# encoding: utf-8
# - Name: SiSU
#
#   - Description: documents, structuring, processing, publishing, search
#     html
#
#   - 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_FormatShared
  require_relative 'html_parts'                         # html_parts.rb
  class CSS_Format
    require_relative 'se_hub_particulars'               # se_hub_particulars.rb
    include SiSU_Parts_HTML
    @@fns=nil
    def initialize(md,t_o)
      @md,@t_o=md,t_o
      @txt=@t_o.obj
      @id=@ocn=@t_o.ocn if defined? @t_o.ocn
      @lv=@t_o.lv.to_s if @t_o.is==:heading
      if @md.fns != @@fns
        @@fns,@@hname=@md.fns,''
      end
      @hname=if defined? @t_o.name \
      and not @t_o.name.to_s.empty?
        @@hname=@t_o.name
      else @@hname
      end
      @tab="\t"
      @@tablehead,@@tablefoot=[],[]
      @env=SiSU_Env::InfoEnv.new(@md.fns)
      @base_url="#{@env.url.root}/#{@md.fnb}/#{@hname}.html"
    end
    def urls(data)
      @words=[]
      map_nametags=SiSU_Particulars::CombinedSingleton.instance.get_map_nametags(@md).nametags_map
      data.each do |word|
        @words << if word=~/#{Mx[:lnk_o]}(.+?)#{Mx[:lnk_c]}(#{Mx[:url_o]}\S+?#{Mx[:url_c]}|#{Mx[:rel_o]}\S+?#{Mx[:rel_c]}|image)/
          if word =~/#{Mx[:lnk_o]}.+?#{Mx[:lnk_c]}#{Mx[:url_o]}\S+?#{Mx[:url_c]}/
            m,u=/#{Mx[:lnk_o]}(.+?)#{Mx[:lnk_c]}#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/.match(word).captures
          elsif word =~/#{Mx[:lnk_o]}.+?#{Mx[:lnk_c]}#{Mx[:rel_o]}\S+?#{Mx[:rel_c]}/
            m,u=/#{Mx[:lnk_o]}(.+?)#{Mx[:lnk_c]}#{Mx[:rel_o]}(\S+?)#{Mx[:rel_c]}/.match(word).captures
          elsif word =~/#{Mx[:lnk_o]}.+?#{Mx[:lnk_c]}image/
            m,u=/#{Mx[:lnk_o]}(.+?)#{Mx[:lnk_c]}(image)/.match(word).captures
          end
          word=case m
          when /\.png|\.jpg|\.gif|c=|\d+x\d+/
            w,h=/(\d+)x(\d+)/.match(m).captures if m =~/\d+x\d+/
            w=%{width="#{w}"} if w
            h=%{height="#{h}"} if h
            c=m[/"(.+?)"/m,1]
            caption=%{<br><p class="caption">#{c}</p>} if c
            png=m.scan(/\S+/)[0]
            ins=if u \
            and u.strip !~/^image$/
              %{<a href="#{u}">[#{png}]</a>#{caption}}
            else %{[#{png}] #{caption}}
            end
            word=word.gsub(/#{Mx[:lnk_o]}.+?#{Mx[:lnk_c]}(#{Mx[:url_o]}\S+?#{Mx[:url_c]}|image)/,ins)
          else
            u=case u
            when /^https?:\/\//
              u
            when /^:/
              u=u.gsub(/^:/,'')
              "#{@env.url.root}/#{u}"
            when /^\.\.\// # can remove
              u=u.gsub(/^\.\.\//,'')
              "#{@env.url.root}/#{u}"
            else
              if not map_nametags[u].nil?
                @env.url.root + '/' \
                + @md.fnb + '/' \
                + map_nametags[u][:segname] \
                + Sfx[:html] \
                + '#' + u
              else ''
              end
            end
            link=m[/(.+)/m]
            png=m.scan(/\S+/)[0].strip
            link=link.strip
            ins=%{<a href="#{u}">#{link}</a>}
            word=word.gsub(/#{Mx[:lnk_o]}.+?#{Mx[:lnk_c]}#{Mx[:url_o]}\S+?#{Mx[:url_c]}/,ins).
              gsub(/#{Mx[:lnk_o]}.+?#{Mx[:lnk_c]}#{Mx[:rel_o]}\S+?#{Mx[:rel_c]}/,ins)
            word
          end
          word
        else word
        end
        word
      end
      @words=@words.join(' ')
    end
    def markup_generic(s)
      s=s.gsub(/#{Mx[:fa_bold_o]}(.+?)#{Mx[:fa_bold_c]}/,'<b>\1</b>').
        gsub(/#{Mx[:fa_italics_o]}(.+?)#{Mx[:fa_italics_c]}/,'<i>\1</i>').
        gsub(/#{Mx[:fa_underscore_o]}(.+?)#{Mx[:fa_underscore_c]}/,'<u>\1</u>').
        gsub(/#{Mx[:fa_cite_o]}(.+?)#{Mx[:fa_cite_c]}/,'"\1"').
        gsub(/#{Mx[:fa_insert_o]}(.+?)#{Mx[:fa_insert_c]}/,'+{\1}+').
