#!/bin/sh

# To run from Internet: 
#     sudo sh -c "$(curl -s https://apps.control2net.com/apt/install-dingo-lorawan-server)"

echo "Check Node.js..."
nodejs=$(nodejs --version 2>&1 | grep v)
if [ -z "$nodejs" ]; then
    #echo "Install Node.js first. Instructions:"
    #echo "    sudo su"
    #echo "    curl -fsSL https://deb.nodesource.com/setup_16.x | bash -"
    #echo "    apt-get install -y nodejs"
    echo "Install Node.js 16.x"
    curl -fsSL https://deb.nodesource.com/setup_16.x | bash -
    apt-get install -y nodejs
    #exit 0
else
    nv=$(echo $nodejs | tr -d "v" | tr -d ".")
    if [ "$nv" -lt "16150" ]; then
        echo "Install Node.js 16.x"
        curl -fsSL https://deb.nodesource.com/setup_16.x | bash -
        apt-get install -y nodejs
    fi
fi

FILE="/opt/dingo-lorawan-server/dingo-lorawan-server.js"
if [ -f "$FILE" ]; then
    echo "DINGO LORAWAN SERVER IS ALREADY INSTALLED."
    echo "Doing upgrade..."
    echo "Stop service..."
    sudo systemctl stop dingo-lorawan-server.service
    echo "Take backup..."
    DIRECTORYBACKUP="/opt/GoIoT/backup"
    if [ ! -d "$DIRECTORYBACKUP" ]; then
        mkdir /opt/GoIoT/backup
        sudo chmod 0755 /opt/GoIoT/backup
    fi
    DIRECTORYTMPBACKUP="/opt/GoIoT/tmpdingolorawanserver"
    if [ ! -d "$DIRECTORYTMPBACKUP" ]; then
        mkdir /opt/GoIoT/tmpdingolorawanserver
        sudo chmod 0755 /opt/GoIoT/tmpdingolorawanserver
    fi

    echo "Uninstall obsolete modules..."
    cd /opt/dingo-lorawan-server
    npm uninstall @goiot/goiot

    cp -p /opt/dingo-lorawan-server/server.json /opt/GoIoT/tmpdingolorawanserver/
    cp -p /opt/dingo-lorawan-server/server.json /opt/GoIoT/backup/server.json.`date +%Y%m%d%H%M%S`
    cp -p /opt/dingo-lorawan-server/db/dingo-lorawan-server.db /opt/GoIoT/tmpdingolorawanserver/
    cp -p /opt/dingo-lorawan-server/db/dingo-lorawan-server.db /opt/GoIoT/backup/dingo-lorawan-server.db.`date +%Y%m%d%H%M%S`
    echo "Upgrade DINGO LoRaWAN Server..."
    cd /opt/GoIoT/tmpdingolorawanserver
    wget https://apps.control2net.com/apt/lorawan/dingo-lorawan-server-1.0.0.zip
    sudo unzip -o -q dingo-lorawan-server-1.0.0.zip -d /opt
    echo "Return the files that were backed-up..."
    cp -p /opt/GoIoT/tmpdingolorawanserver/server.json /opt/dingo-lorawan-server/
    cp -p /opt/GoIoT/tmpdingolorawanserver/dingo-lorawan-server.db /opt/dingo-lorawan-server/db/
    echo "Install modules..."
    cd /opt/dingo-lorawan-server
    npm install node-machine-id
    npm install enum
    npm install neo-blessed
    npm install blessed
    npm install blessed-contrib
    npm i --save gps-time
    npm install json-multi-parse

    echo "Delete old obfusucated files on wrong location by Danjal"
    rm /opt/dingo-lorawan-server/dev-time.js
    rm /opt/dingo-lorawan-server/dev-status.js
    rm /opt/dingo-lorawan-server/end-device_trans_params.js
    rm /opt/dingo-lorawan-server/link-check.js
    rm /opt/dingo-lorawan-server/link-adr.js
    rm /opt/dingo-lorawan-server/service_adr.js
    rm /opt/dingo-lorawan-server/WorkStuff.js
    rm /opt/dingo-lorawan-server/downlinks.js
    rm /opt/dingo-lorawan-server/downlink.js
    rm /opt/dingo-lorawan-server/entity.js
    rm /opt/dingo-lorawan-server/get_uid.js

    echo "Delete obsolete stuff"
    rm -r /opt/dingo-lorawan-server/node_modules/@goiot/

    echo "Restart DINGO-Stack will take care of LoRaWAN Server db-updates if any"
    sudo systemctl restart dingo.service

