{ config, pkgs, ... }:
''
    os.setlocale(os.getenv("LANG"))

    pcall(require, "luarocks.loader")

    local gears = require("gears")
    local awful = require("awful")
    require("awful.autofocus")
    local wibox = require("wibox")
    local beautiful = require("beautiful")
    local naughty = require("naughty")
    local hotkeys_popup = require("awful.hotkeys_popup")
    require("awful.hotkeys_popup.keys")
    local vicious = require("vicious")

    awful.spawn.with_shell(
    'if (xrdb -query | grep -q "^awesome\\.started:\\s*true$"); then exit; fi;' ..
    'xrdb -merge <<< "awesome.started:true";' ..
    'dex --environment Awesome --autostart --search-paths "$${XDG_CONFIG_HOME:-$HOME/.config}/autostart:$${XDG_CONFIG_DIRS:-/etc/xdg}/autostart";'
    )

    -- {{{ Error handling
    if awesome.startup_errors then
      naughty.notify({
        preset = naughty.config.presets.critical,
        title = "Oops, there were errors during startup!",
        text = awesome.startup_errors,
      })
    end
    do
      local in_error = false
      awesome.connect_signal("debug::error", function(err)
        if in_error then
          return
        end
        in_error = true

        naughty.notify({
          preset = naughty.config.presets.critical,
          title = "Oops, an error happened!",
          text = tostring(err),
        })
        in_error = false
      end)
    end
    -- }}}

    -- {{{ Variable definitions

    local terminal = "${config.desktop.terminal}"
    local file_manager = "${config.desktop.fileManager}"
    local browser = "${config.desktop.browser}"
    local launcher = "${pkgs.rofi}/bin/rofi -show drun"

    local modkey = "Mod4"

    local layouts = {
      awful.layout.suit.spiral.dwindle,
      awful.layout.suit.tile,
      awful.layout.suit.floating,
    }
    local clock_format = "%A %d.%m.%Y %H:%M"
    local wallpaper = os.getenv("HOME") .. "/.wallpaper.jpg"
    local wifi_interface = ${config.desktop.awesome.wifi_device}
    local bat_device = ${config.desktop.awesome.battery_device}

    beautiful.init(os.getenv("HOME") .. "/.config/awesome/theme.lua")
    beautiful.wallpaper = wallpaper

    local tags = { "", "", "", "", "", "", "", "󰮂", "󰓓" }

    awful.layout.layouts = layouts
    -- }}}

    -- {{{ Bar
    -- Create a launcher widget and a main menu
    local mytextclock = wibox.widget.textclock(" " .. clock_format)

    -- Create a wibox for each screen and add it
    local taglist_buttons = gears.table.join(
      awful.button({}, 1, function(t)
        t:view_only()
      end),
      awful.button({ modkey }, 1, function(t)
        if client.focus then
          client.focus:move_to_tag(t)
        end
      end),
      awful.button({}, 3, awful.tag.viewtoggle),
      awful.button({ modkey }, 3, function(t)
        if client.focus then
          client.focus:toggle_tag(t)
        end
      end),
      awful.button({}, 4, function(t)
        awful.tag.viewnext(t.screen)
      end),
      awful.button({}, 5, function(t)
        awful.tag.viewprev(t.screen)
      end)
    )

    local tasklist_buttons = gears.table.join(
      awful.button({}, 1, function(c)
        if c == client.focus then
          c.minimized = true
        else
          c:emit_signal("request::activate", "tasklist", { raise = true })
        end
      end),
      awful.button({}, 3, function()
        awful.menu.client_list({ theme = { width = 250 } })
      end),
      awful.button({}, 4, function()
        awful.client.focus.byidx(1)
      end),
      awful.button({}, 5, function()
        awful.client.focus.byidx(-1)
      end)
    )

    local function set_wallpaper(s)
      -- Wallpaper
      if beautiful.wallpaper then
        local _wallpaper = beautiful.wallpaper
        -- If wallpaper is a function, call it with the screen
        if type(_wallpaper) == "function" then
          _wallpaper = wallpaper(s)
        end
        gears.wallpaper.maximized(_wallpaper, s, true)
      end
    end

    -- Re-set wallpaper when a screen's geometry changes (e.g. different resolution)
    screen.connect_signal("property::geometry", set_wallpaper)

    awful.screen.connect_for_each_screen(function(s)
      -- Wallpaper
      set_wallpaper(s)

