#!/bin/bash
set -eux
USE_CACHE=${USE_CACHE:-true}
ODL_INTEGRATION_PACKAGING=${ODL_INTEGRATION_PACKAGING:-https://github.com/opendaylight/integration-packaging}

# ODL versions to build, separated by space
# Taken from https://github.com/opendaylight/integration-packaging/blob/master/deb/build_vars.yaml
# If more than one version of ODL are included make sure that local
# fpb contain this commit https://review.openstack.org/#/c/311031/
ODL_VERSIONS=${ODL_VERSIONS:-5.0.0.1 5.2.0.1}

#Networking odl
NETWORKING_ODL_REPO=${NETWORKING_ODL_REPO:-http://ubuntu-cloud.archive.canonical.com/ubuntu/pool/main/n/networking-odl/}
NETWORKING_ODL_DEB=${NETWORKING_ODL_DEB:-python-networking-odl_2.0.1~git20160926.416a5c7-0ubuntu1~cloud0_all.deb}

DIR="$(dirname `readlink -f $0`)"
CACHE_DIR="${DIR}/.cache"
CACHE_DEB_DIR="${CACHE_DIR}/integration-packaging/deb/cache"

# OPNFV builds plugin inside container, in that case
# we need to use sudo to have access to docker
OPNFV_BUILD=${OPNFV_BUILD:-false}
if [ "$OPNFV_BUILD" == true  ] ;then
  SUDO="sudo"
else
  SUDO=" "
fi

function prep_build_env {
  docker_build_opts="-t odl_deb"
  if [ "$USE_CACHE" != true  ] || [ ! -d "${CACHE_DIR}/integration-packaging" ] ;then
    rm -rf ${CACHE_DIR}/integration-packaging
    git clone ${ODL_INTEGRATION_PACKAGING} ${CACHE_DIR}/integration-packaging
    docker_build_opts+=" --no-cache"
  fi
  $SUDO docker build ${docker_build_opts} ${CACHE_DIR}/integration-packaging/deb
}

function build_odl_deb {
  $SUDO docker run -u $(id -u) --rm -v ${CACHE_DIR}/integration-packaging/deb:/build odl_deb -v ${1//./ }
  rm -rf ${CACHE_DIR}/integration-packaging/deb/opendaylight
}

function in_cache {
  [ -f "${CACHE_DEB_DIR}/${1}" ]
}

function copy_from_cache {
  cp ${CACHE_DEB_DIR}/${1} ${DIR}/repositories/ubuntu/${1}
}

command -v docker >/dev/null 2>&1 || { echo >&2 "Docker is required but it's not installed.  Aborting."; exit 1; }

mkdir -p "${CACHE_DIR}"
prep_build_env
rm -f ${DIR}/repositories/ubuntu/*.deb

for v in $ODL_VERSIONS
do
  deb_name="opendaylight_${v%.*}-${v##*.}_all.deb"
  if ! in_cache $deb_name ;then
    build_odl_deb $v
  fi
  copy_from_cache $deb_name
done

if ! in_cache $NETWORKING_ODL_DEB ;then
  wget -O ${CACHE_DEB_DIR}/${NETWORKING_ODL_DEB} ${NETWORKING_ODL_REPO}/${NETWORKING_ODL_DEB}
fi
copy_from_cache $NETWORKING_ODL_DEB