add sheet to add exercises

WorkoutsPlus/ContentView.swift

@@ -10,7 +10,10 @@ import SwiftData
 
 struct ContentView: View {
 		@Environment(\.modelContext) private var modelContext
-		@Query private var items: [Exercise]
+		@Query private var exercises: [Exercise]
+		
+		@State private var isAddingNewExercise = false
+		@State private var selectedExercise: Exercise?
 		
 		let initialDataSet = [
 				"Pull-up",
@@ -23,47 +26,59 @@ struct ContentView: View {
 		var body: some View {
 				NavigationSplitView {
 						List {
-								ForEach(items) { item in
+								ForEach(exercises) { exercise in
 										NavigationLink {
-												Text("Item at \(item.name)")
+												Text(exercise.name)
 										} label: {
-												Text(item.name)
+												Text(exercise.name)
 										}
 								}
-								.onDelete(perform: deleteItems)
+								.onDelete(perform: deleteExercises)
 						}
 						.onAppear {
-								if items.isEmpty {
-										loadInitialData(exercises: initialDataSet )
+								if exercises.isEmpty {
+										loadInitialData(exercises: initialDataSet)
 								}
 						}
 						.toolbar {
 								ToolbarItem(placement: .navigationBarTrailing) {
-										EditButton()
-								}
-								ToolbarItem {
-										Button(action: addItem) {
-												Label("Add Item", systemImage: "plus")
+										Button {
+												addExercise()
+										} label: {
+												Label("Add Exercise", systemImage: "plus")
 										}
 								}
 						}
+						.sheet(isPresented: $isAddingNewExercise) {
+								ExerciseDetailsView(exercise: $selectedExercise, isEditing: false)
+										.onDisappear {
+												if let selectedExercise = selectedExercise, !selectedExercise.name.isEmpty {
+														saveNewExercise()
+												}
+										}
+						}
 				} detail: {
-						Text("Select an item")
+						Text("Select an exercise")
 				}
 		}
 		
-		private func addItem() {
-				withAnimation {
-						let newItem = Exercise(name: "New Exercise")
-						modelContext.insert(newItem)
-				}
+		private func addExercise() {
+				selectedExercise = Exercise(name: "")
+				isAddingNewExercise = true
 		}
 		
-		private func deleteItems(offsets: IndexSet) {
+		private func saveNewExercise() {
+				guard let newExercise = selectedExercise else { return }
+				modelContext.insert(newExercise)
+				try? modelContext.save()
+		}
+		
+		private func deleteExercises(offsets: IndexSet) {
 				withAnimation {
 						for index in offsets {
-								modelContext.delete(items[index])
+								modelContext.delete(exercises[index])
 						}
+						try? modelContext.save()
 				}
 		}
 		
@@ -79,12 +94,10 @@ struct ContentView: View {
 						modelContext.insert(item)
 				}
 				
-				try? modelContext.save()  // Daten speichern
+				try? modelContext.save()
 		}
 }
 
-
-
 #Preview {
 		ContentView()
 				.modelContainer(for: Exercise.self, inMemory: true)

WorkoutsPlus/ExerciseDetailsView.swift

@@ -0,0 +1,62 @@
+//
+//  ExerciseDetailsView.swift
+//  WorkoutsPlus
+//
+//  Created by Felix Förtsch on 10.08.24.
+//
+
+import SwiftUI
+
+struct ExerciseDetailsView: View {
+		@Environment(\.dismiss) private var dismiss
+		@Environment(\.modelContext) private var modelContext
+		
+		@Binding var exercise: Exercise?
+		var isEditing: Bool
+		
+		var body: some View {
+				NavigationView {
+						Form {
+								TextField("Exercise Name", text: Binding(
+										get: { exercise?.name ?? "" },
+										set: { newName in
+												if exercise != nil {
+														exercise?.name = newName
+												}
+										}
+								))
+						}
+						.navigationTitle(isEditing ? "Edit Exercise" : "Add Exercise")
+						.toolbar {
+								ToolbarItem(placement: .navigationBarLeading) {
+										Button("Cancel") {
+												dismiss()
+										}
+								}
+								ToolbarItem(placement: .navigationBarTrailing) {
+										Button("Save") {
+												saveItem()
+												dismiss()
+										}
+								}
+						}
+				}
+		}
+		
+		private func saveItem() {
+				if modelContext.hasChanges {
+						do {
+								try modelContext.save()
+						} catch {
+								print("Failed to save item: \(error.localizedDescription)")
+						}
+				}
+		}
+}
+
+struct ExerciseDetailsView_Previews: PreviewProvider {
+		static var previews: some View {
+				let sampleItem = Exercise(name: "Sample Item")
+				ExerciseDetailsView(exercise: .constant(sampleItem), isEditing: false)
+		}
+}