package emissary.command.converter;
   
   import emissary.pickup.Priority;
   import emissary.pickup.PriorityDirectory;
   
   import org.apache.commons.lang3.StringUtils;
   import org.apache.commons.lang3.Strings;
   import picocli.CommandLine.ITypeConverter;
   
  import java.util.regex.Matcher;
  import java.util.regex.Pattern;
  
  public class PriorityDirectoryConverter implements ITypeConverter<PriorityDirectory> {
  
      public PriorityDirectoryConverter() {
          super();
      }
  
      public static final String PRIORITY_DIR_REGEX = ".*:\\d+$";
      private static final Pattern priorityDirRegex = Pattern.compile(PRIORITY_DIR_REGEX);
  
      @Override
      public PriorityDirectory convert(String value) {
          final String dirName;
          final int priority;
          Matcher matcher = priorityDirRegex.matcher(value);
          if (matcher.matches()) {
              dirName = StringUtils.substringBeforeLast(value, ":");
              priority = Integer.parseInt(StringUtils.substringAfterLast(value, ":"));
          } else {
              dirName = value;
              priority = Priority.DEFAULT;
          }
          return new PriorityDirectory(Strings.CS.appendIfMissing(dirName, "/"), priority);
      }
  }