      -- Each screen has its own tag table.
      --awful.tag({ " 1 ", " 2 ", " 3 ", " 4 ", " 5 ", " 6 ", " 7 ", " 8 ", " 9 " }, s, awful.layout.layouts[1])
      awful.tag(tags, s, awful.layout.layouts[1])

      local cpuwidget = wibox.widget.textbox()
      vicious.cache(vicious.widgets.cpu)
      vicious.register(cpuwidget, vicious.widgets.cpu, " $1% ", 5)

      local memwidget = wibox.widget.textbox()
      vicious.cache(vicious.widgets.mem)
      vicious.register(memwidget, vicious.widgets.mem, " 󰍛 $1% ", 5)

      local volwidget = wibox.widget.textbox()
      vicious.cache(vicious.widgets.volume)
      vicious.register(volwidget, vicious.widgets.volume, "  $1% ", 1, { "Master", "-D", "pipewire" })

      local wifiwidget = nil
      if wifi_interface ~= nil then
        wifiwidget = wibox.widget.textbox()
        vicious.cache(vicious.widgets.wifiiw)
        vicious.register(wifiwidget, vicious.widgets.wifiiw, " 󰖩 ''${linp}% ", 30, wifi_interface)
      end

      local batwidget = nil
      if bat_device ~= nil then
        batwidget = wibox.widget.textbox()
        vicious.cache(vicious.widgets.bat)
        vicious.register(batwidget, vicious.widgets.bat, " 󰁹 $2% ", 60, bat_device)
      end

      local mylayoutbox = awful.widget.layoutbox(s)
      mylayoutbox:buttons(gears.table.join(
        awful.button({}, 1, function()
          awful.layout.inc(1)
        end),
        awful.button({}, 3, function()
          awful.layout.inc(-1)
        end),
        awful.button({}, 4, function()
          awful.layout.inc(1)
        end),
        awful.button({}, 5, function()
          awful.layout.inc(-1)
        end)
      ))
      -- Create a taglist widget
      local mytaglist = awful.widget.taglist({
        screen = s,
        filter = awful.widget.taglist.filter.noempty,
        buttons = taglist_buttons,
      })

      -- Create a tasklist widget
      local mytasklist = awful.widget.tasklist({
        screen = s,
        filter = awful.widget.tasklist.filter.currenttags,
        buttons = tasklist_buttons,
      })

      -- Create the wibox
      local mywibox = awful.wibar({ position = "top", screen = s, height = 20 })

      -- Add widgets to the wibox
      mywibox:setup({
        layout = wibox.layout.align.horizontal,
        { -- Left widgets
          layout = wibox.layout.fixed.horizontal,
          spacing = 6,
          mytaglist,
        },
        mytasklist, -- Middle widget
        {           -- Right widgets
          layout = wibox.layout.fixed.horizontal,
          spacing = 6,
          batwidget,
          wifiwidget,
          volwidget,
          cpuwidget,
          memwidget,
          mytextclock,
          wibox.widget.systray(),
          mylayoutbox,
        },
      })
    end)
    -- }}}

    -- {{{ Mouse bindings
    root.buttons(gears.table.join(awful.button({}, 4, awful.tag.viewnext), awful.button({}, 5, awful.tag.viewprev)))
    -- }}}

    -- {{{ Key bindings
    local globalkeys = gears.table.join(
      awful.key({ modkey }, "s", hotkeys_popup.show_help, { description = "show help", group = "awesome" }),
      awful.key({ modkey }, "Left", awful.tag.viewprev, { description = "view previous", group = "tag" }),
      awful.key({ modkey }, "Right", awful.tag.viewnext, { description = "view next", group = "tag" }),
      awful.key({ modkey }, "Escape", awful.tag.history.restore, { description = "go back", group = "tag" }),
      awful.key({ modkey }, "j", function()
        awful.client.focus.byidx(1)
      end, { description = "focus next by index", group = "client" }),
      awful.key({ modkey }, "k", function()
        awful.client.focus.byidx(-1)
      end, { description = "focus previous by index", group = "client" }),

