import SwiftUI

#if os(macOS)
import AppKit

typealias PlatformImage = NSImage
typealias PlatformColor = NSColor
typealias PlatformFont = NSFont
typealias PlatformView = NSView

let touchOnly = false
let deviceKind = "Mac"

extension Image {
    init(platformImage: PlatformImage) {
        self.init(nsImage: platformImage)
    }
}

extension PlatformColor {
    static func dynamic(light: NSColor, dark: NSColor) -> NSColor {
        NSColor(name: nil) { appearance in
            appearance.bestMatch(from: [.aqua, .darkAqua]) == .darkAqua ? dark : light
        }
    }
}

@MainActor
func copyToClipboard(_ text: String) {
    NSPasteboard.general.clearContents()
    NSPasteboard.general.setString(text, forType: .string)
}

@MainActor
func copyToClipboard(_ image: PlatformImage) {
    NSPasteboard.general.clearContents()
    NSPasteboard.general.writeObjects([image])
}

func platformImage(_ cg: CGImage) -> PlatformImage {
    NSImage(cgImage: cg, size: NSSize(width: cg.width / 2, height: cg.height / 2))
}

@MainActor
func openExternal(_ url: URL) {
    NSWorkspace.shared.open(url)
}

let appBecameActive = NSApplication.didBecomeActiveNotification

@MainActor
func appIsActive() -> Bool {
    NSApp.isActive
}

#else
import UIKit

typealias PlatformImage = UIImage
typealias PlatformColor = UIColor
typealias PlatformFont = UIFont
typealias PlatformView = UIView

let touchOnly = true
let deviceKind = "iPhone"

struct CheckToggleStyle: ToggleStyle {
    func makeBody(configuration: Configuration) -> some View {
        Button {
            configuration.isOn.toggle()
        } label: {
            HStack(spacing: 8) {
                Image(systemName: configuration.isOn ? "checkmark.square.fill" : "square")
                    .foregroundStyle(configuration.isOn ? Palette.accent : Palette.muted)
                configuration.label
                    .foregroundStyle(Palette.text)
            }
            .contentShape(Rectangle())
        }
        .buttonStyle(.plain)
    }
}

extension ToggleStyle where Self == CheckToggleStyle {
    static var checkbox: CheckToggleStyle {
        CheckToggleStyle()
    }
}

extension Image {
    init(platformImage: PlatformImage) {
        self.init(uiImage: platformImage)
    }
}

extension PlatformColor {
    static func dynamic(light: UIColor, dark: UIColor) -> UIColor {
        UIColor { traits in
            traits.userInterfaceStyle == .dark ? dark : light
        }
    }
}

@MainActor
func copyToClipboard(_ text: String) {
    UIPasteboard.general.string = text
}

@MainActor
func copyToClipboard(_ image: PlatformImage) {
    UIPasteboard.general.image = image
}

func platformImage(_ cg: CGImage) -> PlatformImage {
    UIImage(cgImage: cg, scale: 2, orientation: .up)
}

@MainActor
func openExternal(_ url: URL) {
    UIApplication.shared.open(url)
}

let appBecameActive = UIApplication.didBecomeActiveNotification

@MainActor
func appIsActive() -> Bool {
    UIApplication.shared.applicationState == .active
}
#endif