#[
  Whim - Minimal floating window manager in Nim.
  Based off of https://github.com/mackstann/tinywm.
]#

import
  std/strformat,
  std/tables,

  x11/xlib,
  x11/xutil,
  x11/x

type
  KeyMapping* = ref object
    code: char
    modifiers: cuint

  Whim = object
    dpy: PDisplay
    keys: Table[KeyMapping, string]

var
  wm = Whim()

proc grabKeys*(self: Whim) =
  let root = DefaultRootWindow(self.dpy)

  for key, command in self.keys:
    discard XGrabKey(self.dpy,
                     cast[cint](key.code),
                     key.modifiers,
                     root,
                     1,
                     GrabModeAsync,
                     GrabModeAsync)

proc makeKeyMapping(xk: XKeyEvent): KeyMapping =
  KeyMapping(code: cast[char](xk.keycode), modifiers: xk.state)

proc initX() =
  # open a connection to the display
  wm.dpy = XOpenDisplay(nil)
  wm.keys = initTable[KeyMapping, string]()

proc mainLoop() =
  var event: XEvent

  while true:
    # Get the next event from X
    discard XNextEvent(wm.dpy, event.addr)

    if event.theType == KeyPress and event.xkey.subwindow != None:
      #let mapping = makeKeyMapping(event.xkey)
      if makeKeyMapping(event.xkey) in wm.keys: # error here
        echo "key was pressed"

      discard XRaiseWindow(wm.dpy, event.xkey.subwindow)

when isMainModule:
  initX()
  mainLoop()