#!/bin/bash
#/*
# * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
# * contributor license agreements.  See the NOTICE file distributed with
# * this work for additional information regarding copyright ownership.
# * The OpenAirInterface Software Alliance licenses this file to You under
# * the OAI Public License, Version 1.1  (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.openairinterface.org/?page_id=698
# *
# * 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.
# *-------------------------------------------------------------------------------
# * For more information about the OpenAirInterface (OAI) Software Alliance:
# *      contact@openairinterface.org
# */

# brief
# authors Laurent Thomas
#
#######################################
if [ ! -f /etc/os-release ]; then
    echo "No /etc/os-release file found. You're likely on an unsupported distro."
    exit 1
fi
OS_DISTRO=$(grep "^ID=" /etc/os-release | sed "s/ID=//" | sed "s/\"//g")
OS_RELEASE=$(grep "^VERSION_ID=" /etc/os-release | sed "s/VERSION_ID=//" | sed "s/\"//g")
case "$OS_DISTRO" in
    ubuntu) OS_BASEDISTRO="debian"; INSTALLER="apt"; CMAKE="cmake" ;;
esac

SUDO='sudo -E'

###############################
## echo and  family
###############################
black='\E[30m'
red='\E[31m'
green='\E[32m'
yellow='\E[33m'
blue='\E[1;34m'
magenta='\E[35m'
cyan='\E[36m'
white='\E[37m'
reset_color='\E[00m'
COLORIZE=1

cecho()  {
    # Color-echo
    # arg1 = message
    # arg2 = color
    local default_msg="No Message."
    message=${1:-$default_msg}
    color=${2:-$green}
    [ "$COLORIZE" = "1" ] && message="$color$message$reset_color"
    echo -e "$message"
    return
}

echo_error()   { cecho "$* $red"          ;}
echo_fatal()   { cecho "$* $red"; exit 1  ;}
echo_warning() { cecho "$* $yellow"       ;}
echo_success() { cecho "$* $green"        ;}
echo_info()    { cecho "$* $blue"         ;}

########################
# distribution helpers #
########################

# This function return a string to identify the distribution we are running
# Examples:
#   ubuntu16.04
#   debian8.5
get_distribution_release() {
    echo "$OS_DISTRO$OS_RELEASE"
}

check_supported_distribution() {
    case $(get_distribution_release) in
        "ubuntu20.04") return 0 ;;
        "ubuntu20.10") return 0 ;;
        "ubuntu21.04") return 0 ;;
    esac
    return 1
}

##################
# Error handlers #
##################

handler_EXIT() {
    local exit_code=$?
    [ "$exit_code" -eq 0 ] || echo_error "build have failed"
    exit $exit_code
}

trap handler_EXIT EXIT

###########################
# Cleaners
###########################

clean_kernel() {
    $SUDO modprobe ip_tables
    $SUDO modprobe x_tables
    $SUDO iptables -P INPUT ACCEPT
    $SUDO iptables -F INPUT
    $SUDO iptables -P OUTPUT ACCEPT
    $SUDO iptables -F OUTPUT
    $SUDO iptables -P FORWARD ACCEPT
    $SUDO iptables -F FORWARD
    $SUDO iptables -t nat -F
    $SUDO iptables -t mangle -F
    $SUDO iptables -t filter -F
    $SUDO iptables -t raw -F
    echo_info "Flushed iptables"
    $SUDO rmmod nasmesh > /dev/null 2>&1
    $SUDO rmmod oai_nw_drv  > /dev/null 2>&1
    $SUDO rmmod openair_rf > /dev/null 2>&1
    $SUDO rmmod ue_ip > /dev/null 2>&1
    echo_info "removed drivers from kernel"
}

clean_all_files() {
    set_openair_env
    rm -rf "$OPENAIR_DIR"/targets/bin/*
    dir="$OPENAIR_DIR/cmake_targets"
    rm -rf "$dir"/log/*
    rm -rf "$dir"/ran_build/build
    rm -rf "$dir"/ran_build_noLOG/build
    rm -rf "$dir"/lte-simulators/build 
    rm -rf "$dir"/phy_simulators/build
    rm -rf "$dir"/nas_sim_tools/build 
    rm -rf "$dir"/oaisim_build_oai/build
    rm -rf "$dir"/oaisim_build_oai/CMakeLists.txt
    rm -rf "$dir"/autotests/bin
    rm -rf "$dir"/autotests/log
    rm -rf "$dir"/autotests/*/build
}

