auto retry loading the video before showing error

Signed-off-by: Toni Förster <toni.foerster@gmail.com>

Model/Import Export Settings/Exporters/AdvancedSettingsGroupExporter.swift

@@ -5,6 +5,7 @@ final class AdvancedSettingsGroupExporter: SettingsGroupExporter {
     override var globalJSON: JSON {
         [
             "showPlayNowInBackendContextMenu": Defaults[.showPlayNowInBackendContextMenu],
+            "videoLoadingRetryCount": Defaults[.videoLoadingRetryCount],
             "showMPVPlaybackStats": Defaults[.showMPVPlaybackStats],
             "mpvEnableLogging": Defaults[.mpvEnableLogging],
             "mpvCacheSecs": Defaults[.mpvCacheSecs],

Model/Import Export Settings/Importers/AdvancedSettingsGroupImporter.swift

@@ -9,6 +9,10 @@ struct AdvancedSettingsGroupImporter {
             Defaults[.showPlayNowInBackendContextMenu] = showPlayNowInBackendContextMenu
         }
 
+        if let videoLoadingRetryCount = json["videoLoadingRetryCount"].int {
+            Defaults[.videoLoadingRetryCount] = videoLoadingRetryCount
+        }
+
         if let showMPVPlaybackStats = json["showMPVPlaybackStats"].bool {
             Defaults[.showMPVPlaybackStats] = showMPVPlaybackStats
         }

Model/Player/PlayerModel.swift

@@ -201,6 +201,9 @@ final class PlayerModel: ObservableObject {
     var rateToRestore: Float?
     private var remoteCommandCenterConfigured = false
 
+    // Used in the PlayerModel extension in PlayerQueue
+    var retryAttempts = [String: Int]()
+
     #if os(macOS)
         var keyPressMonitor: Any?
     #endif

Model/Player/PlayerQueue.swift

@@ -359,6 +359,31 @@ extension PlayerModel {
     }
 
     private func videoLoadFailureHandler(_ error: RequestError, video: Video? = nil) {
+        guard let video else {
+            presentErrorAlert(error)
+            return
+        }
+
+        let videoID = video.videoID
+        let currentRetry = retryAttempts[videoID] ?? 0
+
+        if currentRetry < Defaults[.videoLoadingRetryCount] {
+            retryAttempts[videoID] = currentRetry + 1
+
+            logger.info("Retry attempt \(currentRetry + 1) for video \(videoID) due to error: \(error)")
+
+            DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) { [weak self] in
+                guard let self else { return }
+                self.enqueueVideo(video, play: true, prepending: true, loadDetails: true)
+            }
+            return
+        }
+
+        retryAttempts[videoID] = 0
+        presentErrorAlert(error, video: video)
+    }
+
+    private func presentErrorAlert(_ error: RequestError, video: Video? = nil) {
         var message = error.userMessage
         if let errorDictionary = error.json.dictionaryObject,
            let errorMessage = errorDictionary["message"] ?? errorDictionary["error"],