Модул:rhymes

---

local export = {}

function export.show_nav(frame)
	-- Gather parameters
	local args = frame:getParent().args
	local lang = args[1] or (mw.title.getCurrentTitle().nsText == "Template" and "und") or error("Language code has not been specified. Please pass parameter 1 to the template.")
	lang = require("Module:languages").getByCode(lang) or error("The language code \"" .. lang .. "\" is not valid.")
	
	local parts = {}
	local i = 2
	
	while args[i] do
		local part = args[i]; if part == "" then part = nil end
		table.insert(parts, part)
		i = i + 1
	end
	
	-- Create steps
	local steps = {"» [[Wiktionary:Rhymes|Рхаймс]]", "» [[Рхаймс:" .. lang:getCanonicalName() .. "|" .. lang:getCanonicalName() .. "]]"}
	local categories = {}
	
	if #parts > 0 then
		local last = parts[#parts]
		parts[#parts] = nil
		local prefix = ""

		for i, part in ipairs(parts) do
			prefix = prefix .. part
			parts[i] = prefix
		end
		
		for _, part in ipairs(parts) do
			table.insert(steps, "» [[Рхаймс:" .. lang:getCanonicalName() .. "/" .. part .. "-|-" .. part .. "-]]")
		end
		
		if last == "-" then
			table.insert(steps, "» [[Рхаймс:" .. lang:getCanonicalName() .. "/" .. prefix .. "|-" .. prefix .. "]]")
			table.insert(categories, "[[Category:Рхаймси " .. lang:getCanonicalName() (prefix == "" and "" or "/" .. prefix .. "-") .. "| ]]")
		elseif mw.title.getCurrentTitle().text == lang:getCanonicalName() .. "/" .. prefix .. last .. "-" then
			table.insert(steps, "» [[Рхаймс:" .. lang:getCanonicalName() .. "/" .. prefix .. last .. "-|-" .. prefix .. last .. "-]]")
			table.insert(categories, "[[Category:Рхаймси " .. lang:getCanonicalName() .. "/" .. prefix .. last .. "-|-]]")
		else
			table.insert(steps, "» [[Рхаймс:" .. lang:getCanonicalName() .. "/" .. prefix .. last .. "|-" .. prefix .. last .. "]]")
			table.insert(categories, "[[Category:Рхаймси " .. lang:getCanonicalName() .. " rhymes" .. (prefix == "" and "" or "/" .. prefix .. "-") .. "|" .. last .. "]]")
		end
	elseif lang ~= "und" then
		table.insert(categories, "[[Category:Рхаймси " .. lang:getCanonicalName() .. " rhymes| ]]")
	end
	
	return table.concat(steps, " ") .. table.concat(categories)
end

return export