############################################
# External packages installers
############################################

install_protobuf_from_source(){
    protobuf_install_log=$OPENAIR_DIR/cmake_targets/log/protobuf_install_log.txt
    echo_info "\nInstalling Google Protobuf from sources. The log file for Protobuf installation is here: $protobuf_install_log "
    (
	cd /tmp || exit
	echo "Downloading protobuf"
	#rm -rf /tmp/protobuf-2.6.1.tar.gz* /tmp/protobuf-2.6.1
	#wget https://github.com/protocolbuffers/protobuf/releases/download/v2.6.1/protobuf-2.6.1.tar.gz
	#tar -xzvf protobuf-2.6.1.tar.gz --owner $USER --group $USER --no-same-owner
	#cd protobuf-2.6.1/
	rm -rf /tmp/protobuf-cpp-3.3.0.tar.gz* /tmp/protobuf-3.3.0
	wget --tries=3 --retry-connrefused https://github.com/protocolbuffers/protobuf/releases/download/v3.3.0/protobuf-cpp-3.3.0.tar.gz
	tar -xzvf protobuf-cpp-3.3.0.tar.gz --owner "$USER" --group "$(groups | cut -d" " -f1)" --no-same-owner
	cd protobuf-3.3.0/ || exit
	./configure
	echo "Compiling protobuf"
	make -j"$(nproc)"
	$SUDO make install
	$SUDO ldconfig
    ) >& "$protobuf_install_log"
}

install_protobuf_c_from_source(){
    protobuf_c_install_log=$OPENAIR_DIR/cmake_targets/log/protobuf_c_install_log.txt
    echo_info "\nInstalling Google Protobuf_C from sources. The log file for Protobuf_C installation is here: $protobuf_c_install_log "
    (
	if [[ "$OS_DISTRO" == "rhel" ]] || [[ "$OS_DISTRO" == "centos" ]]; then
            export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
	fi
	cd /tmp || exit
	echo "Downloading protobuf-c"
	rm -rf /tmp/protobuf-c
	git clone https://github.com/protobuf-c/protobuf-c.git
	cd protobuf-c || exit
	git checkout 2a46af42784abf86804d536f6e0122d47cfeea45
	./autogen.sh
	./configure
	echo "Compiling protobuf-c"
	make -j"$(nproc)"
	$SUDO make install
	$SUDO ldconfig
    ) >& "$protobuf_c_install_log"
}

install_usrp_uhd_driver_from_source(){
    uhd_install_log=$OPENAIR_DIR/cmake_targets/log/uhd_install_log.txt
    echo_info "\nInstalling UHD driver from sources. The log file for UHD driver installation is here: $uhd_install_log "
    (
	cd /tmp || exit
	echo "Downloading UHD driver"
	rm -rf /tmp/uhd
	git clone https://github.com/EttusResearch/uhd.git
	cd uhd || exit
	git checkout UHD-3.15.LTS
	mkdir -p host/build
	cd host/build || exit
	$CMAKE ../ -GNinja
	echo "Compiling UHD"
	ninja
	$SUDO ninja install
	$SUDO ldconfig
        $SUDO /usr/lib/uhd/utils/uhd_images_downloader.py
    ) >& "$uhd_install_log"
}

install_bladerf_driver_from_source(){
    bladerf_install_log=$OPENAIR_DIR/cmake_targets/log/bladerf_install_log.txt
    echo_info "\nInstalling BladeRF driver from sources. The log file for BladeRF driver installation is here: $bladerf_install_log "
    (
	cd /tmp || exit
	echo "Downloading BladeRF driver"
	rm -rf /tmp/bladeRF
	git clone https://github.com/Nuand/bladeRF.git
	cd bladeRF || exit
	git checkout tags/2016.06
	mkdir -p build
	cd build || exit
	$CMAKE ../
	echo "Compiling BladeRF driver"
	make -j"$(nproc)"
	$SUDO make install
	$SUDO ldconfig
	echo "Downloading FPGA and firmware images"
	cd /tmp/bladeRF || exit
	wget --tries=3 --retry-connrefused https://www.nuand.com/fx3/bladeRF_fw_latest.img
	wget --tries=3 --retry-connrefused https://www.nuand.com/fpga/hostedx40-latest.rbf
	sudo mkdir -p /usr/share/Nuand/bladeRF
	sudo mv bladeRF_fw_latest.img /usr/share/Nuand/bladeRF/bladeRF_fw.img
	sudo mv hostedx40-latest.rbf /usr/share/Nuand/bladeRF/hostedx40.rbf
    ) >& "$bladerf_install_log"
}

check_install_bladerf_driver(){
    if [[ "$OS_DISTRO" == "ubuntu" ]]; then
        $SUDO apt-get install -y  bladerf libbladerf-dev
        $SUDO apt-get install -y bladerf-firmware-fx3
        $SUDO apt-get install -y bladerf-fpga-hostedx40
    elif [[ "$OS_BASEDISTRO" == "fedora" ]]; then
        install_bladerf_driver_from_source
    else
        echo_error "BladeRF Installer for OAI does not support automatic build. Install BladeRF compiling sources manually from BladeRF website"
    fi
}

