improved import algorithm, fixed a referer issue from the playlists page after deleting a playlist

Signed-off-by: thtmnisamnstr <gavinj1984@gmail.com>

src/invidious/user/imports.cr

@@ -30,18 +30,22 @@ struct Invidious::User
       return subscriptions
     end
 
-    def parse_playlist_export_csv(user : User, csv_content : String)
-      rows = CSV.new(csv_content, headers: true)
-      row_counter = 0
+    def parse_playlist_export_csv(user : User, raw_input : String)
       playlist = uninitialized InvidiousPlaylist
       title = uninitialized String
       description = uninitialized String
       visibility = uninitialized String
-      rows.each do |row|
-        if row_counter == 0
-          title = row[4]
-          description = row[5]
-          visibility = row[6]
+      privacy = uninitialized PlaylistPrivacy
+
+      # Split the input into head and body content
+      raw_head, raw_body = raw_input.split("\n\n", limit: 2, remove_empty: true)
+
+      # Create the playlist from the head content
+      csv_head = CSV.new(raw_head, headers: true)
+      csv_head.next
+      title = csv_head[4]
+      description = csv_head[5]
+      visibility = csv_head[6]
       
       if visibility.compare("Public", case_insensitive: true) == 0
         privacy = PlaylistPrivacy::Public
@@ -57,16 +61,13 @@ struct Invidious::User
         Invidious::Database::Playlists.update_description(playlist.id, description)
       end
 
-          row_counter += 1
-        end
-        if row_counter > 0 && row_counter < 3
-          row_counter += 1
-        end
-        if row_counter >= 3
-          if playlist
+      # Add each video to the playlist from the body content
+      CSV.each_row(raw_body) do |row|
+        if row.size >= 1
           video_id = row[0]
-            row_counter += 1
+          if playlist
             next if !video_id
+            next if video_id == "Video Id"
 
             begin
               video = get_video(video_id)

src/invidious/views/feeds/playlists.ecr

@@ -10,12 +10,12 @@
     </div>
     <div class="pure-u-1-3">
         <h3 style="text-align:center">
-            <a href="/create_playlist?referer=<%= URI.encode_www_form(referer) %>"><%= translate(locale, "Create playlist") %></a>
+            <a href="/create_playlist?referer=<%= URI.encode_www_form("/feed/playlists") %>"><%= translate(locale, "Create playlist") %></a>
         </h3>
     </div>
     <div class="pure-u-1-3">
         <h3 style="text-align:right">
-            <a href="/data_control?referer=<%= URI.encode_www_form(referer) %>">
+            <a href="/data_control?referer=<%= URI.encode_www_form("/feed/playlists") %>">
                 <%= translate(locale, "Import/export") %>
             </a>
         </h3>