Module:Navbox: Difference between revisions

@@ Line 136: / Line 136: @@
 		args = h.parseArgs(args)
 	end
+	args = h.expandAutomaticGroups(args)
 	h.runHook('onLoadConfig', config, args)
@@ Line 161: / Line 163: @@
 		return h.render(dataTree)
 	end
+end
+-- Expand automatic group markers
+function h.expandAutomaticGroups(args)
+	local PREFIX = '__NAVBOX_AUTO_GROUPS__'
+	local markers = {}
+	for k, v in pairs(args) do
+		if type(k) == 'number' and type(v) == 'string' and v:sub(1, #PREFIX) == PREFIX then
+			markers[#markers + 1] = k
+		end
+	end
+	table.sort(markers)
+	for _, markerKey in ipairs(markers) do
+		local payload = args[markerKey]:sub(#PREFIX + 1)
+		local ok, data = pcall(mw.text.jsonDecode, payload)
+		if not ok or type(data) ~= 'table' or type(data.rows) ~= 'table' then
+			error('Invalid Navbox Automatic Groups data.')
+		end
+		local index = tonumber(data.start) or 1
+		if index < 1 or index % 1 ~= 0 then
+			error('Invalid Navbox Automatic Groups start index.')
+		end
+		for _, row in ipairs(data.rows) do
+			local groupKey = index .. ':group'
+			local listKey = index .. ':list'
+			if args[groupKey] ~= nil or args[listKey] ~= nil then
+				error('Navbox Automatic Groups overlaps an existing row at index ' .. index .. '.')
+			end
+			if row.group ~= nil and row.group ~= '' then
+				args[groupKey] = row.group
+			end
+			if row.list ~= nil then
+				args[listKey] = row.list
+			end
+			index = index + 1
+		end
+		args[markerKey] = nil
+	end
+	return args
 end