flash_firmware_bladerf() {
    $SUDO bladeRF-cli --flash-firmware /usr/share/Nuand/bladeRF/bladeRF_fw.img
}

install_soapy_from_source(){
    soapy_install_log=$OPENAIR_DIR/cmake_targets/log/soapy_install_log.txt
    echo_info "\nInstalling Soapy EcoSystem from source. The log file for Soapy installation is here: $soapy_install_log "
    (
	cd /tmp || exit
	echo "Downloading SoapySDR"
	rm -rf /tmp/soapysdr
	git clone -b soapy-sdr-0.7.0 --single-branch https://github.com/pothosware/SoapySDR.git
	cd SoapySDR || exit
	#git checkout tags/release_003_010_001_001
	mkdir -p build
	cd build || exit
	$CMAKE ../
	echo "Compiling SoapySDR"
	make -j"$(nproc)"
	$SUDO make install
	$SUDO ldconfig
	cd /tmp || exit
	echo "Downloading SoapyRemote"
	rm -rf /tmp/soapyremote
	git clone -b soapy-remote-0.5.0 --single-branch https://github.com/pothosware/SoapyRemote.git
	cd SoapyRemote || exit
	#git checkout tags/release_003_010_001_001
	mkdir -p build
	cd build || exit
	cmake ../
	echo "Compiling SoapyRemote"
	make -j"$(nproc)"
	$SUDO make install
	$SUDO ldconfig
    ) >& "$soapy_install_log"
}

install_soapy_iris_from_source(){
    iris_install_log=$OPENAIR_DIR/cmake_targets/log/iris_install_log.txt
    echo_info "\nInstalling Iris driver from source. The log file for Iris driver installation is here: $iris_install_log "
    (
	cd /tmp || exit
	echo "Downloading SoapyIris"
	rm -rf /tmp/sklk-soapyiris
	git clone -b soapy-iris-2018.08.0.1 --single-branch https://github.com/skylarkwireless/sklk-soapyiris.git
	cd sklk-soapyiris || exit
	mkdir -p build
	cd build ||exit
	cmake ../
	echo "Compiling SoapyIris"
	make -j"$(nproc)"
	$SUDO make install
	$SUDO ldconfig
    ) >& "$iris_install_log"
}

check_install_soapy () {
    #if [[ "$OS_DISTRO" == "ubuntu" ]]; then
    #first we remove old installation
    $SUDO apt-get remove -y soapysdr soapysdr-server libsoapysdr-dev python-soapysdr python3-soapysdr soapysdr-module-remote || true
    #$SUDO add-apt-repository -y ppa:myriadrf/drivers
    #$SUDO apt-get update
    #$SUDO apt-get install -y soapysdr soapysdr-server libsoapysdr-dev python-soapysdr python3-soapysdr soapysdr-module-remote

    #elif [[ "$OS_BASEDISTRO" == "fedora" ]]; then
    #    $SUDO $INSTALLER -y install software-properties-common python3-software-properties python-software-properties subversion git python3 python-numpy python3-numpy cmake swig python-dev
    install_soapy_from_source
    #fi
    install_soapy_iris_from_source
    
