local backlight = {}


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

backlight.arc = wibox.widget {
	{
		backlight.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
}


backlight.widget = wibox.widget {
	{
		{   -- Right space
			widget = wibox.widget.separator,
			color = beautiful.color.transparent,
			forced_width = beautiful.dpi(3)
		},
		{   -- Main indicator. Can be replaced with backlight.arc
			backlight.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,
}

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

end)

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

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

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

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

end


-- Add various hooks
wrapper.backlight.add_hook(backlight.update)
bin.backlight.watch(
	5,
	function()
		wrapper.backlight.read(backlight.update)
	end,
	backlight.widget
)

return backlight.widget