# Copyright (c) 2017-2019 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

#!/bin/bash
set -euxo pipefail

SCRIPT_PATH=$( cd "$(dirname "${BASH_SOURCE}")" ; pwd -P )
APT_PATH=`which apt-get` || true
apt_get=${APT_PATH:-"/usr/local/bin/apt-get"}

PACKAGECLOUD_RELEASE_REPO_DEB="https://packagecloud.io/install/repositories/fdio/release/script.deb.sh"
PACKAGECLOUD_RELEASE_REPO_RPM="https://packagecloud.io/install/repositories/fdio/release/script.rpm.sh"

VPP_GIT_REPO="https://git.fd.io/vpp"
VPP_BRANCH="stable/2001"

VPP_VERSION_DEB="20.01-release"
VPP_VERSION_RPM="20.01-release.x86_64"

BUILD_TOOLS_UBUNTU="build-essential doxygen"
LIBSSL_LIBEVENT_UBUNTU="libevent-dev libssl-dev"
DEPS_UBUNTU="libparc-dev                        \
             libmemif-dev                       \
             libmemif                           \
             libasio-dev                        \
             libconfig-dev                      \
             libcurl4-openssl-dev               \
             vpp=${VPP_VERSION_DEB}             \
             vpp-dev=${VPP_VERSION_DEB}         \
             libvppinfra=${VPP_VERSION_DEB}     \
             libvppinfra-dev=${VPP_VERSION_DEB} \
             vpp-plugin-core=${VPP_VERSION_DEB} \
             libyang                            \
             sysrepo                            \
             python3-ply"


DEPS_UBUNTU_NOVERSION="libparc-dev              \
             libmemif-dev                       \
             libmemif                           \
             libasio-dev                        \
             libconfig-dev                      \
             libcurl4-openssl-dev               \
             vpp                                \
             vpp-dev                            \
             libvppinfra                        \
             libvppinfra-dev                    \
             vpp-plugin-core                    \
             libyang                            \
             sysrepo                            \
             python3-ply                        \
             python3-setuptools                 \
             python3-pip"

DEPS_CMAKE_UBUNTU="curl"

# BUILD_TOOLS_GROUP_CENTOS="'Development Tools'"
DEPS_CENTOS="vpp-devel-${VPP_VERSION_RPM}   \
             vpp-lib-${VPP_VERSION_RPM}     \
             libparc-devel                  \
             libmemif-devel                 \
             libmemif                       \
             libcurl-devel                  \
             asio-devel                     \
             libconfig-devel                \
             centos-release-scl             \
             libyang                        \
             sysrepo                        \
             devtoolset-7"

DEPS_CENTOS_NOVERSION="vpp-devel            \
                       vpp-lib              \
                       libparc-devel        \
                       libcurl-devel        \
                       asio-devel           \
                       libmemif-devel       \
                       libmemif             \
                       centos-release-scl   \
                       devtoolset-7"

LATEST_EPEL_REPO="http://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm"

install_cmake() {
    if [ "${DISTRIB_ID}" == "ubuntu" ]; then
        sudo apt update
        echo ${DEPS_CMAKE_UBUNTU} | xargs sudo ${apt_get} install -y --allow-unauthenticated --no-install-recommends
    fi

    if ! grep -q "8.8.8.8" /etc/resolv.conf; then
        echo "nameserver 8.8.8.8" | sudo tee -a /etc/resolv.conf
    fi

    cat /etc/resolv.conf

    CMAKE_INSTALL_SCRIPT_URL="https://cmake.org/files/v3.8/cmake-3.8.0-Linux-x86_64.sh"
    CMAKE_INSTALL_SCRIPT="/tmp/install_cmake.sh"
    curl ${CMAKE_INSTALL_SCRIPT_URL} > ${CMAKE_INSTALL_SCRIPT}

    sudo mkdir -p /opt/cmake
    sudo bash ${CMAKE_INSTALL_SCRIPT} --skip-license --prefix=/opt/cmake
    export PATH=/opt/cmake/bin:${PATH}
}

# Parameters:
# $1 = Distribution id
# $2 = Distribution codename
#
setup_fdio_repo() {
    DISTRIB_ID=${1}

    if [ "${DISTRIB_ID}" == "ubuntu" ]; then
    rm -r /etc/apt/sources.list.d/*
    curl -s ${PACKAGECLOUD_RELEASE_REPO_DEB} | sudo bash
    elif [ "${DISTRIB_ID}" == "centos" ]; then
        curl -s ${PACKAGECLOUD_RELEASE_REPO_RPM} | sudo bash
        curl ${LATEST_EPEL_REPO} > epel-release-latest-7.noarch.rpm
        rpm -ivh epel-release-latest-7.noarch.rpm || true
        rm epel-release-latest-7.noarch.rpm
    else
        echo "Distribution ${DISTRIB_ID} is not supported"
        exit -1
    fi
}

setup() {
    # Figure out what system we are running on
    if [ -f /etc/os-release ]; then
        . /etc/os-release
    else
        echo "ERROR: System configuration not recognized. Build failed"
        exit -1
    fi

    DISTRIB_ID=${ID}

    echo DISTRIBUTION: ${PRETTY_NAME}
    echo ARCHITECTURE: $(uname -m)

