# coding: utf-8
=begin

 * Name: SiSU

 * Description: a framework for document structuring, publishing and search
   #___#

 * Author: Ralph Amissah

 * Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
   2007, 2008 Ralph Amissah All Rights Reserved.

 * License: GPL 3 or later:

   SiSU, a framework for document structuring, publishing and search

   Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
   2007 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/copyleft/gpl.html>

   <http://www.jus.uio.no/sisu/gpl.fsf/toc.html>
   <http://www.jus.uio.no/sisu/gpl.fsf/doc.html>
   <http://www.jus.uio.no/sisu/gpl.fsf/plain.txt>

 * SiSU uses:
   * Standard SiSU markup syntax,
   * Standard SiSU meta-markup syntax, and the
   * Standard SiSU object citation numbering and system

 * Hompages:
   <http://www.jus.uio.no/sisu>
   <http://www.sisudoc.org>

 * Download:
   <http://www.jus.uio.no/sisu/SiSU/download.html>

 * Ralph Amissah
   <ralph@amissah.com>
   <ralph.amissah@gmail.com>

 ** Description: system environment, resource control and configuration details

=end
module SiSU_book_index
  class Book_index
    def initialize(md,data,env=nil)
      @md,@data,@env=md,data,env
      @rgx_idx=/#{Mx[:idx_o]}(?:.+?)#{Mx[:idx_c]}\s*/
      #@rgx_idx=/\s*#{Mx[:idx_o]}(?:.+?)#{Mx[:idx_c]}\s*/
      @rgx_idx_ocn_init=/#{Mx[:idx_o]}(.+?)#{Mx[:idx_c]}\s*#{Mx[:id_o]}~(\d+)\S+?#{Mx[:id_c]}/
      @rgx_idx_ocn_seg=/(.+?)~(\d+)~(\S+)/
      @rgx_idx_ocn=/(.+?)~(\d+)/
      @rxp_lv1=/^#{Mx[:lv_o]}1:/
      @rxp_lv2=/^#{Mx[:lv_o]}2:/
      @rxp_lv3=/^#{Mx[:lv_o]}3:/
      @rxp_seg=/^#{Mx[:lv_o]}4:(\S+?)#{Mx[:lv_c]}/
      @rxp_to=Regexp.new("#{Mx[:id_o]}~(\\d+);(?:[oh]|[0-6]:)\\d+;\\w\\d+#{Mx[:id_c]}#{Mx[:id_o]}#@dp:#@dp#{Mx[:id_c]}|#{Mx[:id_o]}\S+?#{Mx[:id_c]}$")
      @env ||=SiSU_Env::Info_env.new(@md.fns)
    end
    def indexing_song
      @data=extract_book_index(@data)
      @data=clean_index(@data)
      @data
    end
    def extract_book_index(data)
      tuned_file=[]
      idx_array=[]
      data.each do |para|
        if para =~@rxp_seg; @seg=para[@rxp_seg,1]
        end
        idx_array << @rgx_idx_ocn_init.match(para)[0].gsub(@rgx_idx_ocn_init,"\\1~\\2~#{@seg}") if para =~ @rgx_idx_ocn_init
        tuned_file << para if para
      end
      #idx_array.each do |i|
      #  i.gsub!(@rgx_idx_ocn_init,'\1~\2')
      #end
      idx_array=construct_idx_array(idx_array) if idx_array.length > 0
      if idx_array.length > 0
        if @md.cmd.inspect =~/M/
          the_idx=construct_book_index(idx_array)
          screen_print(the_idx) if @md.cmd.inspect =~/M/
        puts "\n---"
          path="#{@env.path.output}/#{@md.fnb}"
          @file_index_all=File.open("#{path}/#{@md.fn[:book_index]}",'w')
          screen_html(the_idx)
          @file_index_all.close
        puts "\n---"
          screen_sisu_markup(the_idx)
        end
      end
      tuned_file
    end
    def construct_idx_array(idx_array)
      idx_lst=[]
      idx_array.each do |idx|
        idx_list,ocn,seg=@rgx_idx_ocn_seg.match(idx)[1..3]
        idx_lst <<=if idx_list =~/;/
          g=idx_list.scan(/[^;]+/)
          idxl=[]
          g.each do |i|
            idxl << { :rough_idx => i, :ocn => ocn, :seg => seg }
          end
          idxl
        else { :rough_idx => idx_list, :ocn => ocn, :seg => seg }
        end
      end
      idx_lst.flatten!
      idx_lst
