fix(core data): remove core data from the project

StepMap/ContentView.swift

@@ -9,78 +9,29 @@ import SwiftUI
 import CoreData
 
 struct ContentView: View {
-    @Environment(\.managedObjectContext) private var viewContext
     
-    @FetchRequest(
+    // TODO: create a map
-        sortDescriptors: [NSSortDescriptor(keyPath: \Item.timestamp, ascending: true)],
+    // Add navigation to the map
-        animation: .default)
+    // Display the calculated distance and how long will it take by walking
-    private var items: FetchedResults<Item>
+    // Get walkingStepLength from HealthKit
+    // Show how many steps does the route take
+    // Get walkingSpeed
+    // show how long does the route take with said walking speed
 
     var body: some View {
         NavigationView {
             List {
-                ForEach(items) { item in
+                Text("HER")
-                    NavigationLink {
-                        Text("Item at \(item.timestamp!, formatter: itemFormatter)")
-                    } label: {
-                        Text(item.timestamp!, formatter: itemFormatter)
-                    }
-                }
-                .onDelete(perform: deleteItems)
             }
             .toolbar {
                 ToolbarItem(placement: .navigationBarTrailing) {
-                    EditButton()
+                    Text("Edit")
-                }
-                ToolbarItem {
-                    Button(action: addItem) {
-                        Label("Add Item", systemImage: "plus")
-                    }
                 }
             }
             Text("Select an item")
         }
     }
-
-    private func addItem() {
-        withAnimation {
-            let newItem = Item(context: viewContext)
-            newItem.timestamp = Date()
-
-            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)")
-            }
-        }
-    }
-
-    private func deleteItems(offsets: IndexSet) {
-        withAnimation {
-            offsets.map { items[$0] }.forEach(viewContext.delete)
-
-            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)")
-            }
-        }
-    }
 }
-
-private let itemFormatter: DateFormatter = {
-    let formatter = DateFormatter()
-    formatter.dateStyle = .short
-    formatter.timeStyle = .medium
-    return formatter
-}()
-
 #Preview {
-    ContentView().environment(\.managedObjectContext, PersistenceController.preview.container.viewContext)
+    ContentView()
 }

StepMap/Persistence.swift

@@ -1,57 +0,0 @@
-//
-//  Persistence.swift
-//  StepMap
-//
-//  Created by Oliver Hnát on 23.11.2024.
-//
-
-import CoreData
-
-struct PersistenceController {
-    static let shared = PersistenceController()
-
-    @MainActor
-    static let preview: PersistenceController = {
-        let result = PersistenceController(inMemory: true)
-        let viewContext = result.container.viewContext
-        for _ in 0..<10 {
-            let newItem = Item(context: viewContext)
-            newItem.timestamp = Date()
-        }
-        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
-    }()
-
-    let container: NSPersistentContainer
-
-    init(inMemory: Bool = false) {
-        container = NSPersistentContainer(name: "StepMap")
-        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)")
-            }
-        })
-        container.viewContext.automaticallyMergesChangesFromParent = true
-    }
-}

StepMap/StepMap.xcdatamodeld/.xccurrentversion

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>_XCCurrentVersionName</key>
-	<string>StepMap.xcdatamodel</string>
-</dict>
-</plist>

StepMap/StepMap.xcdatamodeld/StepMap.xcdatamodel/contents

@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-<model type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="1" systemVersion="11A491" minimumToolsVersion="Automatic" sourceLanguage="Swift" usedWithCloudKit="false" userDefinedModelVersionIdentifier="">
-    <entity name="Item" representedClassName="Item" syncable="YES" codeGenerationType="class">
-        <attribute name="timestamp" optional="YES" attributeType="Date" usesScalarValueType="NO"/>
-    </entity>
-    <elements>
-        <element name="Item" positionX="-63" positionY="-18" width="128" height="44"/>
-    </elements>
-</model>

StepMap/StepMapApp.swift

@@ -9,12 +9,10 @@ import SwiftUI
 
 @main
 struct StepMapApp: App {
-    let persistenceController = PersistenceController.shared
 
     var body: some Scene {
         WindowGroup {
             ContentView()
-                .environment(\.managedObjectContext, persistenceController.container.viewContext)
         }
     }
 }