package org.apache.maven.scm.provider.vss.commands;
   
   /*
    * 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.
   */
  
  import org.apache.maven.scm.ScmException;
  import org.apache.maven.scm.provider.vss.repository.VssScmProviderRepository;
  
  import java.io.File;
  import java.text.DateFormat;
  import java.text.ParseException;
  import java.util.Calendar;
  import java.util.Date;
  import java.util.GregorianCalendar;
  
  
  /**
   * @author <a href="mailto:triek@thrx.de">Thorsten Riek</a>
   *
   */
  public class VssParameterContext
  {
  
      private String vssPath = null;
  
      private String autoResponse;
  
      private String ssDir;
  
      private String vssLogin;
  
      private String comment;
  
      private String user;
  
      private String fromLabel;
  
      private String toLabel;
  
      private boolean quiet;
  
      private boolean recursive;
  
      private boolean writable;
  
      private String label;
  
      private String style;
  
      private String version;
  
      private String date;
  
      private String localPath;
  
      private String timestamp;
  
      /**
       * Behaviour for writable files
       */
      private String writableFiles = null;
  
      /**
       * From date
       */
      private String fromDate = null;
  
      /**
       * To date
       */
      private String toDate = null;
  
      /**
       * Number of days offset for History
       */
      private int numDays = Integer.MIN_VALUE;
  
      /**
       * Get local copy for checkout defaults to true
       */
      private boolean getLocalCopy = true;
  
      /**
      * Date format for History
      */
     private DateFormat dateFormat = DateFormat
         .getDateInstance( DateFormat.SHORT );
 
     private String outputFileName;
 
     public static VssParameterContext getInstance( Object obj )
     {
         return new VssParameterContext( (VssScmProviderRepository) obj );
     }
 
     public VssParameterContext( VssScmProviderRepository repo )
     {
         autoResponse = System.getProperty( "maven.scm.autoResponse" );
         this.ssDir = repo.getVssdir();
         this.user = repo.getUser();
 //        this.vssLogin = this.user + (repos.getPassword() == null ? "" : ","+repos.getPassword());
     }
 
     /**
      * Builds and returns the -G- flag if required.
      *
      * @return An empty string if get local copy is true.
      */
     public String getGetLocalCopy()
     {
         return ( !getLocalCopy ) ? VssConstants.FLAG_NO_GET : "";
     }
 
     /**
      * Calculate the start date for version comparison.
      * <p/>
      * Calculate the date numDay days earlier than startdate.
      *
      * @param startDate The start date.
      * @param daysToAdd The number of days to add.
      * @return The calculated date.
      * @throws ParseException
      */
     private String calcDate( String startDate, int daysToAdd )
         throws ParseException
     {
         Date currentDate = new Date();
         Calendar calendar = new GregorianCalendar();
         currentDate = dateFormat.parse( startDate );
         calendar.setTime( currentDate );
         calendar.add( Calendar.DATE, daysToAdd );
         return dateFormat.format( calendar.getTime() );
     }
 
     /**
      * Gets the value set for the FileTimeStamp. if it equals "current" then we
      * return -GTC if it equals "modified" then we return -GTM if it equals
      * "updated" then we return -GTU otherwise we return -GTC
      *
      * @return The default file time flag, if not set.
      */
     public String getFileTimeStamp()
     {
         if ( timestamp == null )
         {
             return "";
         }
         return timestamp;
     }
 
     /**
      * Gets the localpath string. "-GLc:\source"
      * <p/>
      * The localpath is created if it didn't exist.
      *
      * @return An empty string if localpath is not set.
      */
     public String getLocalpath()
         throws ScmException
     {
         String lclPath = ""; // set to empty str if no local path return
         if ( localPath != null )
         {
             // make sure m_LocalDir exists, create it if it doesn't
             File dir = new File( localPath );
             if ( !dir.exists() )
             {
                 boolean done = dir.mkdirs();
                 if ( !done )
                 {
                     String msg = "Directory " + localPath + " creation was not " + "successful for an unknown reason";
                     throw new ScmException( msg );
                 }
 //                getLogger().info("Created dir: " + dir.getAbsolutePath());
             }
             lclPath = VssConstants.FLAG_OVERRIDE_WORKING_DIR + localPath;
         }
         return lclPath;
     }
 
