Add CoreData

Firebonk/App/ContentView.swift

@@ -8,31 +8,51 @@
 import SwiftUI
 
 struct ContentView: View {
+    @State private var user: User?
 
     var body: some View {
-        TabView {
-            Dashboard()
-                // Badge can show e.g. number of notifications or new posts
-                //.badge(2)
-                .tabItem {
-                    Label("dashboard".localized(tableName: "General"), systemImage: "house.fill")
-                }
-            People()
-                .tabItem {
-                    Label("people".localized(tableName: "General"), systemImage: "person.3.fill")
-                }
-            Spaces()
-                .tabItem {
-                    Label("spaces".localized(tableName: "General"), systemImage: "circle.circle")
-                }
-            Profile()
-                .tabItem{
-                    Label("profile".localized(tableName: "General"), systemImage: "person")
-                }
+        if(self.userInfoPresent()) {
+            TabView {
+                Dashboard()
+                    // Badge can show e.g. number of notifications or new posts
+                    //.badge(2)
+                    .tabItem {
+                        Label("dashboard".localized(tableName: "General"), systemImage: "house.fill")
+                    }
+                People()
+                    .tabItem {
+                        Label("people".localized(tableName: "General"), systemImage: "person.3.fill")
+                    }
+                Spaces()
+                    .tabItem {
+                        Label("spaces".localized(tableName: "General"), systemImage: "circle.circle")
+                    }
+                Profile()
+                    .tabItem{
+                        Label("profile".localized(tableName: "General"), systemImage: "person")
+                    }
+            }
+        } else {
+            Login()
         }
     }
 }
 
+extension ContentView {
+    func userInfoPresent() -> Bool {
+        let users = User.getAll()
+        if(users.count < 1) {
+            return false
+        }
+        
+        let user: User = users[0]
+        print("Users: ")
+        print(user)
+        self.user = user
+        return true
+    }
+}
+
 struct ContentView_Previews: PreviewProvider {
     static var previews: some View {
         ContentView()

Firebonk/App/FirebonkApp.swift

@@ -9,9 +9,12 @@ import SwiftUI
 
 @main
 struct FirebonkApp: App {
+    let persistenceController = PersistenceController.shared
+    
     var body: some Scene {
         WindowGroup {
             ContentView()
+                .environment(\.managedObjectContext, persistenceController.context)
         }
     }
 }

Firebonk/CoreData/Firebonk.xcdatamodeld/Firebonk.xcdatamodel/contents

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<model type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="21513" systemVersion="22C65" minimumToolsVersion="Automatic" sourceLanguage="Swift" userDefinedModelVersionIdentifier="">
+    <entity name="User" representedClassName="User" syncable="YES">
+        <attribute name="firstName" optional="YES" attributeType="String"/>
+        <attribute name="jwt" optional="YES" attributeType="String"/>
+        <attribute name="username" optional="YES" attributeType="String"/>
+    </entity>
+</model>

Firebonk/CoreData/Models/User+CoreDataClass.swift

@@ -0,0 +1,43 @@
+//
+//  User+CoreDataClass.swift
+//  Firebonk
+//
+//  Created by Patrick Müller on 13.01.23.
+//
+
+import Foundation
+import CoreData
+
+@objc(User)
+public class User: NSManagedObject {
+    @nonobjc public class func getAll() -> [User] {
+        let managedContext =
+            PersistenceController.shared.context
+        
+        do {
+            return try managedContext.fetch(User.fetchRequest())
+        } catch let error as NSError {
+            print("Could not fetch. \(error), \(error.userInfo)")
+            return []
+        }
+    }
+    
+    @nonobjc public class func getSpecified(sortDescriptors: [NSSortDescriptor] = [], searchPredicate: NSPredicate? = nil) -> [User]{
+        let managedContext =
+            PersistenceController.shared.context
+        
+        let fetchRequest: NSFetchRequest = User.fetchRequest()
+
+        fetchRequest.sortDescriptors = sortDescriptors
+        if(searchPredicate != nil) {
+            fetchRequest.predicate = searchPredicate
+        }
+        
+        do {
+            return try managedContext.fetch(fetchRequest)
+        } catch let error as NSError {
+            print("Could not fetch. \(error), \(error.userInfo)")
+            return []
+        }
+    }
+}

