#!/bin/bash
if [ -z ${BRANCH} ]; then
    BRANCH="develop"
fi

PADDLE_ROOT="$( cd "$( dirname "${BASH_SOURCE[0]}")/../" && pwd )"
API_FILES=("CMakeLists.txt"
           "paddle/fluid/op_use_default_grad_op_maker.spec"
           "paddle/fluid/framework/operator.h"
           "paddle/fluid/framework/tensor.h"
           "paddle/fluid/framework/details/op_registry.h"
           "paddle/fluid/framework/grad_op_desc_maker.h"
           "paddle/fluid/framework/lod_tensor.h"
           "paddle/fluid/framework/selected_rows.h"
           "paddle/fluid/framework/op_desc.h"
           "paddle/fluid/framework/block_desc.h"
           "paddle/fluid/framework/var_desc.h"
           "paddle/fluid/framework/scope.h"
           "paddle/fluid/framework/ir/node.h"
           "paddle/fluid/framework/ir/graph.h"
           "paddle/fluid/framework/framework.proto"
           "python/requirements.txt"
           "python/paddle/fluid/__init__.py"
           "python/paddle/fluid/compiler.py"
           "python/paddle/fluid/parallel_executor.py"
           "python/paddle/fluid/framework.py"
           "python/paddle/fluid/backward.py"
           "paddle/fluid/operators/distributed/send_recv.proto.in"
           "paddle/fluid/framework/unused_var_check.cc")

approval_line=`curl -H "Authorization: token ${GITHUB_API_TOKEN}" https://api.github.com/repos/PaddlePaddle/Paddle/pulls/${GIT_PR_ID}/reviews?per_page=10000`
git_files=`git diff --numstat upstream/$BRANCH| wc -l`
git_count=`git diff --numstat upstream/$BRANCH| awk '{sum+=$1}END{print sum}'`
failed_num=0
echo_list=()


function check_approval(){
    person_num=`echo $@|awk '{for (i=2;i<=NF;i++)print $i}'`
    APPROVALS=`echo ${approval_line}|python ${PADDLE_ROOT}/tools/check_pr_approval.py $1 $person_num`
    if [ "${APPROVALS}" == "FALSE" ]; then
        add_failed $failed_num $echo_line
    fi
}


function add_failed(){
    failed_num=`expr $failed_num + 1`
    add_line=`echo $@|awk '{for (i=2;i<=NF;i++)print $i}'`
    echo_list=(${echo_list[@]}$1 "." $add_line)
} 


if [[ $git_files -gt 19 || $git_count -gt 999 ]];then
    echo_line="You must have Dianhai approval for change 20+ files or add than 1000+ lines of content.\n"
    check_approval 1 38231817
fi    

api_spec_diff=`python ${PADDLE_ROOT}/tools/diff_api.py ${PADDLE_ROOT}/paddle/fluid/API_DEV.spec.api  ${PADDLE_ROOT}/paddle/fluid/API_PR.spec.api` 
if [ "$api_spec_diff" != "" ]; then
    echo_line="You must have one RD (XiaoguangHu01 or lanxianghit or saxon-zh)approval for the api change for the management reason of API interface.\n"
    check_approval 1 46782768 47554610 2870059 
fi

api_doc_spec_diff=`python ${PADDLE_ROOT}/tools/diff_api.py ${PADDLE_ROOT}/paddle/fluid/API_DEV.spec.doc  ${PADDLE_ROOT}/paddle/fluid/API_PR.spec.doc` 
if [ "$api_doc_spec_diff" != "" ]; then
    echo_line="You must have one TPM (saxon-zh or Boyan-Liu) approval for the api change for the management reason of API document.\n"
    check_approval 1 31623103 2870059
fi


