fix: change image correctly, do not set metadata in loadComics

ImageViewer/ViewController.swift

@@ -124,7 +124,7 @@ final class ViewController: UIViewController, UIGestureRecognizerDelegate {
         if let alert = pendingAlert {
             present(alert, animated: false, completion: nil)
         }
-        if !hasSetContentOffset && scrollingCollectionView != nil {
+        if !hasSetContentOffset, scrollingCollectionView != nil {
             guard let path = currentPath else { return }
             guard let state = state[path.lastPathComponent] else { return }
             let screenSize = UIScreen.main.bounds.size
@@ -289,8 +289,7 @@ final class ViewController: UIViewController, UIGestureRecognizerDelegate {
                     return
                 }
                 var byteBuffer = ByteBuffer(data: data)
-                metadata = try? getCheckedRoot(byteBuffer: &byteBuffer)
-                if metadata == nil {
+                guard let metadata: Metadata = try? getCheckedRoot(byteBuffer: &byteBuffer) else {
                     alert.message =
                         String(format: "Failed to read contents of metadata flatbuffer file: \(metadataPath))")
                     pendingAlert = alert
@@ -299,7 +298,9 @@ final class ViewController: UIViewController, UIGestureRecognizerDelegate {
                 metadataList[dir] = metadata
                 loadLocalState()
                 let volCovP = ProgressIndices(v: state[currentPath.lastPathComponent]!.progress.v, c: 0, i: 0)
-                let archivePath = getArchiveURL(volCovP.v)
+                let archivePath = currentPath
+                    .appendingPathComponent("volumes")
+                    .appendingPathComponent(metadata.volumes[volCovP.v].archive)
                 let archive: Archive!
                 do {
                     let a = try Archive(url: archivePath, accessMode: .read)
@@ -1268,22 +1269,22 @@ final class ViewController: UIViewController, UIGestureRecognizerDelegate {
 
     func changeImage(turn: PageTurn) {
         let scaling = UIView.ContentMode.scaleAspectFit
-        let progress = getProgress()
-        var newProgress = progress
+        let pProgress = getProgress()
+        var newProgress = pProgress
         newProgress = getProgressIndicesFromTurn(turn: turn, progress: newProgress)
-        if newProgress.v == progress.v, newProgress.c == progress.c, newProgress.i == progress.i {
+        if newProgress.v == pProgress.v, newProgress.c == pProgress.c, newProgress.i == pProgress.i {
             return
         }
-        aniListProgressUpdate(progress: progress, newProgress: newProgress)
         state[currentPath.lastPathComponent]!.progress = newProgress
+        aniListProgressUpdate(progress: pProgress, newProgress: newProgress)
         updateInfo()
-        let path = getImagePath(progress)
+        let path = getImagePath(newProgress)
 
         imageLoader.setActiveWindow([path])
 
         imageLoader.loadImage(
-            archiveURL: getArchiveURL(progress.v),
-            filename: getImagePath(progress),
+            archiveURL: getArchiveURL(newProgress.v),
+            filename: getImagePath(newProgress),
             scaling: scaling,
             screenSize: UIScreen.main.bounds.size
         ) { [weak self] image in