#!/bin/bash

# Note 
# 3 GB memory (ram+swap) MUST be available when compiling
# This amount is plenty for working with denmark - but more may be required on larger areas
#
# DATADIR should have 6 GB free space for denmark


###################################
# Exit bash if a command fails
set -e
# also exit if a part of a pipe fails
set -o pipefail



#########################


TAG="v5.5.1"
DATADIR=/home/openstreetmap

if [ ! -d "$DATADIR" ] ; then
	echo DATADIR not found .. creating
	mkdir -p $DATADIR
fi

if [ ! -f /usr/local/bin/osrm-extract ] ; then
  apt-get install build-essential git cmake pkg-config libprotoc-dev  protobuf-compiler libprotobuf-dev libosmpbf-dev libpng12-dev libbz2-dev libstxxl-dev libstxxl-doc libstxxl1
  apt-get install libxml2-dev libzip-dev libboost-all-dev lua5.1 liblua5.1-0-dev libluabind-dev  libtbb-dev


  cd /root
 
  if [ ! -d osrm-backend ] ; then
    git clone https://github.com/Project-OSRM/osrm-backend.git
    cd osrm-backend
    git checkout tags/$TAG
  else
    cd osrm-backend
  fi

  if [ ! -d build ] ; then 
    mkdir -p build
  fi

  cd build

  #If building on Debian8/jessie LTO is apparently broken
  cmake -DENABLE_LTO=OFF ..
  make -j 2
  make install
fi


##########################################


cd $DATADIR

if [ ! -f denmark-latest.osm ] ; then
	wget http://download.geofabrik.de/europe/denmark-latest.osm.bz2
	bunzip2 denmark-latest.osm.bz2
fi


cd /root/osrm-backend

if [ ! -f $DATADIR/denmark-latest.osrm ] ; then
	osrm-extract $DATADIR/denmark-latest.osm
fi

if [ ! -f $DATADIR/denmark-latest.osrm.hsgr ] ; then
	osrm-contract $DATADIR/denmark-latest.osrm
fi

cd $DATADIR

osrm-routed denmark-latest.osrm