Module:VariantGrid

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

local p = {}

local function notEmpty(val)
	return val and val ~= ""
end

-- Render single item token into icon format
local function renderItem(token)
	token = mw.text.trim(token)

	-- Detect quantity (Apple x2)
	local name, qty = token:match("^(.-)%s*x(%d+)$")

	if not name then
		name = token
	end

	local icon = string.format(
		'[[File:%s.png|28px|link=%s]]',
		name,
		name
	)

	if qty then
		return icon .. '<span class="vpvg-qty">×' .. qty .. '</span>'
	else
		return icon
	end
end

-- Parse multi-item strings separated by +
local function renderRequirement(content)
	if not notEmpty(content) then
		return ""
	end

	local parts = mw.text.split(content, "%+")
	local rendered = {}

	for _, part in ipairs(parts) do
		table.insert(rendered, renderItem(part))
	end

	return table.concat(rendered, '<span class="vpvg-plus">+</span>')
end

local function gameRow(label, class, content)
	if not notEmpty(content) then
		return ""
	end

	return string.format(
		'<div class="vpvg-req %s"><span class="vpvg-game">%s:</span> %s</div>',
		class,
		label,
		renderRequirement(content)
	)
end

local function renderVariant(args, index)
	local title = args["variant" .. index .. "_title"]
	if not notEmpty(title) then
		return ""
	end

	local image = args["variant" .. index .. "_image"] or ""
	local vp1 = args["variant" .. index .. "_vp1"]
	local tip = args["variant" .. index .. "_tip"]
	local pp  = args["variant" .. index .. "_pp"]

	local html = {}

	table.insert(html, '<div class="vpvg-col">')
	table.insert(html, '<div class="vpvg-title">' .. title .. '</div>')

	if notEmpty(image) then
		table.insert(html,
			'<div class="vpvg-image">[[File:' .. image .. '|160px]]</div>'
		)
	end

	table.insert(html, gameRow("VP1", "vp1", vp1))
	table.insert(html, gameRow("TIP", "tip", tip))
	table.insert(html, gameRow("PP",  "pp",  pp))

	table.insert(html, '</div>')

	return table.concat(html)
end

function p.main(frame)
	local args = frame:getParent().args
	local output = {}

	table.insert(output, '<div class="vpvg-grid">')

	for i = 1, 4 do
		table.insert(output, renderVariant(args, i))
	end

	table.insert(output, '</div>')

	return table.concat(output)
end

return p