}

check_install_ubuntu_packages() {
    $SUDO $INSTALLER update -y
    if [[ "$OS_DISTRO" == "ubuntu" ]]; then
	local LAPACK_LIBNAME="liblapack.so"
	local LAPACK_TARGET="/usr/lib/atlas-base/atlas/liblapack.so"
	$SUDO apt install -y software-properties-common
	case "$(get_distribution_release)" in
            "ubuntu20.04")
		specific_packages="libtasn1-6-dev libgnutls28-dev iproute2 libconfig-dev"
		LAPACK_LIBNAME="liblapack.so-x86_64-linux-gnu"
		LAPACK_TARGET="/usr/lib/x86_64-linux-gnu/atlas/liblapack.so"
		;;
            "ubuntu21.04")
		specific_packages="libtasn1-6-dev libgnutls28-dev iproute2 libconfig-dev"
		LAPACK_LIBNAME="liblapack.so-x86_64-linux-gnu"
		LAPACK_TARGET="/usr/lib/x86_64-linux-gnu/atlas/liblapack.so"
		;;
	esac
	$SUDO $INSTALLER install -y \
	      $specific_packages \
	      check  \
              dialog \
              dkms \
              gawk \
              libboost-all-dev \
              libpthread-stubs0-dev \
              openvpn \
              pkg-config \
              python3-dev  \
              sshfs \
              swig  \
              tshark \
              uml-utilities \
              unzip  \
              valgrind  \
              vlan      \
              exuberant-ctags \
              ntpdate \
              iperf3 \
              android-tools-adb \
              wvdial \
              sshpass \
              nscd \
              bc \
              ntp \
              python3-scipy \
              python3-matplotlib \
	      bison  \
	      build-essential \
	      cmake \
	      cmake-curses-gui  \
              ninja-build \
	      doxygen \
	      doxygen-gui \
	      texlive-latex-base \
	      ethtool \
	      flex  \
	      gdb  \
	      git \
	      graphviz \
	      gtkwave \
	      iperf \
	      iptables \
	      libxtables-dev \
	      libatlas-base-dev \
	      libblas-dev \
	      liblapack-dev\
	      liblapacke-dev\
	      libffi-dev \
	      libforms-bin \
	      libforms-dev \
	      libgcrypt20-dev \
	      libgmp-dev \
	      libgtk-3-dev \
	      libidn2-0-dev  \
	      libidn11-dev \
	      libmysqlclient-dev  \
	      libpython2.7-dev \
	      libsctp1  \
	      libsctp-dev  \
	      libssl-dev  \
	      libtool  \
	      libusb-1.0-0-dev \
	      libxml2 \
	      libxml2-dev  \
	      libxslt1-dev \
	      mscgen  \
	      octave-signal \
	      openssh-client \
	      openssh-server \
	      openssl \
	      python3  \
	      subversion \
	      xmlstarlet \
	      python3-pip \
	      libyaml-dev \
	      wget \
	      libxpm-dev \
              libboost-all-dev \
	      nettle-dev \
	      nettle-bin \
              libreadline-dev
    fi
    
    $SUDO update-alternatives --set "$LAPACK_LIBNAME" "$LAPACK_TARGET"
    
}

install_asn1c_from_source(){
    asn1_install_log=$OPENAIR_DIR/cmake_targets/log/asn1c_install_log.txt
    echo_info "\nInstalling ASN1. The log file for ASN1 installation is here: $asn1_install_log "
    (
	$SUDO rm -rf /tmp/asn1c
	# GIT_SSL_NO_VERIFY=true git clone https://gitlab.eurecom.fr/oai/asn1c.git /tmp/asn1c
	git clone https://gitlab.eurecom.fr/oai/asn1c.git /tmp/asn1c
	cd /tmp/asn1c || exit
	# better to use a given commit than a branch in case the branch
	# is updated and requires modifications in the source of OAI
	#git checkout velichkov_s1ap_plus_option_group
	git checkout f12568d617dbf48497588f8e227d70388fa217c9
	autoreconf -iv
	./configure
	make -j"$(nproc)"
	$SUDO make install
	cd - || exit
	$SUDO ldconfig
    ) > "$asn1_install_log" 2>&1
}

#################################################
# 2. compile
################################################

install_nas_tools() {
    echo_success "generate .ue_emm.nvram .ue.nvram"
    ./nvram --gen -c "$1" -o "$2"
    ./usim --gen -c "$1" -o "$2"
}


################################
# set_openair_env
###############################
set_openair_env(){
    fullpath=$(readlink -f "${BASH_SOURCE[0]}")
    [ -f "/.$fullpath" ] || fullpath=$(readlink -f "$PWD/$fullpath")
    openair_path=${fullpath%/cmake_targets/*}
    openair_path=${openair_path%/targets/*}
    openair_path=${openair_path%/openair[123]/*}
    export OPENAIR_DIR=$openair_path
    export OPENAIR1_DIR=$openair_path/openair1
    export OPENAIR2_DIR=$openair_path/openair2
    export OPENAIR3_DIR=$openair_path/openair3
    export OPENAIR_TARGETS=$openair_path/targets
}

if ! check_supported_distribution; then
    echo_error "Your distribution $(get_distribution_release) is not supported by oai !"
    exit 1
fi

echo_info "Installing packages"
check_install_ubuntu_packages

echo_info "installing ASN.1 compiler"
install_asn1c_from_source

echo_info "installing protobuf/protobuf-c for flexran agent support"
install_protobuf_from_source
install_protobuf_c_from_source

if [ "$1" == "USRP" ] ; then
    echo_info "installing packages for USRP support"
    install_usrp_uhd_driver
fi
if [ "$1" == "BLADERF" ] ; then
    echo_info "installing packages for BLADERF support"
    check_install_bladerf_driver
    flash_firmware_bladerf
fi
if [ "$1" == "IRIS" ] ; then
    echo_info "installing packages for IRIS support"
    check_install_soapy
    #  flash_firmware_iris
fi
