import "macro_todo" as $

import "macro_todo" as {$, :$todo}

export macro config = (debugging = true)->
	global debugMode = debugging == "true"
	global debugMacro = true
	""

export macro showMacro = (name, res)->
	if debugMacro then "
do
	txt = #{res}
	print '[macro ' .. #{name} .. ']'
	print txt
	txt
"
	else
		res

export macro asserts = (cond)->
	if debugMode
		$showMacro "assert", "assert #{cond}"
	else
		""

export macro assert = (cond)->
	if debugMode
		$showMacro "assert", "assert #{cond}"
	else
		"#{cond}"

export macro copy = (src, dst, ...)->
	assert(
		src != "_src_" and src != "_dst_" and dst != "_src_" and dst != "_dst_"
		"copy targets can not be _src_ or _dst_"
	)
	"
do
	local _src_, _dst_
	with _dst_ = #{dst}
		with _src_ = #{src}
#{table.concat for field in *{...} do "
			_dst_.#{field} = _src_.#{field}
"}"

export macro enum = (...) ->
	items = {...}
	items = [item\gsub('"', '') for item in *items]
	itemSet = {item, true for item in *items}
	(...) ->
		count = select "#", ...
		if 1 < count
			result = "["
			for i = 1, count
				item = select i, ...
				error "got \"#{item}\", expecting one of #{table.concat items, ', '}" unless itemSet[item]
				result ..= "\"#{item}\","
			result .. "]"
		else
			item = select 1, ...
			error "got \"#{item}\", expecting one of #{table.concat items, ', '}" unless itemSet[item]
			"\"#{item}\""

$ ->
	global debugMode = true
	global debugMacro = true