//
//  AboutView.swift
//  Tusker
//
//  Created by Shadowfacts on 12/21/22.
//  Copyright © 2022 Shadowfacts. All rights reserved.
//

import SwiftUI

struct AboutView: View {
    private var version: String {
        let marketing = Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String
        let build = Bundle.main.infoDictionary?["CFBundleVersion"] as? String
        return "\(marketing ?? "<unknown>") (\(build ?? "<unknown>"))"
    }
    
    var body: some View {
        List {
            iconOrGame
                .frame(maxWidth: .infinity, alignment: .center)
                .listRowInsets(EdgeInsets(top: 9, leading: 0, bottom: 0, trailing: 0))
                .listRowBackground(EmptyView())
            
            Section {
                HStack {
                    Text("Version")
                    Spacer()
                    Text(version)
                        .foregroundColor(.secondary)
                }
                .contextMenu {
                    Button {
                        UIPasteboard.general.string = version
                    } label: {
                        Label("Copy", systemImage: "doc.on.doc")
                    }
                }
            }
            
            Section {
                Link("Website", destination: URL(string: "https://vaccor.space/tusker")!)
                Link("Source Code", destination: URL(string: "https://git.shadowfacts.net/shadowfacts/Tusker")!)
                Link("Issue Tracker", destination: URL(string: "https://git.shadowfacts.net/shadowfacts/Tusker/issues")!)
            }
        }
    }
    
    @ViewBuilder
    private var iconOrGame: some View {
        if #available(iOS 16.0, *) {
            FlipView {
                appIcon
            } back: {
                TTTView()
            }
        } else {
            appIcon
        }
    }
    
    private var appIcon: some View {
        VStack {
            AppIconView()
                .shadow(radius: 6, y: 3)
                .frame(width: 256, height: 256)
            
            Text("Tusker")
                .font(.title2.bold())
        }
    }
}

struct AppIconView: UIViewRepresentable {
    func makeUIView(context: Context) -> UIImageView {
        let view = UIImageView(image: UIImage(named: "AboutIcon"))
        view.contentMode = .scaleAspectFit
        view.layer.cornerRadius = 256 / 6.4
        view.layer.cornerCurve = .continuous
        view.layer.masksToBounds = true
        return view
    }
    
    func updateUIView(_ uiView: UIImageView, context: Context) {
    }
}

struct AboutView_Previews: PreviewProvider {
    static var previews: some View {
        AboutView()
    }
}