----------------------------------
-- This is the bluetooth widget --
----------------------------------

-- Awesome Libs
local awful = require("awful")
local color = require("theme.crylia.colors")
local dpi = require("beautiful").xresources.apply_dpi
local gears = require("gears")
local wibox = require("wibox")

-- Icon directory path
local icondir = awful.util.getdir("config") .. "theme/crylia/assets/icons/bluetooth/"

-- Returns the bluetooth widget
return function ()
    local bluetooth_widget = wibox.widget{
        {
            {
                {
                    id = "icon",
                    image = gears.color.recolor_image(icondir .. "bluetooth-off.svg"),
                    widget = wibox.widget.imagebox,
                    resize = false
                },
                id = "icon_layout",
                widget = wibox.container.place
            },
            id = "icon_margin",
            left = dpi(5),
            right = dpi(5),
            widget = wibox.container.margin
        },
        bg = color.color["Blue200"],
        fg = color.color["Grey900"],
        shape = function (cr, width, height)
            gears.shape.rounded_rect(cr, width, height, 5)
        end,
        widget = wibox.widget.background
    }

    local bluetooth_tooltip = awful.tooltip{
        objects = {bluetooth_widget},
        text = "",
        mode = "inside",
        align = "right",
        margins = dpi(10)
    }

    local bluetooth_state = "off"
    local connected_device = "nothing"

    local get_bluetooth_information = function ()
        awful.spawn.easy_async_with_shell(
            [[ bluetoothctl show | grep Powered | awk '{print $2}' ]],
            function (stdout)
                local icon = icondir .. "bluetooth"
                stdout = stdout:gsub("\n", "")
                if stdout == "yes" then
                    icon = icon .. "-on"
                    bluetooth_state = "on"
                    awful.spawn.easy_async_with_shell(
                        [[ bluetoothctl info | grep Name: | awk '{ first = $1; $1 = ""; print $0 }' ]],
                        function (stdout2)
                            if stdout2 == nil or stdout2:gsub("\n", "") == "" then
                                bluetooth_tooltip:set_text("Bluetooth is turned " .. bluetooth_state .. "\n" .. "You are currently not connected")
                            else
                                bluetooth_tooltip:set_text("Bluetooth is turned " .. bluetooth_state .. "\n" .. "You are currently connected to:" .. connected_device)
                                connected_device = stdout2
                            end
                        end
                    )
                else
                    icon = icon .. "-off"
                    bluetooth_state = "off"
                    bluetooth_tooltip:set_text("Bluetooth is turned " .. bluetooth_state .. "\n")
                end
                bluetooth_widget.icon_margin.icon_layout.icon:set_image(gears.color.recolor_image(icon .. ".svg", color.color["Grey900"]))
            end
        )
    end

    local bluetooth_update = gears.timer{
        timeout = 5,
        autostart = true,
        call_now = true,
        callback = function ()
            get_bluetooth_information()
        end
    }

    -- Signals
    local old_wibox, old_cursor, old_bg
    bluetooth_widget:connect_signal(
        "mouse::enter",
        function ()
            old_bg = bluetooth_widget.bg
            bluetooth_widget.bg = color.color["Blue200"] .. "dd"
            local w = mouse.current_wibox
            if w then
                old_cursor, old_wibox = w.cursor, w
                w.cursor = "hand1"
            end
        end
    )

    bluetooth_widget:connect_signal(
        "button::press",
        function ()
            bluetooth_widget.bg = color.color["Blue200"] .. "bb"
        end
    )

    bluetooth_widget:connect_signal(
        "button::release",
        function ()
            bluetooth_widget.bg = color.color["Blue200"] .. "dd"
        end
    )

    bluetooth_widget:connect_signal(
        "mouse::leave",
        function ()
            bluetooth_widget.bg = old_bg
            if old_wibox then
                old_wibox.cursor = old_cursor
                old_wibox = nil
            end
        end
    )

    bluetooth_widget:connect_signal(
        "button::press",
        function ()
            if bluetooth_state == "on" then
                awful.spawn.easy_async_with_shell(
                    "bluetoothctl power off",
                    function (stdout)
                        get_bluetooth_information()
                    end
                )
            else
                awful.spawn.easy_async_with_shell(
                    "bluetoothctl power on",
                    function (stdout)
                        get_bluetooth_information()
                    end
                )
            end
        end
    )

    get_bluetooth_information()
    return bluetooth_widget
end