#!/bin/bash
#
#
# Copyright 2019 AT&T Intellectual Property
# Copyright 2019 Nokia
#
# 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.
#
# build utility for E2 Agent

set -e

E2SIM_DIR=$PWD
ASN1_C_DIR=$E2SIM_DIR/build/CMakeFiles/ASN1

source $E2SIM_DIR/tools/build_helper.bash

print_help()
{
  echo "
    This program installs E2 Simulator
    You should have ubuntu 14.xx, updated, and the Linux kernel >= 3.14
    The program is run by default with no option

    Options
    --clean
       Erase all files to make a rebuild from start
    -h
       Print this help
    "
}

generate_asn1c_codes()
{
  X2AP_RELEASE="R14"
  X2AP_ASN_FILES="x2ap-14.6.0.asn1"
  ASN_SOURCE_X2AP=$E2SIM_DIR/src/X2AP/MESSAGES/ASN1/${X2AP_RELEASE}/${X2AP_ASN_FILES}

  ASN_SOURCE_Pendulum=$E2SIM_DIR/src/ONS2019/pendulum.asn1

  done_flag="$ASN1_C_DIR"/done

  #-ot = older than, -nt = newer than

  if [ "$done_flag" -ot $ASN_SOURCE_X2AP ] ; then
    echo_info "Generate C codes for from source file"
    #echo_info $ASN_SOURCE

    rm -f "$ASN1_C_DIR"/*.c "$ASN1_C_DIR"/*.h
    mkdir -p $ASN1_C_DIR
    asn1c -pdu=all -fcompound-names -gen-PER -no-gen-OER -no-gen-example \
                -fno-include-deps -D $ASN1_C_DIR $ASN_SOURCE_X2AP  \
                |& egrep -v "^Copied|^Compiled" | sort -u

    asn1c -pdu=all -fcompound-names -gen-PER -no-gen-OER -no-gen-example \
                -fno-include-deps -D $ASN1_C_DIR $ASN_SOURCE_Pendulum  \
                |& egrep -v "^Copied|^Compiled" | sort -u

    echo_success "ASN1 C codes generated at: $ASN1_C_DIR"
  fi
  touch $done_flag
}

install_rmr()
{
  echo_info "Will install rmr library"
  /bin/bash rmr_interface/rmr_install.sh
}

compile_asn_api_lib()
{
  echo_info "Will complie ASN1_API library"
  # rm -rf build/libASN1_API.a
  # rm -rf build/asn_x2ap.o
  # rm -rf build/asn_e2ap.o

  g++ -O3  -std=c++14 -Wall \
    -I./src/ASN1/ -I./src/ASN1/asn/ -I./src/ASN1/generated/  \
    -c src/ASN1/lib/asn_e2ap.cpp \
    -o build/asn_e2ap.o
    ar -crv build/libASN1_API.a build/asn_e2ap.o

  g++ -O3  -std=c++14 -Wall \
    -I./src/ASN1/ -I./src/ASN1/asn/ -I./src/ASN1/generated/  \
    -c src/ASN1/lib/asn_x2ap.cpp \
    -o build/asn_x2ap.o
    ar -crv build/libASN1_API.a build/asn_x2ap.o
}

function main()
{

  case "$1" in
    --clean)
      echo_info "Will clean all previously producted files under build/"
      rm -rf $E2SIM_DIR/build
      echo_success "Clean Done"
      exit
      ;;

    "")
      ;;

    --rmr)
      install_rmr
      exit
      ;;

    --lib)
      compile_asn_api_lib
      exit
      ;;

    -h)
      print_help
      exit 1;;

    *)
      echo_error "Unknown option $1"
      exit
  esac

  BUILD_DIR=$E2SIM_DIR/build
  mkdir -p $BUILD_DIR
  mkdir -p $BUILD_DIR/log

  # generate_asn1c_codes #X2AP, pendulum

  compile_asn_api_lib

  echo_info "Will build e2sim"
  cd $BUILD_DIR
  rm -rf CMakeCache.txt
  cmake ..
  make -j`nproc`

  echo_success "e2sim compiled"

}

main "$@"