local icons = require 'icons'
local colors = require 'colors'
local settings = require 'settings'

-- Execute the event provider binary which provides the event "cpu_update" for
-- the cpu load data, which is fired every 2.0 seconds.
sbar.exec 'killall sk-cpu-load >/dev/null; sk-cpu-load cpu_update 2.0'

local cpu = sbar.add('graph', 'widgets.cpu', 42, {
  position = 'right',
  graph = { color = colors.blue },
  background = {
    height = 22,
    color = { alpha = 0 },
    border_color = { alpha = 0 },
    drawing = true,
  },
  icon = { string = icons.cpu },
  label = {
    string = 'cpu ??%',
    font = {
      family = settings.font.numbers,
      style = settings.font.style_map['Bold'],
      size = 9.0,
    },
    align = 'right',
    padding_right = 0,
    width = 0,
    y_offset = 4,
  },
  padding_right = settings.paddings + 6,
})

cpu:subscribe('cpu_update', function(env)
  -- Also available: env.user_load, env.sys_load
  local load = tonumber(env.total_load)
  cpu:push { load / 100. }

  local color = colors.blue
  if load > 30 then
    if load < 60 then
      color = colors.yellow
    elseif load < 80 then
      color = colors.orange
    else
      color = colors.red
    end
  end

  cpu:set {
    graph = { color = color },
    label = 'cpu ' .. env.total_load .. '%',
  }
end)

cpu:subscribe('mouse.clicked', function(env) sbar.exec "open -a 'Activity Monitor'" end)

-- Background around the cpu item
sbar.add('bracket', 'widgets.cpu.bracket', { cpu.name }, {
  background = { color = colors.bg1 },
})

-- Background around the cpu item
sbar.add('item', 'widgets.cpu.padding', {
  position = 'right',
  width = settings.group_paddings,
})