Mô đun:GoogleMapsLinks

local p = {}
-- note: P17 is the country property ID on wd 
local function getP17(qid)
	if not qid or qid == '' then return nil end
	local ok, entity = pcall(mw.wikibase.getEntity, qid)
	if not ok or not entity or not entity.claims or not entity.claims.P17 then
		return nil
	end
	local claim = entity.claims.P17[1]
	if claim and claim.mainsnak and claim.mainsnak.datavalue then
		return claim.mainsnak.datavalue.value.id
	end
	return nil
end

local function getCountryQid(listingQid)
	local countryQid = nil
	if listingQid then
		countryQid = getP17(listingQid)
	end
	if not countryQid then
		local pageQid = mw.wikibase.getEntityIdForCurrentPage()
		if pageQid then
			countryQid = getP17(pageQid)
		end
	end
	return countryQid
end

function p.gmaps(frame)
	local args = frame.args
	local lat, long = args.lat, args.long

	if not lat or not long or lat == '' or long == '' or lat == 'NA' or long == 'NA' then
		return ''
	end

	local gmapParam = args.gmap or 'yes'
	if string.lower(gmapParam) == 'no' then return '' end

	local countryQid = getCountryQid(args.wikidata)

	-- note: Q148 is China, Q884 is SK, Q241 is Iran, Q794 is Cuba
	if countryQid == 'Q148' or countryQid == 'Q884' or countryQid == 'Q241' or countryQid == 'Q794' then
		return ''
	end

	return string.format(
		'&#32;[[File:Google Maps icon (2020).svg|10px|class=listing-sister|link=https://www.google.com/maps/dir/?api=1&destination=%s,%s|Chỉ đường trên Google Maps]]',
		lat, long
	)
end

return p