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-- This is the brightness_osd module --
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-- Awesome Libs
local awful = require("awful")
local dpi = require("beautiful").xresources.apply_dpi
local gears = require("gears")
local wibox = require("wibox")

local capi = {
  awesome = awesome,
  mouse = mouse,
}

-- Icon directory path
local icondir = awful.util.getdir("config") .. "src/assets/icons/brightness/"

return function(s)

  local brightness_osd_widget = wibox.widget {
    {
      {
        { -- Brightness Icon
          image = gears.color.recolor_image(icondir .. "brightness-high.svg", Theme_config.brightness_osd.icon_color),
          valign = "center",
          halign = "center",
          resize = false,
          id = "icon",
          widget = wibox.widget.imagebox
        },
        { -- Brightness Bar
          {
            {
              id = "progressbar1",
              color = Theme_config.brightness_osd.bar_bg_active,
              background_color = Theme_config.brightness_osd.bar_bg,
              max_value = 100,
              value = 0,
              forced_height = dpi(6),
              shape = function(cr, width, height)
                gears.shape.rounded_bar(cr, width, height, dpi(6))
              end,
              widget = wibox.widget.progressbar
            },
            id = "progressbar_container2",
            halign = "center",
            valign = "center",
            widget = wibox.container.place
          },
          id = "progressbar_container",
          width = dpi(240),
          heigth = dpi(20),
          stragety = "max",
          widget = wibox.container.constraint
        },
        id = "layout1",
        spacing = dpi(10),
        layout = wibox.layout.fixed.horizontal
      },
      id = "margin",
      margins = dpi(10),
      widget = wibox.container.margin
    },
    forced_width = dpi(300),
    forced_height = dpi(80),
    shape = function(cr, width, height)
      gears.shape.rounded_rect(cr, width, height, dpi(12))
    end,
    border_color = Theme_config.brightness_osd.border_color,
    border_width = Theme_config.brightness_osd.border_width,
    fg = Theme_config.brightness_osd.fg,
    bg = Theme_config.brightness_osd.bg,
    widget = wibox.container.background
  }

  capi.awesome.connect_signal(
    "brightness::get",
    function(brightness)
      print(brightness)
      brightness_osd_widget:get_children_by_id("progressbar1")[1].value = brightness

      local icon = icondir .. "brightness"
      if brightness >= 0 and brightness < 34 then
        icon = icon .. "-low"
      elseif brightness >= 34 and brightness < 67 then
        icon = icon .. "-medium"
      elseif brightness >= 67 then
        icon = icon .. "-high"
      end
      brightness_osd_widget:get_children_by_id("icon")[1]:set_image(gears.color.recolor_image(icon .. ".svg",
        Theme_config.brightness_osd.icon_color))
    end
  )

  local brightness_container = awful.popup {
    widget = {},
    ontop = true,
    stretch = false,
    visible = false,
    screen = s,
    placement = function(c) awful.placement.bottom_left(c, { margins = dpi(20) }) end,
    shape = function(cr, width, height)
      gears.shape.rounded_rect(cr, width, height, dpi(14))
    end
  }

  local hide_brightness_osd = gears.timer {
    timeout = 2,
    autostart = true,
    callback = function()
      brightness_container.visible = false
    end
  }

  brightness_container:setup {
    brightness_osd_widget,
    layout = wibox.layout.fixed.horizontal
  }

  capi.awesome.connect_signal(
    "brightness::rerun",
    function()
      if capi.mouse.screen == s then
        brightness_container.visible = true
        if hide_brightness_osd.started then
          hide_brightness_osd:again()
        else
          hide_brightness_osd:start()
        end
      end
    end
  )
end