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# encoding: utf-8
# - Name: SiSU
#
#   - Description: documents, structuring, processing, publishing, search
#     harvest
#
#   - Author: Ralph Amissah
#     <ralph.amissah@gmail.com>
#
#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
#     2020, 2021, Ralph Amissah,
#     All Rights Reserved.
#
#   - License: GPL 3 or later:
#
#     SiSU, a framework for document structuring, publishing and search
#
#     Copyright (C) Ralph Amissah
#
#     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 3 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, see <http://www.gnu.org/licenses/>.
#
#     If you have Internet connection, the latest version of the GPL should be
#     available at these locations:
#     <http://www.fsf.org/licensing/licenses/gpl.html>
#     <http://www.gnu.org/licenses/gpl.html>
#
#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
#
#   - SiSU uses:
#     - Standard SiSU markup syntax,
#     - Standard SiSU meta-markup syntax, and the
#     - Standard SiSU object citation numbering and system
#
#   - Homepages:
#     <http://www.sisudoc.org>
#
#   - Git
#     <https://git.sisudoc.org/projects/>
#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
module SiSU_Harvest
  @@the_idx_topics,@@the_idx_authors={},{}
  class Source
    require_relative 'hub_options'                          # hub_options.rb
    require_relative 'html_harvest_topics'                  # html_harvest_topics.rb
    require_relative 'html_harvest_authors'                 # html_harvest_authors.rb
    require_relative 'se'                                   # se.rb
      include SiSU_Env
    def initialize(opt)
      @opt=opt
      @env=SiSU_Env::InfoEnv.new
    end
    def read
      begin
        harvest_pth=@env.path.webserv + '/' + @opt.base_stub
        FileUtils::mkdir_p(harvest_pth) unless FileTest.directory?(harvest_pth)
        cases(@opt,@env)
      rescue
      ensure
        SiSU_Env::CreateSite.new(@opt).cp_css
      end
    end
    def help
      puts <<WOK
      harvest --harvest   extracts document index metadata

WOK
    end
    def css(opt)
      require_relative 'css'                                # css.rb
      css=SiSU_Style::CSS.new
      fn_css=SiSU_Env::CSS_Default.new
      style=File.new("#{@env.path.pwd}/#{fn_css.harvest}",'w')
      style << css.harvest
      style.close
    end
    def cases(opt,env)
      case opt.selections.str.inspect
      when/--harvest/i
        css(opt) if @opt.act[:maintenance][:set]==:on
        SiSU_HarvestAuthors::Songsheet.new(opt,env).songsheet
        SiSU_HarvestTopics::Songsheet.new(opt,env).songsheet
        if @opt.act[:rsync][:set]==:on
          require_relative 'remote'                         # remote.rb
          SiSU_Remote::Put.new(opt).rsync_harvest
        end
      else
        help
      end
    end
  end
end