Fix watch history order (#3653)

src/invidious/database/users.cr

@@ -52,7 +52,7 @@ module Invidious::Database::Users
   def mark_watched(user : User, vid : String)
     request = <<-SQL
       UPDATE users
-      SET watched = array_append(watched, $1)
+      SET watched = array_append(array_remove(watched, $1), $1)
       WHERE email = $2
     SQL
 

src/invidious/routes/watch.cr

@@ -76,7 +76,7 @@ module Invidious::Routes::Watch
     end
     env.params.query.delete_all("iv_load_policy")
 
-    if watched && preferences.watch_history && !watched.includes? id
+    if watched && preferences.watch_history
       Invidious::Database::Users.mark_watched(user.as(User), id)
     end
 
@@ -259,9 +259,7 @@ module Invidious::Routes::Watch
 
     case action
     when "action_mark_watched"
-      if !user.watched.includes? id
       Invidious::Database::Users.mark_watched(user, id)
-      end
     when "action_mark_unwatched"
       Invidious::Database::Users.mark_unwatched(user, id)
     else

src/invidious/user/imports.cr

@@ -48,7 +48,7 @@ struct Invidious::User
 
       if data["watch_history"]?
         user.watched += data["watch_history"].as_a.map(&.as_s)
-        user.watched.uniq!
+        user.watched.reverse!.uniq!.reverse!
         Invidious::Database::Users.update_watch_history(user)
       end