//
//  MainView.swift
//  Werkout_ios
//
//  Created by Trey Tartt on 6/14/23.
//

import SwiftUI

struct WorkoutDetailView: View {
    @ObservedObject var viewModel:  WorkoutDetailViewModel
    @EnvironmentObject var bridgeModule: BridgeModule
    
    @State var selectedIdx = -1 {
        didSet {
            runItemAt(idx: selectedIdx)
        }
    }
    
    var body: some View {
        VStack {
            List() {
                ForEach(viewModel.workout.exercisesSortedByCreated_at.indices, id: \.self) { i in
                    let obj = viewModel.workout.exercisesSortedByCreated_at[i]
                    Text(obj.exercise.name ?? "")
                        .onTapGesture { selectedIdx = i }
                }
            }
            
            if let duration = bridgeModule.currentExercise?.duration {
                HStack {
                    ProgressView(value: Float(bridgeModule.timeLeft), total: Float(duration))
                    Text("\(bridgeModule.timeLeft)")
                }.padding(16)
            }
        }
        .onAppear{
            bridgeModule.timerCompleted = {
                selectedIdx += 1
            }
        }
    }
    
    func runItemAt(idx: Int) {
        if idx < viewModel.workout.exercises.count {
            let exercise = viewModel.workout.exercises[idx]
            bridgeModule.updateCurrent(exercise: exercise)
            bridgeModule.currentExerciseIdx = idx
        } else {
           workoutComplete()
        }
    }
    
    private func workoutComplete() {
        
    }
}

struct WorkoutDetailView_Previews: PreviewProvider {
    static var previews: some View {
        WorkoutDetailView(viewModel: WorkoutDetailViewModel(workout: PreviewWorkout.workout()))
    }
}