for API_FILE in ${API_FILES[*]}; do
  API_CHANGE=`git diff --name-only upstream/$BRANCH | grep "${API_FILE}" | grep -v "/CMakeLists.txt" || true`
  echo "checking ${API_FILE} change, PR: ${GIT_PR_ID}, changes: ${API_CHANGE}"
  if [ "${API_CHANGE}" ] && [ "${GIT_PR_ID}" != "" ]; then
      # NOTE: per_page=10000 should be ok for all cases, a PR review > 10000 is not human readable.
      # approval_user_list: XiaoguangHu01 46782768,Xreki 12538138,luotao1 6836917,sneaxiy 32832641,qingqing01 7845005,guoshengCS 14105589,heavengate 12605721,kuke 3064195,Superjomn 328693,lanxianghit 47554610,cyj1986 39645414,hutuxian 11195205,frankwhzhang 20274488,nepeplwu 45024560,Dianhai 38231817,JiabinYang 22361972,chenwhql 22561442,zhiqiu 6888866,seiriosPlus 5442383,gongweibao 10721757,saxon-zh 2870059,Boyan-Liu 2870059. 
      if [ "${API_FILE}" == "paddle/fluid/op_use_default_grad_op_maker.spec" ];then
          echo_line="You must have one RD (sneaxiy (Recommend) or luotao1) approval for op_use_default_grad_op_maker.spec, which manages the grad_op memory optimization.\n"
          check_approval 1 32832641 6836917
      elif [ "${API_FILE}" == "CMakeLists.txt" ];then
          echo_line="You must have one RD (luotao1 or XiaoguangHu01) approval for CMakeLists.txt, which manages the compilation parameter.\n"
          check_approval 1 6836917 46782768
      elif [ "${API_FILE}" == "python/paddle/fluid/__init__.py" ];then
          echo_line="You must have one RD (lanxianghit (Recommend) or luotao1) approval for the python/paddle/fluid/init.py, which manages the environment variables.\n"
          check_approval 1 6836917 47554610
      elif [ "${API_FILE}" == "python/requirements.txt" ];then
          echo_line="You must have one RD (JiabinYang (Recommend) or luotao1) approval for python/requirements.txt, which manages the third-party python package.\n"
          check_approval 1 6836917 22361972
      elif [ "${API_FILE}" == "paddle/fluid/operators/distributed/send_recv.proto.in" ];then
          echo_line="You must have one RD (gongweibao or seiriosPlus) approval for the paddle/fluid/operators/distributed/send_recv.proto.in, which manages the environment variables.\n"
          check_approval 1 10721757 5442383
      elif [ "${API_FILE}" == "paddle/fluid/framework/unused_var_check.cc" ];then
          echo_line="You must have one RD (zhiqiu (Recommend) , sneaxiy or luotao1) approval for the paddle/fluid/framework/unused_var_check.cc, which manages the white list of operators that have unused input variables. Before change the white list, please read the spicification [https://github.com/PaddlePaddle/Paddle/wiki/OP-Should-Not-Have-Unused-Input] and try to refine code first. \n"
          check_approval 1 6888866 32832641 6836917
      else
          echo_line="You must have one RD (XiaoguangHu01,Xreki,luotao1,sneaxiy) approval for ${API_FILE}, which manages the underlying code for fluid.\n"
          check_approval 1 3048612 46782768 12538138 6836917 32832641
      fi
  fi
done

HAS_CONST_CAST=`git diff -U0 upstream/$BRANCH |grep -o -m 1 "const_cast" || true`
if [ ${HAS_CONST_CAST} ] && [ "${GIT_PR_ID}" != "" ]; then
    echo_line="You must have one RD (XiaoguangHu01,Xreki,luotao1,sneaxiy) approval for the usage (either add or delete) of const_cast.\n"
    check_approval 1 3048612 46782768 12538138 6836917 32832641
fi

HAS_DEFINE_FLAG=`git diff -U0 upstream/$BRANCH |grep -o -m 1 "DEFINE_int32" |grep -o -m 1 "DEFINE_bool" | grep -o -m 1 "DEFINE_string" || true`
if [ ${HAS_DEFINE_FLAG} ] && [ "${GIT_PR_ID}" != "" ]; then
    echo_line="You must have one RD lanxianghit approval for the usage (either add or delete) of DEFINE_int32/DEFINE_bool/DEFINE_string flag.\n"
    check_approval 1 47554610 
fi

