#!/usr/bin/env python
# Copyright 2016 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.

# Use to patch schema of existing scenario results tables (after adding fields).

from __future__ import print_function

import argparse
import calendar
import json
import os
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

_PROJECT_ID = 'grpc-testing'


def _patch_results_table(dataset_id, table_id):
    bq = big_query_utils.create_big_query()
    with open(os.path.dirname(__file__) + '/scenario_result_schema.json',
              'r') as f:
        table_schema = json.loads(f.read())
    desc = 'Results of performance benchmarks.'
    return big_query_utils.patch_table(bq, _PROJECT_ID, dataset_id, table_id,
                                       table_schema)


argp = argparse.ArgumentParser(
    description='Patch schema of scenario results table.')
argp.add_argument(
    '--bq_result_table',
    required=True,
    default=None,
    type=str,
    help='Bigquery "dataset.table" to patch.')

args = argp.parse_args()

dataset_id, table_id = args.bq_result_table.split('.', 2)

_patch_results_table(dataset_id, table_id)
print('Successfully patched schema of %s.\n' % args.bq_result_table)