#!/bin/bash

# Licensed to the LF AI & Data foundation under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you 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.

SOURCE=${BASH_SOURCE[0]}
while [ -h $SOURCE ]; do # resolve $SOURCE until the file is no longer a symlink
  DIR=$( cd -P $( dirname $SOURCE ) && pwd )
  SOURCE=$(readlink $SOURCE)
  [[ $SOURCE != /* ]] && SOURCE=$DIR/$SOURCE # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located
done
DIR=$( cd -P $( dirname $SOURCE ) && pwd )


CMAKE_BUILD=${DIR}/../cwrapper_rocksdb_build
OUTPUT_LIB=${DIR}/../internal/kv/rocksdb/cwrapper/output
SRC_DIR=${DIR}/../internal/kv/rocksdb/cwrapper

if [ ! -d ${CMAKE_BUILD} ];then
    mkdir ${CMAKE_BUILD}
fi

if [ ! -d ${OUTPUT_LIB} ];then
    mkdir ${OUTPUT_LIB}
fi

BUILD_TYPE="Debug"
CUSTOM_THIRDPARTY_PATH=""
EMBEDDED_MILVUS="OFF"

while getopts "t:h:f:b" arg; do
  case $arg in
  f)
    CUSTOM_THIRDPARTY_PATH=$OPTARG
    ;;
  t)
    BUILD_TYPE=$OPTARG # BUILD_TYPE
    ;;
  h) # help
    echo "-t: build type(default: Debug)
-f: custom thirdparty path(default: "")
-h: help
-b: build embedded milvus(default: OFF)
                "
    exit 0
    ;;
  b)
    EMBEDDED_MILVUS="ON"
    ;;
  ?)
    echo "ERROR! unknown argument"
    exit 1
    ;;
  esac
done
echo "BUILD_TYPE: " $BUILD_TYPE
echo "CUSTOM_THIRDPARTY_PATH: " $CUSTOM_THIRDPARTY_PATH

pushd ${CMAKE_BUILD}
CMAKE_CMD="cmake \
-DCMAKE_BUILD_TYPE=${BUILD_TYPE} \
-DCMAKE_INSTALL_PREFIX=${OUTPUT_LIB} \
-DEMBEDDED_MILVUS=${EMBEDDED_MILVUS} \
-DCUSTOM_THIRDPARTY_DOWNLOAD_PATH=${CUSTOM_THIRDPARTY_PATH} ${SRC_DIR}"

unameOut="$(uname -s)"
if [[ ! ${jobs+1} ]]; then
  case "${unameOut}" in
      Linux*)     jobs=$(nproc);;
      Darwin*)    jobs=$(sysctl -n hw.physicalcpu);;
      *)          echo "UNKNOWN:${unameOut}"; exit 0;
  esac
fi


if [ "$MSYSTEM" == "MINGW64" ] ; then
  echo Using system rocksdb
else
  echo ${CMAKE_CMD}
  ${CMAKE_CMD}
  make -j ${jobs}
fi

go env -w CGO_CFLAGS="-I${OUTPUT_LIB}/include"
ldflags=""
if [ -f "${OUTPUT_LIB}/lib/librocksdb.a" ]; then
     case "${unameOut}" in
          Linux*)     ldflags="-L${OUTPUT_LIB}/lib -l:librocksdb.a -lstdc++ -lm -lz";;
          Darwin*)    ldflags="-L${OUTPUT_LIB}/lib -lrocksdb -stdlib=libc++ -lm -lz -lbz2 -ldl";;
          *)          echo "UNKNOWN:${unameOut}"; exit 0;
      esac
else
     case "${unameOut}" in
          Linux*)     ldflags="-L${OUTPUT_LIB}/lib64 -l:librocksdb.a -lstdc++ -lm -lz";;
          Darwin*)    ldflags="-L${OUTPUT_LIB}/lib64 -lrocksdb -stdlib=libc++ -lm -lz -lbz2 -ldl";;
          *)          echo "UNKNOWN:${unameOut}" ; exit 0;
      esac
fi

if [ "$MSYSTEM" == "MINGW64" ] ; then
  ldflags="-L${OUTPUT_LIB}/lib -lrocksdb -lstdc++ -lm -lz -lshlwapi -lrpcrt4"
fi


if [[ $(arch) == 'arm64' ]]; then
  go env -w GOARCH=arm64
fi

go env -w CGO_LDFLAGS="$ldflags" && GO111MODULE=on

go get github.com/tecbot/gorocksdb