#!/bin/sh
#
# ~/.xinitrc
#
# Executed by startx (run your window manager from here)

# GENERIC #

# Usage: .xinitrc [window-manager] [session-type]
#  where: window-manager is one of '(xmonad openbox stumpwm awesome pekwm)
#         session-type is either "local" or "remote"; upon "" defaults to "local"

# Runs system-wide xinitrc scripts
if [ -d /etc/X11/xinit/xinitrc.d ]; then
  for f in /etc/X11/xinit/xinitrc.d/*; do
    [ -x "$f" ] && . "$f"
  done
  unset f
fi

# Set the default curson used by all WM's
xsetroot -cursor_name left_ptr

# Initialize a local desktop session (run generic helper applications)
function init_local_session() {
    # Start a user instance of systemd, which in turns starts:
    #  * xcompmgr
    #  * xscreensaver
    #  * unclutter
    #  * xbindkeys
    #  * urxvtd
    #  * emacsd
    #  * trayer *disabled* ..
    #  * udiskie
    #systemd --user & #DEPRECIATED..logind calls systemd --user automatically

    # Set a desktop background
    nitrogen --restore &
    
    # Setup system tray *DISABLED* :: whats the point of a systray if no apps use it?
    #trayer --monitor 1 --edge top --align right --expand true --width 4 --height 2 --transparent true --tint 0x000000 &
    
    # Create variable GENERAL_SCREEN which is the pid of a screen called "general"
    GENERAL_SCREEN=`screen -ls | grep general | cut -f1 -d'.' | sed 's/\W//g'`
    
    # Check to see if a general screen is already running
    if [ "x$GENERAL_SCREEN" == "x" ]; then
        screen -dmS general & 
    fi
    
    # Set the default wm to xmonad
    DEFAULT_WM=xmonad
}

# Initialize a remote desktop session (run generic helper applications)
function init_remote_session() {
    # Set desktop background
    feh --bg-scale ~/.wallback/Cocaine_Wallpaper_II_by_mdornfeld.png &
    
    # Set the default wm to xmonad
    DEFAULT_WM=stumpwm
}

# Check the second cl parameter which denotes the session-type (E.g. remote, local)
case "$2" in
    # Remote session
    remote)
	init_remote_session
	break
	;;
    # Local session or unspecified
    *)
	init_local_session
        ;;
esac

# Check the first cl parameter which denotes the window-manager to use
# Notice: in each case expression below "exec app" hands over execution to some app thus
#          ceasing execution in this script so no "break" is required
case "$1" in
    xmonad|openbox|stumpwm|awesome|pekwm)
	exec "$1"
	;;
    *)
	exec "$DEFAULT_WM"
	;;
esac