    end
    def construct_book_index(idx_array)
      @the_idx={}
      idx_array.each do |idx|
        idx_lst=idx[:rough_idx].scan(/[^|:]+/)
        if idx_lst[0] =~/.+?\+\d+/
          use,plus=/(.+?)\+(\d+)/.match(idx_lst[0])[1,2]
        else use=idx_lst[0]
        end
        @the_idx[use]={} unless @the_idx[use] and defined? @the_idx[use]
        idx_lst.each do |i|
          i.strip!
          i,r=/(.+?)\+(\d+)/.match(i)[1,2] if i =~/.+?\+\d+/
          x=if idx_lst.length == 1 or idx_lst[0] == i
            @the_idx[use]['a1']=[] unless @the_idx[use]['a1'] and defined? @the_idx[use]['a1']
            x=if r
              @the_idx[use]['a1'] << { :ocn => idx[:ocn], :range => "#{idx[:ocn]}-#{idx[:ocn].to_i+r.to_i}", :seg => idx[:seg] }
              "#{i} #{idx[:ocn]}-#{idx[:ocn].to_i+r.to_i}"
            else
              @the_idx[use]['a1'] << { :ocn => idx[:ocn], :seg => idx[:seg] }
              "#{i} #{idx[:ocn]}"
            end
          else
            @the_idx[use]['b1']={} unless @the_idx[use]['b1'] and defined? @the_idx[use]['b1']
            @the_idx[use]['b1'][i]=[] unless @the_idx[use]['b1'][i] and defined? @the_idx[use]['b1'][i]
            x=if r
              @the_idx[use]['b1'][i] << { :ocn => idx[:ocn], :range => "#{idx[:ocn]}-#{idx[:ocn].to_i+r.to_i}", :seg => idx[:seg] }
              "#{idx_lst[0]}:#{i} #{idx[:ocn]}-#{idx[:ocn].to_i+r.to_i}"
            else
              @the_idx[use]['b1'][i] << { :ocn => idx[:ocn], :seg => idx[:seg] }
              "#{idx_lst[0]}:#{i} #{idx[:ocn]}"
            end
          end
        end
      end
      the_idx=@the_idx.sort
      #p the_idx; p '-----'
      the_idx
    end
    def screen_print(the_idx)
      the_idx.each do |i|
        i.each do |x|
          if x.class == String
            print "\n" + x + ', '
          elsif x.class == Array
            p 'array error? -->'
            print x
          elsif x.class == Hash
            if x['a1'].class == Array
              x['a1'].each do |a|
                if a[:range]
                  print a[:range] + ', '
                elsif a[:ocn]
                  print a[:ocn] + ', '
                else p 'error'
                end
              end
            end
            if x['b1']
              m=x['b1']
              m=m.sort
              m.each do |k,y|
                if k !~/a1/
                  print "\n\t" + k + ', '
                  #p y
                  y.each do |z|
                    if z[:range]
                      print z[:range] + ', '
                    elsif z[:ocn]
                      print z[:ocn] + ', '
                    else p 'error'
                    end
                  end
                end
              end
            end
          end
        end
      end
    end
    def screen_html(the_idx)
      @file_index_all << %{\n <link rel="stylesheet" href="../_sisu/css/html.css" type="text/css" />}
      the_idx.each do |i|
        i.each do |x|
          if x.class == String
            @file_index_all << %{\n<p class="book_index_lev1"><b>#{x}</b>, }
            #@file_index_all << %{<br />\n<b>#{x}</b>, }
            print %{<br />\n<b>#{x}</b>, }
          elsif x.class == Array
            p 'array error? -->'
            print x
          elsif x.class == Hash
            if x['a1'].class == Array
              x['a1'].each do |a|
                if a[:range]
