//
//  ActiveWorkoutSession.swift
//  WorkoutsPlus
//
//  Created by Felix Förtsch on 12.09.24.
//

import SwiftUI
import SwiftData

// This view can only be viewed, if there exists a WorkoutSession that can be considered active (a person working out).
struct ActiveWorkoutSession: View {
		@Default(\.isWorkingOut) var isWorkingOut
		
		@Binding var activeWorkoutSession: WorkoutSession
		
		var body: some View {
				VStack {
						List {
								Section {
										ForEach(activeWorkoutSession.workoutSessionItems.reversed()) { workoutSessionItem in
												ActiveWorkoutSessionListItem(workoutSessionItem: workoutSessionItem)
										}
								}
						}.listStyle(.plain)
						
						VStack {
								Text(activeWorkoutSession.name)
								ActiveWorkoutSessionControls(session: $activeWorkoutSession)
						}
						.frame(height: 200)
				}
				.background(.bar)
				// .navigationTitle(activeWorkoutSession.name)
				// .navigationBarTitleDisplayMode(.inline)
				.toolbar {
						Button(action: {
								isWorkingOut = false
								activeWorkoutSession.isPaused.toggle()
						}) {
								HStack {
										Image(systemName: "stop.fill")
										Text("Stop")
								}
						}
						.fontWeight(.bold)
						.fontDesign(.rounded)
						.tint(.red)
				}
		}
		
		private func getActiveWorkoutItems(activeWorkout: Workout?) -> [WorkoutItem] {
				guard let activeWorkout else { return [] }
				return activeWorkout.getWorkoutItems()
		}
		
		//		TODO: Put this somewhere general
		private func getItem<Item: Nameable>(from array: [Item], by id: String) -> Item? {
				let filteredItems = array.filter { $0.id == UUID(uuidString: id) }
				return filteredItems.count == 1 ? filteredItems.first : nil
		}
}

#Preview {
		@Previewable @State var activeWorkoutSession = Workout.sampleData.first!.start()
		
		NavigationStack {
				ActiveWorkoutSession(activeWorkoutSession: $activeWorkoutSession)
		}
		.onAppear {
				Defaults.shared.isWorkingOut = false
		}
		.modelContainer(SampleData.shared.modelContainer)
}