#!/usr/bin/env ruby

load 'languages.rb'

# this file auto-generates loaders for hyphenation patterns - to be improved

$package_name="hyph-utf8"
$ctan_url = "http://www.ctan.org/tex-archive/language/hyph-utf8/tex/generic/hyph-utf8"

# TODO - make this a bit less hard-coded
$path_tex_generic="../../../tex/generic"

$l = Languages.new
# TODO: should be singleton
languages = $l.list.sort{|a,b| a.name <=> b.name}

language_grouping = {
	'norwegian' => ['nb', 'nn'],
	'german' => ['de-1901', 'de-1996','de-ch-1901'],
	'mongolian' => ['mn-cyrl', 'mn-cyrl-x-2a'],
	'greek' => ['el-monoton', 'el-polyton'],
	'ancientgreek' => ['grc', 'grc-x-ibycus'],
	'chinese' => ['zh-latn'],
	# TODO - until someone tells what to do
	#'serbian' => ['sr-latn', 'sr-cyrl'],
	'serbian' => ['sr-latn'],
}

language_used_in_group = Hash.new
language_grouping.each_value do |group|
	group.each do |code|
		language_used_in_group[code] = true
	end
end

# a hash with language name as key and array of languages as the value
language_groups = Hash.new
# single languages first
languages.each do |language|
	# temporary remove cyrilic serbian until someone explains what is needed
	if language.code == 'sr-cyrl' then
		languages.delete(language)
	elsif language_used_in_group[language.code] == nil then
		language_groups[language.name] = [language]
	end
end
# then groups of languages
language_grouping.each do |name,group|
	language_groups[name] = []
	group.each do |code|
		language_groups[name].push($l[code])
	end
end

language_groups.sort.each do |language_name,language_list|
	first_line_printed = false
	language_list.each do |language|
		if not first_line_printed then
			puts "<tr>\n\t<td><b>#{language_name.capitalize}</b></td>"
			first_line_printed = true;
		else
			puts "<tr>\n\t<td>&nbsp;</td>"
		end

		# synonyms
		if language.synonyms != nil and language.synonyms.length > 0 then
			synonyms=", #{language.synonyms.join(', ')}"
		else
			synonyms=""
		end
		puts "\t<td>#{language.name}#{synonyms}</td>"

#		if language.use_old_patterns == false then
		if language.use_new_loader == true then
			url_patterns = "#{$ctan_url}/patterns/hyph-#{language.code}.tex"
			code = "<a href=\"#{url_patterns}\">#{language.code}</a>"
		else
			url_patterns = ""
			code = language.code
		end
		
		puts "\t<td>#{code}</td>"

		# lefthyphenmin/righthyphenmin
		if language.hyphenmin == nil or language.hyphenmin.length == 0 then
			lmin = ''
			rmin = ''
		elsif language.filename_old_patterns == "zerohyph.tex" then
			lmin = ''
			rmin = ''
		else
			lmin = language.hyphenmin[0]
			rmin = language.hyphenmin[1]
		end
		puts "\t<td>(#{lmin},#{rmin})</td>"
		# which file to use
		if language.use_new_loader then
			file = "loadhyph-#{language.code}.tex"
		else
			file = "#{language.filename_old_patterns}"
		end
		#puts "\t<td>#{file}</td>"
		if language.encoding == nil then
			encoding = ""
		else
			encoding = language.encoding.upcase
		end
		puts "\t<td>#{encoding}</td>"
		puts "</tr>\n"
	end
	# if language_name != "russian" and language_name != "ukrainian" then
	# 	language_list.each do |language|
	# 		if language.use_old_patterns and language.filename_old_patterns != "zerohyph.tex" then
	# 			$file_tlpsrc.puts "runpattern f texmf/tex/generic/hyphen/#{language.filename_old_patterns}"
	# 		end
	# 	end
	# end
	# if language_name == "greek" then
	# 	$file_tlpsrc.puts "docpattern d texmf/doc/generic/elhyphen"
	# elsif language_name == "hungarian" then
	# 	$file_tlpsrc.puts "docpattern d texmf/doc/generic/huhyphen"
	# elsif language_name == "german" then
	# 	$file_tlpsrc.puts "runpattern f texmf/tex/generic/hyphen/dehyphtex.tex"
	# 	$file_tlpsrc.puts "runpattern f texmf/tex/generic/hyphen/ghyphen.README"
	# end
	# $file_tlpsrc.close
end

#--------------#
# language.dat #
#--------------#
$file_language_dat = File.open("#{$path_language_dat}/language.dat", "w")
language_groups.sort.each do |language_name,language_list|
	language_list.each do |language|
		if language.use_new_loader then
			$file_language_dat.puts "#{language.name}\tloadhyph-#{language.code}.tex"
		else
			$file_language_dat.puts "#{language.name}\t#{language.filename_old_patterns}"
		end

		# synonyms
		if language.synonyms != nil then
			language.synonyms.each do |synonym|
				$file_language_dat.puts "=#{synonym}"
			end
		end
	end
end
$file_language_dat.close