    # 221220 TJ, Commented out. LoraWan server has to be manually restarted
    # This is done to be sure all DB-updates from the command above are finished
    #echo "Start service..."
    #sudo systemctl restart dingo-lorawan-server.service

    echo "Clean up..."
    sudo rm -r /opt/GoIoT/tmpdingolorawanserver
    #exit 0
else
    DIRECTORYTMPBACKUP="/opt/GoIoT/tmpdingolorawanserver"
    if [ ! -d "$DIRECTORYTMPBACKUP" ]; then
        mkdir /opt/GoIoT/tmpdingolorawanserver
        sudo chmod 0755 /opt/GoIoT/tmpdingolorawanserver
    fi

    echo "Installing DINGO LoRaWAN Server..."
    cd /opt/GoIoT/tmpdingolorawanserver
    wget https://apps.control2net.com/apt/lorawan/dingo-lorawan-server-1.0.0.zip
    sudo unzip -q dingo-lorawan-server-1.0.0.zip -d /opt

    #echo "Setup shortcuts..."
    #cd /opt/dingo-lorawan-server/bin
    #sudo cp -p dingo-lorawan-server* /opt/GoIoT/DinGo/bin

    echo "Setup service..."
    cd /opt/dingo-lorawan-server/systemd
    sudo cp -p dingo-lorawan-server.service /lib/systemd/system
    sudo systemctl daemon-reload

    echo "Install modules..."
    cd /opt/dingo-lorawan-server
    npm install node-machine-id
    npm install enum
    npm install neo-blessed
    npm install blessed
    npm install blessed-contrib
    npm i --save gps-time
    npm install json-multi-parse

    echo "Start service...."
    sudo systemctl enable dingo-lorawan-server.service
    sudo systemctl restart dingo-lorawan-server.service

    echo "Clean up..."
    sudo rm -r /opt/GoIoT/tmpdingolorawanserver

    echo "Delete obsolete stuff"
    rm -r /opt/dingo-lorawan-server/node_modules/@goiot/
fi

sudo grep -q -F 'LORAWAN_SERVER_DB=' /etc/profile.d/dingo.sh || sudo sed -i -e '$i \# Refers to the DINGO LORAWAN SERVER Database location.\nexport LORAWAN_SERVER_DB="/opt/dingo-lorawan-server/db/"\n' /etc/profile.d/dingo.sh
sudo grep -q -F 'LORAWAN_SERVER_HOME=' /etc/profile.d/dingo.sh || sudo sed -i -e '$i \# Refers to the DINGO LORAWAN SERVER home directory.\nexport LORAWAN_SERVER_HOME="/opt/dingo-lorawan-server/"\n' /etc/profile.d/dingo.sh
sudo grep -q -F 'LORAWAN_SERVER_SERVICE=' /etc/profile.d/dingo.sh || sudo sed -i -e '$i \# Refers to the service that controls the DINGO LORAWAN SERVER\nexport LORAWAN_SERVER_SERVICE="dingo-lorawan-server.service"\n' /etc/profile.d/dingo.sh

echo "Finished."

echo "Use these commands to control the service:"
echo " sudo systemctl status dingo-lorawan-server.service   (show service status)"
echo " sudo systemctl start dingo-lorawan-server.service    (start the service)"
echo " sudo systemctl stop dingo-lorawan-server.service     (stop the service)"
echo " sudo systemctl restart dingo-lorawan-server.service  (restart the service)"
echo " sudo systemctl enable dingo-lorawan-server.service   (service starts after reboot)"
echo " sudo systemctl disable dingo-lorawan-server.service  (service does not start after reboot)"
echo " cd /opt/dingo-lorawan-server && sudo node dingo-lorawan-server.js     (start server directly, not as service)"
echo " journalctl -f -u dingo-lorawan-server.service                         (show service log)"