on right click on anvil:
    execute player command "/kilofnapraw"
    cancel event

command /kilofnapraw:
    trigger:
        if player is holding any pickaxe:
            if player's level is greater than 0:
                if player has 1 diamond:
                    repair player's tool
                    remove 1 diamond from player
                    reduce the player's level progress by 1
                    send title "&7>> &6&lNaprawiles swoj kilof &7<<"
                else:
                    send "&9Aby naprawic kilof potrzebujesz jednego diamenta oraz 1 poziom expa"
            else:
                send "&9Aby naprawic kilof potrzebujesz jednego diamenta oraz 1 poziom expa"
        else:
            send title "&cW rece musisz trzymac kilof"