14 files changed, 33 insertions, 10 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index ca27aa3a5..4638cd6d5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,7 @@
  * Add `client.videos.resumable_upload.max_chunk_size` config option [#4857](https://github.com/Chocobozzz/PeerTube/pull/4857)
  * Add `object_storage.upload_acl` config option [#4861](https://github.com/Chocobozzz/PeerTube/pull/4861)
  * Add ability to set RTMP/RTMPS listening hostname using `rtmp.hostname`/`rtmps.hostname` and public RTMP/RTMPS hostname using `rtmp.public_hostname`/`rtmps.public_hostname`
+ * Removed `best` default trending algorithm. It is automatically used if using `hot` algorithm with a logged in user
 
 ### Docker
 
diff --git a/client/src/app/+videos/+video-watch/shared/information/video-alert.component.html b/client/src/app/+videos/+video-watch/shared/information/video-alert.component.html
index c6ffb1abd..be726c990 100644
--- a/client/src/app/+videos/+video-watch/shared/information/video-alert.component.html
+++ b/client/src/app/+videos/+video-watch/shared/information/video-alert.component.html
@@ -34,6 +34,10 @@
   This live has ended.
 </div>
 
+<div i18n class="alert alert-warning" *ngIf="noPlaylistVideoFound">
+  There are no videos available in this playlist.
+</div>
+
 <div class="alert alert-danger" *ngIf="video?.blacklisted">
   <div class="blocked-label" i18n>This video is blocked.</div>
   {{ video.blacklistedReason }}
diff --git a/client/src/app/+videos/+video-watch/shared/information/video-alert.component.ts b/client/src/app/+videos/+video-watch/shared/information/video-alert.component.ts
index 79b56705f..ba79fabc8 100644
--- a/client/src/app/+videos/+video-watch/shared/information/video-alert.component.ts
+++ b/client/src/app/+videos/+video-watch/shared/information/video-alert.component.ts
@@ -9,6 +9,7 @@ import { VideoState } from '@shared/models'
 })
 export class VideoAlertComponent {
   @Input() video: VideoDetails
+  @Input() noPlaylistVideoFound: boolean
 
   isVideoToTranscode () {
     return this.video && this.video.state.id === VideoState.TO_TRANSCODE
diff --git a/client/src/app/+videos/+video-watch/shared/playlist/video-watch-playlist.component.html b/client/src/app/+videos/+video-watch/shared/playlist/video-watch-playlist.component.html
index da81d76d1..f5dd352a3 100644
--- a/client/src/app/+videos/+video-watch/shared/playlist/video-watch-playlist.component.html
+++ b/client/src/app/+videos/+video-watch/shared/playlist/video-watch-playlist.component.html
@@ -1,5 +1,5 @@
 <div
-  *ngIf="playlist && currentPlaylistPosition" class="playlist"
+  *ngIf="playlist && (currentPlaylistPosition || noPlaylistVideos)" class="playlist"
   myInfiniteScroller [onItself]="true" (nearOfBottom)="onPlaylistVideosNearOfBottom()"
 >
   <div class="playlist-info">
diff --git a/client/src/app/+videos/+video-watch/shared/playlist/video-watch-playlist.component.ts b/client/src/app/+videos/+video-watch/shared/playlist/video-watch-playlist.component.ts
index 879d296a7..ec85db0ff 100644
--- a/client/src/app/+videos/+video-watch/shared/playlist/video-watch-playlist.component.ts
+++ b/client/src/app/+videos/+video-watch/shared/playlist/video-watch-playlist.component.ts
@@ -18,6 +18,7 @@ export class VideoWatchPlaylistComponent {
   @Input() playlist: VideoPlaylist
 
