//
  //  Kingfisher.swift
  //  Kingfisher
  //
  //  Created by Wei Wang on 16/9/14.
  //
  //  Copyright (c) 2017 Wei Wang <onevcat@gmail.com>
  //
  //  Permission is hereby granted, free of charge, to any person obtaining a copy
  //  of this software and associated documentation files (the "Software"), to deal
  //  in the Software without restriction, including without limitation the rights
  //  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  //  copies of the Software, and to permit persons to whom the Software is
  //  furnished to do so, subject to the following conditions:
  //
  //  The above copyright notice and this permission notice shall be included in
  //  all copies or substantial portions of the Software.
  //
  //  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  //  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  //  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  //  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  //  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  //  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  //  THE SOFTWARE.
  
  import Foundation
  import ImageIO
  
  #if os(macOS)
      import AppKit
      public typealias Image = NSImage
      public typealias Color = NSColor
      public typealias ImageView = NSImageView
      typealias Button = NSButton
  #else
      import UIKit
      public typealias Image = UIImage
      public typealias Color = UIColor
      #if !os(watchOS)
      public typealias ImageView = UIImageView
      typealias Button = UIButton
      #endif
  #endif
  
  public final class Kingfisher<Base> {
      public let base: Base
      public init(_ base: Base) {
          self.base = base
      }
  }
  
  /**
   A type that has Kingfisher extensions.
   */
  public protocol KingfisherCompatible {
      associatedtype CompatibleType
      var kf: CompatibleType { get }
  }
  
  public extension KingfisherCompatible {
      public var kf: Kingfisher<Self> {
          get { return Kingfisher(self) }
      }
  }
  
  extension Image: KingfisherCompatible { }
  #if !os(watchOS)
  extension ImageView: KingfisherCompatible { }
  extension Button: KingfisherCompatible { }
  #endif