package org.kuali.maven.plugin.ksite.mojo;
   
   import org.apache.commons.lang.StringUtils;
   import org.apache.maven.model.DistributionManagement;
   import org.apache.maven.model.Site;
   import org.apache.maven.plugin.AbstractMojo;
   import org.apache.maven.plugin.MojoExecutionException;
   import org.apache.maven.plugin.MojoFailureException;
   import org.apache.maven.project.MavenProject;
  import org.kuali.maven.common.SiteContext;
  import org.kuali.maven.common.UrlBuilder;
  
  /**
   * This plugin organizes/standardizes the maven site publication process for the Kuali organization
   *
   * @goal updatesiteproperties
   * @phase pre-site
   */
  public class KualiSiteMojo extends AbstractMojo implements SiteContext {
  
      /**
       * The prefix into the bucket when downloading a snapshot version
       *
       * @parameter expression="${downloadSnapshotPrefix}" default-value="snapshot"
       */
      private String downloadSnapshotPrefix;
  
      /**
       * The prefix into the bucket when downloading a release version
       *
       * @parameter expression="${downloadReleasePrefix}" default-value="release"
       */
      private String downloadReleasePrefix;
  
      /**
       * The protocol used when publishing the web site
       *
       * @parameter expression="${publishUrlProtocol}" default-value="s3"
       */
      private String publishUrlProtocol;
  
      /**
       * The protocol for the public facing website
       *
       * @parameter expression="${publicUrlProtocol}" default-value="http"
       */
      private String publicUrlProtocol;
  
      /**
       * The prefix for the location that artifacts can be downloaded from
       *
       * @parameter expression="${downloadPrefix}"
       * default-value="http://s3browse.springsource.com/browse/maven.kuali.org/"
       */
      private String downloadPrefix;
  
      /**
       * The groupId for the organization
       *
       * @parameter expression="${organizationGroupId}" default-value="org.kuali"
       */
      private String organizationGroupId;
  
      /**
       * The name of the AWS bucket the site gets published to
       *
       * @parameter expression="${bucket}" default-value="site.origin.kuali.org"
       * @required
       */
      private String bucket;
  
      /**
       * The public DNS name for the site
       *
       * @parameter expression="${hostname}" default-value="site.kuali.org"
       * @required
       */
      private String hostname;
  
      /**
       * The Maven project this plugin runs in.
       *
       * @parameter expression="${project}"
       * @required
       * @readonly
       */
      private MavenProject project;
  
      @Override
      public void execute() throws MojoExecutionException, MojoFailureException {
          UrlBuilder builder = new UrlBuilder();
  
          // Generate our urls
          String publicUrl = builder.getPublicUrl(getProject(), this);
          String publishUrl = builder.getPublishUrl(getProject(), this);
          String downloadUrl = builder.getDownloadUrl(getProject(), this);
  
          // Get a reference to the relevant model objects
          MavenProject project = getProject();
         DistributionManagement dm = project.getDistributionManagement();
         Site site = dm.getSite();
 
         // Update the model with our generated urls as needed
         handlePublicUrl(publicUrl, project);
         handlePublishUrl(publishUrl, site);
         handleDownloadUrl(downloadUrl, dm);
 
     }
 
     /**
      * Return true if "s" is empty or contains "token"
      */
     protected boolean isReplace(final String s, final String token) {
         if (StringUtils.isEmpty(s)) {
             return true;
         }
         int pos = s.indexOf(token);
         if (pos != -1) {
             return true;
         }
         return false;
     }
 
     protected void warn(final String pomString, final String calculatedString, final String propertyDescription) {
         getLog().warn("****************************************");
         getLog().warn(propertyDescription + " mismatch");
         getLog().warn("Value from the POM: " + pomString);
         getLog().warn("  Calculated value: " + calculatedString);
         getLog().warn("****************************************");
     }
 
