local awful = require("awful")
local beautiful = require("beautiful")
local wibox = require("wibox")

local _M = {}

function _M.update(stdout)
	local vol_now = {
		volume = "N/A",
		muted = "N/A",
		icon = "N/A",
	}

	vol_now.volume = stdout:gsub("%s+", "")
	vol_now.volume = vol_now.volume:gsub("%%", "")
	if vol_now.volume == "muted" then
		vol_now.muted = true
		vol_now.volume = -1
	else
        vol_now.volume = tonumber(vol_now.volume)
		vol_now.muted = false
	end

	if vol_now.muted or vol_now.volume == 0 then
		vol_now.icon = beautiful.volume_muted_icon
	elseif vol_now.volume >= 66 then
		vol_now.icon = beautiful.volume_high_icon
	elseif vol_now.volume >= 33 then
		vol_now.icon = beautiful.volume_medium_icon
	else
		vol_now.icon = beautiful.volume_low_icon
	end

	return vol_now
end

function _M.get()
	local volume = awful.widget.watch(
		{
			awful.util.shell,
			"-c",
			"pamixer --get-volume-human",
		},
		1,
		function(widget, stdout)
			local vol_now = _M.update(stdout)

			local icon = wibox.widget.imagebox(vol_now.icon)
			local text = wibox.widget.textbox(vol_now.volume .. "% ")

			widget.children = {
				text,
				icon,
			}
		end,
		wibox.widget({
			layout = wibox.layout.fixed.horizontal,
		})
	)

	return volume
end

return setmetatable({}, {
	__call = function(_, ...)
		return _M.get(...)
	end,
})