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-- If LuaRocks is installed, make sure that packages installed through it are
-- found (e.g. lgi). If LuaRocks is not installed, do nothing.
pcall(require, "luarocks.loader")

-- Standard awesome library
local gears = require("gears")
local awful = require("awful")
require("awful.autofocus")
local wibox = require("wibox")
local beautiful = require("beautiful")
local naughty = require("naughty")
local menubar = require("menubar")
local hotkeys_popup = require("awful.hotkeys_popup")
require("awful.hotkeys_popup.keys")

-- Custom libraries
local charitable = require("charitable")

-- {{{ Error handling
-- Check if awesome encountered an error during startup and fell back to
-- another config (This code will only ever execute for the fallback config)
if awesome.startup_errors then
	naughty.notify({
		preset = naughty.config.presets.critical,
		title = "Oops, there were errors during startup!",
		text = awesome.startup_errors,
	})
end

-- Handle runtime errors after startup
do
    local in_error = false
    awesome.connect_signal("debug::error", function (err)
        -- Make sure we don't go into an endless error loop
        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
-- }}}

-- {{{ Background services
function run_once(cmd)
	findme = cmd
	firstspace = cmd:find(" ")

	if firstspace then
		findme = cmd:sub(0, firstspace - 1)
	end

	awful.util.spawn_with_shell("pgrep -u $USER -x " .. findme .. " > /dev/null || (" .. cmd .. ")")
end

run_once("xcompmgr")
run_once("chwp")
run_once("redshift -l 51.50:4.59 -t 6500:2500")
-- }}}

-- {{{ Variable definitions
beautiful.init(awful.util.getdir("config") .. "/theme.lua")

-- Default modkey.
modkey = "Mod4"

-- Table of layouts to cover with awful.layout.inc, order matters.
awful.layout.layouts = {
    awful.layout.suit.tile,
    awful.layout.suit.max,
    awful.layout.suit.magnifier,
    awful.layout.suit.floating,
    -- awful.layout.suit.max.fullscreen,
    -- awful.layout.suit.tile.left,
    -- awful.layout.suit.tile.bottom,
    -- awful.layout.suit.tile.top,
    -- awful.layout.suit.fair,
    -- awful.layout.suit.fair.horizontal,
    -- awful.layout.suit.spiral,
    -- awful.layout.suit.spiral.dwindle,
    -- awful.layout.suit.corner.nw,
    -- awful.layout.suit.corner.ne,
    -- awful.layout.suit.corner.sw,
    -- awful.layout.suit.corner.se,
}
-- }}}

-- {{{ Wibar
-- Create a wibox for each screen and add it
local taglist_buttons = gears.table.join(
	awful.button({ }, 1, function(t) charitable.select_tag(t, awful.screen.focused()) end),
	awful.button({ }, 3, function(t) charitable.toggle_tag(t, awful.screen.focused()) 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 tags = charitable.create_tags(
	{ "work", "social", "www", "email", "fun", "media", "vms", "scratch" },
	{
		awful.layout.layouts[1],
		awful.layout.layouts[1],
		awful.layout.layouts[2],
		awful.layout.layouts[3],
		awful.layout.layouts[2],
		awful.layout.layouts[2],
		awful.layout.layouts[2],
		awful.layout.layouts[4],
	}
)

awful.screen.connect_for_each_screen(function(s)
	-- Show an unselected tag when a screen is connected
	for i = 1, #tags do
		if not tags[i].selected then
			tags[i].screen = s
			tags[i]:view_only()
			break
		end
	end

    -- Create an imagebox widget which will contain an icon indicating which layout we're using.
    -- We need one layoutbox per screen.
    s.mylayoutbox = awful.widget.layoutbox(s)
    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
	s.mytaglist = awful.widget.taglist {
		screen  = s,
		filter  = awful.widget.taglist.filter.all,
		buttons = taglist_buttons,
		source = function(screen, args) return tags end,
	}

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

	-- Create the wibox
	s.mytaskbar = awful.wibar({
		position = "bottom",
		screen   = s,
		bg       = beautiful.bg_normal .. "cc",
	})

	-- Add widgets to the wibox
	s.mytaskbar:setup {
		layout  = wibox.layout.align.horizontal,
		spacing = 16,
		{
			layout = wibox.layout.fixed.horizontal,
			spacing = 16,
			s.mylayoutbox,
			s.mytaglist,
		},
		s.mytasklist,
	}
end)
-- }}}

