# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

DAEMON="webui"
DESC="QFS WebUI"
PROC_NAME="python"
EXEC_PATH="/usr/bin/${PROC_NAME} /usr/share/qfs/webui/qfsstatus.py"
SVC_USER="qfs"
WORKING_DIR="/var/lib/qfs"
CONF_DIR="/usr/share/qfs/webui"
CONF_FILE="server.conf"
LOGFILE="/var/log/qfs/${DAEMON}.log"
PIDFILE="/var/run/qfs/${DAEMON}.pid"

generate_start() {

cat <<'__EOT__'
start() {
    [ -x $EXEC_PATH ] || exit $ERROR_PROGRAM_NOT_INSTALLED
    log_success_msg "Starting $DESC ($DAEMON): "

    checkstatusofproc
    status=$?
    if [ "$status" -eq "$STATUS_RUNNING" ]; then
        log_success_msg "$DESC is running"
        exit 0
    fi

    echo "Starting $DESC: "

    # Debian doesn't like us to package anything inside /var/run. We create the
    # directory here and set permissions as necessary for both debian and rpm
    mkdir -p /var/run/qfs
    chown qfs:qfs -R /var/run/qfs
    chmod 755 /var/run/qfs

    runuser -s /bin/bash $SVC_USER -c "cd $WORKING_DIR && nohup $EXEC_PATH $CONF_DIR/$CONF_FILE > $LOGFILE 2>&1 < /dev/null & "'echo $! '"> $PIDFILE"
    sleep 3

    checkstatusofproc
    RETVAL=$?
    if [ $RETVAL -eq $STATUS_RUNNING ]; then
        touch $LOCKFILE
        log_success_msg "Starting $DESC (${DAEMON}): "
    else
        log_failure_msg "Failure to start $DESC (${DAEMON}). Return value: $RETVAL"
    fi
    return $RETVAL
}
__EOT__

}

generate_stop() {

cat <<'__EOT__'
stop() {
    checkstatusofproc
    if [ "$?" = "$STATUS_RUNNING" ] ; then
        if [ -f $PIDFILE ]; then
            PID=`cat $PIDFILE`
            if [ -n $PID ]; then
                kill -TERM $PID &>/dev/null
            fi
        fi
        RETVAL=$?
    else
        RETVAL=$RETVAL_SUCCESS
    fi

    if [ $RETVAL -eq $RETVAL_SUCCESS ]; then
        rm -f $LOCKFILE $PIDFILE
        log_success_msg "Stopped ${DESC}: "
    else
        log_failure_msg "Failed to stop ${DESC}. Return value: $RETVAL"
    fi
    return $RETVAL
}

__EOT__

}