/*
    * 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.
   */
  package org.apache.maven.cli;
  
  import java.io.IOException;
  import java.io.InputStream;
  import java.text.SimpleDateFormat;
  import java.util.Date;
  import java.util.Locale;
  import java.util.Properties;
  
  import org.apache.commons.lang3.StringUtils;
  import org.codehaus.plexus.util.Os;
  import org.slf4j.Logger;
  
  import static org.apache.maven.shared.utils.logging.MessageUtils.buffer;
  
  /**
   * Utility class used to report errors, statistics, application version info, etc.
   *
   * @author jdcasey
   */
  public final class CLIReportingUtils {
      // CHECKSTYLE_OFF: MagicNumber
      public static final long MB = 1024 * 1024;
  
      private static final long ONE_SECOND = 1000L;
  
      private static final long ONE_MINUTE = 60 * ONE_SECOND;
  
      private static final long ONE_HOUR = 60 * ONE_MINUTE;
  
      private static final long ONE_DAY = 24 * ONE_HOUR;
      // CHECKSTYLE_ON: MagicNumber
  
      public static final String BUILD_VERSION_PROPERTY = "version";
  
      public static String showVersion() {
          final String ls = System.lineSeparator();
          Properties properties = getBuildProperties();
          StringBuilder version = new StringBuilder(256);
          version.append(buffer().strong(createMavenVersionString(properties))).append(ls);
          version.append(reduce(properties.getProperty("distributionShortName") + " home: "
                          + System.getProperty("maven.home", "<unknown Maven " + "home>")))
                  .append(ls);
          version.append("Java version: ")
                  .append(System.getProperty("java.version", "<unknown Java version>"))
                  .append(", vendor: ")
                  .append(System.getProperty("java.vendor", "<unknown vendor>"))
                  .append(", runtime: ")
                  .append(System.getProperty("java.home", "<unknown runtime>"))
                  .append(ls);
          version.append("Default locale: ")
                  .append(Locale.getDefault())
                  .append(", platform encoding: ")
                  .append(System.getProperty("file.encoding", "<unknown encoding>"))
                  .append(ls);
          version.append("OS name: \"")
                  .append(Os.OS_NAME)
                  .append("\", version: \"")
                  .append(Os.OS_VERSION)
                  .append("\", arch: \"")
                  .append(Os.OS_ARCH)
                  .append("\", family: \"")
                  .append(Os.OS_FAMILY)
                  .append('\"');
          return version.toString();
      }
  
      public static String showVersionMinimal() {
          Properties properties = getBuildProperties();
          String version = reduce(properties.getProperty(BUILD_VERSION_PROPERTY));
          return (version != null ? version : "<version unknown>");
      }
  
      /**
       * Create a human readable string containing the Maven version, buildnumber, and time of build
       *
       * @param buildProperties The build properties
       * @return Readable build info
       */
      static String createMavenVersionString(Properties buildProperties) {
          String timestamp = reduce(buildProperties.getProperty("timestamp"));
         String version = reduce(buildProperties.getProperty(BUILD_VERSION_PROPERTY));
         String rev = reduce(buildProperties.getProperty("buildNumber"));
         String distributionName = reduce(buildProperties.getProperty("distributionName"));
 
         String msg = distributionName + " ";
         msg += (version != null ? version : "<version unknown>");
         if (rev != null || timestamp != null) {
             msg += " (";
             msg += (rev != null ? rev : "");
             if (StringUtils.isNotBlank(timestamp)) {
                 String ts = formatTimestamp(Long.parseLong(timestamp));
                 msg += (rev != null ? "; " : "") + ts;
             }
             msg += ")";
         }
         return msg;
     }
 
     private static String reduce(String s) {
         return (s != null ? (s.startsWith("${") && s.endsWith("}") ? null : s) : null);
     }
 
     static Properties getBuildProperties() {
         Properties properties = new Properties();
 
         try (InputStream resourceAsStream =
                 MavenCli.class.getResourceAsStream("/org/apache/maven/messages/build.properties")) {
 
             if (resourceAsStream != null) {
                 properties.load(resourceAsStream);
             }
         } catch (IOException e) {
             System.err.println("Unable determine version from JAR file: " + e.getMessage());
         }
 
         return properties;
     }
 
     public static void showError(Logger logger, String message, Throwable e, boolean showStackTrace) {
         if (showStackTrace) {
             logger.error(message, e);
         } else {
             logger.error(message);
 
             if (e != null) {
                 logger.error(e.getMessage());
 
                 for (Throwable cause = e.getCause();
                         cause != null && cause != cause.getCause();
                         cause = cause.getCause()) {
                     logger.error("Caused by: {}", cause.getMessage());
                 }
             }
         }
     }
 
     public static String formatTimestamp(long timestamp) {
         SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssXXX");
         return sdf.format(new Date(timestamp));
     }
 
     public static String formatDuration(long duration) {
         // CHECKSTYLE_OFF: MagicNumber
         long ms = duration % 1000;
         long s = (duration / ONE_SECOND) % 60;
         long m = (duration / ONE_MINUTE) % 60;
         long h = (duration / ONE_HOUR) % 24;
         long d = duration / ONE_DAY;
         // CHECKSTYLE_ON: MagicNumber
 
         String format;
         if (d > 0) {
             // Length 11+ chars
             format = "%d d %02d:%02d h";
         } else if (h > 0) {
             // Length 7 chars
             format = "%2$02d:%3$02d h";
         } else if (m > 0) {
             // Length 9 chars
             format = "%3$02d:%4$02d min";
         } else {
             // Length 7-8 chars
             format = "%4$d.%5$03d s";
         }
 
         return String.format(format, d, h, m, s, ms);
     }
 }