# frozen_string_literal: true

#-- copyright
# OpenProject is an open source project management software.
# Copyright (C) the OpenProject GmbH
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License version 3.
#
# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
# Copyright (C) 2006-2013 Jean-Philippe Lang
# Copyright (C) 2010-2013 the ChiliProject Team
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
#
# See COPYRIGHT and LICENSE files for more details.
#++

module OpenProject
  module HtmlDiff
    extend OpenProject::TextFormatting

    module_function

    def from_markdown(markdown_from, markdown_to)
      ::HTMLDiff::DiffBuilder.new(
        format_text(markdown_from, disable_macro_expansion: true),
        format_text(markdown_to, disable_macro_expansion: true)
      ).build
       .gsub(/<ins class="diff(?:ins|mod)">(\n\r?)<\/ins>/, '\1')
       .gsub(/<del class="diff(?:del|mod)">(\n\r?)<\/del>/, '\1')
       .gsub(/^<figure class="op-uc-figure">(<figure class="table op-uc-figure_align-center op-uc-figure">)/, '\1')
    end
  end
end