#!/bin/bash
set -x
set -e
PYTHON_BIN=python3
if ! command -v python3 >/dev/null 2>&1; then
  if ! command -v python >/dev/null 2>&1; then
    echo "please install python3"
    exit
  else
    PYTHON_BIN=python
  fi
fi
U_V1=`$PYTHON_BIN -V 2>&1|awk '{print $2}'|awk -F '.' '{print $1}'`
U_V2=`$PYTHON_BIN -V 2>&1|awk '{print $2}'|awk -F '.' '{print $2}'`
U_V3=`$PYTHON_BIN -V 2>&1|awk '{print $2}'|awk -F '.' '{print $3}'`

echo your python version is : "$U_V1.$U_V2.$U_V3"
if ! [ "${U_V1}" = 3 ] && [ "${U_V2}" > 6 ]; then
  echo "python version must > 3.6"
  exit
fi

PYTHON_CONFIG_CMD="python$U_V1.$U_V2-config"

if ! command -v ${PYTHON_CONFIG_CMD} >/dev/null 2>&1; then
  echo "please install python$U_V1.$U_V2-dev"
  exit
fi

#get python include path
PYTHON_INC_CONFIG=`${PYTHON_CONFIG_CMD} --includes | awk '{print $1}' |awk -F'-I' '{print $2}'`
if [ ! -d "${PYTHON_INC_CONFIG}" ]; then
  echo "${PYTHON_CONFIG_CMD} get python include path failed"
  exit -1
fi

# link python include path into workspace
pushd third_party
rm -f python_headers
ln -s ${PYTHON_INC_CONFIG} python_headers
popd

#get python link option
CONFIG=`${PYTHON_CONFIG_CMD} --ldflags` && NEWLINE="[\"${CONFIG}\"] + [\"-lpython$U_V1.$U_V2\"]"

# Compatible with MacOS
sed -e "s|PLACEHOLDER-PYTHON3.X-CONFIG|${NEWLINE}|g" BUILD.bazel > BUILD.bazel.tmp && mv BUILD.bazel.tmp BUILD.bazel
echo "done"

if [ ! -d "localdb" ]; then
    mkdir localdb
fi

if [ ! -d "log" ]; then
    mkdir log
fi