fix: image may block to fetch issue

Mastodon/Diffiable/Section/StatusSection.swift

@@ -675,9 +675,7 @@ extension StatusSection {
                 case .success:
                     statusItemAttribute.isImageLoaded.value = true
                 }
-            }?
-            .store(in: &cell.statusView.statusMosaicImageViewContainer.imageTasks)
-
+            }
 
             imageView.accessibilityLabel = meta.altText
 

Mastodon/Scene/Share/View/Container/MosaicImageViewContainer.swift

@@ -24,8 +24,6 @@ final class MosaicImageViewContainer: UIView {
 
     weak var delegate: MosaicImageViewContainerDelegate?
 
-    var imageTasks = Set<ImageTask?>()
-    
     let container = UIStackView()
     private(set) lazy var imageViews: [UIImageView] = {
         (0..<4).map { _ -> UIImageView in
@@ -95,9 +93,14 @@ extension MosaicImageViewContainer {
 
 extension MosaicImageViewContainer {
 
+    func resetImageTask() {
+        imageViews.forEach { imageView in
+            Nuke.cancelRequest(for: imageView)
+        }
+    }
+    
     func reset() {
-        imageTasks.forEach { $0?.cancel() }
-        imageTasks.removeAll()
+        resetImageTask()
         
         container.arrangedSubviews.forEach { subview in
             container.removeArrangedSubview(subview)

Mastodon/Scene/Share/View/TableviewCell/StatusTableViewCell.swift

@@ -74,7 +74,7 @@ final class StatusTableViewCell: UITableViewCell, StatusCell {
     override func prepareForReuse() {
         super.prepareForReuse()
         selectionStyle = .default
-        statusView.statusMosaicImageViewContainer.reset()
+        statusView.statusMosaicImageViewContainer.resetImageTask()
         statusView.contentMetaText.textView.isSelectable = false
         statusView.updateContentWarningDisplay(isHidden: true, animated: false)
         statusView.statusMosaicImageViewContainer.contentWarningOverlayView.isUserInteractionEnabled = true

Mastodon/Service/APIService/APIService.swift

@@ -13,6 +13,7 @@ import CoreDataStack
 import MastodonSDK
 import AlamofireImage
 import AlamofireNetworkActivityIndicator
+import Nuke
 
 final class APIService {
         
@@ -35,6 +36,10 @@ final class APIService {
         // setup cache. 10MB RAM + 50MB Disk
         URLCache.shared = URLCache(memoryCapacity: 10 * 1024 * 1024, diskCapacity: 50 * 1024 * 1024, diskPath: nil)
 
+        // setup Nuke cache
+        // using LRU disk cache
+        ImagePipeline.shared = ImagePipeline(configuration: .withDataCache)
+        
         // enable network activity manager for AlamofireImage
         NetworkActivityIndicatorManager.shared.isEnabled = true
         NetworkActivityIndicatorManager.shared.startDelay = 0.2