     /**
      * Gets the label string. "-Lbuild1" Max label length is 32 chars
      *
      * @return An empty string if label is not set.
      */
     public String getLabel()
     {
         String shortLabel = "";
         if ( label != null && label.length() > 0 )
         {
             shortLabel = VssConstants.FLAG_LABEL + getShortLabel();
         }
         return shortLabel;
     }
 
     /**
      * Gets the version string. Returns the first specified of version "-V1.0",
      * date "-Vd01.01.01", label "-Vlbuild1".
      *
      * @return An empty string if a version, date and label are not set.
      */
     public String getVersionDateLabel()
     {
         String versionDateLabel = "";
         if ( version != null )
         {
             versionDateLabel = VssConstants.FLAG_VERSION + version;
         }
         else if ( date != null )
         {
             versionDateLabel = VssConstants.FLAG_VERSION_DATE + date;
         }
         else
         {
             // Use getShortLabel() so labels longer then 30 char are truncated
             // and the user is warned
             String shortLabel = getShortLabel();
             if ( shortLabel != null && !shortLabel.equals( "" ) )
             {
                 versionDateLabel = VssConstants.FLAG_VERSION_LABEL + shortLabel;
             }
         }
         return versionDateLabel;
     }
 
     /**
      * Gets the version string.
      *
      * @return An empty string if a version is not set.
      */
     public String getVersion()
     {
         return version != null ? VssConstants.FLAG_VERSION + version : "";
     }
 
     /**
      * Return at most the 30 first chars of the label, logging a warning message
      * about the truncation
      *
      * @return at most the 30 first chars of the label
      */
     private String getShortLabel()
     {
         String shortLabel;
         if ( label != null && label.length() > 31 )
         {
             shortLabel = this.label.substring( 0, 30 );
 //            getLogger().warn(
 //                    "Label is longer than 31 characters, truncated to: "
 //                            + shortLabel);
         }
         else
         {
             shortLabel = label;
         }
         return shortLabel;
     }
 
     /**
      * Gets the style string. "-Lbuild1"
      *
      * @return An empty string if label is not set.
      */
     public String getStyle()
     {
         return style != null ? style : "";
     }
 
     /**
      * Gets the recursive string. "-R"
      *
      * @return An empty string if recursive is not set or is false.
      */
     public String getRecursive()
     {
         return recursive ? VssConstants.FLAG_RECURSION : "";
     }
 
     /**
      * Gets the writable string. "-W"
      *
      * @return An empty string if writable is not set or is false.
      */
     public String getWritable()
     {
         return writable ? VssConstants.FLAG_WRITABLE : "";
     }
 
     /**
      * Gets the quiet string. -O-
      *
      * @return An empty string if quiet is not set or is false.
      */
     public String getQuiet()
     {
         return quiet ? VssConstants.FLAG_QUIET : "";
     }
 
     public String getVersionLabel()
     {
         if ( fromLabel == null && toLabel == null )
         {
             return "";
         }
         if ( fromLabel != null && toLabel != null )
         {
             if ( fromLabel.length() > 31 )
             {
                 fromLabel = fromLabel.substring( 0, 30 );
 //                getLogger().warn(
 //                        "FromLabel is longer than 31 characters, truncated to: "
 //                                + fromLabel);
             }
             if ( toLabel.length() > 31 )
             {
                 toLabel = toLabel.substring( 0, 30 );
 //                getLogger().warn(
 //                        "ToLabel is longer than 31 characters, truncated to: "
 //                                + toLabel);
             }
             return VssConstants.FLAG_VERSION_LABEL + toLabel + VssConstants.VALUE_FROMLABEL + fromLabel;
         }
         else if ( fromLabel != null )
         {
             if ( fromLabel.length() > 31 )
             {
                 fromLabel = fromLabel.substring( 0, 30 );
 //                getLogger().warn(
 //                        "FromLabel is longer than 31 characters, truncated to: "
 //                                + fromLabel);
             }
             return VssConstants.FLAG_VERSION + VssConstants.VALUE_FROMLABEL + fromLabel;
         }
         else
         {
             if ( toLabel.length() > 31 )
             {
                 toLabel = toLabel.substring( 0, 30 );
 //                getLogger().warn(
 //                        "ToLabel is longer than 31 characters, truncated to: "
 //                                + toLabel);
             }
             return VssConstants.FLAG_VERSION_LABEL + toLabel;
         }
     }
 
