#!/bin/sh       


if [ "$NODE_PATH" = "" ]; then
    NODE_PATH=`npm -g root`
    echo "NODE_PATH USED: " $NODE_PATH

else
    echo "NODE_PATH FOUND: " $NODE_PATH
fi


echo "Installing..."

# Configure LR service script

DISTRO=`cat /etc/*release | grep DISTRIB_RELEASE | cut -d "=" -f2`
echo "--> OS Distribution: " $DISTRO

service=`pidof systemd > /dev/null && echo "systemd" || echo "init.d"`
echo "--> OS Service Manager: " $service

if [ "$service" = "systemd" ];
then

    cp $NODE_PATH/@mdslab/iotronic-lightning-rod/etc/systemd/system/s4t-lightning-rod.service /etc/systemd/system/lightning-rod.service
    sed -i "s|Environment=\"LIGHTNINGROD_HOME=\"|Environment=\"LIGHTNINGROD_HOME=$NODE_PATH/@mdslab/iotronic-lightning-rod\"|g" /etc/systemd/system/lightning-rod.service
    chmod +x /etc/systemd/system/lightning-rod.service
    systemctl daemon-reload

else

    if [ "$DISTRO" = "14.04" ]; then

        chmod +x $NODE_PATH/@mdslab/iotronic-lightning-rod/lr-server.js
        cp $NODE_PATH/@mdslab/iotronic-lightning-rod/etc/init.d/s4t-lightning-rod_ubu14 /etc/init.d/lightning-rod
        chmod +x /etc/init.d/lightning-rod

    else
        cp $NODE_PATH/@mdslab/iotronic-lightning-rod/etc/init.d/s4t-lightning-rod_generic /etc/init.d/lightning-rod
        chmod +x /etc/init.d/lightning-rod
    fi

fi






# External packages instalaltion
/usr/bin/npm install -g --unsafe https://github.com/PlayNetwork/node-statvfs/tarball/v3.0.0
echo "--> 3rd-party dependencies installed."

IOTRONIC_HOME="/var/lib/iotronic"

if [ -d "$IOTRONIC_HOME" ]; then

    rm_check=
    echo -n "Do you want to keep Lightning-rod configuration (in /var/lib/iotronic) ? (yes/no) "
    read rm_check

    if [ "$rm_check" = "yes" ]; then

        echo "--> Lightning-rod configuration is save!"

    fi

fi

if [ "$rm_check" = "no" ] || [ ! -d "$IOTRONIC_HOME" ]; then

    mkdir -p /var/lib/iotronic/
    cd /var/lib/iotronic/ && mkdir plugins && mkdir drivers

    cp $NODE_PATH/@mdslab/iotronic-lightning-rod/utils/templates/settings.example.json /var/lib/iotronic/settings.json
    cp $NODE_PATH/@mdslab/iotronic-lightning-rod/modules/plugins-manager/plugins.example.json /var/lib/iotronic/plugins/plugins.json
    cp $NODE_PATH/@mdslab/iotronic-lightning-rod/modules/drivers-manager/drivers.example.json /var/lib/iotronic/drivers/drivers.json

    chmod +x $NODE_PATH/@mdslab/iotronic-lightning-rod/lr-server.js

    mkdir -p /var/log/iotronic/plugins
    touch /var/log/iotronic/lightning-rod.log

fi





IOTRONIC_AUTH="/etc/iotronic"

if [ -d "$IOTRONIC_AUTH" ]; 
then


    LR_INSTALLED_VERSION=`cat /var/lib/iotronic/patches/package.json | grep \"version\" | awk '{print $2}' | tr -d , | tr -d \"`
    logger -t DEBUG "Authentication settings file already present (LR v$LR_INSTALLED_VERSION)"

    rm_check=
    echo -n "Do you want to keep Lightning-rod authentication settings (in /etc/iotronic) ? (yes/no) "
    read rm_check

    if [ "$rm_check" = "yes" ]; then

        echo "--> Lightning-rod authentication settings are save!"


        if [ "$LR_INSTALLED_VERSION" == "2.2.0" ]; then
                echo "--> APPLY THE 2.3.0 PATCH"
                patch /etc/iotronic/authentication.json $NODE_PATH/@mdslab/iotronic-lightning-rod/utils/patches/authentication.patch
        fi


    elif [ "$rm_check" = "no" ]; then

        mkdir -p /etc/iotronic/
        cp $NODE_PATH/@mdslab/iotronic-lightning-rod/utils/templates/authentication.example.json /etc/iotronic/authentication.json

    fi
    
else
    
    mkdir -p /etc/iotronic/
    cp $NODE_PATH/@mdslab/iotronic-lightning-rod/utils/templates/authentication.example.json /etc/iotronic/authentication.json
        
fi








echo "Configuring..."

# Configure logrotate
cp $NODE_PATH/@mdslab/iotronic-lightning-rod/etc/logrotate.d/lightning-rod.log /etc/logrotate.d/lightning-rod.log


# Set Environment variables
if grep -Fq "IOTRONIC_HOME" /etc/environment
then
    # if found
    echo "IOTRONIC_HOME env var already set."
else
    # if not found
    echo "Setting IOTRONIC_HOME env var."
    echo "IOTRONIC_HOME=/var/lib/iotronic" >> /etc/environment
    . /etc/environment
fi

if grep -Fq "LIGHTNINGROD_HOME" /etc/environment
then
    # if found
    echo "LIGHTNINGROD_HOME env var already set."
else
    # if not found
    echo "Setting LIGHTNINGROD_HOME env var."
    echo "LIGHTNINGROD_HOME=$NODE_PATH/@mdslab/iotronic-lightning-rod" >> /etc/environment
    . /etc/environment
fi

if grep -Fq "NODE_TLS_REJECT_UNAUTHORIZED" /etc/environment
then
    # if found
    echo "NODE_TLS_REJECT_UNAUTHORIZED env var already set."
else
    # if not found
    echo "Setting NODE_TLS_REJECT_UNAUTHORIZED env var."
    echo "NODE_TLS_REJECT_UNAUTHORIZED=0" >> /etc/environment
    . /etc/environment
fi


# WSTUN setup: set bin path
sed -i "s|\"bin\":.*|\"bin\": \"$NODE_PATH/@mdslab/wstun/bin/wstun.js\"|g" $IOTRONIC_AUTH/authentication.json


echo "----------------------------------------------------------------------------------------------------------------"
echo "After the installation execute lr_configure script in order to complete the Lightning-rod configuration!"
echo "--> $NODE_PATH/@mdslab/iotronic-lightning-rod/scripts/lr_configure"
echo "--> Usage: ./lr_configure -i"
chmod +x $NODE_PATH/@mdslab/iotronic-lightning-rod/scripts/lr_configure
echo "Bye!"
echo "----------------------------------------------------------------------------------------------------------------"