ALL_PADDLE_ENFORCE=`git diff -U0 upstream/$BRANCH |grep "+" |grep -zoE "PADDLE_ENFORCE\(.[^,\);]+.[^;]*\);\s" || true`
if [ "${ALL_PADDLE_ENFORCE}" != "" ] && [ "${GIT_PR_ID}" != "" ]; then
    echo_line="PADDLE_ENFORCE is not recommended. Please use PADDLE_ENFORCE_EQ/NE/GT/GE/LT/LE or PADDLE_ENFORCE_NOT_NULL or PADDLE_ENFORCE_CUDA_SUCCESS instead.\nYou must have one RD (chenwhql (Recommend) , luotao1 (Recommend) or lanxianghit) approval for the usage (either add or delete) of PADDLE_ENFORCE.\n${ALL_PADDLE_ENFORCE}\n"
    check_approval 1 6836917 47554610 22561442
fi

ALL_PADDLE_CHECK=`git diff -U0 upstream/$BRANCH |grep "+" |grep -zoE "(PADDLE_ENFORCE[A-Z_]{0,9}|PADDLE_THROW)\(.[^,\);]*.[^;]*\);\s" || true`
VALID_PADDLE_CHECK=`echo "$ALL_PADDLE_CHECK" | grep -zoE '(PADDLE_ENFORCE[A-Z_]{0,9}|PADDLE_THROW)\((.[^,;]+,)*.[^";]*(errors::).[^"]*".[^";]{20,}.[^;]*\);\s' || true`
INVALID_PADDLE_CHECK=`echo "$ALL_PADDLE_CHECK" |grep -vxF "$VALID_PADDLE_CHECK" || true`
if [ "${INVALID_PADDLE_CHECK}" != "" ] && [ "${GIT_PR_ID}" != "" ]; then
    echo_line="The error message you wrote in PADDLE_ENFORCE{_**} or PADDLE_THROW does not meet our error message writing specification. Possible errors include 1. the error message is empty / 2. the error message is too short / 3. the error type is not specified. Please read the specification [ https://github.com/PaddlePaddle/Paddle/wiki/Paddle-Error-Message-Writing-Specification ], then refine the error message. If it is a mismatch, please specify chenwhql (Recommend), luotao1 or lanxianghit review and approve.\nThe PADDDLE_ENFORCE or PADDLE_THROW entries that do not meet the specification are as follows:\n${INVALID_PADDLE_CHECK}\n"
    check_approval 1 6836917 47554610 22561442
fi

NEW_OP_ADDED=`git diff --name-only --diff-filter=A upstream/$BRANCH |grep -oE ".+_op..*" || true`
if [ "${NEW_OP_ADDED}" != "" ] && [ "${GIT_PR_ID}" != "" ]; then
    GET_KERNEL_TYPE_FUNC_CNT=`git diff -U0 --diff-filter=A upstream/$BRANCH |grep "+" |grep -czoE "GetExpectedKernelType[(][^(){}]+[)][^{]+[{][^}]+[}]" || true`
    INDICATE_VAR_DTYPE_CNT=`git diff -U0 --diff-filter=A upstream/$BRANCH |grep "+" |grep -co "IndicateVarDataType" || true`
    if [ ${GET_KERNEL_TYPE_FUNC_CNT} -gt ${INDICATE_VAR_DTYPE_CNT} ]; then
        echo_line="If you override GetExpectedKernelType method of OperatorWithKernel, please use OperatorWithKernel::IndicateVarDataType() method to get specific input variable's dtype, which checked whether the input variable is initialized (The details in https://github.com/PaddlePaddle/FluidDoc/pull/1527). If you don't use this method to check, you must have one RD (chenwhql (Recommend) , luotao1 or lanxianghit) approval for the usage of other methods.\n"
        check_approval 1 6836917 47554610 22561442
    fi
fi

if [ -n "${echo_list}" ];then
  echo "****************"
  echo -e "${echo_list[@]}"
  echo "There are ${failed_num} approved errors."
  echo "****************"
fi

python ${PADDLE_ROOT}/tools/diff_api.py ${PADDLE_ROOT}/paddle/fluid/API_DEV.spec  ${PADDLE_ROOT}/paddle/fluid/API_PR.spec

if [ -n "${echo_list}" ]; then
  exit 1
fi