#!/bin/bash
#
# .xsession: set basic X11 environment
#

# Background image
BACKGROUND=""

# Session applications
PROGRAMS="xconky xnm-tray"

# OS Version
OSVERSION="`cut -d . -f 1 /etc/debian_version`"

# Hostname
HOSTNAME="`cat /etc/hostname`"

# Output
# Example: OUTPUT="VGA-1"
OUTPUT=""

# Custom config
if [ -e "$HOME/.custom/xsession" ]; then
  . $HOME/.custom/xsession
fi

# Set output display if defined in custom configuration
if [ ! -z "$OUTPUT" ] && xrandr | grep -q "^$OUTPUT connected"; then
  # Disable all other outputs
  for device in `xrandr | grep " connected " | cut -d ' ' -f 1 | xargs`; do
    if [ "$device" != "$OUTPUT" ]; then
      xrandr --output $device --off
    fi
  done

  # Turn on the desired device
  xrandr --output $OUTPUT --auto
fi

# Start xscreensaver
#if [ -e "/usr/bin/xscreensaver" ]; then
#  xscreensaver -no-splash &
#fi

# Set background
if [ "$BACKGROUND" = "all" ]; then
  feh --bg-scale --randomize $HOME/.config/themes/backgrounds/*
elif [ ! -z "$BACKGROUND" ] && [ "$BACKGROUND" != "unset" ]; then
  #Esetroot -scale $HOME/.config/themes/backgrounds/$BACKGROUND
  feh --bg-scale $HOME/.config/themes/backgrounds/$BACKGROUND
elif [ "$BACKGROUND" != "unset" ]; then
  #xsetroot -solid black
  xsetroot -solid '#1C1C1C'
fi

# See https://wiki.archlinux.org/index.php/Compton
if which compton > /dev/null 2>&1; then
  if [ -e "$HOME/.config/compton.conf" ]; then
    compton --config $HOME/.config/compton.conf -b
  else
    compton -b
  fi
fi

# See https://wiki.archlinux.org/index.php/Xcompmgr
if which xcompmgr > /dev/null 2>&1; then
  xcompmgr -c &
fi

# Set window manager
if [ -z "$WINDOW_MANAGER" ]; then
  WINDOW_MANAGER='awesome'
fi

# Custom SSH_ASKPASS config
# See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=606934
#export SSH_ASKPASS="/usr/bin/ssh-askpass-fullscreen"
#export SSH_ASKPASS="/usr/lib/pssh/pssh-askpass"
#export SSH_ASKPASS=""
export SSH_ASKPASS="/usr/lib/ssh/x11-ssh-askpass"

# SSH and GPG Agents
#if [ -x "$HOME/apps/utils-ssh/ssh-agent-loadkeys" ]; then
#  . $HOME/apps/utils-ssh/ssh-agent-loadkeys
#fi

# Make sure to load the profile
#
# Use SETCDPATH workaround as there might be some weird bug
# somewhere killing the X11 session if CDPATH is set.
SETCDPATH=false && . $HOME/.profile

# Additional applications depending on the machine type
#if laptop-detect; then
#  PROGRAMS="$PROGRAMS xwicd"
#else
#  PROGRAMS="$PROGRAMS"
#fi

# Start session applications
for program in $PROGRAMS; do
  if which $program > /dev/null 2>&1; then
    $program &
  fi
done

# Apply default keyboard configuration
if [ -f "$HOME/.Xmodmap" ]; then
  xmodmap $HOME/.Xmodmap
fi

# Apply custom keyboard configuration
if [ -f "$HOME/.Xmodmaps/$HOSTNAME" ]; then
  xmodmap $HOME/.Xmodmaps/$HOSTNAME

  # Why xmodmap has to run twice to some changes take place?
  # https://faq.i3wm.org/question/558/xmodmap-loading/
  # https://bugs.launchpad.net/ubuntu/+source/gdm/+bug/700309
  xmodmap $HOME/.Xmodmaps/$HOSTNAME
fi

# Fix mumble configuration, which varies depending on machine audio
if [ -f "$HOME/.config/Mumble/Mumble-$HOSTNAME.conf" ]; then
  (
    cd $HOME/.config/Mumble
    mv Mumble.conf Mumble-$HOSTNAME.conf.backup
    ln -s Mumble-$HOSTNAME.conf Mumble.conf
  )
fi

# Clipboard management
# See http://mutelight.org/subtleties-of-the-x-clipboard
#if which autocutsel > /dev/null 2>&1; then
#  autocutsel -fork &
#  autocutsel -selection PRIMARY -fork &
#fi
if which parcellite > /dev/null 2>&1; then
  parcellite -n &
fi

# Keyring
if [ "$OSVERSION" != "6" ] && which gnome-keyring-daemon > /dev/null 2>&1; then
  # See https://bugzilla.redhat.com/show_bug.cgi?id=783568
  #     https://bugs.launchpad.net/ubuntu/+source/gnome-keyring/+bug/932177
  #     http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=653011
  #     https://bugzilla.gnome.org/show_bug.cgi?id=660240
  #unset GNOME_KEYRING_PID
  #unset GNOME_KEYRING_CONTROL
  #eval $(gnome-keyring-daemon --start --components=pkcs11,gpg,secrets)
  #eval $(gnome-keyring-daemon --start --components=pkcs11,secrets)
  true
fi

# Polkit agent
# See https://leap.se/en/docs/client/known-issues#no-polkit-agent-available-error
if [ -e "/usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1" ]; then
  /usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1 &
fi

# Make sure to finish all background processes
#trap 'kill $(jobs -p)' EXIT

# Pulse audio
if [ "$OSVERSION" = "9" ] && which pulseaudio > /dev/null 2>&1; then
  # Works on stretch backwards, but not on buster onwards
  pulseaudio --start
elif which start-pulseaudio-x11 > /dev/null 2>&1; then
  start-pulseaudio-x11
fi

# Start spice-vdagent if needed
#if [ -e "/dev/virtio-ports/com.redhat.spice.0" ] && [ -x "/usr/bin/spice-vdagent" ]; then
#  spice-vdagent
#fi

# Check for unclutter
if [ -x "/usr/bin/unclutter" ]; then
  /usr/bin/unclutter &
fi

# Kill any previous powerline-awesome instance
# A window manager like Awesome may later start a new instance so it can appear at the wibar
kill `pidof -x /usr/share/powerline/bindings/awesome/powerline-awesome.py` > /dev/null 2>&1

# Java config
# See http://stackoverflow.com/questions/29494915/android-sdk-on-debian-linux-has-blank-windows
#     https://wiki.archlinux.org/index.php/Java
export _JAVA_AWT_WM_NONREPARENTING=1
export AWT_TOOLKIT=MToolkit

# Next window config (keyringer)
export XDOTOOL_NEXT_WINDOW="Super_L+Tab"

# Start window manager
if [ "$OSVERSION" = "7" ] || [ "$START_WINDOW_MANAGER" = "true" ]; then
  $WINDOW_MANAGER
fi

# Post processing
if [ -e "$HOME/.custom/xsession-ready" ]; then
  . $HOME/.custom/xsession-ready
fi

# Run startup scripts
#if [ -d "$HOME/.custom/xsessionrc.d" ];
#  run-parts $HOME/.custom/xsessionrc.d
#fi