모듈:DateConverter

local p = {}

local Date = require('Module:Date')._Date

local function trim(s)
	-- incase nil
	if s == nil then return '' end
	s = tostring(s)
	return s:gsub("^%s+", ""):gsub("%s+$", "")
end

function p.DateConverter(frame)
	local qid = frame.args[2]
	local entity, propertyID
	local rawdate
	local m, d, y = ''
	local datavec, lang, case, class, trimYear
	local pencil, datestr

	if qid == nil then
		entity = mw.wikibase.getEntityObject()
	else
		entity = mw.wikibase.getEntityObject(qid)
	end

	if entity == nil then
		return ""
	end

	propertyID = trim(frame.args[1])
	if entity.claims[propertyID] == nil then
		return ""
	end
	rawdate = entity:formatPropertyValues(propertyID).value

	local dtFormat = {
		"(%d+)%s+(%d+)%s+(%d+)",
		"(%d*)월%s+(%d*)",
		"(%d+)"
	}

	m, y = string.match(rawdate, dtFormat[2])
	if m == nil then
		d, m, y = string.match(rawdate, dtFormat[1])
		if d == nil then
			d = ''
			m = ''
			y = string.match(rawdate, dtFormat[3])
			if y == nil then
				return ""
			end
		end
	end

	datavec = { y, m, d, '', '', '' }
	lang = ko
	case = ''
	class = 'dtstart'
	trimYear = '100-999'
	pencil = frame:expandTemplate{
		title = 'EditAtWikidata',
		args = {
			qid = qid,
			pid = propertyID
		}
	}

	if frame.args['pencil'] == ('no' or 'N') then
		datestr = Date(datavec, lang, case, class, trimYear)
	else
		datestr = Date(datavec, lang, case, class, trimYear) .. pencil
	end

	return datestr
end

return p