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local lang = require("Module:languages").getByCode("sje")

local export = {}


-- Inflection functions

function export.odd(frame)
	local fparams = {
	}
	
	local fargs = require("Module:parameters").process(frame.args, fparams)
	
	local params = {
		[1] = {required = true, default = "{{{1}}}"},
	}
	
	local args = require("Module:parameters").process(frame:getParent().args, params)
	local stem = require("Module:sje-common").Stem(args[1])
	
	local data = {
		forms = {},
		info = "odd, no gradation",
		categories = {},
	}
	
	if stem.ucons == "" and mw.title.getCurrentTitle().nsText ~= "Template" then
		error("The stem must end in a consonant.")
	end
	
	table.insert(data.categories, lang:getCanonicalName() .. " odd verbs")
	
	data.forms["inf"]       = {stem:make_form{ending = "it"}}
	data.forms["pres|ptcp"] = {stem:make_form{ending = "äddje"}}
	data.forms["past|ptcp"] = {stem:make_form{ending = "am"}}
	
	data.forms["1|s|pres|indc"] = {stem:make_form{ending = "av"}}
	data.forms["2|s|pres|indc"] = {stem:make_form{ending = "a"}}
	data.forms["3|s|pres|indc"] = {stem:make_form{}, stem:make_form{ending = "a"}}
	data.forms["1|d|pres|indc"] = {stem:make_form{ending = "in"}}
	data.forms["2|d|pres|indc"] = {stem:make_form{ending = "iehpen"}, stem:make_form{ending = "ähppen"}}
	data.forms["3|d|pres|indc"] = {stem:make_form{ending = "iebá"}}
	data.forms["1|p|pres|indc"] = {stem:make_form{ending = "ip"}}
	data.forms["2|p|pres|indc"] = {stem:make_form{ending = "ihpit"}}
	data.forms["3|p|pres|indc"] = {stem:make_form{ending = "i"}}
	data.forms["indc|conn"] = {stem:make_form{ending = "a"}}
	
	data.forms["1|s|past|indc"] = {stem:make_form{ending = "iv"}}
	data.forms["2|s|past|indc"] = {stem:make_form{ending = "i"}}
	data.forms["3|s|past|indc"] = {stem:make_form{ending = "ij"}}
	data.forms["1|d|past|indc"] = {stem:make_form{ending = "ijmen"}}
	data.forms["2|d|past|indc"] = {stem:make_form{ending = "ijden"}}
	data.forms["3|d|past|indc"] = {stem:make_form{ending = "ijga"}}
	data.forms["1|p|past|indc"] = {stem:make_form{ending = "ijme"}}
	data.forms["2|p|past|indc"] = {stem:make_form{ending = "ijde"}}
	data.forms["3|p|past|indc"] = {stem:make_form{ending = "in"}}
	
	data.forms["2|s|impr"] = {stem:make_form{ending = "e"}}
	data.forms["2|d|impr"] = {stem:make_form{ending = "ehtin"}}
	data.forms["2|p|impr"] = {stem:make_form{ending = "ihtit"}}
	data.forms["impr|conn"] = {stem:make_form{ending = "a"}}
	
	data.forms["1|s|potn"] = {stem:make_form{ending = "ittjav"}}
	data.forms["2|s|potn"] = {stem:make_form{ending = "ittja"}}
	data.forms["3|s|potn"] = {stem:make_form{ending = "itj"}}
	data.forms["1|d|potn"] = {stem:make_form{ending = "ittjin"}}
	data.forms["2|d|potn"] = {stem:make_form{ending = "ittjabehtin"}, stem:make_form{ending = "ittjabähtten"}}
	data.forms["3|d|potn"] = {stem:make_form{ending = "ittjaba"}}
	data.forms["1|p|potn"] = {stem:make_form{ending = "ittjap"}}
	data.forms["2|p|potn"] = {stem:make_form{ending = "ittjabihtit"}}
	data.forms["3|p|potn"] = {stem:make_form{ending = "ittji"}}
	data.forms["potn|conn"] = {stem:make_form{ending = "ittja"}}
	
	postprocess(args, data)
	
	return make_table(data)
end


function postprocess(args, data)
	data.lemma = data.forms["inf"][1]
	
