--[[

     Licensed under GNU General Public License v2
      * (c) 2013, Luca CPZ

--]]

local helpers = require('lain.helpers')
local wibox = require('wibox')
local tonumber = tonumber

-- {thermal,core} temperature info
-- lain.widget.temp

local function factory(args)
	args = args or {}

	local temp = { widget = args.widget or wibox.widget.textbox() }
	local timeout = args.timeout or 30
	local tempfile = args.tempfile or '/sys/devices/virtual/thermal/thermal_zone0/temp'
	local format = args.format or '%.1f'
	local settings = args.settings or function() end

	function temp.update()
		helpers.async({ 'find', '/sys/devices', '-type', 'f', '-name', '*temp*' }, function(f)
			temp_now = {}
			local temp_fl, temp_value
			for t in f:gmatch('[^\n]+') do
				temp_fl = helpers.first_line(t)
				if temp_fl then
					temp_value = tonumber(temp_fl)
					temp_now[t] = temp_value and temp_value / 1e3 or temp_fl
				end
			end
			if temp_now[tempfile] then
				coretemp_now = string.format(format, temp_now[tempfile])
			else
				coretemp_now = 'N/A'
			end
			widget = temp.widget
			settings()
		end)
	end

	helpers.newtimer('thermal', timeout, temp.update)

	return temp
end

return factory