      -- Layout manipulation
      awful.key({ modkey, "Shift" }, "j", function()
        awful.client.swap.byidx(1)
      end, { description = "swap with next client by index", group = "client" }),
      awful.key({ modkey, "Shift" }, "k", function()
        awful.client.swap.byidx(-1)
      end, { description = "swap with previous client by index", group = "client" }),
      awful.key({ modkey, "Control" }, "j", function()
        awful.screen.focus_relative(1)
      end, { description = "focus the next screen", group = "screen" }),
      awful.key({ modkey, "Control" }, "k", function()
        awful.screen.focus_relative(-1)
      end, { description = "focus the previous screen", group = "screen" }),
      awful.key({ modkey }, "u", awful.client.urgent.jumpto, { description = "jump to urgent client", group = "client" }),
      awful.key({ modkey }, "Tab", function()
        awful.client.focus.history.previous()
        if client.focus then
          client.focus:raise()
        end
      end, { description = "go back", group = "client" }),

      -- Standard program
      awful.key({ modkey }, "Return", function()
        awful.spawn(terminal)
      end, { description = "open a terminal", group = "launcher" }),
      awful.key({ modkey, "Shift"  }, "x", function() awful.spawn("rofi -show p -modi p:rofi-power-menu") end, { description = "power menu", group = "launcher" }),
      awful.key({ modkey, "Control" }, "r", awesome.restart, { description = "reload awesome", group = "awesome" }),
      awful.key({ modkey, "Control" }, "x", awesome.quit, { description = "quit awesome", group = "awesome" }),
      awful.key({ modkey }, "l", function()
        awful.tag.incmwfact(0.05)
      end, { description = "increase master width factor", group = "layout" }),
      awful.key({ modkey }, "h", function()
        awful.tag.incmwfact(-0.05)
      end, { description = "decrease master width factor", group = "layout" }),
      awful.key({ modkey, "Shift" }, "h", function()
        awful.tag.incnmaster(1, nil, true)
      end, { description = "increase the number of master clients", group = "layout" }),
      awful.key({ modkey, "Shift" }, "l", function()
        awful.tag.incnmaster(-1, nil, true)
      end, { description = "decrease the number of master clients", group = "layout" }),
      awful.key({ modkey, "Control" }, "h", function()
        awful.tag.incncol(1, nil, true)
      end, { description = "increase the number of columns", group = "layout" }),
      awful.key({ modkey, "Control" }, "l", function()
        awful.tag.incncol(-1, nil, true)
      end, { description = "decrease the number of columns", group = "layout" }),
      awful.key({ modkey }, "space", function()
        awful.layout.inc(1)
      end, { description = "select next", group = "layout" }),
      awful.key({ modkey, "Shift" }, "space", function()
        awful.layout.inc(-1)
      end, { description = "select previous", group = "layout" }),

      awful.key({ modkey, "Control" }, "n", function()
        local c = awful.client.restore()
        -- Focus restored client
        if c then
          c:emit_signal("request::activate", "key.unminimize", { raise = true })
        end
      end, { description = "restore minimized", group = "client" }),

      -- Prompt
      awful.key({ modkey }, "r", function()
        awful.spawn(launcher)
      end, { description = "run launcher", group = "launcher" }),
      awful.key({ modkey }, "w", function()
        awful.spawn(browser)
      end, { description = "run firefox", group = "launcher" }),
      awful.key({ modkey }, "e", function()
        awful.spawn(file_manager)
      end, { description = "run file manager", group = "launcher" }),

      -- Volume Keys
      awful.key({}, "XF86AudioLowerVolume", function()
        awful.util.spawn("amixer -q -D pipewire sset Master 5%-", false)
      end),
      awful.key({}, "XF86AudioRaiseVolume", function()
        awful.util.spawn("amixer -q -D pipewire sset Master 5%+", false)
      end),
      awful.key({}, "XF86AudioMute", function()
        awful.util.spawn("amixer -D pipewire set Master 1+ toggle", false)
      end),
      -- Media Keys
      awful.key({}, "XF86AudioPlay", function()
        awful.util.spawn("playerctl play-pause", false)
      end),
      awful.key({}, "XF86AudioNext", function()
        awful.util.spawn("playerctl next", false)
      end),
      awful.key({}, "XF86AudioPrev", function()
        awful.util.spawn("playerctl previous", false)
      end)
    )