    ARCH=`uname -m`
    if [ "$ARCH" == "x86_64" ] || [ "$ARCH" == "x86" ]; then
        install_cmake
    fi
    setup_fdio_repo ${DISTRIB_ID}

    if [ "${DISTRIB_ID}" == "ubuntu" ]; then
        sudo ${apt_get} update || true
    fi

    # Install dependencies
    if [ ${DISTRIB_ID} == "ubuntu" ]; then
        echo ${BUILD_TOOLS_UBUNTU} ${DEPS_UBUNTU_NOVERSION} | xargs sudo ${apt_get} install -y --allow-unauthenticated --no-install-recommends
    elif [ ${DISTRIB_ID} == "centos" ]; then
        # echo ${BUILD_TOOLS_GROUP_CENTOS} | xargs sudo yum groupinstall -y --nogpgcheck
        echo ${DEPS_CENTOS} | xargs sudo yum install -y --nogpgcheck
        sudo yum install devtoolset-7

        c++ --version

        CXX_COMPILER="/opt/rh/devtoolset-7/root/usr/bin/c++"
        CC_COMPILER="/opt/rh/devtoolset-7/root/usr/bin/cc"

        ${CXX_COMPILER} --version
        ${CC_COMPILER} --version

        export CC=${CC_COMPILER} CXX=${CXX_COMPILER}
    fi

    # do nothing but check compiler version
    c++ --version
}


install_collectd_headers() {
    if [ -f /etc/os-release ]; then
        . /etc/os-release
    else
        echo "ERROR: System configuration not recognized. Build failed"
        exit -1
    fi

    if [ "${DISTRIB_ID}" == "ubuntu" ]; then
        sudo apt-get install collectd-dev -y --allow-unauthenticated

        if [ "${VERSION_CODENAME}" == "xenial" ]; then
            awk '/config.h/ { print; print "#include \"collectd/liboconfig/oconfig.h\""; next }1' /usr/include/collectd/core/daemon/configfile.h | sudo tee /usr/include/collectd/core/daemon/configfile.h
        fi
    elif [ "${DISTRIB_ID}" == "centos" ]; then
        wget https://storage.googleapis.com/collectd-tarballs/collectd-5.9.2.tar.bz2
        tar -xf collectd-5.9.2.tar.bz2
        cd collectd-5.9.2 && ./configure && make && cd -
        export COLLECTD_HOME=${PWD}/collectd-5.9.2/src
    fi
}

# Parameters:
# $1 = Package name
#
build_package() {
    setup

    echo "*******************************************************************"
    echo "********************* STARTING PACKAGE BUILD **********************"
    echo "*******************************************************************"

    # Make the package
    mkdir -p ${SCRIPT_PATH}/../build && pushd ${SCRIPT_PATH}/../build

    rm -rf *
    cmake -DCMAKE_INSTALL_PREFIX=/usr -DBUILD_APPS=ON ..
    make VERBOSE=1 -j8 package

    rm -rf libtransport ctrl/libhicnctrl

    install_collectd_headers

    cmake -DCMAKE_INSTALL_PREFIX=/usr   \
          -DBUILD_HICNPLUGIN=ON         \
          -DBUILD_LIBTRANSPORT=ON       \
          -DBUILD_APPS=ON               \
          -DBUILD_HICNLIGHT=OFF         \
          -DBUILD_SYSREPOPLUGIN=ON      \
          -DBUILD_TELEMETRY=ON          \
          ${SCRIPT_PATH}/..

    make VERBOSE=1 -j8 package

    find . -not -name '*.deb' -not -name '*.rpm' -print0 | xargs -0 rm -rf -- || true
    rm *Unspecified* || true

    popd

    echo "*******************************************************************"
    echo "*****************  BUILD COMPLETED SUCCESSFULLY *******************"
    echo "*******************************************************************"
}

build_sphinx() {
    setup

    echo "*******************************************************************"
    echo "********************* STARTING DOC BUILD **************************"
    echo "*******************************************************************"

    # Make the package
    pip3 install -r ${SCRIPT_PATH}/../docs/etc/requirements.txt
    pushd ${SCRIPT_PATH}/../docs
    make html

    popd

    echo "*******************************************************************"
    echo "*****************  BUILD COMPLETED SUCCESSFULLY *******************"
    echo "*******************************************************************"
}

build_doxygen() {
    setup

    mkdir -p ${SCRIPT_PATH}/../build-doxygen
    pushd ${SCRIPT_PATH}/../build-doxygen
    cmake -DBUILD_HICNPLUGIN=OFF -DBUILD_HICNLIGHT=OFF -DBUILD_LIBTRANSPORT=OFF -DBUILD_UTILS=OFF -DBUILD_APPS=OFF -DBUILD_CTRL=OFF ..
    make doc
    popd
}

function usage() {
    echo "Usage: ${0} [doc|sphinx|doxygen]"
    exit 1
}

if [ -z ${1+x} ]; then
    set -- "packages"
fi

case "${1}" in
  sphinx)
    build_sphinx
    ;;
  doxygen)
    build_doxygen
    ;;
  packages)
    build_package
    ;;
  *)
    usage
esac

exit 0