Deal with first idiotic nickname

app/models/reservation_player.rb

@@ -7,4 +7,8 @@ class ReservationPlayer < ActiveRecord::Base
 
   geocoded_by :ip
   before_save :geocode, if: :ip_changed?
+
+  def self.idiotic_name?(name)
+    name.include?("﷽")
+  end
 end

app/services/server_metric.rb

@@ -31,7 +31,8 @@ def save_player_statistics
       parser.players.each do |player|
         next unless player.relevant?
 
-        rp = ReservationPlayer.where(reservation: current_reservation, steam_uid: player.steam_uid).first_or_create(name: player.name, ip: player.ip)
+        name = sanitize_name(player.name)
+        rp = ReservationPlayer.where(reservation: current_reservation, steam_uid: player.steam_uid).first_or_create(name: name, ip: player.ip)
         PlayerStatistic.create!(reservation_player: rp,
                                 ping: player.ping,
                                 loss: player.loss,
@@ -51,4 +52,10 @@ def number_of_players
   def players_playing?
     number_of_players > 0
   end
+
+  def sanitize_name(name)
+    return "idiot" if ReservationPlayer.idiotic_name?(name)
+
+    name
+  end
 end

app/workers/update_steam_nickname_worker.rb

@@ -12,10 +12,30 @@ def perform(steam_uid)
       @steam_uid = steam_uid
       begin
         nickname = SteamCondenser::Community::SteamId.new(steam_uid.to_i).nickname
-        User.find_by(uid: steam_uid).update(nickname: nickname, name: nickname)
+        if ReservationPlayer.idiotic_name?(nickname)
+          ban_idiot(steam_uid)
+          rename_user(steam_uid)
+        else
+          User.find_by(uid: steam_uid).update(nickname: nickname, name: nickname)
+        end
       rescue SteamCondenser::Error => exception
         Rails.logger.info "Couldn't query Steam community: #{exception}"
       end
     end
   end
+
+  def idiot?(nickname)
+    nickname.include?("﷽")
+  end
+
+  def ban_idiot(steam_uid)
+    uid3 = SteamCondenser::Community::SteamId.community_id_to_steam_id3(steam_uid.to_i)
+    Server.active.each do |s|
+      s.rcon_exec "banid 0 #{uid3} kick"
+    end
+  end
+
+  def rename_user(steam_uid)
+    User.find_by_uid(steam_uid)&.update(nickname: "idiot", name: "idiot")
+  end
 end