#!/bin/bash

# System setup (root access is required)

# Make sure only root can run our script
# TODO: remove sudo requirement
if [ "$(id -u)" != "0" ]; then
    echo "This script must be run as root" 1>&2
    exit 1
fi

# Working directories
set -e
script_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
mkdir -p ${script_dir}/tmp

# Install OS packages
# TODO: sudo is required here (remove)
cd ${script_dir}/tmp
wget -O - http://debian.neo4j.org/neotechnology.gpg.key >> key.pgp
apt-key add key.pgp
echo 'deb http://debian.neo4j.org/repo stable/' | tee -a /etc/apt/sources.list.d/neo4j.list > /dev/null
apt-get update
apt-get install -y maven default-jdk neo4j

# Install Hadoop
cd ${script_dir}/tmp
hadoop_version="hadoop-2.7.3"
hadoop_tar="${hadoop_version}.tar.gz"
hadoop_url="http://apache.mirrors.tds.net/hadoop/common/${hadoop_version}/${hadoop_tar}"
wget ${hadoop_url}
tar -xzvf ${hadoop_tar}
rm -rf /usr/local/hadoop/${hadoop_version}
# TODO: root access is required here -> run hadoop under a current user
mv ${hadoop_version} /usr/local/hadoop

# Performance Setup
# echo performance | sudo tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor >/dev/null

# Cleanup
rm -rf ${script_dir}/tmp