Firebonk/CoreData/Models/User+CoreDataProperties.swift

@@ -0,0 +1,26 @@
+//
+//  User+CoreDataProperties.swift
+//  Firebonk
+//
+//  Created by Patrick Müller on 13.01.23.
+//
+
+import Foundation
+import CoreData
+
+
+extension User {
+
+    @nonobjc public class func fetchRequest() -> NSFetchRequest<User> {
+        return NSFetchRequest<User>(entityName: "User")
+    }
+
+    @NSManaged public var username: String?
+    @NSManaged public var jwt: String?
+    @NSManaged public var firstName: String?
+
+}
+
+extension User : Identifiable {
+
+}

Firebonk/CoreData/Persistence.swift

@@ -0,0 +1,78 @@
+//
+//  Persistence.swift
+//  Firebonk
+//
+//  Created by Patrick Müller on 13.01.23.
+//
+
+import Foundation
+import CoreData
+
+struct PersistenceController {
+    // Singleton
+    static let shared = PersistenceController()
+    
+    // Cloud Kit container
+    let container: NSPersistentCloudKitContainer
+    
+    // Managed object context
+    public var context: NSManagedObjectContext {
+        get {
+            return self.container.viewContext
+        }
+    }
+    
+    // MARK: - Constructor
+    init(inMemory: Bool = false) {
+        container = NSPersistentCloudKitContainer(name: "Firebonk")
+        if inMemory {
+            container.persistentStoreDescriptions.first!.url = URL(fileURLWithPath: "/dev/null")
+        }
+        container.loadPersistentStores(completionHandler: { (storeDescription, error) in
+            if let error = error as NSError? {
+                // Replace this implementation with code to handle the error appropriately.
+                // fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
+                
+                /*
+                 Typical reasons for an error here include:
+                 * The parent directory does not exist, cannot be created, or disallows writing.
+                 * The persistent store is not accessible, due to permissions or data protection when the device is locked.
+                 * The device is out of space.
+                 * The store could not be migrated to the current model version.
+                 Check the error message to determine what the actual problem was.
+                 */
+                fatalError("Unresolved error \(error), \(error.userInfo)")
+            }
+        })
+    }
+    
+    // MARK: - Core Data Saving support
+    
+    public func save() {
+        if self.context.hasChanges {
+            do {
+                try self.context.save()
+                print("In PersistenceController.shared.save()")
+            } catch {
+                let nserror = error as NSError
+                fatalError("Unresolved error \(nserror), \(nserror.userInfo)")
+            }
+        }
+    }
+    
+    // MARK: - Preview content
+    static var preview: PersistenceController = {
+        let result = PersistenceController(inMemory: true)
+        let viewContext = result.container.viewContext
+        
+        do {
+            try viewContext.save()
+        } catch {
+            // Replace this implementation with code to handle the error appropriately.
+            // fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
+            let nsError = error as NSError
+            fatalError("Unresolved error \(nsError), \(nsError.userInfo)")
+        }
+        return result
+    }()
+}

Firebonk/Views/Other/Login.swift

@@ -0,0 +1,31 @@
+//
+//  Login.swift
+//  Firebonk
+//
+//  Created by Patrick Müller on 13.01.23.
+//
+
+import SwiftUI
+
+struct Login: View {
+    var body: some View {
+        Text("Login screen")
+    }
+}
+
+extension Login {
+    func saveUserData() {
+        let user = User(context: PersistenceController.shared.context)
+        user.username = "Paddy"
+        user.jwt = ""
+        user.firstName = "Patrick"
+        
+        PersistenceController.shared.save()
+    }
+}
+
+struct Login_Previews: PreviewProvider {
+    static var previews: some View {
+        Login()
+    }
+}