#!/usr/bin/env bash

. /etc/profile

SO_PATH="/home/smart/SmartOrganizer"
. ${SO_PATH}/lib.conf

SmartTMS_BASE_PATH="/home/smart/.tms3/repo"
SmartTMS_CONFIG_FILE="${SmartTMS_BASE_PATH}/SmartTMS_Upgrade.conf"
SmartTMS_VERSION_PATH="${SmartTMS_BASE_PATH}/versions"
SmartTMS_BACKUP_PATH="${SmartTMS_BASE_PATH}/backup"

TARGET_VERSION=${1}
DB_NAME="tms_db_s3"
DB_PASSWORD="PythA90ra5"
BACKUP_PATH="${SmartTMS_BACKUP_PATH}/${TARGET_VERSION}"
TOMCAT_HOME="/home/smart/.tms3/apache-tomcat-*"

stop_tomcat()
{
    pid=`netstat -lntp | grep :8080 | awk '{print $7}' |cut -d'/' -f1`
    if [[ ! -z ${pid} ]]; then
        kill ${pid}
        echo "TOMCAT Stopped!"
    fi
}

start_tomcat()
{
    sh ${TOMCAT_HOME}/bin/startup.sh
#    echo "TOMCAT Started!"
}

rollback_db()
{
    sqls=($(ls ${BACKUP_PATH} | grep .sql))
    num=${#sqls[@]}
    if [[ ${num} -gt 0 ]]; then
        sql=${sqls[num-1]}
        echo ">> Execute SQL ${TARGET_VERSION} ${BACKUP_PATH}/${sql}"
        mysql -uroot -p${DB_PASSWORD} ${DB_NAME} -f -s -N < ${BACKUP_PATH}/${sql}
    fi
}

rollback_war()
{
    rm -rf ${TOMCAT_HOME}/webapps/SmartTMS*
    echo "Remove current version"

    cp ${BACKUP_PATH}/*.war ${TOMCAT_HOME}/webapps/
    echo "Copy backup version to web directory"
}

if [[ -z ${TARGET_VERSION} || ! -d ${BACKUP_PATH} ]]; then
    echo "Backup version not given or not exists."
    echo "You may try these:"
    echo `ls ${SmartTMS_BACKUP_PATH}`
    exit 2
fi

stop_tomcat
sleep 10

rollback_db
sleep 2

rollback_war
sleep 4

start_tomcat

echo "Done!"