package org.apache.maven.scm.provider.svn.repository;
   
   /*
    * 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.provider.ScmProviderRepository;
  import org.apache.maven.scm.provider.ScmProviderRepositoryWithHost;
  import org.apache.maven.scm.provider.svn.SvnTagBranchUtils;
  
  /**
   * @author <a href="mailto:evenisse@apache.org">Emmanuel Venisse</a>
   *
   */
  public class SvnScmProviderRepository
      extends ScmProviderRepositoryWithHost
  {
      /** */
      private String url;
  
      private String protocol;
  
      /**
       * The base directory for any tags. Can be relative to the repository URL or an absolute URL.
       */
      private String tagBase;
  
      /**
       * The base directory for any branches. Can be relative to the repository URL or an absolute URL.
       */
      private String branchBase;
  
      public SvnScmProviderRepository( String url )
      {
          parseUrl( url );
  
          tagBase = SvnTagBranchUtils.resolveTagBase( url );
  
          branchBase = SvnTagBranchUtils.resolveBranchBase( url );
      }
  
      public SvnScmProviderRepository( String url, String user, String password )
      {
          this( url );
  
          setUser( user );
  
          setPassword( password );
      }
  
      public String getUrl()
      {
          return url;
      }
  
      /**
       * Returns the url/directory to be used when tagging this repository.
       */
      public String getTagBase()
      {
          return tagBase;
      }
  
      /**
       * Sets the url/directory to be used when tagging this repository.
       * The TagBase is a way to override the default tag location for the
       * repository.  The default tag location is automatically determined
       * for repositories in the standard subversion layout (with /tags /branches /trunk).
       * Specify this value only if the repository is using a directory other than "/tags" for tagging.
       *
       * @param tagBase an absolute or relative url to the base directory to create tags in.
       *                URL should be in a format that svn client understands, not the scm url format.
       */
      public void setTagBase( String tagBase )
      {
          this.tagBase = tagBase;
      }
  
      /**
       * Returns the url/directory to be used when tagging this repository.
       */
      public String getBranchBase()
      {
          return branchBase;
     }
 
     /**
      * Sets the url/directory to be used when branching this repository.
      * The BranchBase is a way to override the default branch location for the
      * repository.  The default branch location is automatically determined
      * for repositories in the standard subversion layout (with /tags /branches /trunk).
      * Specify this value only if the repository is using a directory other than "/branches" for branching.
      *
      * @param branchBase an absolute or relative url to the base directory to create branch in.
      *                   URL should be in a format that svn client understands, not the scm url format.
      */
     public void setBranchBase( String branchBase )
     {
         this.branchBase = branchBase;
     }
 
     private void setProtocol( String protocol )
     {
         this.protocol = protocol;
     }
 
     /**
      * Get the protocol used in this repository (file://, http://, https://,...)
      *
      * @return the protocol
      */
     public String getProtocol()
     {
         return protocol;
     }
 
     private void parseUrl( String url )
     {
         if ( url.startsWith( "file" ) )
         {
             setProtocol( "file://" );
         }
         else if ( url.startsWith( "https" ) )
         {
             setProtocol( "https://" );
         }
         else if ( url.startsWith( "http" ) )
         {
             setProtocol( "http://" );
         }
         else if ( url.startsWith( "svn+" ) )
         {
             setProtocol( url.substring( 0, url.indexOf( "://" ) + 3 ) );
         }
         else if ( url.startsWith( "svn" ) )
         {
             setProtocol( "svn://" );
         }
 
         if ( getProtocol() == null )
         {
             return;
         }
 
         String urlPath = url.substring( getProtocol().length() );
 
         int indexAt = urlPath.indexOf( '@' );
 
         if ( indexAt > 0 && !getProtocol().startsWith( "svn+" ) )
         {
             String userPassword = urlPath.substring( 0, indexAt );
             if ( userPassword.indexOf( ':' ) < 0 )
             {
                 setUser( userPassword );
             }
             else
             {
                 setUser( userPassword.substring( 0, userPassword.indexOf( ':' ) ) );
                 setPassword( userPassword.substring( userPassword.indexOf( ':' ) + 1 ) );
             }
 
             urlPath = urlPath.substring( indexAt + 1 );
 
             this.url = getProtocol() + urlPath;
         }
         else
         {
             this.url = getProtocol() + urlPath;
         }
 
         if ( !"file://".equals( getProtocol() ) )
         {
             int indexSlash = urlPath.indexOf( '/' );
 
             String hostPort = urlPath;
 
             if ( indexSlash > 0 )
             {
                 hostPort = urlPath.substring( 0, indexSlash );
             }
 
             int indexColon = hostPort.indexOf( ':' );
 
             if ( indexColon > 0 )
             {
                 setHost( hostPort.substring( 0, indexColon ) );
                 setPort( Integer.parseInt( hostPort.substring( indexColon + 1 ) ) );
             }
             else
             {
                 setHost( hostPort );
             }
         }
     }
 
     /** {@inheritDoc} */
     public ScmProviderRepository getParent()
     {
         String newUrl = getUrl().substring( getProtocol().length() );
 
         while ( newUrl.endsWith( "/." ) )
         {
             newUrl = newUrl.substring( 0, newUrl.length() - 2 );
         }
 
         while ( newUrl.endsWith( "/" ) )
         {
             newUrl = newUrl.substring( 0, newUrl.length() - 1 );
         }
 
         int i = newUrl.lastIndexOf( '/' );
 
         if ( i < 0 )
         {
             return null;
         }
         newUrl = newUrl.substring( 0, i );
 
         return new SvnScmProviderRepository( getProtocol() + newUrl, getUser(), getPassword() );
     }
 
     /** {@inheritDoc} */
     public String getRelativePath( ScmProviderRepository ancestor )
     {
         if ( ancestor instanceof SvnScmProviderRepository )
         {
             SvnScmProviderRepository svnAncestor = (SvnScmProviderRepository) ancestor;
 
             String path = getUrl().replaceFirst( svnAncestor.getUrl() + "/", "" );
 
             if ( !path.equals( getUrl() ) )
             {
                 return path;
             }
         }
         return null;
     }
 
     /** {@inheritDoc} */
     public String toString()
     {
         return getUrl();
     }
 
 }