    local clientkeys = gears.table.join(
      awful.key({ modkey }, "f", function(c)
        c.fullscreen = not c.fullscreen
        c:raise()
      end, { description = "toggle fullscreen", group = "client" }),
      awful.key({ modkey, "Shift" }, "q", function(c)
        c:kill()
      end, { description = "close", group = "client" }),
      awful.key({ modkey }, "q", function(c)
        c:kill()
      end, { description = "close", group = "client" }),
      awful.key(
        { modkey, "Control" },
        "space",
        awful.client.floating.toggle,
        { description = "toggle floating", group = "client" }
      ),
      awful.key({ modkey, "Control" }, "Return", function(c)
        c:swap(awful.client.getmaster())
      end, { description = "move to master", group = "client" }),
      awful.key({ modkey }, "o", function(c)
        c:move_to_screen()
      end, { description = "move to screen", group = "client" }),
      awful.key({ modkey }, "t", function(c)
        c.ontop = not c.ontop
      end, { description = "toggle keep on top", group = "client" }),
      awful.key({ modkey }, "n", function(c)
        -- The client currently has the input focus, so it cannot be
        -- minimized, since minimized clients can't have the focus.
        c.minimized = true
      end, { description = "minimize", group = "client" }),
      awful.key({ modkey }, "m", function(c)
        c.maximized = not c.maximized
        c:raise()
      end, { description = "(un)maximize", group = "client" }),
      awful.key({ modkey, "Control" }, "m", function(c)
        c.maximized_vertical = not c.maximized_vertical
        c:raise()
      end, { description = "(un)maximize vertically", group = "client" }),
      awful.key({ modkey, "Shift" }, "m", function(c)
        c.maximized_horizontal = not c.maximized_horizontal
        c:raise()
      end, { description = "(un)maximize horizontally", group = "client" })
    )

    -- Bind all key numbers to tags.
    -- Be careful: we use keycodes to make it work on any keyboard layout.
    -- This should map on the top row of your keyboard, usually 1 to 9.
    for i = 1, 9 do
      globalkeys = gears.table.join(
        globalkeys,
        -- View tag only.
        awful.key({ modkey }, "#" .. i + 9, function()
          local screen = awful.screen.focused()
          local tag = screen.tags[i]
          if tag then
            tag:view_only()
          end
        end, { description = "view tag #" .. i, group = "tag" }),
        -- Toggle tag display.
        awful.key({ modkey, "Control" }, "#" .. i + 9, function()
          local screen = awful.screen.focused()
          local tag = screen.tags[i]
          if tag then
            awful.tag.viewtoggle(tag)
          end
        end, { description = "toggle tag #" .. i, group = "tag" }),
        -- Move client to tag.
        awful.key({ modkey, "Shift" }, "#" .. i + 9, function()
          if client.focus then
            local tag = client.focus.screen.tags[i]
            if tag then
              client.focus:move_to_tag(tag)
            end
          end
        end, { description = "move focused client to tag #" .. i, group = "tag" }),
        -- Toggle tag on focused client.
        awful.key({ modkey, "Control", "Shift" }, "#" .. i + 9, function()
          if client.focus then
            local tag = client.focus.screen.tags[i]
            if tag then
              client.focus:toggle_tag(tag)
            end
          end
        end, { description = "toggle focused client on tag #" .. i, group = "tag" })
      )
    end

    local clientbuttons = gears.table.join(
      awful.button({}, 1, function(c)
        c:emit_signal("request::activate", "mouse_click", { raise = true })
      end),
      awful.button({ modkey }, 1, function(c)
        c:emit_signal("request::activate", "mouse_click", { raise = true })
        awful.mouse.client.move(c)
      end),
      awful.button({ modkey }, 3, function(c)
        c:emit_signal("request::activate", "mouse_click", { raise = true })
        awful.mouse.client.resize(c)
      end)
    )

    -- Set keys
    root.keys(globalkeys)
    -- }}}

    -- {{{ Rules
    -- Rules to apply to new clients (through the "manage" signal).
    --
    local function is_terminal(c)
      return (c.class and c.class:match("itty")) and true or false
    end

    local function copy_size(c, parent_client)
      if not c or not parent_client then
        return
      end
      if not c.valid or not parent_client.valid then
        return
      end
      c.x = parent_client.x
      c.y = parent_client.y
      c.width = parent_client.width
      c.height = parent_client.height
    end

    local function check_resize_client(c)
      if c.child_resize then
        copy_size(c.child_resize, c)
      end
    end

    client.connect_signal("property::size", check_resize_client)
    client.connect_signal("property::position", check_resize_client)
    client.connect_signal("manage", function(c)
      if is_terminal(c) then
        return
      end
      local parent_client = awful.client.focus.history.get(c.screen, 1)
      if parent_client and is_terminal(parent_client) then
        parent_client.child_resize = c
        c.floating = true
        copy_size(c, parent_client)
      end
    end)
    --
    awful.rules.rules = {
      -- All clients will match this rule.
      {
        rule = {},
        properties = {
          border_width = beautiful.border_width,
          border_color = beautiful.border_normal,
          focus = awful.client.focus.filter,
          raise = true,
          keys = clientkeys,
          buttons = clientbuttons,
          screen = awful.screen.preferred,
          placement = awful.placement.no_overlap + awful.placement.no_offscreen,
        },
      },

