Editing Module:Inventory slot

local p = {}

function p.formatDescription(description, preferredLineLength)
	local lineLength = 0
	local result = ""

	for i = 1, #description do
		local c = description:sub(i, i)
    	if c == " " then
    		if lineLength > preferredLineLength then
        		lineLength = 0
        		result = result .. "\\n§8"
    		else
        		result = result .. c
    		end
    	else
    		lineLength = lineLength + 1
    		result = result .. c
    	end
	end

	return result
end

function p.createSlot( f )
	local args = f
	local currentFrame = mw.getCurrentFrame()
	if f == currentFrame then 
		args = require( 'Module:ProcessArgs' ).merge( true )
	else
		f = currentFrame
	end
	
	local aliases = require( "Module:Inventory slot/aliases" ).aliases
	local descriptions = require( "Module:Inventory slot/descriptions" ).descriptions
	
	local sprite = require( "Module:Sprite" ).get
	local ids = mw.loadData( "Module:InvSprite" ).ids
	local width = args.width or 32
	local height = args.height or 32
	local item = args.item or ""
	local pageName = mw.title.getCurrentTitle().text
	
	local slotContainerCss = {
		"width: " .. width .. "px",
		"height: " .. height .. "px",
		"position: relative"
	}
	local slotContainer = mw.html.create( "div" )
	slotContainer:addClass( "inventory-slot" )
		:addClass( "animated" )
		:cssText( table.concat( slotContainerCss, ";" ) )
	
	local slotCss = {
		"display: inline-block",
		"width: 32px",
		"height: 32px",
		"position: relative",
		"padding: 2px"
	}
	for i, value in ipairs(p.parseString( args.item )) do
		local name = value.name
		local item = value.item
		local count = value.count
		if aliases[item] then
			for j, subvalue in ipairs(aliases[item]) do
				local display = i == j == 1 and "display: inline-block" or "display: none" -- sets display of the first element to `inline-block` and the rest to `none`
				
				-- Set name, item and description
				local subname = nil
				local subitem = nil
				local subdescription = nil
				if type(subvalue) == "string" then
					subname = subvalue
					subitem = subvalue
					subdescription = subvalue
				else
					subname = subvalue.name or subvalue.item
					subitem = subvalue.item
					subdescription = subvalue.description or subvalue.item
				end
				
				local slot = mw.html.create( "div" )
				slot:addClass( "minecraft-item" )
					:cssText( table.concat( slotCss, ";" ) )
					:attr( "data-mctitle", (name or subname or subitem) )
				if descriptions[subdescription] or descriptions[subitem] or descriptions[subname] then
					slot:attr( "data-mcdesc", p.formatDescription((descriptions[subdescription] or descriptions[subitem] or descriptions[subname]), 16) )
				end
				if not subitem:match( '\.gif$' ) and not subitem:match( '\.png$' ) then
					slot:wikitext( sprite( { data = "InvSprite", id = subitem } ) )
				end
				
				-- Set link
				local link = nil
				if args.link and args.link ~= "y" then
					if args.link ~= "n" then
						link = args.link
					end
				elseif (subname ~= pageName and subname) or args.link == "y" then
					link = require("Module:Inventory slot/links").links[subname]
				end
				
				-- Set the item count
				if count then
					local itemCount = mw.html.create( "span" )
					itemCount:cssText( "position: absolute; right: 0; bottom: -2px; pointer-events: none;" )
						:addClass( "c-0" )
						:addClass( "shadow" )
						:wikitext( count )
					
					slot:node( itemCount )
				end
				
				-- Use an image if the item ends in .gif or .png
				if subitem:match( '\.gif$' ) or subitem:match( '\.png$' ) then
					slot:wikitext( "<span class=\"sprite pixelated\" style=\"width: 32px; height: 32px;\">[[File:" .. subitem .. "|160px|link=" .. (link or "") .. "]]</span>" )
					slotContainer:wikitext( tostring( slot ) )
				else
					if link then
						slotContainer:wikitext( "<span style='" .. display .. "' class='no-external-icon'>" .. "[https://bta.miraheze.org/wiki/" .. link:gsub(" ", "_") .. " " .. tostring( slot ) .. "]" .. "</span>" )
					else
						slotContainer:wikitext( "<span style='" .. display .. "'>" .. tostring( slot ) .. "</span>" )
					end
				end
			end
		else
			local display = i == 1 and "display: inline-block" or "display: none"
			
			if item ~= 'Air' then
				local slot = mw.html.create( "div" )
				slot:addClass( "minecraft-item" )
					:cssText( table.concat( slotCss, ";" ) )
					:attr( "data-mctitle", (name or item) )
				if descriptions[item] then
					slot:attr( "data-mcdesc", p.formatDescription(descriptions[item], 16) )
				end
				slot:wikitext( sprite( { data = "InvSprite", id = item } ) )
				
				local link = nil
				if args.link and args.link ~= "y" then
					if args.link ~= "n" then
						link = args.link
					end
				elseif (require("Module:Inventory slot/links").links[item] ~= pageName and item) or args.link == "y" then
					link = require("Module:Inventory slot/links").links[item]
				end
				
				if count then
					local itemCount = mw.html.create( "span" )
					itemCount:cssText( "position: absolute; right: 0; bottom: -2px; pointer-events: none;" )
						:addClass( "c-0" )
						:addClass( "shadow" )
						:wikitext( count )
						
					slot:node( itemCount )
				end
				
				if link or (args.link and args.link ~= "y" and args.link ~= "n") then
					slotContainer:wikitext( "<span style='" .. display .. "' class='no-external-icon'>" .. "[https://bta.miraheze.org/wiki/" .. link:gsub(" ", "_") .. " " .. tostring( slot ) .. "]" .. "</span>" )
				else
					slotContainer:wikitext( "<span style='" .. display .. "'>" .. tostring( slot ) .. "</span>" )
				end
			else
				slotContainer:wikitext( "<span style='" .. display .. "'><!-- Air --></span>")
			end
		end
	end
	
	return slotContainer
end

p.value = {
	["Steel Ingot"] = "Hello",
	["Steel Ingot5"] = "Hello",
	["Steel Ingot10"] = "Hello"
}

function p.test(value)
	if value == 1 then
		for i = 1, 1000 do
			if require("Module:Inventory slot/descriptions").descriptions["Steel Ingot"] then
				mw.log("Exists")
			else
				mw.log("Does not exist")
			end
		end
	else
		for i = 1, 101 do
			mw.log(mw.title.new("Steel Ingot" .. i).exists)
		end
	end
end

function p.parseString(input)
	if input then
	    local strings = {}
	    for str in input:gmatch("[^;]+") do
	        table.insert(strings, str:match("^%s*(.-)%s*$"))
	    end
	    
	    local result = {}
	    
	    for _, str in ipairs(strings) do
	        local name, item, count = str:match("^%[(.-)%](.-),?(%d*)$")
	        if name then
	            table.insert(result, { name = name:gsub("^%s*(.-)%s*$", "%1"), item = item:gsub("^%s*(.-)%s*$", "%1"), count = tonumber(count) })
	        else
	            item, count = str:match("(.-),?(%d*)$")
	            table.insert(result, { name = nil, item = item:gsub("^%s*(.-)%s*$", "%1"), count = tonumber(count) })
	        end
	    end
	    
	    return result
	else
		return {}
	end
end

return p