local icons = require 'icons'

local battery = sbar.add('item', {
  position = 'right',
  icon = {
    font = {
      style = 'Regular',
      size = 19.0,
    },
  },
  label = { drawing = false },
  update_freq = 120,
})

local function battery_update()
  sbar.exec('pmset -g batt', function(batt_info)
    local icon = '!'

    if string.find(batt_info, 'AC Power') then
      icon = icons.battery.charging
    else
      local found, _, charge = batt_info:find '(%d+)%%'
      if found then charge = tonumber(charge) end

      if found and charge > 80 then
        icon = icons.battery._100
      elseif found and charge > 60 then
        icon = icons.battery._75
      elseif found and charge > 40 then
        icon = icons.battery._50
      elseif found and charge > 20 then
        icon = icons.battery._25
      else
        icon = icons.battery._0
      end
    end

    battery:set { icon = icon }
  end)
end

battery:subscribe({ 'routine', 'power_source_change', 'system_woke' }, battery_update)