/*
   * ToastView.swift
   *
   *            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
   *                    Version 2, December 2004
   *
   * Copyright (C) 2013-2015 Su Yeol Jeon
   *
   * Everyone is permitted to copy and distribute verbatim or modified
   * copies of this license document, and changing it is allowed as long
   * as the name is changed.
   *
   *            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
   *   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
   *
   *  0. You just DO WHAT THE FUCK YOU WANT TO.
   *
   */
  
  import UIKit
  
  open class ToastView: UIView {
  
    // MARK: Properties
  
    open var text: String? {
      get { return self.textLabel.text }
      set { self.textLabel.text = newValue }
    }
  
  
    // MARK: Appearance
  
    /// The background view's color.
    override open dynamic var backgroundColor: UIColor? {
      get { return self.backgroundView.backgroundColor }
      set { self.backgroundView.backgroundColor = newValue }
    }
  
    /// The background view's corner radius.
    open dynamic var cornerRadius: CGFloat {
      get { return self.backgroundView.layer.cornerRadius }
      set { self.backgroundView.layer.cornerRadius = newValue }
    }
  
    /// The inset of the text label.
    open dynamic var textInsets = UIEdgeInsets(top: 6, left: 10, bottom: 6, right: 10)
  
    /// The color of the text label's text.
    open dynamic var textColor: UIColor? {
      get { return self.textLabel.textColor }
      set { self.textLabel.textColor = newValue }
    }
  
    /// The font of the text label.
    open dynamic var font: UIFont? {
      get { return self.textLabel.font }
      set { self.textLabel.font = newValue }
    }
  
    /// The bottom offset from the screen's bottom in portrait mode.
    open dynamic var bottomOffsetPortrait: CGFloat = {
      switch UIDevice.current.userInterfaceIdiom {
      case .unspecified: return 30
      case .phone: return 30
      case .pad: return 60
      case .tv: return 90
      case .carPlay: return 30
      }
    }()
  
    /// The bottom offset from the screen's bottom in landscape mode.
    open dynamic var bottomOffsetLandscape: CGFloat = {
      switch UIDevice.current.userInterfaceIdiom {
      case .unspecified: return 20
      case .phone: return 20
      case .pad: return 40
      case .tv: return 60
      case .carPlay: return 20
      }
    }()
  
  
    // MARK: UI
  
    private let backgroundView: UIView = {
      let `self` = UIView()
      self.backgroundColor = UIColor(white: 0, alpha: 0.7)
      self.layer.cornerRadius = 5
      self.clipsToBounds = true
      return self
    }()
    private let textLabel: UILabel = {
      let `self` = UILabel()
      self.textColor = .white
      self.backgroundColor = .clear
      self.font = {
        switch UIDevice.current.userInterfaceIdiom {
        case .unspecified: return .systemFont(ofSize: 12)
        case .phone: return .systemFont(ofSize: 12)
        case .pad: return .systemFont(ofSize: 16)
        case .tv: return .systemFont(ofSize: 20)
        case .carPlay: return .systemFont(ofSize: 12)
        }
      }()
      self.numberOfLines = 0
      self.textAlignment = .center
      return self
    }()
  
  
    // MARK: Initializing
  
    public init() {
      super.init(frame: .zero)
      self.isUserInteractionEnabled = false
      self.addSubview(self.backgroundView)
      self.addSubview(self.textLabel)
    }
  
    required convenience public init?(coder aDecoder: NSCoder) {
      self.init()
    }
  
  
    // MARK: Layout
  
    override open func layoutSubviews() {
      super.layoutSubviews()
      let containerSize = ToastWindow.shared.frame.size
      let constraintSize = CGSize(
        width: containerSize.width * (280.0 / 320.0),
        height: CGFloat.greatestFiniteMagnitude
      )
      let textLabelSize = self.textLabel.sizeThatFits(constraintSize)
      self.textLabel.frame = CGRect(
        x: self.textInsets.left,
        y: self.textInsets.top,
        width: textLabelSize.width,
        height: textLabelSize.height
      )
      self.backgroundView.frame = CGRect(
        x: 0,
        y: 0,
        width: self.textLabel.frame.size.width + self.textInsets.left + self.textInsets.right,
        height: self.textLabel.frame.size.height + self.textInsets.top + self.textInsets.bottom
      )
  
      var x: CGFloat
      var y: CGFloat
      var width: CGFloat
      var height: CGFloat
  
      let orientation = UIApplication.shared.statusBarOrientation
      if orientation.isPortrait || !ToastWindow.shared.shouldRotateManually {
        width = containerSize.width
        height = containerSize.height
        y = self.bottomOffsetPortrait
      } else {
        width = containerSize.height
        height = containerSize.width
        y = self.bottomOffsetLandscape
      }
  
      let backgroundViewSize = self.backgroundView.frame.size
      x = (width - backgroundViewSize.width) * 0.5
      y = height - (backgroundViewSize.height + y)
      self.frame = CGRect(
        x: x,
        y: y,
        width: backgroundViewSize.width,
        height: backgroundViewSize.height
      )
    }
  
    override open func hitTest(_ point: CGPoint, with event: UIEvent!) -> UIView? {
      if let superview = self.superview {
        let pointInWindow = self.convert(point, to: superview)
        let contains = self.frame.contains(pointInWindow)
        if contains && self.isUserInteractionEnabled {
          return self
        }
      }
      return nil
    }
  
  }