        gsub(/#{Mx[:fa_strike_o]}(.+?)#{Mx[:fa_strke_c]}/,'-{\1}-').
        gsub(/#{Mx[:fa_superscript_o]}(.+?)#{Mx[:fa_superscript_c]}/,'<sup>\1</sup>').
        gsub(/#{Mx[:fa_subscript_o]}(.+?)#{Mx[:fa_subscript_c]}/,'<sub>\1</sub>').
        gsub(/#{Mx[:fa_monospace_o]}(.+?)#{Mx[:fa_monospace_c]}/,'<tt>\1</tt>'). # tt, kbd
        gsub(/#{Mx[:gl_o]}#(?:126|152)#{Mx[:gl_c]}/i,'~')
    end
    def markup_object(t_o)
      s=t_o.obj
      s=if t_o.is !=:code
        s=markup_generic(s)
        if s =~/#{Mx[:lnk_o]}.+?#{Mx[:lnk_c]}(?:#{Mx[:url_o]}\S+?#{Mx[:url_c]}|#{Mx[:rel_o]}\S+?#{Mx[:rel_c]}|image)/
          wm=s.scan(/#{Mx[:lnk_o]}.+?#{Mx[:lnk_c]}(?:#{Mx[:url_o]}\S+?#{Mx[:url_c]}|#{Mx[:rel_o]}\S+?#{Mx[:rel_c]}|image)|\S+/)
          words=urls(wm)
          s=s.gsub(/.+/m,words)
        end
        s.gsub(/#{Mx[:gl_o]}(#[0-9]{3})#{Mx[:gl_c]}/u,'&\1;').
          gsub(/#{Mx[:gl_o]}#([a-z]{2,4})#{Mx[:gl_c]}/u,'&\1;').
          gsub(/#{Mx[:url_o]}[_\\](\S+?)#{Mx[:url_c]}/,'<a href="\1" target="_top">\1</a>'). #http ftp matches escaped, no decoration
          gsub(/(#{Mx[:lnk_c]})#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,'\1<a href="\2" target="_top">\2</a>'). #special case \{ e.g. \}http://url
          gsub(/(^|#{Mx[:gl_c]}|\s)#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,%{\\1#{the_url_decoration.xml_open}<a href="\\2" target="_top">\\2</a>#{the_url_decoration.xml_close}\\3}) #http ftp matches with decoration
      else
        s.gsub(/</m,'&lt;').
          gsub(/>/m,'&gt;')
      end
      s
    end
    def markup_note(s)
      s=markup_generic(s)
      if s =~/#{Mx[:lnk_o]}.+?#{Mx[:lnk_c]}(#{Mx[:url_o]}\S+?#{Mx[:url_c]}|#{Mx[:rel_o]}\S+?#{Mx[:rel_c]}|image)/
        wm=s.scan(/#{Mx[:lnk_o]}.+?#{Mx[:lnk_c]}(?:#{Mx[:url_o]}\S+?#{Mx[:url_c]}|#{Mx[:rel_o]}\S+?#{Mx[:rel_c]}|image)|\S+/)
        words=urls(wm)
        s=s.gsub(/.+/m,words)
      end
      s=s.gsub(/#{Mx[:gl_o]}(#[0-9]{3})#{Mx[:gl_c]}/u,'&\1;').
        gsub(/#{Mx[:gl_o]}#([a-z]{2,4})#{Mx[:gl_c]}/u,'&\1;').
        gsub(/#{Mx[:url_o]}_(\S+?)#{Mx[:url_c]}/,'<a href="\1" target="_top">\1</a>\2'). #http ftp matches escaped, no decoration
        gsub(/(#{Mx[:lnk_c]})#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,'\1<a href="\2" target="_top">\2</a>'). #special case \{ e.g. \}http://url
        gsub(/#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,%{#{the_url_decoration.xml_open}<a href="\\1" target="_top">\\1</a>#{the_url_decoration.xml_close}}) #http ftp matches with decoration
    end
    def paragraph
      %{<p class="h#{@lv}" type="substantive" header="#{@hname}">#{@txt}</p>\n} # << "\n"
    end
    def endnote(nr,en) #used only by db
      txt=markup_note(en)
      <<GSUB
<p class="endnote" name="note_#{nr}" from="#{@t_o.ocn}">
<a href="#{@base_url}#-#{nr}" name="_#{nr}">#{nr}.</a> <note>#{txt}</note>
</p>
GSUB
    end
    def tag_header(h)
      %{<p class="#{h[:class]}" type="#{h[:type]}" header="#{h[:header]}">#{h[:txt]}</a></p>\n} # << "\n"
    end
    def tag_para(h)
      %{<p class="#{h[:class]}" type="#{h[:type]}">#{h[:txt]}</a></p>\n}  << "\n"
    end
    def lev_toc_hname
      %{<p class="toc#{@lv}" header="#{@hname}"><a href="##{@ocn}">#{@txt}</a></p>\n}  #<< "\n"
    end
    def lev_toc
      h={ txt: txt, class: "toc#{@lv}", type: 'toc' }
      tag_para(h)
    end
    def lev4_plus
      txt=markup_object(@t_o)
      h={ txt: txt, class: "h#{@lv}", type: 'substantive', id: @ocn, header: @hname }
      tag_header(h)
    end
    def lev4_minus
      txt=markup_object(@t_o)
      h={ txt: txt, class: "h#{@t_o.ln}", type: 'substantive', id: @ocn }
      tag_para(h)
