboard

@@ -9,21 +9,30 @@
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
     <scenes>
-        <!--Connections Table View Controller-->
+        <!--Profiles-->
         <scene sceneID="Tud-vM-cYZ">
             <objects>
-                <tableViewController storyboardIdentifier="ConnectionsTableViewController" id="kTU-BV-32R" customClass="ConnectionsTableViewController" customModule="Wireguard" customModuleProvider="target" sceneMemberID="viewController">
+                <tableViewController storyboardIdentifier="ConnectionsTableViewController" id="kTU-BV-32R" customClass="ConnectionsTableViewController" customModule="WireGuard" customModuleProvider="target" sceneMemberID="viewController">
                     <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" id="AJg-r0-KJH">
                         <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                         <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                         <prototypes>
-                            <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" id="fM3-cC-KPN">
+                            <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" accessoryType="detailDisclosureButton" indentationWidth="10" reuseIdentifier="ProfileTableViewCell" textLabel="hzX-lc-GyT" style="IBUITableViewCellStyleDefault" id="fM3-cC-KPN" customClass="ProfileTableViewCell" customModule="WireGuard" customModuleProvider="target">
                                 <rect key="frame" x="0.0" y="28" width="375" height="44"/>
                                 <autoresizingMask key="autoresizingMask"/>
-                                <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="fM3-cC-KPN" id="Rv6-XK-aK2">
+                                <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="fM3-cC-KPN" id="Rv6-XK-aK2" customClass="ProfileTableViewCell" customModule="WireGuard" customModuleProvider="target">
-                                    <rect key="frame" x="0.0" y="0.0" width="375" height="43.5"/>
+                                    <rect key="frame" x="0.0" y="0.0" width="307" height="43.5"/>
                                     <autoresizingMask key="autoresizingMask"/>
+                                    <subviews>
+                                        <label opaque="NO" multipleTouchEnabled="YES" contentMode="left" insetsLayoutMarginsFromSafeArea="NO" text="Title" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" id="hzX-lc-GyT">
+                                            <rect key="frame" x="16" y="0.0" width="291" height="43.5"/>
+                                            <autoresizingMask key="autoresizingMask"/>
+                                            <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                            <nil key="textColor"/>
+                                            <nil key="highlightedColor"/>
+                                        </label>
+                                    </subviews>
                                 </tableViewCellContentView>
                             </tableViewCell>
                         </prototypes>
@@ -32,6 +41,14 @@
                             <outlet property="delegate" destination="kTU-BV-32R" id="b6T-ZR-cmO"/>
                         </connections>
                     </tableView>
+                    <navigationItem key="navigationItem" title="Profiles" id="j0L-5U-jDs">
+                        <barButtonItem key="rightBarButtonItem" systemItem="add" id="h2H-H8-3Tn">
+                            <connections>
+                                <action selector="addProvider:" destination="kTU-BV-32R" id="xSg-ap-3Fx"/>
+                            </connections>
+                        </barButtonItem>
+                    </navigationItem>
+                    <simulatedNavigationBarMetrics key="simulatedTopBarMetrics" prompted="NO"/>
                 </tableViewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="4uZ-Vv-Fry" userLabel="First Responder" sceneMemberID="firstResponder"/>
             </objects>

Wireguard/Coordinators/AppCoordinator.swift

@@ -86,17 +86,21 @@ class AppCoordinator: RootViewCoordinator {
 extension AppCoordinator: ConnectionsTableViewControllerDelegate {
     func addProvider(connectionsTableViewController: ConnectionsTableViewController) {
         // TODO implement
+        print("Add provider")
     }
 
-    func settings(connectionsTableViewController: ConnectionsTableViewController) {
+    func connect(profile: Profile, connectionsTableViewController: ConnectionsTableViewController) {
         // TODO implement
+        print("connect profile \(profile)")
     }
 
-    func connect(profile: Profile) {
+    func configure(profile: Profile, connectionsTableViewController: ConnectionsTableViewController) {
         // TODO implement
+        print("configure profile \(profile)")
     }
 
-    func delete(profile: Profile) {
+    func delete(profile: Profile, connectionsTableViewController: ConnectionsTableViewController) {
         // TODO implement
+        print("delete profile \(profile)")
     }
 }

Wireguard/ViewControllers/ConnectionsTableViewController.swift

@@ -13,9 +13,9 @@ import BNRCoreDataStack
 
 protocol ConnectionsTableViewControllerDelegate: class {
     func addProvider(connectionsTableViewController: ConnectionsTableViewController)
-    func settings(connectionsTableViewController: ConnectionsTableViewController)
+    func connect(profile: Profile, connectionsTableViewController: ConnectionsTableViewController)
-    func connect(profile: Profile)
+    func configure(profile: Profile, connectionsTableViewController: ConnectionsTableViewController)
-    func delete(profile: Profile)
+    func delete(profile: Profile, connectionsTableViewController: ConnectionsTableViewController)
 }
 
 class ConnectionsTableViewController: UITableViewController {
@@ -23,16 +23,154 @@ class ConnectionsTableViewController: UITableViewController {
 
     var viewContext: NSManagedObjectContext!
 
