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/*
 * SonarScanner CLI
 * Copyright (C) 2011-2024 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.sonarsource.scanner.cli;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

class Stats {
  private static final Logger LOG = LoggerFactory.getLogger(Stats.class);
  private long startTime;

  Stats start() {
    startTime = System.currentTimeMillis();
    return this;
  }

  Stats stop() {
    long stopTime = System.currentTimeMillis() - startTime;
    LOG.atInfo().addArgument(() -> formatTime(stopTime)).log("Total time: {}");
    return this;
  }

  static String formatTime(long time) {
    long h = time / (60 * 60 * 1000);
    long m = (time - h * 60 * 60 * 1000) / (60 * 1000);
    long s = (time - h * 60 * 60 * 1000 - m * 60 * 1000) / 1000;
    long ms = time % 1000;
    final String format;
    if (h > 0) {
      format = "%1$d:%2$02d:%3$02d.%4$03ds";
    } else if (m > 0) {
      format = "%2$d:%3$02d.%4$03ds";
    } else {
      format = "%3$d.%4$03ds";
    }
    return String.format(format, h, m, s, ms);
  }
}