local writers, readers do
	local registered_types = 0
	writers, readers = {}, {}

	local function add_type(name, ...)
		_G["NET_" .. string.upper(name)] = registered_types

		if not ... then
			writers[registered_types] = string.format("net.Write%s(${value})", name)
			readers[registered_types] = string.format("${value} = net.Read%s()", name)
		else
			writers[registered_types], readers[registered_types] = ...
		end

		registered_types = registered_types + 1
	end

	add_type("Angle")
	add_type("Bit")
	add_type("Bool")
	add_type("Color")

	add_type(
		"Data",
		"net.WriteUInt(#${value}, 32)\nnet.WriteData(${value}, #${value})",
		"${value} = net.ReadData(net.ReadUInt(32))"
	)

	add_type("Double")
	add_type("Entity")
	add_type("Float")

	add_type(
		"Int8",
		"net.WriteInt(${value}, 8)",
		"${value} = net.ReadInt(8)"
	)
	add_type(
		"Int16",
		"net.WriteInt(${value}, 16)",
		"${value} = net.ReadInt(16)"
	)
	add_type(
		"Int32",
		"net.WriteInt(${value}, 32)",
		"${value} = net.ReadInt(32)"
	)

	add_type("Matrix")
	add_type("Normal")
	add_type("String")
	add_type("Table")
	add_type("Type")

	add_type(
		"UInt8",
		"net.WriteUInt(${value}, 8)",
		"${value} = net.ReadUInt(8)"
	)
	add_type(
		"UInt16",
		"net.WriteUInt(${value}, 16)",
		"${value} = net.ReadUInt(16)"
	)
	add_type(
		"UInt32",
		"net.WriteUInt(${value}, 32)",
		"${value} = net.ReadUInt(32)"
	)

	add_type("Vector")
end

local function n2s(n)
	if n == 0 then return "a" end

	local s = ""

	while n > 0 do
		s = s .. string.char(97 + n % 26)
		n = math.floor(n / 26)
	end

	return s
end

local function generate_writer(...)
	local func = {}
	local vars = {}

	for i, t in ipairs({...}) do
		local var = n2s(i - 1)
		local line = string.gsub(writers[t], "${value}", var)

		table.insert(vars, var)
		table.insert(func, line)
	end

	table.insert(func, 1, string.format("local %s = ...", table.concat(vars, ", ")))

	return CompileString(table.concat(func, "\n"), "net_struct")
end

local function generate_reader(...)
	local func = {}
	local vars = {}

	for i, t in ipairs({...}) do
		local var = n2s(i - 1)
		local line = string.gsub(readers[t], "${value}", var)

		table.insert(vars, var)
		table.insert(func, line)
	end

	table.insert(func, 1, string.format("local %s", table.concat(vars, ", ")))
	table.insert(func, string.format("return %s", table.concat(vars, ", ")))

	return CompileString(table.concat(func, "\n"), "net_struct")
end

return {
	Writer = generate_writer,
	Reader = generate_reader,
}