     /**
      * Return true if the 2 urls are exactly the same or if the only thing different about them is a trailing slash
      */
     protected boolean isUrlMatch(final String url1, final String url2) {
         if (url1.equals(url2)) {
             return true;
         }
         if ((url1 + "/").equals(url2)) {
             return true;
         }
         if (url1.equals(url2 + "/")) {
             return true;
         }
         return false;
     }
 
     protected void handleDownloadUrl(final String downloadUrl, final DistributionManagement dm) {
         if (isReplace(dm.getDownloadUrl(), "${kuali.site.download.url}")) {
             getLog().info("Setting download url to " + downloadUrl + " (was " + dm.getDownloadUrl() + ")");
             dm.setDownloadUrl(downloadUrl);
             return;
         }
         if (!isUrlMatch(downloadUrl, dm.getDownloadUrl())) {
             warn(dm.getDownloadUrl(), downloadUrl, "Download url");
         }
         getLog().info("Using download url from the POM " + dm.getDownloadUrl());
     }
 
     protected void handlePublishUrl(final String publishUrl, final Site site) {
         if (isReplace(site.getUrl(), "${kuali.site.publish.url}")) {
             getLog().info("Setting site publication url to " + publishUrl + " (was " + site.getUrl() + ")");
             site.setUrl(publishUrl);
             return;
         }
         if (!isUrlMatch(publishUrl, site.getUrl())) {
             warn(site.getUrl(), publishUrl, "Site publication url");
         }
         getLog().info("Using site publication url from the POM " + site.getUrl());
     }
 
     protected void handlePublicUrl(final String publicUrl, final MavenProject project) {
         if (isReplace(project.getUrl(), "${kuali.site.public.url}")) {
             getLog().info("Setting public url to " + publicUrl + " (was " + project.getUrl() + ")");
             project.setUrl(publicUrl);
             return;
         }
         if (!isUrlMatch(publicUrl, project.getUrl())) {
             warn(project.getUrl(), publicUrl, "Public url");
         }
         getLog().info("Using public url from the POM " + project.getUrl());
     }
 
     /**
      * @return the project
      */
     public MavenProject getProject() {
         return project;
     }
 
     /**
      * @param project
      * the project to set
      */
     public void setProject(final MavenProject project) {
         this.project = project;
     }
 
     /**
      * @return the bucket
      */
     @Override
     public String getBucket() {
         return bucket;
     }
 
     /**
      * @param bucket
      * the bucket to set
      */
     public void setBucket(final String bucket) {
         this.bucket = bucket;
     }
 
     /**
      * @return the hostname
      */
     @Override
     public String getHostname() {
         return hostname;
     }
 
     /**
      * @param hostname
      * the hostname to set
      */
     public void setHostname(final String hostname) {
         this.hostname = hostname;
     }
 
     /**
      * @return the downloadPrefix
      */
     @Override
     public String getDownloadPrefix() {
         return downloadPrefix;
     }
 
     /**
      * @param downloadPrefix
      * the downloadPrefix to set
      */
     public void setDownloadPrefix(final String downloadPrefix) {
         this.downloadPrefix = downloadPrefix;
     }
 
     /**
      * @return the parentGroupId
      */
     @Override
     public String getOrganizationGroupId() {
         return organizationGroupId;
     }
 
     /**
      * @param parentGroupId
      * the parentGroupId to set
      */
     public void setOrganizationGroupId(final String parentGroupId) {
         this.organizationGroupId = parentGroupId;
     }
 
     /**
      * @return the publishUrlProtocol
      */
     @Override
     public String getPublishUrlProtocol() {
         return publishUrlProtocol;
     }
 
     /**
      * @param publishUrlProtocol
      * the publishUrlProtocol to set
      */
     public void setPublishUrlProtocol(final String publishUrlProtocol) {
         this.publishUrlProtocol = publishUrlProtocol;
     }
 
     /**
      * @return the publicUrlProtocol
      */
     @Override
     public String getPublicUrlProtocol() {
         return publicUrlProtocol;
     }
 
     /**
      * @param publicUrlProtocol
      * the publicUrlProtocol to set
      */
     public void setPublicUrlProtocol(final String publicUrlProtocol) {
         this.publicUrlProtocol = publicUrlProtocol;
     }
 
     /**
      * @return the downloadSnapshotPrefix
      */
     @Override
     public String getDownloadSnapshotPrefix() {
         return downloadSnapshotPrefix;
     }
 
     /**
      * @param downloadSnapshotPrefix
      * the downloadSnapshotPrefix to set
      */
     public void setDownloadSnapshotPrefix(final String downloadSnapshotPrefix) {
         this.downloadSnapshotPrefix = downloadSnapshotPrefix;
     }
 
     /**
      * @return the downloadReleasePrefix
      */
     @Override
     public String getDownloadReleasePrefix() {
         return downloadReleasePrefix;
     }
 
     /**
      * @param downloadReleasePrefix
      * the downloadReleasePrefix to set
      */
     public void setDownloadReleasePrefix(final String downloadReleasePrefix) {
         this.downloadReleasePrefix = downloadReleasePrefix;
     }
 
 }