local backlight = req_rel(..., "util")
local widget = {}


widget.icon = wibox.widget {
	id = "icon",
	image = beautiful.icons.brightness.i,
	resize = true,
	widget = wibox.widget.imagebox,
}

widget.arc = wibox.widget {
	{
		widget.icon,
		top = beautiful.dpi(1),
		bottom = beautiful.dpi(1),
		layout = wibox.container.margin,
	},
	max_value = 100,
	thickness = beautiful.dpi(4),
	start_angle = 4.71238898, -- 2pi*3/4
	--forced_height = beautiful.dpi(16),
	--forced_width = beautiful.dpi(16),
	colors = {"#27D4CC", "#00446B"},
	bg = "#FFFFFF30",
	paddings = beautiful.dpi(2),
	widget = wibox.container.arcchart
}


widget.widget = wibox.widget {
	{
		{   -- Right space
			widget = wibox.widget.separator,
			color = beautiful.color.transparent,
			forced_width = beautiful.dpi(3)
		},
		{   -- Main indicator. Can be replaced with widget.arc
			widget.arc,
			top = beautiful.dpi(2),
			bottom = beautiful.dpi(2),
			layout = wibox.container.margin,
		},
		{   -- Left space
			widget = wibox.widget.separator,
			color = beautiful.color.transparent,
			forced_width = beautiful.dpi(3)
		},
		layout = wibox.layout.align.horizontal,
	},
	layout = wibox.container.background,
}

widget.widget:connect_signal("mouse::enter", function(result)
	widget.widget.bg = beautiful.color.bar.hover_bg

end)

widget.widget:connect_signal("mouse::leave", function(result)
	widget.widget.bg = beautiful.color.transparent
end)

widget.widget:connect_signal("button::press",
	function(_, _, _, button, mods)
		-- Scroll up
		if (button == 4) then
			backlight.backlight_up()
		-- Scroll down
		elseif (button == 5) then
			backlight.backlight_down()
		end
	end
)

widget.update = function(value)
	widget.arc.value = value

	--[[if     value >  90 then widget.icon.image = beautiful.icons.brightness.i
	elseif value >  80 then widget.icon.image = beautiful.icons.brightness.h
	elseif value >  70 then widget.icon.image = beautiful.icons.brightness.g
	elseif value >  60 then widget.icon.image = beautiful.icons.brightness.f
	elseif value >  50 then widget.icon.image = beautiful.icons.brightness.e
	elseif value >  40 then widget.icon.image = beautiful.icons.brightness.d
	elseif value >  30 then widget.icon.image = beautiful.icons.brightness.c
	elseif value >  20 then widget.icon.image = beautiful.icons.brightness.b
	elseif value <= 10 then widget.icon.image = beautiful.icons.brightness.a end
	--]]

end


backlight.add_hook(widget.update)
backlight.watch(
	5,
	function()
		backlight.read(widget.update)
	end,
	widget.widget
)

return widget