#!/usr/bin/lua

local util = require 'gluon.util'
local unistd = require 'posix.unistd'

local state_dir = "/var/gluon/state/"
local check_dir = "/lib/gluon/state/check.d/"


local function set_flag(stateflag, state)
	if state then
		-- this does not modify atime
		local flaghandle = io.open(stateflag, "w")
		flaghandle:close()
	else
		os.remove(stateflag)
	end
end

local function exec_check(checkpath)
	local checkname = string.sub(checkpath, #check_dir+1)
	local ret = os.execute(checkpath)
	local flagfile = state_dir..checkname
	set_flag(flagfile, 0==ret)
end

local function run_executable_checks()
	for _, v in ipairs(util.glob(check_dir..'*')) do
		if unistd.access(v, 'x') then
			exec_check(v)
		end
	end
end


-- ensure state path exists
if not unistd.access(state_dir) then
	os.execute("mkdir -p "..state_dir)
end

run_executable_checks()