//
  //  ImageCell.swift
  //  ALImagePickerViewController
  //
  //  Created by Alex Littlejohn on 2015/06/09.
  //  Copyright (c) 2015 zero. All rights reserved.
  //
  
  import UIKit
  import Photos
  
  class ImageCell: UICollectionViewCell {
      
      let imageView : UIImageView = {
          let imageView = UIImageView()
          imageView.contentMode = .scaleAspectFill
          imageView.layer.masksToBounds = true
          imageView.image = UIImage(named: "placeholder",
                                    in: CameraGlobals.shared.bundle,
                                    compatibleWith: nil)
          return imageView
      }()
  
      override init(frame: CGRect) {
          super.init(frame: frame)
          contentView.addSubview(imageView)
      }
      
      required init?(coder aDecoder: NSCoder) {
          super.init(coder: aDecoder)
      }
      
      override func layoutSubviews() {
          super.layoutSubviews()
          imageView.frame = bounds
      }
      
      override func prepareForReuse() {
          super.prepareForReuse()
          imageView.image = UIImage(named: "placeholder",
                                    in: CameraGlobals.shared.bundle,
                                    compatibleWith: nil)
      }
      
      func configureWithModel(_ model: PHAsset) {
          
          if tag != 0 {
              PHImageManager.default().cancelImageRequest(PHImageRequestID(tag))
          }
          
          tag = Int(PHImageManager.default().requestImage(for: model, targetSize: contentView.bounds.size, contentMode: .aspectFill, options: nil) { image, info in
              self.imageView.image = image
          })
      }
  }