-- {{{ Mouse bindings
root.buttons(gears.table.join(
    awful.button({ }, 3, function () mymainmenu:toggle() end),
    awful.button({ }, 4, awful.tag.viewnext),
    awful.button({ }, 5, awful.tag.viewprev)
))
-- }}}

-- {{{ Key bindings
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"}
    ),
    awful.key({ modkey,           }, "w", function () mymainmenu:show() end,
              {description = "show main menu", group = "awesome"}),


    -- 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_bydirection("right") end,
              {description = "focus the next screen", group = "screen"}),
    awful.key({ modkey, "Control" }, "k", function () awful.screen.focus_bydirection("left") 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, "Shift" }, "r", awesome.restart,
		{description = "reload awesome", group = "awesome"}
	),
	awful.key(
		{ modkey, "Shift" }, "q", awesome.quit,
		{description = "quit awesome", group = "awesome"}
	),

	awful.key(
		{ modkey,         }, "p", awful.spawn("ipass"),
		{ description = "Select password", group = "awesome" }
	),
	awful.key(
		{ modkey,         }, "o", awful.spawn("ipass-otp"),
		{ description = "Select password", 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"})
)

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,           }, "x",      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, "Shift" }, "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 numbers row
for i = 1, 8 do
	globalkeys = gears.table.join(globalkeys,
		-- View tag only.
		awful.key(
			{ modkey },
			"#" .. i + 10,
			function () charitable.select_tag(tags[i], awful.screen.focused()) end,
			{description = "view tag #"..i, group = "tag"}
		),

		-- Toggle tag display.
		awful.key(
			{ modkey, "Control" },
			"#" .. i + 10,
			function () charitable.toggle_tag(tags[i], awful.screen.focused()) end,
			{description = "toggle tag #" .. i, group = "tag"}
		),
		-- Move client to tag.

		awful.key(
			{ modkey, "Shift" },
			"#" .. i + 10,
			function ()
				if client.focus then
					local tag = 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 + 10,
			function ()
				if client.focus then
					local tag = tags[i]
					if tag then
						client.focus:toggle_tag(tag)
					end
				end
			end,
			{description = "toggle focused client on tag #" .. i, group = "tag"}
		)
	)
end

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).
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,
			opacity = 0.8,
		},
	},

	-- KDE Rules

	{ -- Remove the default desktop
		rule_any = {
			name = { "^Desktop " }
		},
		properties = {
			hidden = true,
		},
	},
	{ -- Make the KDE shell play nicely
		rule_any = {
			class = {
				"plasmashell",
			},
		},
		properties = {
			floating = true,
			border_width = 0,
			focus = false,
		},
	},
	{ -- Center KDE applets
		rule_any = {
			class = {
				"krunner",
			},
			type = {
				"_KDE_NET_WM_WINDOW_TYPE_ON_SCREEN_DISPLAY",
			},
		},
		properties = {
			floating = true,
			border_width = 0,
			placement = awful.placement.centered,
		},
	},

	{ -- Remove borders from windows where it doesn't fit (housestyles ought to be banned, tho)
		rule_any = {
			class = {
				"nextcloud",
			}
		},
		properties = {
			border_width = 0,
		},
	},

	{ -- Tag rules for www
		rule_any = {
			class = {
				"chromium",
				"firefox",
				"qutebrowser",
			},
		},
		properties = {
			tag = "www",
		},
	},

	{ -- Tag rules for email
		rule_any = {
			class = {
				"thunderbird",
				"kmail",
			},
		},
		properties = {
			tag = "email",
		},
	},

	{ -- Tag rules for fun
		rule_any = {
			class = {
				"wow.exe",
				"battle.net.exe",
				"tsmapplication.exe",
				"lutris",
				"pathofexile.exe",
			},
		},
		properties = {
			tag = "fun",
		},
	},

	{ -- Tag rules for media
		rule_any = {
			class = {
				"mpv",
			}
		},
		properties = {
			tag = "media",
		},
	},

	{ -- Wine clients need to behave
		rule_any = {
			class = {
				"wow.exe",
				"pathofexile.exe",
			},
		},
		properties = {
			floating = false,
			fullscreen = false,
		},
	},

    -- 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" } },
}
-- }}}

-- {{{ 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)

-- ensure that removing screens doesn't kill tags
tag.connect_signal("request::screen", function(t)
	t.selected = false

	for s in screen do
		if s ~= t.screen then
			t.screen = s
			return
		end
	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
	c.opacity      = 1

	-- Mouse follows focus
end)

client.connect_signal("unfocus", function(c)
	c.border_color = beautiful.border_normal
	c.opacity      = 0.8
end)
-- }}}