defmodule Support.ErrorPlugin do
  def as_html(lines) do
    if Enum.all?(lines, &correct?/1) do
      "<strong>correct</strong>\n"
    else
      {for line <- lines, correct?(line) do
         "<strong>correct</strong>"
       end,
       for line <- lines, !correct?(line) do
         make_error(line)
       end}
    end
  end

  defp correct?({line, _}) do
    line == "correct"
  end

  defp make_error({_, lnb}) do
    {:error, lnb, "that is incorrect"}
  end
end

# SPDX-License-Identifier: Apache-2.0
