Module:Form of

local export = {}

local m_links = require("Module:links")

local declension_tags = {
	-- Genders
	["m"] = "masculine",
	["f"] = "feminine",
	["n"] = "neuter",
	["c"] = "common",
	["s"] = "singular",
	["d"] = "dual",
	["p"] = "plural",
	
	-- Cases
	["abl"] = "ablative",
	["acc"] = "accusative",		
	["com"] = "comitative",
	["dat"] = "dative",
	["erg"] = "ergative",
	["gen"] = "genitive",
	["ins"] = "instrumental",
	["loc"] = "locative",
	["nom"] = "nominative",
	["par"] = "partitive",
	["prep"] = "prepositional",
	["voc"] = "vocative",
}

function format_t(args, iargs, text, term, alt, gloss)
	NAMESPACE = mw.title.getCurrentTitle().nsText
	
	local categories = {}
	local annotations = {}
	
	local lang = iargs["lang"] or args["lang"]; if lang == "" then lang = nil end
	local sc = args["sc"]; if sc == "" then sc = nil end
	local id = args["id"]; if id == "" then id = nil end
	annotations.gloss = gloss
	annotations.tr = args["tr"]; if annotations.tr == "" then annotations.tr = nil end
	
	if not lang then
		lang = "en"
		table.insert(categories, "Language code missing/form of")
	end
	
	lang = require("Module:languages").getLanguageByCode(lang)
	
	if not term then
		if NAMESPACE == "Template" then
			term = "term"
		else
			error("You have not given a term to link to.")
		end
	end
	
	if not text then
		error("No definition text provided.")
	end
	
	if #categories > 0 then
		local m_utilities = require("Module:utilities")
		categories = m_utilities.format_categories(categories, lang, nil)
	else
		categories = ""
	end
	
	return
		"<span class='form-of-definition'>" .. text ..  " of " ..
		"<span class='form-of-definition-link'>" .. m_links.full_link(term, alt, lang, sc, "term", id, annotations, nil) .. "</span>" ..
		"</span>" .. categories
end

function export.form_of_t(frame)
	local args = frame:getParent().args
	local iargs = frame.args
	
	local term_param = tonumber(iargs["term_param"]) or 1
	local text = iargs[1]; if text == "" then text = nil end
	
	local term = args[term_param]; if term == "" then term = nil end
	local alt = args[term_param + 1]; if alt == "" then alt = nil end
	local gloss = args[term_param + 2]; if gloss == "" then gloss = nil end
	
	return format_t(args, iargs, text, term, alt, gloss)
end

function export.inflection_t(frame)
	local args = frame:getParent().args
	local iargs = frame.args
	
	local term = args[1]; if term == "" then term = nil end
	local alt = args[2]; if alt == "" then alt = nil end
	local gloss = args["gloss"]; if gloss == "" then gloss = nil end
	
	local inflections = {}
	local i = 3
	local infl = args[i]
	
	while infl do
		if infl ~= "" then
			table.insert(inflections, declension_tags[infl] or infl)
		end
		
		i = i + 1
		infl = args[i]
	end
	
	return format_t(args, iargs, table.concat(inflections, " "), term, alt, gloss)
end

return export