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import XMonad

import Control.Monad.Trans.Class
import Control.Monad.Reader
import XMonad.Hooks.ManageDocks (docks)
import System.Directory (getHomeDirectory)
import System.FilePath ((</>))
import XMonad.Hooks.EwmhDesktops (ewmh)
import XMonad.Hooks.ManageHelpers (isFullscreen, doFullFloat)
import XMonad.Layout.Fullscreen (fullscreenEventHook)
import System.Environment (setEnv)
import Data.Monoid
import qualified Data.Map as Map
import Text.Printf

import Rahm.Desktop.Swallow
import Rahm.Desktop.Common
import Rahm.Desktop.XMobarLog
import Rahm.Desktop.Keys
import Rahm.Desktop.Layout
import Rahm.Desktop.Logger
import Rahm.Desktop.DMenu (menuCommandString)
import Rahm.Desktop.RebindKeys
import Rahm.Desktop.Hooks.WindowChange
import Rahm.Desktop.History

import qualified XMonad as X
import qualified Rahm.Desktop.StackSet as W

main = do
  putStrLn "Welcome To RDE!"

  -- Execute some commands.
  homeDir <- getHomeDirectory
  let fp = homeDir </> ".xmonad" </> "startup"

  setEnv "SUDO_ASKPASS" "/usr/bin/ssh-askpass"
  setEnv "ROFI" menuCommandString

  xmobar <- spawnXMobar
  count <- fromIntegral . screenCount <$> openDisplay ""

  (=<<) X.xmonad $ 
    applyKeys $ withLocationChangeHook historyHook $ ewmh $ docks $  def
       { terminal    = "alacritty"
       , modMask     = mod3Mask
       , borderWidth = 2
       , keys = const mempty
       , focusedBorderColor = "#ff6c00"
       , normalBorderColor = "#404040"
       , layoutHook = myLayout
       , startupHook = spawn fp
       , manageHook = composeAll [
           isFullscreen --> doFullFloat
         , className =? "Tilda" --> doFloat
         , className =? "yakuake" --> doFloat
         , className =? "MPlayer" --> doFloat
         , title =? "Event Tester" --> doFloat
         , title =? "Floating Term" --> doCenterFloat
         , title =? "Notes" --> doCenterFloat
         , title =? "xmessage" --> doCenterFloat
         , title =? "gxmessage" --> doCenterFloat
         , title =? "Volume Control" --> doCenterFloat
         , className =? "mpv" --> doFloat
         , className =? "gnubby_ssh_prompt" --> doFloat
         ]
         -- This config uses dynamic workspaces, but I have to seed XMonad
         -- with something. However, this configuration only supports 36
         -- monitors on boot. If you need more than 36 monitors, you'll have to
         -- configure those ones after starting XMonad.
       , workspaces = map return (take count $ ['0'..'9'] ++ ['a'..'z'])
       , handleEventHook =
           composeAll [
             fullscreenEventHook,
             remapHook,
             swallowHook]
       , focusFollowsMouse = False
       , clickJustFocuses = False
       , logHook = xMobarLogHook xmobar
       }


changeHook :: Location -> Location -> X ()
changeHook l1 l2 =
  logs Info "Change %s -> %s" (show l1) (show l2)

doCenterFloat :: ManageHook
doCenterFloat =
  ask >>= \w -> doF . W.float w . centerRect . snd =<< liftX (floatLocation w)

centerRect :: W.RationalRect -> W.RationalRect
centerRect (W.RationalRect x y w h) = W.RationalRect ((1 - w) / 2) ((1 - h) / 2) w h


windowHooks :: WindowHook -> XConfig l -> XConfig l
windowHooks (Query readerT) config = do

  config {
    startupHook = do
      withWindowSet $ mapM_ (runReaderT readerT) . W.allWindows
      startupHook config,

    manageHook = mappend (Query readerT >> return (Endo id)) (manageHook config)
  }