#!/bin/bash
# Copyright(C) Huawei Technologies Co.,Ltd. 2020-2022. All rights reserved.
#
# 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.
# ============================================================================

set -e

umask 077
CUR_DIR=$(dirname "$(readlink -f $0)")
TOP_DIR=$(realpath "${CUR_DIR}"/../../..)
export PATH="${GOPATH}/bin/:$PATH"
export GO111MODULE=on
export GONOSUMDB="*"

function filter_cov_by_tested_pkgs() {
  local tested_pkgs
  tested_pkgs=$(go list -buildvcs=false -f '{{if .TestGoFiles}}{{.ImportPath}}{{end}}' "${TOP_DIR}"/...)
  awk -v pkgs="$tested_pkgs" '
    NR==1 {print; next}
    {
      file=$1; sub(/:[0-9].*/, "", file)
      n=split(file, p, "/"); pkg=""
      for(i=1;i<n;i++) pkg=pkg p[i]"/"; sub(/\/$/,"", pkg)
      found=0; split(pkgs, arr, "\n"); for(k in arr) {if(arr[k]==pkg){found=1;break}}
      if (found) print
    }
  ' cov.out > cov_filtered.out
}

function execute_test() {
  cd ${TOP_DIR}
  if ! gotestsum --junitfile "${TOP_DIR}"/test/unit-tests.xml --jsonfile test.jsonl \
    -- -mod=mod -count=1 -gcflags=-l -v -coverprofile cov.out "${TOP_DIR}"/...; then
    echo '****** go test cases error! ******'
    exit 1
  fi

  filter_cov_by_tested_pkgs

  ${GOPATH}/bin/gocov convert cov.out | ${GOPATH}/bin/gocov-html > "$file_detail_output"
  total_coverage_before_filtered=$(go tool cover -func=cov.out | grep "total:" | awk '{print $3}'| sed 's/%//')
  total_coverage=$(go tool cover -func=cov_filtered.out | grep "total:" | awk '{print $3}'| sed 's/%//')
  # round up
  coverage=$(echo "$total_coverage" | awk '{if ($1 >= 0) print ($1 == int($1)) ? int($1) : int($1) + 1;\
                                        else print ($1 == int($1)) ? int($1) : int($1)}')

  if [[ $coverage -ge 76 ]]; then
    echo "coverage passed: $coverage%"
    exit 0
  else
    echo "coverage failed: $coverage%, it needs to be greater than 80%."
    exit 1
  fi
}

file_detail_output="${TOP_DIR}/test/api.html"

echo "************************************* Start LLT Test *************************************"
mkdir -p "${TOP_DIR}"/test/
cd "${TOP_DIR}"/test/
if [ -f "$file_detail_output" ]; then
  rm -rf $file_detail_output
fi
execute_test

echo "************************************* End   LLT Test *************************************"