#!/usr/bin/env bash
# Ref : https://www.linode.com/docs/databases/mongodb/install-mongodb-on-ubuntu-16-04

# Make sure only root can run this installer script
if [ "$(id -u)" != "0" ]; then
	echo "You need to be root to run this script" 1>&2
	exit 1
fi

# Make sure this script only run on Ubuntu install
if [ ! -f "/etc/lsb-release" ]; then
	echo "This installer only work on Ubuntu server..." 1>&2
	exit 1
fi

echo -n "Do you want to install MongoDB? [Y/n]: "
read MongodbInstall

if [[ "$MongodbInstall" == "Y" || "$MongodbInstall" == "y" || "$MongodbInstall" == "yes" ]]; then
    echo "Installing MongoDB server and MongoDB PHP module..."

    apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 9DA31620334BD75D9DCB49F368818C72E52529D4
    sh -c "echo 'deb [ arch=amd64 ] https://repo.mongodb.org/apt/ubuntu bionic/mongodb-org/4.0 multiverse' > /etc/apt/sources.list.d/mongodb-org-4.0.list"
    apt-get update
    apt-get -y install mongodb-org mongodb-org-server

    echo -n "Do you want to add MongoDB to systemctl? [Y/n]: "
    read MongodbAutostart

    if [[ "$MongodbAutostart" == "Y" || "$MongodbAutostart" == "y" || "$MongodbAutostart" == "yes" ]]; then
        systemctl restart mongod
        systemctl enable mongodb

        systemctl status mongod
    fi
fi

echo "Installation completed. Please create an administrative user. Example command lines below:";
cat <<- _EOF_
mongo
> use admin
> db.createUser({user: "admin", pwd: "<Enter a secure password>", roles:[{role: "root", db: "admin"}]})
> quit()

mongo -u admin -p --authenticationDatabase user-data
> use exampledb
> db.createCollection("exampleCollection", {capped: false})
> var a = { name : "John Doe",  attributes: { age : 30, address : "123 Main St", phone : 8675309 }}
> db.exampleCollection.insert(a)
> WriteResult({ "nInserted" : 1 })
> db.exampleCollection.find()
> db.exampleCollection.find({"name" : "John Doe"})
_EOF_