Module:RarityHandler

Documentation for this module may be created at Module:RarityHandler/doc

local p = {}

-- Clean up the rarity string: strip ~, commas, trim
local function clean(rarity)
	if not rarity or type(rarity) ~= "string" then return nil end
	rarity = mw.text.trim(rarity)
	rarity = rarity:gsub("^~", "") -- remove ~
	rarity = rarity:gsub(",", "") -- remove commas
	return rarity
end

function p.containsSlash(frame)
	local val = frame.args[1] or ""
	if val:find("/") then
		return "true"
	else
		return "false"
	end
end

function p.getSortValue(frame)
	local raw = frame.args[1]
	if not raw or type(raw) ~= "string" then return 999999999 end

	local rarity = clean(raw)
	if not rarity then return 999999999 end

	local lowered = rarity:lower()

	if lowered == "1" or lowered == "always" then
		return 1
	elseif lowered == "rare" then
		return 999999998
	elseif lowered == "never" then
		return 0
	end

	-- Match 1/X, return raw number (not string)
	local numStr = lowered:match("^1/(%d+%.?%d*)$")
	if numStr then
		local num = tonumber(numStr)
		if num then return math.floor(num) end
	end

	return 999999999
end

-- For logic styling
function p.getCleanValue(frame)
	local rarity = clean(frame.args[1])
	if not rarity then return "Unknown" end
	if rarity == "1" then return "Always" end
	return rarity
end

-- For display
function p.normalizeDisplay(frame)
	local original = frame.args[1]
	if not original or type(original) ~= "string" then return "Unknown" end
	local trimmed = mw.text.trim(original)
	local hasTilde = trimmed:sub(1, 1) == "~"
	local cleaned = hasTilde and trimmed:sub(2) or trimmed

	if cleaned == "1" then return "Always" end

	local prefix, num = cleaned:match("^(1/)(%d+%.?%d*)$")
	if prefix and num then
		local withCommas = mw.language.getContentLanguage():formatNum(tonumber(num))
		return (hasTilde and "~" or "") .. prefix .. withCommas
	end

	return hasTilde and "~" .. cleaned or cleaned
end

return p