/*
    * 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.scm.provider.svn.repository;
  
  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('@');
 
         // a file:// URL may contain userinfo according to RFC 8089, but our implementation is broken
         // extract user information, broken see SCM-909
         if (indexAt > 0 && !getProtocol().startsWith("svn+") && !getProtocol().equals("file://")) {
             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();
     }
 }