	-- Check if the lemma form matches the page name
	if (lang:makeEntryName(data.lemma)) ~= mw.title.getCurrentTitle().text then
		table.insert(data.categories, lang:getCanonicalName() .. " entries with inflection not matching pagename")
	end
end


-- Make the table
function make_table(data)
	local function repl(param)
		local accel = true
		local no_store = false
		
		if param == "info" then
			return mw.getContentLanguage():ucfirst(data.info or "")
		elseif string.sub(param, 1, 1) == "!" then
			no_store = true
			param = string.sub(param, 2)
		elseif string.sub(param, 1, 1) == "#" then
			accel = false
			param = string.sub(param, 2)
		end
		
		local forms = data.forms[param]
		
		if not forms then
			return "—"
		end
		
		local ret = {}
		
		for key, subform in ipairs(forms) do
			table.insert(ret, require("Module:links").full_link({lang = lang, term = subform, accel = accel and {form = param, lemma = data.lemma, no_store = no_store} or nil}))
		end
		
		return table.concat(ret, "<br/>")
	end
	
	local wikicode = [=[
{| class="inflection-table vsSwitcher" data-toggle-category="inflection" style="border: solid 1px #CCCCFF;" cellspacing="1" cellpadding="2"
|- style="background: #E2F6E2; text-align: left;"
! class="vsToggleElement" colspan="4" | {{{info}}}
|- class="vsShow" style="background: #F2F2FF;"
! style="width: 11em; background: #E2F6E2;" | infinitive
| style="width: 15em;" colspan="2" | {{{!inf}}}
|- class="vsShow" style="background: #F2F2FF;"
! style="background: #E2F6E2;" | 1st&nbsp;sing.&nbsp;present
| colspan="2" | {{{!1|s|pres|indc}}}
|- class="vsShow" style="background: #F2F2FF;"
! style="background: #E2F6E2;" | 1st&nbsp;sing.&nbsp;past
| colspan="2" | {{{!1|s|past|indc}}}
|- class="vsHide" style="background: #F2F2FF;"
! style="background: #E2F6E2;" | infinitive
| colspan="3" | {{{inf}}}
|- class="vsHide" style="background: #F2F2FF;"
! style="background: #E2F6E2;" | present&nbsp;participle
| colspan="3" | {{{pres|ptcp}}}
|- class="vsHide" style="background: #F2F2FF;"
! style="background: #E2F6E2;" | past&nbsp;participle
| colspan="3" | {{{past|ptcp}}}
|- class="vsHide"
! style="background: #C0E4C0; width: 11em;" |
! style="background: #C0E4C0; width: 15em;" | present indicative
! style="background: #C0E4C0; width: 15em;" | past indicative
! style="background: #C0E4C0; width: 15em;" | imperative
|- class="vsHide" style="background: #F2F2FF;"
! style="background: #E2F6E2;" | 1st&nbsp;singular
| data-accel-col="1" | {{{1|s|pres|indc}}}
| data-accel-col="2" | {{{1|s|past|indc}}}
| data-accel-col="3" | {{{1|s|impr}}}
|- class="vsHide" style="background: #F2F2FF;"
! style="background: #E2F6E2;" | 2nd&nbsp;singular
| data-accel-col="1" | {{{2|s|pres|indc}}}
| data-accel-col="2" | {{{2|s|past|indc}}}
| data-accel-col="3" | {{{2|s|impr}}}
|- class="vsHide" style="background: #F2F2FF;"
! style="background: #E2F6E2;" | 3rd&nbsp;singular
| data-accel-col="1" | {{{3|s|pres|indc}}}
| data-accel-col="2" | {{{3|s|past|indc}}}
| data-accel-col="3" | {{{3|s|impr}}}
|- class="vsHide" style="background: #F2F2FF;"
! style="background: #E2F6E2;" | 1st&nbsp;dual
