//
//  SimpleControllerView.swift
//  CarController
//
//  Created by Michael Pivato on 13/4/20.
//  Copyright © 2020 Michael Pivato. All rights reserved.
//

import SwiftUI

struct SimpleControllerView: View {
    @EnvironmentObject var server: ServerData
    @ObservedObject var grpcController: PiLoader = PiLoader()
    
    var body: some View {
        VStack (alignment: .trailing, spacing: 0){
            Spacer()
            HStack{
                // Move this up a bit, due to being rotated.
                Slider(value: self.$grpcController.throttle, in: 0...1){_ in
                    self.grpcController.throttle = 0.5
                }
                .offset(x: 200)
                .frame(width: 300)
                .rotationEffect(.degrees(270))
                Spacer()
                Slider(value: self.$grpcController.steering, in: 0...1){_ in
                    self.grpcController.steering = 0.5
                }
                .frame(width:300)
                .offset(x: -50, y: -200)
                .padding()
            }
            .onAppear(){
                self.grpcController.startUpdating(forPort: self.server.grpcPort, atHost: self.server.host)
            }
            .onDisappear(){
                self.grpcController.stop()
            }
        }
    }
}

struct SimpleControllerView_Previews: PreviewProvider {
    static var previews: some View {
        SimpleControllerView()
            .environmentObject(ServerData())
    }
}