Module:CastleLD

Documentation for this module may be created at Module:CastleLD/doc

local p = {}

-- Helper to clean text of HTML, wiki syntax, and excess whitespace
local function sanitizeText(input)
	if not input then return "" end
	-- Remove HTML tags
	input = mw.ustring.gsub(input, "<[^>]+>", "")
	-- Remove wiki links, preserve visible text
	input = mw.ustring.gsub(input, "%[%[([^%]|]+)|([^%]]+)%]%]", "%2")
	input = mw.ustring.gsub(input, "%[%[([^%]]+)%]%]", "%1")
	-- Decode HTML entities
	input = mw.text.decode(input)
	-- Collapse whitespace
	input = mw.ustring.gsub(input, "\r?\n", " ")
	input = mw.ustring.gsub(input, "%s+", " ")
	return mw.text.trim(input)
end

function p.getJSONLD(frame)
	local castleData = frame:getParent().args

	-- Extract lat/lon
	local lat, lon = string.match(castleData["GPSLocation"] or "", "([%d%.%-]+)[,%s]+([%d%.%-]+)")

	-- Alternate names
	local altNames = {}
	if castleData["Japanese Name"] then table.insert(altNames, castleData["Japanese Name"]) end
	if castleData["Romaji Name"] then table.insert(altNames, castleData["Romaji Name"]) end
	if castleData["Alternate Names"] then table.insert(altNames, castleData["Alternate Names"]) end

	-- Build main JSON-LD structure
	local data = {
		["@context"] = "https://schema.org",
		["@type"] = "LandmarksOrHistoricalBuildings",
		name = castleData["English Name"] or "",
		alternateName = altNames,
		description = sanitizeText(castleData["History"]),
		founder = {
			["@type"] = "Person",
			name = castleData["Founder"] or ""
		},
		foundingDate = castleData["Year Founded"] or "",
		geo = {
			["@type"] = "GeoCoordinates",
			latitude = tonumber(lat),
			longitude = tonumber(lon)
		},
		address = {
			["@type"] = "PostalAddress",
			addressLocality = castleData["City"] or "",
			addressRegion = castleData["Prefecture"] or "",
			addressCountry = "Japan"
		},
		temporalCoverage = castleData["Historical Period"] or "",
		url = "https://jcastle.info/view/" .. mw.uri.encode(castleData["English Name"] or "", "WIKI"),
		tourBookingPage = sanitizeText(castleData["Website"]),
		additionalProperty = {
			{["@type"]="PropertyValue", name="Castle Condition", value=castleData["Castle Condition"] or ""},
			{["@type"]="PropertyValue", name="Castle Type", value=castleData["Castle Type"] or ""},
			{["@type"]="PropertyValue", name="Designations", value=castleData["Designations"] or ""},
			{["@type"]="PropertyValue", name="Main Keep Structure", value=castleData["Main Keep Structure"] or ""},
			{["@type"]="PropertyValue", name="Artifacts", value=castleData["Artifacts"] or ""},
			{["@type"]="PropertyValue", name="Features", value=castleData["Features"] or ""},
			{["@type"]="PropertyValue", name="Access", value=castleData["Access"] or ""},
			{["@type"]="PropertyValue", name="Visitor Information", value=castleData["Visitor Information"] or ""},
			{["@type"]="PropertyValue", name="Time Required", value=castleData["Time Required"] or ""},
			{["@type"]="PropertyValue", name="Contributor", value=castleData["Contributor"] or ""}
		}
	}

	return mw.text.jsonEncode(data, mw.text.JSON_PRETTY)
end

return p