local timer = require("gears.timer")
local wibox = require("wibox")
local utils = require("utils")

local battery_widget = wibox.widget{
    markup = 'U00',
    align = 'center',
    widget = wibox.widget.textbox
}

local battery_timer = timer({ timeout = 10 })
battery_timer:connect_signal("timeout", function() battery_update() end)
battery_timer:start()

function battery_update()
    local percent = utils.readfile("/sys/class/power_supply/BAT1/capacity")
    local status  = utils.readfile("/sys/class/power_supply/BAT1/status")

    if status == "Charging" then
        prefix = "C"
    elseif status == "Discharging" then
        prefix = "D"
    else
        prefix = "F"
    end

    battery_widget:set_markup(prefix .. percent)
end

battery_update()

return wibox.container.margin(battery_widget, 4)