#!/bin/bash

echo "\
===================================================
 MiaozhenProbe Installation
===================================================
"

# 脚本所在目录 绝对路径
ROOT_PATH="/home/smart/SmartOrganizer"
. ${ROOT_PATH}/lib.conf

PACKAGE_PATH="/home/Miaozhen"
PACKAGE_NAME="MiaozhenProbe"
SERVICE_NAME="MiaozhenProbeService"


CURRENT_VERSION=""
TARGET_VERSION="${1}"

if [[ -z ${TARGET_VERSION} ]]; then
    echo "Argument: TARGET_VERSION is needed!"
    exit 2
fi

#version_compare()
#{
#    source=(${1//./ })
#    target=(${2//./ })
#    for ((i=0; i<${#source[@]}; i++)); do
#        if [[ ${source[i]} == ${target[i]} ]]; then
#            continue
#        fi
#
#        if [[ ${source[i]} -lt ${target[i]} ]]; then
#            echo -1
#            return
#        elif [[ ${source[i]} -gt ${target[i]} ]]; then
#            echo 1
#            return
#        fi
#    done
#    echo 0
#}

#PACKAGE_URL="http://axis-config.oss-cn-beijing.aliyuncs.com/MiaozhenProbe/MiaozhenProbe.jar"

# Create working path
#echo "Create working path ${PACKAGE_PATH}"

#mkdir -p ${PACKAGE_PATH}
pushd ${PACKAGE_PATH} > /dev/null

if [[ -f ".version" ]]; then
    CURRENT_VERSION="$(cat .version)"
fi

if [[ -n ${CURRENT_VERSION} ]]; then
    echo "current_version:"${CURRENT_VERSION}" target_version:"${TARGET_VERSION}
    if [[ $(version_compare ${CURRENT_VERSION} ${TARGET_VERSION}) != -1 ]]; then
        echo "No upgrade required"
        popd > /dev/null
        exit 2
    fi
fi

echo "Upgrade start >>>"

# Download
#echo "Downloading [ MiaozhenProbe.jar ] from [ ${PACKAGE_URL} ] ..."
#wget -q ${PACKAGE_URL} -O ./${PACKAGE_NAME}.jar
#echo "Download ... successed!"
\cp -r ${PACKAGE_PATH}/repo/last/. ${PACKAGE_PATH}
chmod og+x ${PACKAGE_NAME}.jar
echo "USE_START_STOP_DAEMON=false" > ${PACKAGE_NAME}.conf

if [[ $(getSystemVersion ) -eq 6 ]]; then

    # Add to system service and auto startup
    chkconfig ${SERVICE_NAME} off
    chkconfig --del ${SERVICE_NAME}
    rm -f /etc/init.d/${SERVICE_NAME}

    echo "Register to system service ... successed!"
    ln -s /home/Miaozhen/${PACKAGE_NAME}.jar /etc/init.d/${SERVICE_NAME}
    chkconfig --add ${SERVICE_NAME}
    chkconfig ${SERVICE_NAME} on

    echo "Register to auto start ... successed!"
    # startup
    echo "Start service ... successed!"
    # service ${SERVICE_NAME} restart

    # set self-starting
    netstat -anp | grep ${SERVICE_NAME} &> /dev/null
    if [[ $? -ne 0 ]]; then
        cat > ${PACKAGE_PATH}/startup.sh <<EOF
export JAVA_HOME=/opt/soft/java
export PATH=$JAVA_HOME/bin/:$PATH
nohup java -jar ${PACKAGE_PATH}/{PACKAGE_NAME}.jar > /dev/null 2>&1 &
chmod 777 /home/Miaozhen/logs/*.log

EOF
        chmod og+x ${PACKAGE_PATH}/startup.sh
        echo "sh /home/Miaozhen/startup.sh" >> /etc/rc.local
    fi

else

# Add to system service and auto startup
    systemctl stop ${SERVICE_NAME}
    systemctl disable ${SERVICE_NAME}

    cat > "/usr/lib/systemd/system/${SERVICE_NAME}.service" <<EOF
#!/bin/sh
[Unit]
Description=${SERVICE_NAME}
After=syslog.target network.target remote-fs.target nss-lookup.target
[Service]
Type=forking
ExecStart=${PACKAGE_PATH}/${SERVICE_NAME}-start.sh
ExecStop=${PACKAGE_PATH}/${SERVICE_NAME}-stop.sh
PrivateTmp=true
[Install]
WantedBy=multi-user.target
EOF
    cat > ${PACKAGE_PATH}/${SERVICE_NAME}-start.sh <<EOF
#!/bin/sh
export JAVA_HOME=/opt/soft/java
export PATH=$JAVA_HOME/bin:$PATH
nohup java -jar ${PACKAGE_PATH}/${PACKAGE_NAME}.jar > /dev/null 2>&1 &
echo $! > /var/run/"${SERVICE_NAME}".pid
EOF
    cat > ${PACKAGE_PATH}/${SERVICE_NAME}-stop.sh <<EOF
#!/bin/sh
PID=$(cat /var/run/"${SERVICE_NAME}".pid)
kill -9 $PID
EOF

    chmod +x ${PACKAGE_PATH}/${SERVICE_NAME}-start.sh
    chmod +x ${PACKAGE_PATH}/${SERVICE_NAME}-stop.sh

    systemctl enable ${SERVICE_NAME}
    systemctl start ${SERVICE_NAME}

    echo "Register to auto start ... successed!"
    # startup
    echo "Start service ... successed!"
    # service ${SERVICE_NAME} restart

fi

# export version infomation
echo "${1}" > .version
echo "Done!"

popd > /dev/null