#!/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.

# Exit immediately for non zero status
set +e

SOURCE="${BASH_SOURCE[0]}"
# fix on zsh environment
if [[ "$SOURCE" == "" ]]; then
  SOURCE="$0"
fi

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 $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located
done
ROOT_DIR="$( cd -P "$( dirname "$SOURCE" )/.." && pwd )"

unameOut="$(uname -s)"

case "${unameOut}" in
    Linux*)
      LIBJEMALLOC=$PWD/internal/core/output/lib/libjemalloc.so
      if test -f "$LIBJEMALLOC"; then
        export LD_PRELOAD="$LIBJEMALLOC"
      else
        echo "WARN: Cannot find $LIBJEMALLOC"
      fi
      export PKG_CONFIG_PATH="${PKG_CONFIG_PATH}:$ROOT_DIR/internal/core/output/lib/pkgconfig:$ROOT_DIR/internal/core/output/lib64/pkgconfig"
      export LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:$ROOT_DIR/internal/core/output/lib:$ROOT_DIR/internal/core/output/lib64"
      export RPATH=$LD_LIBRARY_PATH;;
    Darwin*)
      # detect llvm version by valid list
      for llvm_version in 17 16 15 14 NOT_FOUND ; do
        if brew ls --versions llvm@${llvm_version} > /dev/null; then
          break
        fi
      done
      if [ "${llvm_version}" = "NOT_FOUND" ] ; then
        echo "valid llvm(>=14) not installed"
        exit 1
      fi
      llvm_prefix="$(brew --prefix llvm@${llvm_version})"
      export CLANG_TOOLS_PATH="${llvm_prefix}/bin"
      export CC="ccache ${llvm_prefix}/bin/clang"
      export CXX="ccache ${llvm_prefix}/bin/clang++"
      export ASM="${llvm_prefix}/bin/clang"
      export CFLAGS="-Wno-deprecated-declarations -I$(brew --prefix libomp)/include"
      export CXXFLAGS=${CFLAGS}
      export LDFLAGS="-L$(brew --prefix libomp)/lib"

      export PKG_CONFIG_PATH="${PKG_CONFIG_PATH}:$ROOT_DIR/internal/core/output/lib/pkgconfig"
      export DYLD_LIBRARY_PATH=$ROOT_DIR/internal/core/output/lib
      export RPATH=$DYLD_LIBRARY_PATH;;
    MINGW*)
      extra_path=$(cygpath -w "$ROOT_DIR/internal/core/output/lib")
      export PKG_CONFIG_PATH="${PKG_CONFIG_PATH};${extra_path}\pkgconfig"
      export LD_LIBRARY_PATH=$extra_path
      export RPATH=$LD_LIBRARY_PATH;;
    *)
      echo "does not supported"
esac