#!/bin/sh

xdir="%%XDIR%%"
userdir="$HOME/.x-plane"
portversion="%%PORTVERSION%%"
programs="%%PROGRAMS%%"
targets="athlon-xp i586 pentium-3"

# The executables need to be run from the data directory, and need to
# write files in it. We therefore mirror the data directory hierarchy
# in $userdir, and create symlinks to the data files.

if [ "x`cat $userdir/version 2>/dev/null`" != "x$portversion" ]; then
	if [ -e $userdir ]; then
		cd $userdir || exit 1

		echo "Removing dangling symlinks from $userdir"
		find * -type l ! -exec stat -L {} \; -delete >/dev/null 2>&1

		echo "Removing obsolete configuration from $userdir"
		rm -f Resources/Preferences/*
		rm -f $userdir/cpu

		echo "Removing empty directories from $userdir"
		find -d * -type d -empty -delete
	fi

	echo "Updating hierarchy in $userdir"
	cd $xdir || exit 1

	find * -type d -exec mkdir -p "$userdir/{}" \; || exit 1
	find * -type f ! -name '*.prf' -exec ln -sf "$xdir/{}" "$userdir/{}" \; || exit 1

	for p in $programs; do
		for t in $targets; do
			if [ -e $p-$t ]; then
				rm -f $userdir/$p-$t
				cp -p $p-$t $userdir || exit 1
			fi
		done
	done

	echo "$portversion" > $userdir/version || exit 1
fi

program=`basename $0`

cd $userdir || exit 1

for t in $targets; do
	if [ -e $program-$t ]; then
		exec ./$program-$t "$@"
	fi
done

echo "$program not found. Check your X-Plane installation." >&2
exit 1