//
//  UIHostingView.swift
//  PayCash
//
//  Created by Saveliy Stavitsky on 2/1/22.
//  Copyright © 2022 AM. All rights reserved.
//

import Foundation
import SwiftUI
#if os(macOS)
public typealias PlatformViewType = NSView
#elseif !os(watchOS)
import UIKit
public typealias PlatformViewType = UIView
#endif

#if !os(watchOS)
@available(iOS 13.0, macOS 10.15, tvOS 13.0, *)
open class UIHostingView<Content> : PlatformViewType where Content : View {
    #if os(macOS)
    typealias HostingController = NSHostingController
    #else
    typealias HostingController = UIHostingController
    #endif
    private let hostingVC: HostingController<Content>
    public var rootView: Content {
        get { return hostingVC.rootView }
        set { hostingVC.rootView = newValue }
    }
    
    public init(rootView: Content, frame: CGRect = .zero, backgroundColor: UIColor = .clear) {
        self.hostingVC = HostingController(rootView: rootView)

        super.init(frame: frame)
        self.backgroundColor = backgroundColor
        addSubview(hostingVC.view)

        hostingVC.view.translatesAutoresizingMaskIntoConstraints = false
        hostingVC.view.backgroundColor = backgroundColor
        NSLayoutConstraint.activate([
            hostingVC.view.topAnchor.constraint(equalTo: self.topAnchor),
            hostingVC.view.bottomAnchor.constraint(equalTo: self.bottomAnchor),
            hostingVC.view.leadingAnchor.constraint(equalTo: self.leadingAnchor),
            hostingVC.view.trailingAnchor.constraint(equalTo: self.trailingAnchor)
        ])
    }
    
    @available(*, unavailable)
    required public init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

    var sizeThatFits: CGSize {
        hostingVC.view.sizeThatFits(UIScreen.main.bounds.size)
    }
}
#endif