/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

#include <time.h>

#include "date_utils.hpp"

using std::string;

using namespace mesos::internal;


// Static fields in DateUtils
bool DateUtils::useMockDate = false;
string DateUtils::mockDate = "";


// Get the current date in the format used for Mesos IDs (YYYYMMDDhhmm).
string DateUtils::currentDate()
{
  if (useMockDate) {
    return mockDate;
  } else {
    time_t rawtime;
    struct tm* timeinfo;
    time(&rawtime);
    timeinfo = localtime(&rawtime);
    char date[32];
    strftime(date, sizeof(date), "%Y%m%d%H%M", timeinfo);
    return date;
  }
}


// Unit test utility method that makes this class return a fixed string
// as the date instead of looking up the current time.
void DateUtils::setMockDate(string date)
{
  useMockDate = true;
  mockDate = date;
}


// Disable usage of the mock date set through setMockDate.
void DateUtils::clearMockDate()
{
  useMockDate = false;
  mockDate = "";
}