#!/usr/bin/env bash
# install yunkong2 on Raspbian 9/Debian stretch with SystemD
# Copyright (c) 2017, keynight yunkong2.net/forum

# install tools for nodels install
sudo apt install -y apt-transport-https curl

# install NodeJS 8.x
curl -sL https://deb.nodesource.com/setup_8.x | sudo -E bash -

# add start script /etc/init.d/yunkong2
echo "############### add start script /etc/init.d/yunkong2  ###############"

sudo cat <<- EOF > /etc/init.d/yunkong2
#!/bin/bash

### BEGIN INIT INFO
# Provides:          yunkong2
# Required-Start:    \$network \$local_fs \$remote_fs
# Required-Stop:     \$network \$local_fs \$remote_fs
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: starts yunkong2
# Description:       starts yunkong2
### END INIT INFO

source /etc/profile
source /etc/skel/.bashrc
source /etc/skel/.profile

(( EUID )) && echo .You need to have root privileges.. && exit 1
PIDF=/opt/yunkong2/node_modules/yunkong2.js-controller/lib/yunkong2.pid
#NODECMD=/usr/local/bin/node
NODECMD=/usr/bin/node
yunkong2CMD=/opt/yunkong2/node_modules/yunkong2.js-controller/yunkong2.js
RETVAL=0
yunkong2USER=yunkong2

# Starting yunkong2
export yunkong2_HOME=/opt/yunkong2
echo -n "Starting yunkong2"
sudo -u \${yunkong2USER} \$NODECMD \$yunkong2CMD start

EOF




# add service script /etc/systemd/system/yunkong2.service
echo "############### add service script /etc/systemd/system/yunkong2.service  ###############"

sudo cat <<- EOF > /etc/systemd/system/yunkong2.service
#
# Start yunkong2 Daemon
#
# /etc/systemd/system/yunkong2.service
# Invoking scripts to start/shutdown yunkong2

[Unit]
Description=yunkong2 server task
Requires=network.target

[Service]

User=yunkong2

Type=forking
RemainAfterExit=yes
Restart=no

ExecStart=/etc/init.d/yunkong2

[Install]
WantedBy=multi-user.target

EOF




# add user for yunkong2
echo "###############  Add user yunkong2 with sudo permisions for yunkong2 ###############"
sudo useradd yunkong2 -G sudo -d /opt/yunkong2
sudo sh -c "echo 'yunkong2 ALL=(ALL) NOPASSWD: ALL' >> /etc/sudoers"

# fix permisions
sudo chmod 755  /etc/init.d/yunkong2
sudo chmod 755  /etc/systemd/system/yunkong2.service


# install nodejs and another tools
echo "###############  install NodeJs and another tools ###############"
# install nodejs
sudo apt update -y
sudo apt --purge remove node -y
sudo apt --purge remove nodejs -y
sudo apt autoremove
sudo apt install -y build-essential nodejs

# install another tools
sudo apt install -y redis-server redis-tools
# update npm
sudo npm i npm@6 -g

# install yunkong2
echo "###############  install yunkong2 ###############"
sudo mkdir -p /opt/yunkong2
sudo chown -R yunkong2.yunkong2 /opt/yunkong2
sudo chmod 740 /opt/yunkong2
cd /opt/yunkong2
sudo npm install yunkong2 --unsafe-perm
sudo chown -R yunkong2.yunkong2 /opt/yunkong2
sudo ln -s /opt/yunkong2/yunkong2 /usr/sbin/yunkong2

echo "###############  start yunkong2 ###############"
sudo systemctl daemon-reload
sudo systemctl enable yunkong2.service
sudo systemctl start yunkong2.service

echo "###############  status yunkong2 ###############"
sudo systemctl status yunkong2.service

echo "###############  You can login in yunkong2 ###############"
IP=$(ip addr show eth0 | grep "inet\b" | awk '{print $2}' | cut -d/ -f1)
echo "###############  http://$IP:8081/  ###############"