+    private lazy var fetchedResultsController: FetchedResultsController<Profile> = {
+        let fetchRequest = NSFetchRequest<Profile>()
+        fetchRequest.entity = Profile.entity()
+        fetchRequest.sortDescriptors = [NSSortDescriptor(key: "title", ascending: true)]
+        let frc = FetchedResultsController<Profile>(fetchRequest: fetchRequest,
+                                                    managedObjectContext: viewContext)
+        frc.setDelegate(self.frcDelegate)
+        return frc
+    }()
+
+    private lazy var frcDelegate: ProfileFetchedResultsControllerDelegate = { // swiftlint:disable:this weak_delegate
+        return ProfileFetchedResultsControllerDelegate(tableView: self.tableView)
+    }()
+
     override func viewDidLoad() {
         super.viewDidLoad()
-        // Do any additional setup after loading the view, typically from a nib.
+        do {
+            try fetchedResultsController.performFetch()
+        } catch {
+            print("Failed to fetch objects: \(error)")
+        }
     }
 
-    override func didReceiveMemoryWarning() {
+    @IBAction func addProvider(_ sender: Any) {
-        super.didReceiveMemoryWarning()
+        delegate?.addProvider(connectionsTableViewController: self)
-        // Dispose of any resources that can be recreated.
     }
 
+    override func numberOfSections(in tableView: UITableView) -> Int {
+        return 1
+    }
+
+    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        return fetchedResultsController.sections?[0].objects.count ?? 0
+    }
+
+    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        let cell = tableView.dequeueReusableCell(type: ProfileTableViewCell.self, for: indexPath)
+
+        guard let sections = fetchedResultsController.sections else {
+            fatalError("FetchedResultsController \(fetchedResultsController) should have sections, but found nil")
+        }
+
+        let section = sections[indexPath.section]
+        let profile = section.objects[indexPath.row]
+
+        cell.textLabel?.text = profile.title
+
+        return cell
+    }
+
+    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+        guard let sections = fetchedResultsController.sections else {
+            fatalError("FetchedResultsController \(fetchedResultsController) should have sections, but found nil")
+        }
+
+        let section = sections[indexPath.section]
+        let profile = section.objects[indexPath.row]
+
+        delegate?.connect(profile: profile, connectionsTableViewController: self)
+
+        tableView.deselectRow(at: indexPath, animated: true)
+    }
+
+    override func tableView(_ tableView: UITableView, accessoryButtonTappedForRowWith indexPath: IndexPath) {
+        guard let sections = fetchedResultsController.sections else {
+            fatalError("FetchedResultsController \(fetchedResultsController) should have sections, but found nil")
+        }
+
+        let section = sections[indexPath.section]
+        let profile = section.objects[indexPath.row]
+
+        delegate?.configure(profile: profile, connectionsTableViewController: self)
+
+    }
+
+    override func tableView(_ tableView: UITableView, canEditRowAt indexPath: IndexPath) -> Bool {
+        return true
+    }
+
+    override func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {
+        if editingStyle == .delete {
+
+            guard let sections = fetchedResultsController.sections else {
+                fatalError("FetchedResultsController \(fetchedResultsController) should have sections, but found nil")
+            }
+
+            let section = sections[indexPath.section]
+            let profile = section.objects[indexPath.row]
+
+            delegate?.delete(profile: profile, connectionsTableViewController: self)
+        }
+    }
 }
 
 extension ConnectionsTableViewController: Identifyable {}
+
+class ProfileFetchedResultsControllerDelegate: NSObject, FetchedResultsControllerDelegate {
+
+    private weak var tableView: UITableView?
+
+    // MARK: - Lifecycle
+    init(tableView: UITableView) {
+        self.tableView = tableView
+    }
+
+    func fetchedResultsControllerDidPerformFetch(_ controller: FetchedResultsController<Profile>) {
+        tableView?.reloadData()
+    }
+
+    func fetchedResultsControllerWillChangeContent(_ controller: FetchedResultsController<Profile>) {
+        tableView?.beginUpdates()
+    }
+
+    func fetchedResultsControllerDidChangeContent(_ controller: FetchedResultsController<Profile>) {
+        tableView?.endUpdates()
+    }
+
+    func fetchedResultsController(_ controller: FetchedResultsController<Profile>, didChangeObject change: FetchedResultsObjectChange<Profile>) {
+        guard let tableView = tableView else { return }
+        switch change {
+        case let .insert(_, indexPath):
+            tableView.insertRows(at: [indexPath], with: .automatic)
+
+        case let .delete(_, indexPath):
+            tableView.deleteRows(at: [indexPath], with: .automatic)
+
+        case let .move(_, fromIndexPath, toIndexPath):
+            tableView.moveRow(at: fromIndexPath, to: toIndexPath)
+
+        case let .update(_, indexPath):
+            tableView.reloadRows(at: [indexPath], with: .automatic)
+        }
+    }
+
+    func fetchedResultsController(_ controller: FetchedResultsController<Profile>, didChangeSection change: FetchedResultsSectionChange<Profile>) {
+        guard let tableView = tableView else { return }
+        switch change {
+        case let .insert(_, index):
+            tableView.insertSections(IndexSet(integer: index), with: .automatic)
+
+        case let .delete(_, index):
+            tableView.deleteSections(IndexSet(integer: index), with: .automatic)
+        }
+    }
+}
+
+class ProfileTableViewCell: UITableViewCell {
+
+}
+
+extension ProfileTableViewCell: Identifyable {}