   @Output() videoFound = new EventEmitter<string>()
+  @Output() noVideoFound = new EventEmitter<void>()
 
   playlistElements: VideoPlaylistElement[] = []
   playlistPagination: ComponentPagination = {
@@ -28,10 +29,11 @@ export class VideoWatchPlaylistComponent {
 
   autoPlayNextVideoPlaylist: boolean
   autoPlayNextVideoPlaylistSwitchText = ''
+
   loopPlaylist: boolean
   loopPlaylistSwitchText = ''
-  noPlaylistVideos = false
 
+  noPlaylistVideos = false
   currentPlaylistPosition: number
 
   constructor (
@@ -100,6 +102,7 @@ export class VideoWatchPlaylistComponent {
       const firstAvailableVideo = this.playlistElements.find(e => !!e.video)
       if (!firstAvailableVideo) {
         this.noPlaylistVideos = true
+        this.noVideoFound.emit()
         return
       }
 
diff --git a/client/src/app/+videos/+video-watch/video-watch.component.html b/client/src/app/+videos/+video-watch/video-watch.component.html
index 4c15ae3d7..1ea0cf6b8 100644
--- a/client/src/app/+videos/+video-watch/video-watch.component.html
+++ b/client/src/app/+videos/+video-watch/video-watch.component.html
@@ -11,12 +11,15 @@
       <img class="placeholder-image" *ngIf="playerPlaceholderImgSrc" [src]="playerPlaceholderImgSrc" alt="Placeholder image" i18n-alt>
     </div>
 
-    <my-video-watch-playlist #videoWatchPlaylist [playlist]="playlist" (videoFound)="onPlaylistVideoFound($event)"></my-video-watch-playlist>
+    <my-video-watch-playlist
+      #videoWatchPlaylist [playlist]="playlist"
+      (noVideoFound)="onPlaylistNoVideoFound()" (videoFound)="onPlaylistVideoFound($event)"
+    ></my-video-watch-playlist>
 
     <my-plugin-placeholder pluginId="player-next"></my-plugin-placeholder>
   </div>
 
-  <my-video-alert [video]="video"></my-video-alert>
+  <my-video-alert [video]="video" [noPlaylistVideoFound]="noPlaylistVideoFound"></my-video-alert>
 
   <!-- Video information -->
   <div *ngIf="video" class="margin-content video-bottom">
diff --git a/client/src/app/+videos/+video-watch/video-watch.component.ts b/client/src/app/+videos/+video-watch/video-watch.component.ts
index 5fa31ec63..d05f08a5f 100644
--- a/client/src/app/+videos/+video-watch/video-watch.component.ts
+++ b/client/src/app/+videos/+video-watch/video-watch.component.ts
@@ -72,6 +72,7 @@ export class VideoWatchComponent implements OnInit, OnDestroy {
   playlist: VideoPlaylist = null
 
   remoteServerDown = false
+  noPlaylistVideoFound = false
 
   private nextVideoUUID = ''
   private nextVideoTitle = ''
@@ -178,6 +179,10 @@ export class VideoWatchComponent implements OnInit, OnDestroy {
     this.loadVideo(videoId)
   }
 
+  onPlaylistNoVideoFound () {
+    this.noPlaylistVideoFound = true
+  }
+
   isUserLoggedIn () {
     return this.authService.isLoggedIn()
   }
@@ -286,6 +291,8 @@ export class VideoWatchComponent implements OnInit, OnDestroy {
   private loadPlaylist (playlistId: string) {
     if (this.isSameElement(this.playlist, playlistId)) return
 
+    this.noPlaylistVideoFound = false
+
     this.playlistService.getVideoPlaylist(playlistId)
       .subscribe({
         next: playlist => {
diff --git a/client/src/app/+videos/video-list/videos-list-common-page.component.ts b/client/src/app/+videos/video-list/videos-list-common-page.component.ts
index 72c7e1ef6..d2782036b 100644
--- a/client/src/app/+videos/video-list/videos-list-common-page.component.ts
+++ b/client/src/app/+videos/video-list/videos-list-common-page.component.ts
@@ -173,6 +173,10 @@ export class VideosListCommonPageComponent implements OnInit, OnDestroy, Disable
       case 'most-liked':
         return '-likes'
 
