--[[

This module provides a language name handling operations based on ISO 639 and Unicode CLDR information.

 - ChongDae

]]

local lang = {}

local langdata = mw.loadData('Module:Langname/data') local lang_name = langdata.lang_name local lang_autonym = langdata.lang_autonym local lang_article = langdata.lang_article local lang_wikipedia = langdata.lang_wikipedia

--[[ -- Helper functions --]] local function getCldrName(code)

   local name = mw.language.fetchLanguageName(code, 'ko')
   if name ==  then

       return nil
   elseif string.match(name, '[(),A-Za-z]') then       -- 이름에 영문자나 괄호, 쉼표가 들어간 경우는 오류 처리함.
       return nil
   else
       return name
   end

end

function getCldrAutonym(code)

   local lang = string.match(code, '([a-z]+)') -- get 'en' from 'en-us'
   return lang_autonym[code] or mw.language.fetchLanguageName(code, lang)

end

local function getLanguageName(code)

   return lang_name[code] or getCldrName(code)

end

function lang.name(frame)

   local code = string.lower(frame.args.code)
   
   return getLanguageName(code) or '언어 오류(' .. code .. ')'

end

function lang.autonym(frame)

   local code = string.lower(frame.args.code)
   return getCldrAutonym(code) or '언어 오류(' .. code .. ')'

end

function lang.article(frame)

   local code = string.lower(frame.args.code)
   
   return lang_article[code] or getLanguageName(code) or '언어 오류'

end

function lang.wikipedia(frame)

   local code = string.lower(frame.args.code)
   
   return lang_wikipedia[code] or getLanguageName(code) or '언어 오류(' .. code .. ')'

end

function lang.link(frame)

   local code = string.lower(frame.args.code)
   local link = frame.args.link
   local article = lang_article[code]
   local name = getLanguageName(code)
   if link == 'no' then
       return name or '언어 오류(' .. code .. ')'
   elseif article then
       return '' .. name .. ''
   elseif name then
       return '' .. name .. ''
   else
       return '언어 오류(' .. code .. ')'
   end

end

return lang