#!/bin/bash

RELEASE_DIR=`pwd`
LOCK=$(mktemp -d /tmp/condor-lock-XXXXXX)
LOCAL_DIR=${RELEASE_DIR}/local
LOCAL_CONFIG_DIR=${LOCAL_DIR}/config.d
USER_ID=`id -u`
GROUP_ID=`id -g`
CONDOR_IDS=${USER_ID}.${GROUP_ID}

if [[ $USER_ID -eq 0 || $GROUP_ID -eq 0 ]]; then
    echo "Please visit https://htcondor.readthedocs.io/en/latest/getting-htcondor for instructions on installing HTCondor as root."
    exit 1
fi

if [[ ! -x ${RELEASE_DIR}/sbin/condor_master ]]; then
    echo "This directory doesn't have sbin/condor_master; did you unpack the tarball?"
    exit 1
fi

if [[ ! -e ${RELEASE_DIR}/etc/examples/condor_config.tarball ]]; then
    echo "Can't find template config file etc/examples/condor_config.tarball, aborting."
    exit 1
fi

if [[ -e ${RELEASE_DIR}/etc/condor_config ]]; then
    echo "Refusing to overwrite existing etc/condor_config file, aborting."
    exit 1
fi

if [[ -e ${LOCAL_CONFIG_DIR}/00-personal-condor ]]; then
    echo "Refusing to overwrite existing local/config.d/00-personal-condor file, aborting."
    exit 1
fi

if [[ -e ${RELEASE_DIR}/condor.sh ]]; then
    echo "Refusing to overwrite existing condor.sh, aborting."
    exit 1
fi

mkdir -p "${LOCAL_DIR}"
mkdir -p "${LOCAL_DIR}/log"
mkdir -p "${LOCAL_DIR}/spool"
mkdir -p "${LOCAL_DIR}/execute"
mkdir -p "${LOCAL_DIR}/passwords.d"
mkdir -p "${LOCAL_DIR}/tokens.d"
mkdir -p "${LOCAL_CONFIG_DIR}"
mkdir -p "${RELEASE_DIR}/etc"

if [[ ! -d "${LOCAL_DIR}" ||
      ! -d "${LOCAL_DIR}/log" ||
      ! -d "${LOCAL_DIR}/spool" ||
      ! -d "${LOCAL_DIR}/execute" ||
      ! -d "${LOCAL_CONFIG_DIR}" ||
      ! -d "${RELEASE_DIR}/etc" ]]; then
    echo "Failed to create a subdirectory, aborting."
    exit 1
fi

sed -e "s|^RELEASE_DIR *=.*|RELEASE_DIR = ${RELEASE_DIR}|" ${RELEASE_DIR}/etc/examples/condor_config.tarball >${RELEASE_DIR}/etc/condor_config

(
cat <<EOF

LOCK=${LOCK}
CONDOR_IDS=${CONDOR_IDS}
EOF
) >> "${RELEASE_DIR}/etc/condor_config"

#
# Because user-based authentication includes the hostname as part of the
# identity, we have to set CONDOR_HOST back to the hostname for condor_off
# (or other administrative commands) to work.
#
(
cat <<EOF
use security: user_based
use role: personal
CONDOR_HOST = \$(FULL_HOSTNAME)

#
# Ideally, we'd be able to distinguish between the tokens to which the HTCondor
# daemons have access and those which you-the-user have access (via the tools),
# but we can't at the moment, so we choose not to share your tokens by default.
#
SEC_TOKEN_SYSTEM_DIRECTORY = \$(LOCAL_DIR)/tokens.d
SEC_TOKEN_DIRECTORY = \$(SEC_TOKEN_SYSTEM_DIRECTORY)
SEC_PASSWORD_DIRECTORY = \$(LOCAL_DIR)/passwords.d
EOF
) > "${LOCAL_CONFIG_DIR}/00-personal-condor"

(
cat <<EOF
CONDOR_CONFIG=${RELEASE_DIR}/etc/condor_config
export CONDOR_CONFIG

PATH=${RELEASE_DIR}/bin:${RELEASE_DIR}/sbin:\$PATH
export PATH

if [ "X" != "X\${PYTHONPATH-}" ]; then
    PYTHONPATH=${RELEASE_DIR}/lib/python3:\$PYTHONPATH
else
    PYTHONPATH=${RELEASE_DIR}/lib/python3
fi
export PYTHONPATH
EOF
) > "${RELEASE_DIR}/condor.sh"