+      // We'll automatically apply "best" sort if using "hot" sort with a logged user
+      case 'best':
+        return '-hot'
+
       default:
         return '-' + algorithm as VideoSortField
     }
diff --git a/config/default.yaml b/config/default.yaml
index c0d17decf..f7c9b620c 100644
--- a/config/default.yaml
+++ b/config/default.yaml
@@ -181,7 +181,6 @@ trending:
     interval_days: 7 # Compute trending videos for the last x days
     algorithms:
       enabled:
-        - 'best' # adaptation of Reddit's 'Best' algorithm (Hot minus History)
         - 'hot' # adaptation of Reddit's 'Hot' algorithm
         - 'most-viewed' # default, used initially by PeerTube as the trending page
         - 'most-liked'
diff --git a/config/production.yaml.example b/config/production.yaml.example
index 8fd8d805f..a36f4979b 100644
--- a/config/production.yaml.example
+++ b/config/production.yaml.example
@@ -177,7 +177,6 @@ trending:
     interval_days: 7 # Compute trending videos for the last x days
     algorithms:
       enabled:
-        - 'best' # adaptation of Reddit's 'Best' algorithm (Hot minus History)
         - 'hot' # adaptation of Reddit's 'Hot' algorithm
         - 'most-viewed' # default, used initially by PeerTube as the trending page
         - 'most-liked'
diff --git a/server/controllers/download.ts b/server/controllers/download.ts
index 43d525f83..a270180c0 100644
--- a/server/controllers/download.ts
+++ b/server/controllers/download.ts
@@ -86,7 +86,9 @@ async function downloadVideoFile (req: express.Request, res: express.Response) {
   }
 
   await VideoPathManager.Instance.makeAvailableVideoFile(videoFile.withVideoOrPlaylist(video), path => {
-    const filename = `${video.name}-${videoFile.resolution}p${videoFile.extname}`
+    // Express uses basename on filename parameter
+    const videoName = video.name.replace(/[/\\]/g, '_')
+    const filename = `${videoName}-${videoFile.resolution}p${videoFile.extname}`
 
     return res.download(path, filename)
   })
diff --git a/server/tests/api/check-params/config.ts b/server/tests/api/check-params/config.ts
index c8dbbf797..99fb24a5b 100644
--- a/server/tests/api/check-params/config.ts
+++ b/server/tests/api/check-params/config.ts
@@ -165,7 +165,7 @@ describe('Test config API validators', function () {
     trending: {
       videos: {
         algorithms: {
-          enabled: [ 'best', 'hot', 'most-viewed', 'most-liked' ],
+          enabled: [ 'hot', 'most-viewed', 'most-liked' ],
           default: 'most-viewed'
         }
       }
diff --git a/server/tests/api/server/config.ts b/server/tests/api/server/config.ts
index f31012a5c..0f2fb5493 100644
--- a/server/tests/api/server/config.ts
+++ b/server/tests/api/server/config.ts
@@ -367,7 +367,7 @@ const newCustomConfig: CustomConfig = {
   trending: {
     videos: {
       algorithms: {
-        enabled: [ 'best', 'hot', 'most-viewed', 'most-liked' ],
+        enabled: [ 'hot', 'most-viewed', 'most-liked' ],
         default: 'hot'
       }
     }
diff --git a/shared/server-commands/server/config-command.ts b/shared/server-commands/server/config-command.ts
index ed4961bc3..5320dead4 100644
--- a/shared/server-commands/server/config-command.ts
+++ b/shared/server-commands/server/config-command.ts
@@ -356,7 +356,7 @@ export class ConfigCommand extends AbstractCommand {
       trending: {
         videos: {
           algorithms: {
-            enabled: [ 'best', 'hot', 'most-viewed', 'most-liked' ],
+            enabled: [ 'hot', 'most-viewed', 'most-liked' ],
             default: 'hot'
           }
         }