#################
# Launcher init #
#################

START=$(date +%s.%N)

declare -A PIDS
function async_exec() {
  $@ &
  PIDS[$!]=$@
}
function wait_for_async_execs() {
  for i in ${!PIDS[@]}
  do
    wait $i && continue || echo "ERROR: ${PIDS[$i]} exited abnormally with status $?"
  done
}

# ensure_dir_exists calls `mkdir -p` if the given path is not a directory.
# This speeds up execution time by avoiding unnecessary calls to mkdir.
#
# Usage: ensure_dir_exists <path> [<mkdir-options>]...
#
function ensure_dir_exists() {
  [ -d "$1" ] ||  mkdir -p "$@"
}

# On Fedora $SNAP is under /var and there is some magic to map it to /snap.
# # We need to handle that case and reset $SNAP
SNAP=`echo $SNAP | sed -e "s|/var/lib/snapd||g"`

needs_update=true

. $SNAP_USER_DATA/.last_revision 2>/dev/null || true
if [ "$SNAP_DESKTOP_LAST_REVISION" = "$SNAP_REVISION" ]; then
  needs_update=false
fi

# Set $REALHOME to the users real home directory
REALHOME=`getent passwd $UID | cut -d ':' -f 6`

# Set config folder to local path
export XDG_CONFIG_HOME=$SNAP_USER_DATA/.config
ensure_dir_exists $XDG_CONFIG_HOME -m 700

# If the user has modified their user-dirs settings, force an update
if [[ -f "$XDG_CONFIG_HOME/user-dirs.dirs.md5sum" ]]; then
  if [[ "$(md5sum < "$REALHOME/.config/user-dirs.dirs")" != "$(cat "$XDG_CONFIG_HOME/user-dirs.dirs.md5sum")" ||
        ( -f "$XDG_CONFIG_HOME/user-dirs.locale.md5sum" &&
          "$(md5sum < "$REALHOME/.config/user-dirs.locale")" != "$(cat "$XDG_CONFIG_HOME/user-dirs.locale.md5sum")" ) ]]; then
    needs_update=true
  fi
else
  needs_update=true
fi

if [ "$SNAP_ARCH" == "amd64" ]; then
  ARCH="x86_64-linux-gnu"
elif [ "$SNAP_ARCH" == "armhf" ]; then
  ARCH="arm-linux-gnueabihf"
elif [ "$SNAP_ARCH" == "arm64" ]; then
  ARCH="aarch64-linux-gnu"
elif [ "$SNAP_ARCH" == "ppc64el" ]; then
  ARCH="powerpc64le-linux-gnu"
else
  ARCH="$SNAP_ARCH-linux-gnu"
fi

export SNAP_LAUNCHER_ARCH_TRIPLET=$ARCH

# Don't LD_PRELOAD bindtextdomain for classic snaps
if ! grep -qs "^\s*confinement:\s*classic\s*" $SNAP/meta/snap.yaml; then
  if [ -f $SNAP/lib/bindtextdomain.so ]; then
    export LD_PRELOAD=$LD_PRELOAD:$SNAP/lib/bindtextdomain.so
  fi
fi