#!/bin/bash

# Copyright: 2023 Virtuozzo International GmbH

# Licensed 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.



inherit default os envinfo;
inherit_check ${engine_module_inherit} || {
    writeJSONResponseErr "result=>4031" "message=>Invalid engine module";
    kill ${MANAGE_KILL_TARGET} 2>/dev/null; exit 1; }
inherit extendperm;

DESCRIPTION="Switch engine version";
VERSION="1";
DEFAULT_ACTION="Usage";
GF_PASS_FILE="/var/lib/jelastic/glalssfish/gfpass";

function doUsage() {
    showUsageMessage;
}

function defaultSwitch(){
	stopServiceSilent ${SERVICE};
	[ "x${COMPUTE_TYPE}" == "xcartridge" -o "x${COMPUTE_TYPE}" == "xgate" ] && cartEngineSelector;
	switchEngine "$version" && writeJSONResponseOut "result=>0" "message=>Engine switched successfully" ||  writeJSONResponseErr "result=>4031" "message=>Error occured while switching engine" ;
	startServiceSilent "$SERVICE";
}

function doSetVersion(){
	if [ ! -n "$1" ]
	then
		[ "x${COMPUTE_TYPE}" == "xnodejs" ] && return 0 || { writeJSONResponseErr "result=>4099" "message=>Missing param" ; return 99;}
	fi
	local version=$1;

case ${COMPUTE_TYPE} in
	glassfish)
		[ ! -f "$GF_PASS_FILE" ] && { switchEngine "$version" && writeJSONResponseOut "result=>0" "message=>Engine switched successfully" ||  writeJSONResponseErr "result=>4031" "message=>Error occured while switching engine" ; } || {
		    defaultSwitch; 
		};
	;;
	*)
		defaultSwitch;
	;;
esac
}

function postSetVersionCallback(){
    ExtendPerm ;
}

function describeSetVersion() {
    echo "Set engine version";
}

function describeSetVersionParameters() {
    echo "<version>";
}

function describeSetVersionOptions() {
    echo "<version>: switch to version";
}