//
//  ActiveWorkout.swift
//  WorkoutsPlus
//
//  Created by Felix Förtsch on 07.09.24.
//

import SwiftUI

struct ActiveWorkoutSession: View {
		@Environment(\.dismiss) private var dismiss
		
		@State var workout: Workout
		
		@State var workoutSession: WorkoutSession?
		@State var currentExercise: Int = 0
		
		let startDate = Date() - 100
		
		@State private var currentTime = Date()
		let timer = Timer.publish(every: 1, on: .main, in: .common).autoconnect()
		
    var body: some View {
						Button("Close") { dismiss() }
						Text("\(workout.name)")
						Text("Elapsed Time: \(elapsedTimeText(startDate: startDate))")
								.onReceive(timer) { time in
										currentTime = time // Updates the current time every second
								}
						List {
								// TODO: Unwrap Sets
								ForEach(workout.workoutItems) { workoutItem in
										HStack {
												Text("\(workoutItem.reps)")
												Text("\(workoutItem.name)")
										}
								}
						}
						.listStyle(.plain)
						Image(systemName: "play.circle.fill")
								.resizable()
								.frame(width: 100, height: 100)
								.font(.title)
								.symbolRenderingMode(.palette)
								.foregroundStyle(.white, .green)

    }
		
		private func elapsedTimeText(startDate: Date) -> String {
				let elapsedTime = currentTime.timeIntervalSince(startDate)
				let formatter = DateComponentsFormatter()
				formatter.allowedUnits = [.hour, .minute, .second]
				formatter.unitsStyle = .positional // For HH:mm:ss format
				return formatter.string(from: elapsedTime) ?? "00:00:00"
		}
}

#Preview {
		ActiveWorkoutSession(workout: Workout.sampleData)
}