//
// O2SlideImageAFSource.swift
// O2Platform
//
// Created by FancyLou on 2019年10月29日.
// Copyright © 2019 zoneland. All rights reserved.
//

import ImageSlideshow
import Alamofire
import AlamofireImage
import CocoaLumberjack

public class O2SlideImageAFSource: NSObject, InputSource {
 var url: URL
 
 public init(url: URL) {
 self.url = url
 super.init()
 }
 
 public init?(urlString: String) {
 if let validUrl = URL(string: urlString) {
 self.url = validUrl
 super.init()
 } else {
 return nil
 }
 }
 
 public func load(to imageView: UIImageView, with callback: @escaping (_ image: UIImage?) -> Void){
 
 let config = ImageDownloader.defaultURLSessionConfiguration()
 let imageDownloader = ImageDownloader(configuration: config,
 downloadPrioritization: .fifo,
 maximumActiveDownloads: 10,
 imageCache: AutoPurgingImageCache())
 //ImageFilter
 let imageFilter = AspectScaledToFillSizeFilter(size: CGSize(width: SCREEN_WIDTH, height: SCREEN_HEIGHT))
 //placeholderImage
 
 imageView.af_imageDownloader = imageDownloader
 var urlRequest = URLRequest(url: self.url)
 urlRequest.addValue("application/json", forHTTPHeaderField: "Content-Type")
 imageView.af_setImage(withURLRequest: urlRequest, placeholderImage: UIImage(named: "file_unknown_icon"), filter: imageFilter, progress: nil, progressQueue: DispatchQueue.main, imageTransition: .crossDissolve(0.1), runImageTransitionIfCached: false) { (response) in
 print(response)
 if let value = response.result.value {
 let newImage = value
 imageView.image = newImage
 callback(newImage)
 }
 }
 }
 
 
}