local p = {}
local track = require("وحدة:Wikidata/تتبع").makecategory1

function comparedates2(a, b) -- returns true if a is earlier than B or if a has a date but not b
	if a.year and b.year then
		return a.year > b.year
	elseif a.year then
		return true
	end
end
local function normalizeDate(date)
	date = mw.text.trim(date, "+")
	-- extract year
	local yearstr = mw.ustring.match(date, "^-?%d+")
	local year = yearstr
	--year = tonumber(yearstr)
	-- remove leading zeros of year
	--return year .. mw.ustring.sub(date, #yearstr + 1), year
	return year
end
function p.P1082(claims, options)
	local icon = track({property = "P1082", id = options.entityId or ""})
	local Teams = {}
	options.reff = ""
	options.noref = "r"

	if options.pup and options.pup ~= "" then
		table.insert(Teams, {value = options.pup, year = options.year})
	end

	for _, statement in pairs(claims) do
		local tab = {ref = "", year = "", value = ""}
		local va = formatOneStatement(statement, "", options)

		if statement and statement.qualifiers and statement.qualifiers.P585 then
			if statement.qualifiers.P585[1].snaktype == "value" then
				tab.year = normalizeDate(statement.qualifiers.P585[1].datavalue.value.time)
			end
		end

		if statement.references then
			tab.references = statement.references
		end

		if va and va.v and va.v ~= "" then
			tab.value = va.v
			table.insert(Teams, tab)
		end
	end

	table.sort(
		Teams,
		function(a, b)
			return comparedates2(a, b)
		end
	)

	local tables = {}
	if #Teams > 0 then
		tables = {Teams[1]}
		local tables2 = {}

		local function sp(p, y)
			p = tonumber(mw.text.trim(p))
			if p and p ~= "" then
				local pup = mw.getContentLanguage():formatNum(p)
				return y and y ~= "" and (pup .. " <small>(إحصاء " .. y .. ")</small>") or pup
			else
				return ""
			end
		end

		for _, ss in pairs(tables) do
			local ba = ss.value
			local ref = ""

			if ss.references and refr and refr ~= "" then
				ref = formatReferences(ss, options)
			end

			if ss.year and ss.year ~= "" then
				ba = sp(ss.value, ss.year) .. ref
				if ss.value ~= options.pup then
					ba = ba .. icon
				end
			end

			table.insert(tables2, ba)
		end

		return mw.text.listToText(tables2, options.separator, options.conjunction)
	end
end
return p