//
//  AllWorkoutsView.swift
//  Werkout_ios
//
//  Created by Trey Tartt on 6/15/23.
//

import Foundation
import SwiftUI

struct AllWorkoutsView: View {
    @State var workouts: [Workout]?
    @EnvironmentObject var bridgeModule: BridgeModule
    @State private var showWorkoutDetail = false
    @State private var selectedWorkout: Workout? {
        didSet {
            showWorkoutDetail = true
            bridgeModule.currentWorkout = self.selectedWorkout
        }
    }
    
    var body: some View {
        ZStack {
            if let workouts = workouts {
                List {
                    ForEach(workouts, id:\.name) { workout in
                        VStack {
                            Text(workout.name)
                            Text(workout.description ?? "")
                        }
                        .onTapGesture {
                            selectedItem(workout: workout)
                        }
                    }
                }
            } else {
                Text("no workouts")
            }
        }.onAppear{
            testParse()
        }
        .sheet(isPresented: $showWorkoutDetail) {
            if let selectedWorkout = selectedWorkout {
                let viewModel = WorkoutDetailViewModel(workout: selectedWorkout)
                WorkoutDetailView(viewModel: viewModel)
            }
        }
    }
    
    func selectedItem(workout: Workout) {
        selectedWorkout = PreviewWorkout.workout()
    }
    
    func testParse() {
        if let filepath = Bundle.main.path(forResource: "AllWorkouts", ofType: "json") {
            do {
                let data = try Data(NSData(contentsOfFile: filepath))
                let workout = try JSONDecoder().decode([Workout].self, from: data)
                self.workouts = workout
            } catch {
                print(error)
                fatalError()
            }
        } else {
            fatalError()
        }
    }
}