     /**
      * Gets the user string. "-Uusername"
      *
      * @return An empty string if user is not set.
      */
     public String getUser()
     {
         return user != null ? VssConstants.FLAG_USER + user : "";
     }
 
     /**
      * Gets the comment string. "-Ccomment text"
      *
      * @return A comment of "-" if comment is not set.
      */
     public String getComment()
     {
         return comment != null ? VssConstants.FLAG_COMMENT + comment : VssConstants.FLAG_COMMENT + "-";
     }
 
     /**
      * Gets the login string. This can be user and password, "-Yuser,password"
      * or just user "-Yuser".
      *
      * @return An empty string if login is not set.
      */
     public String getLogin()
     {
         return vssLogin != null ? ( VssConstants.FLAG_LOGIN + vssLogin ) : "";
     }
 
     /**
      * Gets the auto response string. This can be Y "-I-Y" or N "-I-N".
      *
      * @return The default value "-I-" if autoresponse is not set.
      */
     public String getAutoresponse()
     {
         if ( autoResponse == null )
         {
             return VssConstants.FLAG_AUTORESPONSE_DEF;
         }
         else if ( autoResponse.equalsIgnoreCase( "Y" ) )
         {
             return VssConstants.FLAG_AUTORESPONSE_YES;
         }
         else if ( autoResponse.equalsIgnoreCase( "N" ) )
         {
             return VssConstants.FLAG_AUTORESPONSE_NO;
         }
         else
         {
             return VssConstants.FLAG_AUTORESPONSE_DEF;
         }
     }
 
     /**
      * Gets the sscommand string. "ss" or "c:\path\to\ss"
      *
      * @return The path to ss.exe or just ss if sscommand is not set.
      */
     public String getSSCommand()
     {
         if ( ssDir == null )
         {
             return VssConstants.SS_EXE;
         }
         return ssDir.endsWith( File.separator ) ? ssDir + VssConstants.SS_EXE : ssDir + File.separator
             + VssConstants.SS_EXE;
     }
 
     public String getVssPath()
     {
         return vssPath;
     }
 
 
     /**
      * Gets the Version date string.
      *
      * @return An empty string if neither Todate or from date are set.
      * @throws ScmException
      */
     public String getVersionDate()
         throws ScmException
     {
         if ( fromDate == null && toDate == null && numDays == Integer.MIN_VALUE )
         {
             return "";
         }
         if ( fromDate != null && toDate != null )
         {
             return VssConstants.FLAG_VERSION_DATE + toDate + VssConstants.VALUE_FROMDATE + fromDate;
         }
         else if ( toDate != null && numDays != Integer.MIN_VALUE )
         {
             try
             {
                 return VssConstants.FLAG_VERSION_DATE + toDate + VssConstants.VALUE_FROMDATE
                     + calcDate( toDate, numDays );
             }
             catch ( ParseException ex )
             {
                 String msg = "Error parsing date: " + toDate;
                 throw new ScmException( msg );
             }
         }
         else if ( fromDate != null && numDays != Integer.MIN_VALUE )
         {
             try
             {
                 return VssConstants.FLAG_VERSION_DATE + calcDate( fromDate, numDays ) + VssConstants.VALUE_FROMDATE
                     + fromDate;
             }
             catch ( ParseException ex )
             {
                 String msg = "Error parsing date: " + fromDate;
                 throw new ScmException( msg );
             }
         }
         else
         {
             return fromDate != null ? VssConstants.FLAG_VERSION + VssConstants.VALUE_FROMDATE + fromDate
                             : VssConstants.FLAG_VERSION_DATE + toDate;
         }
     }
 
     /**
      * Gets the output file string. "-Ooutput.file"
      *
      * @return An empty string if user is not set.
      */
     public String getOutput()
     {
         return outputFileName != null ? VssConstants.FLAG_OUTPUT + outputFileName : "";
     }
 
     /**
      * Gets the value to determine the behaviour when encountering writable
      * files.
      *
      * @return An empty String, if not set.
      */
     public String getWritableFiles()
     {
         // FIXME: Fix this
         if ( writableFiles == null )
         {
             return "";
         }
         return writableFiles;
     }
 
 }