| data-accel-col="1" | {{{1|d|pres|indc}}}
| data-accel-col="2" | {{{1|d|past|indc}}}
| data-accel-col="3" | {{{1|d|impr}}}
|- class="vsHide" style="background: #F2F2FF;"
! style="background: #E2F6E2;" | 2nd&nbsp;dual
| data-accel-col="1" | {{{2|d|pres|indc}}}
| data-accel-col="2" | {{{2|d|past|indc}}}
| data-accel-col="3" | {{{2|d|impr}}}
|- class="vsHide" style="background: #F2F2FF;"
! style="background: #E2F6E2;" | 3rd&nbsp;dual
| data-accel-col="1" | {{{3|d|pres|indc}}}
| data-accel-col="2" | {{{3|d|past|indc}}}
| data-accel-col="3" | {{{3|d|impr}}}
|- class="vsHide" style="background: #F2F2FF;"
! style="background: #E2F6E2;" | 1st&nbsp;plural
| data-accel-col="1" | {{{1|p|pres|indc}}}
| data-accel-col="2" | {{{1|p|past|indc}}}
| data-accel-col="3" | {{{1|p|impr}}}
|- class="vsHide" style="background: #F2F2FF;"
! style="background: #E2F6E2;" | 2nd&nbsp;plural
| data-accel-col="1" | {{{2|p|pres|indc}}}
| data-accel-col="2" | {{{2|p|past|indc}}}
| data-accel-col="3" | {{{2|p|impr}}}
|- class="vsHide" style="background: #F2F2FF;"
! style="background: #E2F6E2;" | 3rd&nbsp;plural
| data-accel-col="1" | {{{3|p|pres|indc}}}
| data-accel-col="2" | {{{3|p|past|indc}}}
| data-accel-col="3" | {{{3|p|impr}}}
|- class="vsHide" style="background: #F2F2FF;"
! style="background: #E2F6E2;" | connegative
| data-accel-col="1" colspan="2" | {{{indc|conn}}}
| data-accel-col="3" | {{{impr|conn}}}
|- class="vsHide"
! style="background: #C0E4C0;" |
! style="background: #F2F2FF;" rowspan="11" |
! style="background: #C0E4C0;" | potential
! style="background: #F2F2FF;" rowspan="11" |
|- class="vsHide" style="background: #F2F2FF;"
! style="background: #E2F6E2;" | 1st&nbsp;singular
| data-accel-col="5" | {{{1|s|potn}}}
|- class="vsHide" style="background: #F2F2FF;"
! style="background: #E2F6E2;" | 2nd&nbsp;singular
| data-accel-col="5" | {{{2|s|potn}}}
|- class="vsHide" style="background: #F2F2FF;"
! style="background: #E2F6E2;" | 3rd&nbsp;singular
| data-accel-col="5" | {{{3|s|potn}}}
|- class="vsHide" style="background: #F2F2FF;"
! style="background: #E2F6E2;" | 1st&nbsp;dual
| data-accel-col="5" | {{{1|d|potn}}}
|- class="vsHide" style="background: #F2F2FF;"
! style="background: #E2F6E2;" | 2nd&nbsp;dual
| data-accel-col="5" | {{{2|d|potn}}}
|- class="vsHide" style="background: #F2F2FF;"
! style="background: #E2F6E2;" | 3rd&nbsp;dual
| data-accel-col="5" | {{{3|d|potn}}}
|- class="vsHide" style="background: #F2F2FF;"
! style="background: #E2F6E2;" | 1st&nbsp;plural
| data-accel-col="5" | {{{1|p|potn}}}
|- class="vsHide" style="background: #F2F2FF;"
! style="background: #E2F6E2;" | 2nd&nbsp;plural
| data-accel-col="5" | {{{2|p|potn}}}
|- class="vsHide" style="background: #F2F2FF;"
! style="background: #E2F6E2;" | 3rd&nbsp;plural
| data-accel-col="5" | {{{3|p|potn}}}
|- class="vsHide" style="background: #F2F2FF;"
! style="background: #E2F6E2;" | connegative
| data-accel-col="5" | {{{potn|conn}}}
|}]=]

	return mw.ustring.gsub(wikicode, "{{{[#!]?([a-z0-9|]+)}}}", repl) .. require("Module:utilities").format_categories(data.categories, lang)
end

return export