Debouncing - Working

    process(clk, rst)
        variable counter : unsigned(31 downto 0) := (others => '0');
        variable flipflops : std_logic_vector(1 downto 0) := (others => '0');
    begin
        if(rst = '1') then
            counter := (others => '0');
            flipflops := (others => '0');
            leds_counter <= (others => '0');
        elsif(rising_edge(clk)) then
            flipflops(1) := flipflops(0);
            flipflops(0) := button;

            if(flipflops(1) = '1' and flipflops(0) = '1') then
                counter := to_unsigned(100_000_000 / 20, counter'length);
            elsif(counter > 0) then
                counter := counter - 1;
            else
                if(button = '1') then
                    leds_counter <= leds_counter + 1;
                end if;
            end if;
        end if;
    end process;