/*
 * Copyright (c) 2018 Razeware LLC
 *
 * 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 UIKit
import SDWebImage
import Layout

class CardCollectionViewCell: UICollectionViewCell {
  @IBOutlet weak var imageView: UIImageView!
  private var vmChangeToken: Any?
  
  var data: CardViewModel? {
    didSet {
      self.updateAppearance()
    }
  }
  
  func updateAppearance() {
    self.imageView?.sd_setImage(with: self.data?.imageURL, placeholderImage: UIImage(named: "cardPlaceholder"))
    self.layoutNode?.setState(self.data?.cardState ?? EmptyCardState)
    self.vmChangeToken = self.data?.observeProgressChange { [weak self] changeType in
      switch changeType {
      case .changed:
        self?.layoutNode?.setState(self?.data?.cardState ?? EmptyCardState)
      case .deleted:
        self?.vmChangeToken = .none
      }
      
    }
  }
  
  override func prepareForReuse() {
    self.vmChangeToken = .none
  }
}