                  @file_index_all << %{<a href="#{a[:seg]}.html##{a[:ocn]}">#{a[:range]}</a>, }
                  print %{<a href="#{a[:seg]}.html##{a[:ocn]}">#{a[:range]}</a>, }
                elsif a[:ocn]
                  @file_index_all << %{<a href="#{a[:seg]}.html##{a[:ocn]}">#{a[:ocn]}</a>, }
                  print %{<a href="#{a[:seg]}.html##{a[:ocn]}">#{a[:ocn]}</a>, }
                else p 'error'
                end
              end
              @file_index_all << '</p>'
            end
            if x['b1']
              m=x['b1']
              m=m.sort
              m.each do |k,y|
                if k !~/a1/
                  @file_index_all << %{\n<p class="book_index_lev2">#{k}, }
                  #@file_index_all << %{<br />\n\t#{k}, }
                  print %{<br />\n\t#{k}, }
                  #p y
                  y.each do |z|
                    if z[:range]
                      @file_index_all << %{<a href="#{z[:seg]}.html##{z[:ocn]}">#{z[:range]}</a>, }
                      print %{<a href="#{z[:seg]}.html##{z[:ocn]}">#{z[:range]}</a>, }
                    elsif z[:ocn]
                      @file_index_all << %{<a href="#{z[:seg]}.html##{z[:ocn]}">#{z[:ocn]}</a>, }
                      print %{<a href="#{z[:seg]}.html##{z[:ocn]}">#{z[:ocn]}</a>, }
                    else p 'error'
                    end
                  end
                  @file_index_all << '</p>'
                end
              end
            end
          end
        end
      end
    end
    def screen_sisu_markup(the_idx)
      the_idx.each do |i|
        i.each do |x|
          if x.class == String
            print %{\n\n#{Mx[:fa_bold_o]}#{x}#{Mx[:fa_bold_c]}, }
            #print %{\n\n#{Mx[:gr_o]}\n#{Mx[:fa_bold_o]}#{x}#{Mx[:fa_bold_c]}, }
            #print "\n" + x + ', '
          elsif x.class == Array
            p 'array error? -->'
            print x
          elsif x.class == Hash
            if x['a1'].class == Array
              x['a1'].each do |a|
                if a[:range]
                  print %{#{Mx[:lnk_o]}#{a[:range]}#{Mx[:lnk_c]}#{@env.url.root}/#{@md.fnb}/#{a[:seg]}.html##{a[:ocn]}, }
                elsif a[:ocn]
                  print %{#{Mx[:lnk_o]}#{a[:ocn]}#{Mx[:lnk_c]}#{@env.url.root}/#{@md.fnb}/#{a[:seg]}.html##{a[:ocn]}, }
                else p 'error'
                end
              end
            end
            if x['b1']
              m=x['b1']
              m=m.sort
              m.each do |k,y|
                if k !~/a1/
                  print %{\n    #{k}, }
                  #print "\n\t" + k + ', '
                  y.each do |z|
                    if z[:range]
                      print %{#{Mx[:lnk_o]}#{z[:range]}#{Mx[:lnk_c]}#{@env.url.root}/#{@md.fnb}/#{z[:seg]}.html##{z[:ocn]}, }
                    elsif z[:ocn]
                      print %{#{Mx[:lnk_o]}#{z[:ocn]}#{Mx[:lnk_c]}#{@env.url.root}/#{@md.fnb}/#{z[:seg]}.html##{z[:ocn]}, }
                    else p 'error'
                    end
                  end
                  puts " #{Mx[:id_o]}~0;0:0;u0#{Mx[:id_c]}"
                end
              end
            end
          end
        end
      end
    end
    def clean_index(data)
      tuned_file=[]
      data.each do |para|
        para.gsub!(/\n*#{@rgx_idx}/m,'')
        tuned_file << para
      end
      tuned_file
    end
  end
end
__END__