      -- Floating clients.
      {
        rule_any = {
          instance = {
            "DTA",   -- Firefox addon DownThemAll.
            "copyq", -- Includes session name in class.
            "pinentry",
          },
          class = {
            "Arandr",
            "Blueman-manager",
            "Gpick",
            "Kruler",
            "MessageWin",  -- kalarm.
            "Sxiv",
            "Tor Browser", -- Needs a fixed window size to avoid fingerprinting by screen size.
            "Wpa_gui",
            "veromix",
            "xtightvncviewer",
          },

          -- Note that the name property shown in xprop might be set slightly after creation of the client
          -- and the name shown there might not match defined rules here.
          name = {
            "Event Tester", -- xev.
          },
          role = {
            "AlarmWindow",   -- Thunderbird's calendar.
            "ConfigManager", -- Thunderbird's about:config.
            "pop-up",        -- e.g. Google Chrome's (detached) Developer Tools.
          },
        },
        properties = { floating = true },
      },

      -- Add titlebars to normal clients and dialogs
      { rule_any = { type = { "normal", "dialog" } }, properties = { titlebars_enabled = false } },

      -- Set Firefox to always map on the tag named "2" on screen 1.
      -- { rule = { class = "Firefox" },
      --   properties = { screen = 1, tag = "2" } },
      {
        rule_any = { class = { "steamwebhelper", "steam" } },
        properties = { screen = 1, tag = tags[9] },
      },
      -- Media
      {
        rule = {
          class = "mpv",
        },
        properties = { tag = tags[7], fullscreen = true, floating = false, maximized = false },
      },
      -- Games
      {
        rule_any = {
          class = { "steam_app_251730" },
        },
        properties = { screen = 1, tag = tags[8], fullscreen = true, floating = false, maximized = false },
      },
    }
    -- }}}

    -- {{{ Signals
    -- Signal function to execute when a new client appears.
    client.connect_signal("manage", function(c)
      -- Set the windows at the slave,
      -- i.e. put it at the end of others instead of setting it master.
      if not awesome.startup then
        awful.client.setslave(c)
      end

      if awesome.startup and not c.size_hints.user_position and not c.size_hints.program_position then
        -- Prevent clients from being unreachable after screen count changes.
        awful.placement.no_offscreen(c)
      end
    end)

    -- Add a titlebar if titlebars_enabled is set to true in the rules.
    client.connect_signal("request::titlebars", function(c)
      -- buttons for the titlebar
      local buttons = gears.table.join(
        awful.button({}, 1, function()
          c:emit_signal("request::activate", "titlebar", { raise = true })
          awful.mouse.client.move(c)
        end),
        awful.button({}, 3, function()
          c:emit_signal("request::activate", "titlebar", { raise = true })
          awful.mouse.client.resize(c)
        end)
      )

      awful.titlebar(c):setup({
        { -- Left
          awful.titlebar.widget.iconwidget(c),
          buttons = buttons,
          layout = wibox.layout.fixed.horizontal,
        },
        {   -- Middle
          { -- Title
            align = "center",
            widget = awful.titlebar.widget.titlewidget(c),
          },
          buttons = buttons,
          layout = wibox.layout.flex.horizontal,
        },
        { -- Right
          awful.titlebar.widget.floatingbutton(c),
          awful.titlebar.widget.maximizedbutton(c),
          awful.titlebar.widget.stickybutton(c),
          awful.titlebar.widget.ontopbutton(c),
          awful.titlebar.widget.closebutton(c),
          layout = wibox.layout.fixed.horizontal(),
        },
        layout = wibox.layout.align.horizontal,
      })
    end)

    -- Enable sloppy focus, so that focus follows mouse.
    client.connect_signal("mouse::enter", function(c)
      c:emit_signal("request::activate", "mouse_enter", { raise = false })
    end)

    client.connect_signal("focus", function(c)
      c.border_color = beautiful.border_focus
    end)
    client.connect_signal("unfocus", function(c)
      c.border_color = beautiful.border_normal
    end)
    -- }}}
''