#!/bin/sh

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

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 -sL https://deb.nodesource.com/setup_10.x | bash -"
    echo "    apt-get install -y nodejs"
    exit 0
fi

DIRECTORY="/usr/lib/node_modules/lorawangateway"
if [ ! -d "$DIRECTORY" ]; then
    echo "..."
else
    echo "Take backup..."
    cp -p /usr/lib/node_modules/lorawangateway/sensors.json /usr/lib/node_modules/lorawangateway/sensors.`date +%Y%m%d%H%M%S`
    DIRECTORYBACKUP="/opt/GoIoT/backup"
    if [ ! -d "$DIRECTORYBACKUP" ]; then
        mkdir /opt/GoIoT/backup
        sudo chmod 0755 /opt/GoIoT/backup
    fi
    DIRECTORYTMPBACKUP="/opt/GoIoT/tmplorawangatewaybackup"
    if [ ! -d "$DIRECTORYTMPBACKUP" ]; then
        mkdir /opt/GoIoT/tmplorawangatewaybackup
        sudo chmod 0755 /opt/GoIoT/tmplorawangatewaybackup
    fi
    cp -p /usr/lib/node_modules/lorawangateway/sensors.json /opt/GoIoT/backup/sensors.`date +%Y%m%d%H%M%S`
    cp -p /usr/lib/node_modules/lorawangateway/sensors.json /opt/GoIoT/tmplorawangatewaybackup/
fi

echo "Install LoRaWAN Gateway from Internet..."
sudo npm install -g http://apps.control2net.com/apt/lorawan/lorawangateway-1.0.0.tgz
sudo chmod -R 755 /usr/lib/node_modules/lorawangateway
#sudo chmod -R 644 /usr/lib/node_modules/lorawangateway
#sudo chmod -R +X /usr/lib/node_modules/lorawangateway/
DIRECTORYTMPBACKUP="/opt/GoIoT/tmplorawangatewaybackup"
if [ -d "$DIRECTORYTMPBACKUP" ]; then
    cd /opt/GoIoT/tmplorawangatewaybackup
    sudo cp -p sensors.json /usr/lib/node_modules/lorawangateway/
    sudo rm -r /opt/GoIoT/tmplorawangatewaybackup
fi
echo "Setup service..."
cd /usr/lib/node_modules/lorawangateway/systemd
sudo cp -p lorawan-gateway.service /lib/systemd/system
sudo systemctl daemon-reload
echo "Copy scripts..."
cd /usr/lib/node_modules/lorawangateway/bin
sudo chmod +x lorawan* 
sudo cp -p lorawan* /opt/GoIoT/DinGo/bin
echo "Start service...."
sudo systemctl enable lorawan-gateway.service
sudo systemctl restart lorawan-gateway.service
echo "Finished."
echo "Use these commands to control the service:"
echo "    lorawan-gateway-status   (show service status)"
echo "    lorawan-gateway-start    (start the service)"
echo "    lorawan-gateway-stop     (stop the service)"
echo "    lorawan-gateway-restart  (restart the service)"
echo "    lorawan-gateway-enable   (service starts after reboot)"
echo "    lorawan-gateway-disable  (service does not start after reboot)"
echo "    lorawan-gateway          (start gateway directly, not as service)"
echo "    journalctl -f -u lorawan-gateway.service          (show real-time log)"