    end
    def norm_comment
      h={ txt: @t_o.obj, class: 'norm', type: 'comment' }
      tag_para(h)
    end
    def norm
      txt=markup_object(@t_o)
      h={ txt: txt, class: 'norm', type: 'substantive', id: @ocn }
      tag_para(h)
    end
    def code
      txt=markup_object(@t_o)
      h={ txt: "<tt>#{txt}</tt>", class: 'code', type: 'substantive', id: @ocn }
      tag_para(h)
    end
    def indent(t)
      txt=markup_object(@t_o)
      h={ txt: txt, class: "indent#{t}", type: 'substantive', id: @ocn }
      tag_para(h)
    end
    def hang_indent(f,t)
      txt=markup_object(@t_o)
      h={ txt: txt, class: "hang#{f}indent#{t}", type: 'substantive', id: @ocn }
      #h={ txt: txt, class: "h#{f}i#{t}", type: 'substantive', id: @ocn }
      tag_para(h)
    end
    def para_table
      %{<p class="norm" align="left"><font #{the_font.set_small} #{the_font.set_color} #{the_font.set_face}>}
    end
    def ocn
      %{<label class="ocn">#{@ocn}</label>} << "\n"
    end
    def html_table # get rid of use html_table
      @new_content=[]
      @txt.split(/\n/).each do |parablock|
        m=parablock[/<!f(.+?)!>/,1]
        @@tablefoot << m if m
        parablock=parablock.gsub(/<!f.+?!>/,'')
        @@tablehead=1 if parablock =~/#{Mx[:gr_o]}Th#{Mx[:tc_p]}/u
        parablock=parablock.gsub(/#{Mx[:gr_o]}Th?#{Mx[:tc_p]}.+?#{Mx[:tc_p]}~(\d+)#{Mx[:gr_c]}/,
          %{<table summary="normal text css" width="100%" border="0" cellpadding="2" align="center">})
        if parablock =~/#{Mx[:gr_o]}TZ#{Mx[:gr_c]}/
          tablefoot=[]
          @@tablefoot.each {|x| tablefoot << %{<p align="center"><font size=2><i>#{x}</i></font></p>\n}}
          @@tablefoot=[]
          parablock=parablock.gsub(/#{Mx[:gr_o]}TZ#{Mx[:gr_c]}/,
            %{#{the_table_close}\n}) # +
        end
        if @@tablehead==1
          if parablock =~/#{Mx[:tc_p]}#{Mx[:tc_p]}/u
            parablock=parablock.gsub(/#{Mx[:tc_o]}#{Mx[:tc_p]}#{Mx[:tc_p]}(\d+?)#{Mx[:tc_p]}/u,
                %{\n<tr>} +
                %{\n<td width="\\1%" valign="top">} +
                %{#{para_table}<b>}).
              gsub(/#{Mx[:tc_p]}#{Mx[:tc_p]}(\d+?)#{Mx[:tc_p]}/u,
                %{</b></td><td width="\\1%" valign="top">} +
                %{#{para_table}<b>}).
              gsub(/#{Mx[:tc_c]}/, '</b></td></tr>')
            @@tablehead=0
          end
          parablock
        else
          parablock=parablock.gsub(/#{Mx[:tc_o]}#{Mx[:tc_p]}#{Mx[:tc_p]}(\d+?)#{Mx[:tc_p]}/u,
              %{\n<tr>} +
              %{\n<td width="\\1%" valign="top">} +
              %{#{para_table}}).
            gsub(/#{Mx[:tc_p]}#{Mx[:tc_p]}(\d+?)#{Mx[:tc_p]}/u,
              %{</td><td width="\\1%" valign="top">} +
              %{#{para_table}}).
            gsub(/#{Mx[:tc_c]}/, '</td></tr>')
          parablock
        end
        @new_content << parablock
      end
      @new_content.join
    end
  end
  class CSS_FormatGeneric #does CSS_Format in one definition, needs to be told about attrib, despite brevity of generic, easier to see structure with CSS_Format
    def initialize(attrib='',txt='',id=nil,ocnd=nil,ocns=nil,lv='',hname=nil)
      @tab="\t"
      @attrib=attrib
      @txt=txt
      @lv=lv.to_s
      @hname=hname.to_s
      @id=@ocn=id
    end
    def paragraph
      attrib=%{class="#{@attrib}" }
      if @ocn
        id=%{id="#{Mx[:ocn_id_char]}#{@ocn}" }
        type=%{type="substantive" }
      else
        id=''
        type=%{type="comment" }
      end
      header=%{header="#{@hname}" } if @hname
      %{<p #{attrib}#{type}#{header}>#{@txt}</p>\n} #<< "\n"
    end
    def para
      paragraph
    end
  end
end
__END__