workoutsplus/WorkoutsPlus/ExerciseDetailsView.swift

//
//  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)
		}
}