add new exercise creation behavior to workouts

WorkoutsPlus/Workout/WorkoutLibrary.swift

@@ -12,52 +12,68 @@ struct WorkoutLibrary: View {
 		@Environment(\.modelContext) private var modelContext
 		@Query(sort: \Workout.name) private var workouts: [Workout]
 		
-		@State private var newWorkout: Workout?
-
+		@State private var newWorkout: Workout = Workout(name: "")
+		@State private var newWorkoutName: String = ""
+		@State private var isAddingWorkout: Bool = false
+		@FocusState private var isInputFieldFocused: Bool
+		
+		@State private var searchText: String = ""
+		var filteredItems: [Workout] {
+				if searchText.isEmpty {
+						return workouts
+				} else {
+						return workouts.filter { $0.name.localizedCaseInsensitiveContains(searchText) }
+				}
+		}
+		
 		var body: some View {
 				NavigationView {
 						Group {
-								if !workouts.isEmpty {
-										List {
-												ForEach(workouts) { workout in
-														NavigationLink {
-																WorkoutDetail(workout: workout)
-														} label: {
-																Text(workout.name)
-														}
-												}
-												.onDelete(perform: deleteWorkout)
-												Button(action: addWorkout) {
-														Label("Add Workout", systemImage: "plus")
+								List {
+										ForEach(filteredItems) { workout in
+												NavigationLink {
+														WorkoutDetail(workout: workout)
+												} label: {
+														Text(workout.name)
 												}
 										}
-								} else {
-										ContentUnavailableView {
-												Label("No Workouts", systemImage: "figure.run.square.stack")
+										.onDelete(perform: deleteWorkout)
+										if isAddingWorkout {
+												TextField("New Workout", text: $newWorkoutName, onCommit: {
+														newWorkout.name = newWorkoutName
+														saveWorkout(workout: newWorkout)
+														isAddingWorkout = false
+												})
+												.textInputAutocapitalization(.words)
+												.focused($isInputFieldFocused)
+										}
+										Button(action: {
+												addWorkout()
+										}) {
+												HStack {
+														Image(systemName: "plus.circle.fill")
+																.foregroundStyle(.green)
+														Text("Add Workout")
+												}
 										}
 								}
+								.searchable(text: $searchText)
 						}
-						.navigationBarTitle("Workouts")
-						.toolbar {
-								ToolbarItem() {
-										EditButton()
-								}
-						}
-						.sheet(item: $newWorkout) { workout in
-								NavigationStack {
-										AddWorkout(workout: workout)
-								}
-								.presentationDetents([.medium])
-								.interactiveDismissDisabled()
+				}
+				.navigationBarTitle("Workouts")
+				.toolbar {
+						ToolbarItem() {
+								EditButton()
 						}
 				}
 		}
 		
 		private func addWorkout() {
 				withAnimation {
-						let item = Workout(name: "")
-						modelContext.insert(item)
-						newWorkout = item
+						newWorkout = Workout(name: "")
+						newWorkoutName = ""
+						isAddingWorkout = true
+						isInputFieldFocused = true
 				}
 		}