#!/usr/bin/env sh

set -eu

app_home=@PTLINUX_APP_ROOT@
install_directory=@PTLINUX_INSTALL_DIR@
python_bin="${PTLINUX_PYTHON:-python3}"

export PTLINUX_INSTALL_DIR="${install_directory}"
export PTLINUX_APP_HOME="${app_home}"

release_root=""
for candidate in "${app_home}/current" "${app_home}/previous" "${app_home}"
do
	if [ ! -d "${candidate}/ptlinux" ]
	then
		continue
	fi
	if "$python_bin" -I -c \
		'import sys; sys.path.insert(0, sys.argv[1]); import ptlinux, ptlinux.cli' \
		"${candidate}" >/dev/null 2>&1
	then
		release_root="${candidate}"
		break
	fi
done

if [ -z "${release_root}" ]
then
	printf '%s\n' "PristonTale EU Linux application files are missing or invalid: ${app_home}" >&2
	exit 1
fi

# Never let an unpacked older installer in the caller's current directory
# shadow the selected installed release. Children started by the dashboard
# inherit the same safe-path policy and exact package root.
export PYTHONSAFEPATH=1
export PYTHONPATH="${release_root}"

exec "$python_bin" -P -m ptlinux "$@"