#!/usr/bin/env bash
################################################################################
#  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.
################################################################################

# Start/stop a Flink JobManager.
USAGE="Usage: jobmanager.sh ((start|start-foreground) [args])|stop|stop-all"

STARTSTOP=$1

if [ -z $2 ] || [[ $2 == "-D" ]]; then
    # start [-D ...]
    args=("${@:2}")
elif [ -z $3 ] || [[ $3 == "-D" ]]; then
    # legacy path: start <host> [-D ...]
    HOST=$2
    args=("${@:3}")
else
    # legacy path: start <host> <port> [-D ...]
    HOST=$2
    WEBUIPORT=$3
    args=("${@:4}")
fi

if [[ $STARTSTOP != "start" ]] && [[ $STARTSTOP != "start-foreground" ]] && [[ $STARTSTOP != "stop" ]] && [[ $STARTSTOP != "stop-all" ]]; then
  echo $USAGE
  exit 1
fi

bin=`dirname "$0"`
bin=`cd "$bin"; pwd`

. "$bin"/config.sh

ENTRYPOINT=standalonesession

if [[ $STARTSTOP == "start" ]] || [[ $STARTSTOP == "start-foreground" ]]; then
    # Add JobManager-specific JVM options
    export FLINK_ENV_JAVA_OPTS="${FLINK_ENV_JAVA_OPTS} ${FLINK_ENV_JAVA_OPTS_JM}"
    parseJmArgsAndExportLogs "${args[@]}"

    args=("--configDir" "${FLINK_CONF_DIR}" "--executionMode" "cluster" "${args[@]}")
    if [ ! -z $HOST ]; then
        args+=("--host")
        args+=("${HOST}")
    fi

    if [ ! -z $WEBUIPORT ]; then
        args+=("--webui-port")
        args+=("${WEBUIPORT}")
    fi

    if [ ! -z "${DYNAMIC_PARAMETERS}" ]; then
        args=(${DYNAMIC_PARAMETERS[@]} "${args[@]}")
    fi
fi

if [[ $STARTSTOP == "start-foreground" ]]; then
    exec "${FLINK_BIN_DIR}"/flink-console.sh $ENTRYPOINT "${args[@]}"
else
    "${FLINK_BIN_DIR}"/flink-daemon.sh $STARTSTOP $ENTRYPOINT "${args[@]}"
fi