#!/usr/bin/env python
# Copyright 2017 gRPC authors.
#
# 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.

"""Helper to upload Jenkins test results to BQ"""

from __future__ import print_function

import os
import six
import sys
import time
import uuid

gcp_utils_dir = os.path.abspath(os.path.join(
    os.path.dirname(__file__), '../../gcp/utils'))
sys.path.append(gcp_utils_dir)
import big_query_utils

_DATASET_ID = 'jenkins_test_results'
_DESCRIPTION = 'Test results from master job run on Jenkins'
# 90 days in milliseconds
_EXPIRATION_MS = 90 * 24 * 60 * 60 * 1000
_PARTITION_TYPE = 'DAY'
_PROJECT_ID = 'grpc-testing'
_RESULTS_SCHEMA = [
  ('job_name', 'STRING', 'Name of Jenkins job'),
  ('build_id', 'INTEGER', 'Build ID of Jenkins job'),
  ('build_url', 'STRING', 'URL of Jenkins job'),
  ('test_name', 'STRING', 'Individual test name'),
  ('language', 'STRING', 'Language of test'),
  ('platform', 'STRING', 'Platform used for test'),
  ('config', 'STRING', 'Config used for test'),
  ('compiler', 'STRING', 'Compiler used for test'),
  ('iomgr_platform', 'STRING', 'Iomgr used for test'),
  ('result', 'STRING', 'Test result: PASSED, TIMEOUT, FAILED, or SKIPPED'),
  ('timestamp', 'TIMESTAMP', 'Timestamp of test run'),
  ('elapsed_time', 'FLOAT', 'How long test took to run'),
  ('cpu_estimated', 'FLOAT', 'Estimated CPU usage of test'),
  ('cpu_measured', 'FLOAT', 'Actual CPU usage of test'),
  ('return_code', 'INTEGER', 'Exit code of test'),
]


def _get_build_metadata(test_results):
  """Add Jenkins/Kokoro build metadata to test_results based on environment
  variables set by Jenkins/Kokoro.
  """
  build_id = os.getenv('BUILD_ID') or os.getenv('KOKORO_BUILD_NUMBER')
  build_url = os.getenv('BUILD_URL') or os.getenv('KOKORO_BUILD_URL')
  job_name = os.getenv('JOB_BASE_NAME') or os.getenv('KOKORO_JOB_NAME')

  if build_id:
    test_results['build_id'] = build_id
  if build_url:
    test_results['build_url'] = build_url
  if job_name:
    test_results['job_name'] = job_name


def upload_results_to_bq(resultset, bq_table, args, platform):
  """Upload test results to a BQ table.

  Args:
      resultset: dictionary generated by jobset.run
      bq_table: string name of table to create/upload results to in BQ
      args: args in run_tests.py, generated by argparse
      platform: string name of platform tests were run on
  """
  bq = big_query_utils.create_big_query()
  big_query_utils.create_partitioned_table(bq, _PROJECT_ID, _DATASET_ID, bq_table, _RESULTS_SCHEMA, _DESCRIPTION,
                                           partition_type=_PARTITION_TYPE, expiration_ms= _EXPIRATION_MS)

  for shortname, results in six.iteritems(resultset):
    for result in results:
      test_results = {}
      _get_build_metadata(test_results)
      test_results['compiler'] = args.compiler
      test_results['config'] = args.config
      test_results['cpu_estimated'] = result.cpu_estimated
      test_results['cpu_measured'] = result.cpu_measured
      test_results['elapsed_time'] = '%.2f' % result.elapsed_time
      test_results['iomgr_platform'] = args.iomgr_platform
      # args.language is a list, but will always have one element in the contexts
      # this function is used.
      test_results['language'] = args.language[0]
      test_results['platform'] = platform
      test_results['result'] = result.state
      test_results['return_code'] = result.returncode
      test_results['test_name'] = shortname
      test_results['timestamp'] = time.strftime('%Y-%m-%d %H:%M:%S')

      row = big_query_utils.make_row(str(uuid.uuid4()), test_results)

      # TODO(jtattermusch): rows are inserted one by one, very inefficient
      max_retries = 3
      for attempt in range(max_retries):
        if big_query_utils.insert_rows(bq, _PROJECT_ID, _DATASET_ID, bq_table, [row]):
          break
        else:
          if attempt < max_retries - 1:
            print('Error uploading result to bigquery, will retry.')
          else:
            print('Error uploading result to bigquery, all attempts failed.')
            sys.exit(1)