SwiftUI credit card flip animation

CreditCardFlip.swift

//
//  CreditCardFlip.swift
//  CreditCardFlip
//
//  Created by Inncoder on 05/06/2020.
//  Copyright © 2020 Inncoder AS. All rights reserved.
//

struct CreditCardFlip: View {
        @State private var animating = false
        @State private var isImageFlipped = false
        @State private var rotation: Double = 0
        
        var body: some View {
            ZStack {
                if isImageFlipped {
                    Image("credit-card-back")
                        .scaleEffect(0.6)
                        .rotation3DEffect(.degrees(180), axis: (x: 0, y: 1, z: 0))
                } else {
                    Image("credit-card-front")
                        .scaleEffect(0.6)
                }
            }
            .rotation3DEffect(.degrees(rotation), axis: (x: 0, y: 1, z: 0))
            .onTapGesture {
                withAnimation(Animation.linear(duration: 0.3)) {
                    self.animating.toggle()
                }
            }
            .onAppear {
                Timer.scheduledTimer(withTimeInterval: 0.01, repeats: true) { _ in
                    if self.animating {
                        withAnimation(Animation.linear(duration: 0.01)) {
                            self.rotation += 3
                        }
                        if self.rotation == 90 || self.rotation == 270 {
                            self.isImageFlipped.toggle()
                        } else if self.rotation == 360 || self.rotation == 180 {
                            self.animating = false
                        }
                        
                        if self.rotation == 360 {
                            self.rotation = 0
                        }
                    }
                }
            }
        }
    }