/**
    * 
    */
   package de.tivsource.page.common.css;
   
   import java.io.File;
   import java.util.Date;
   import java.util.SortedSet;
   import java.util.UUID;
  
  import javax.persistence.CascadeType;
  import javax.persistence.Column;
  import javax.persistence.Entity;
  import javax.persistence.FetchType;
  import javax.persistence.Id;
  import javax.persistence.JoinColumn;
  import javax.persistence.JoinTable;
  import javax.persistence.ManyToMany;
  import javax.persistence.Table;
  import javax.persistence.Temporal;
  import javax.persistence.Transient;
  import javax.persistence.Version;
  
  import org.apache.logging.log4j.LogManager;
  import org.apache.logging.log4j.Logger;
  import org.hibernate.annotations.SortNatural;
  import org.hibernate.envers.Audited;
  import org.hibernate.search.annotations.DocumentId;
  
  import de.tivsource.page.common.file.FileActions;
  
  /**
   * @author Marc Michele
   *
   */
  @Audited
  @Entity
  @Table(name = "CSSFile")
  public class CSSFile implements Comparable<CSSFile> {
  
      /**
       * Statischer Logger der Klasse CSSFile für die Ausgabe mit log4j.
       */
      private static final Logger logger = LogManager.getLogger(CSSFile.class);
  
      /**
       * UUID der Klasse CSSFile, diese ID ist einmalig über alle Objekte hinweg
       * und sollte der bevorzugte weg sein auf bestimmtes Objekte zuzugreifen.
       */
      @Id
      @DocumentId
      @Column(name = "uuid", unique = true, length = 42)
      private String uuid;
  
      private String name;
  
      private String description;
  
      private Integer priority;
  
      private String path;
  
      /**
       * Datei, die aus einem Formular hochgeladen wurde, die Datei ist temporär
       * vorhanden und wird nur zum erstellen benötigt.
       */
      @Transient
      private File uploadFile;
  
      /**
       * Gruppen zu dem die CSS Datei gehört.
       */
      @ManyToMany(targetEntity = CSSGroup.class, cascade = { CascadeType.PERSIST }, fetch = FetchType.EAGER)
      @JoinTable(
              name = "CSSFile_CSSGroup", 
              joinColumns = @JoinColumn(name = "cssFile_uuid"), 
              inverseJoinColumns = @JoinColumn(name = "cssGroup_uuid")
              )
      @SortNatural
      private SortedSet<CSSGroup> groups;
  
      @Temporal(javax.persistence.TemporalType.TIMESTAMP)
      private Date created;
  
      @Temporal(javax.persistence.TemporalType.TIMESTAMP)
      private Date modified;
  
      private String modifiedBy;
  
      private String modifiedAddress;
  
      /**
       * Versionsnummer für die Locking Strategie: optimistic-locking.
       */
      @Version
      private Integer version;
  
      /**
       * @return the uuid
      */
     public String getUuid() {
         return uuid;
     }
 
     /**
      * @param uuid
      *            the uuid to set
      */
     public void setUuid(String uuid) {
         this.uuid = uuid;
     }
 
     /**
      * @return the name
      */
     public String getName() {
         return name;
     }
 
     /**
      * @param name
      *            the name to set
      */
     public void setName(String name) {
         this.name = name;
     }
 
     /**
      * @return the description
      */
     public String getDescription() {
         return description;
     }
 
     /**
      * @param description
      *            the description to set
      */
     public void setDescription(String description) {
         this.description = description;
     }
 
     /**
      * @return the priority
      */
     public Integer getPriority() {
         return priority;
     }
 
     /**
      * @param priority
      *            the priority to set
      */
     public void setPriority(Integer priority) {
         this.priority = priority;
     }
 
     /**
      * @return the path
      */
     public String getPath() {
         return path;
     }
 
     /**
      * @param path
      *            the path to set
      */
     public void setPath(String path) {
         this.path = path;
     }
 
     /**
      * @return the uploadFile
      */
     public File getUploadFile() {
         return uploadFile;
     }
 
     /**
      * @param uploadFile
      *            the uploadFile to set
      */
     public void setUploadFile(File uploadFile) {
         this.uploadFile = uploadFile;
     }
 
     /**
      * @return the groups
      */
     public SortedSet<CSSGroup> getGroups() {
         return groups;
     }
 
     /**
      * @param groups
      *            the groups to set
      */
     public void setGroups(SortedSet<CSSGroup> groups) {
         this.groups = groups;
     }
 
     /**
      * @return the created
      */
     public Date getCreated() {
         return created;
     }
 
     /**
      * @param created
      *            the created to set
      */
     public void setCreated(Date created) {
         this.created = created;
     }
 
     /**
      * @return the modified
      */
     public Date getModified() {
         return modified;
     }
 
     /**
      * @param modified
      *            the modified to set
      */
     public void setModified(Date modified) {
         this.modified = modified;
     }
 
     /**
      * @return the modifiedBy
      */
     public String getModifiedBy() {
         return modifiedBy;
     }
 
     /**
      * @param modifiedBy
      *            the modifiedBy to set
      */
     public void setModifiedBy(String modifiedBy) {
         this.modifiedBy = modifiedBy;
     }
 
     /**
      * @return the modifiedAddress
      */
     public String getModifiedAddress() {
         return modifiedAddress;
     }
 
     /**
      * @param modifiedAddress
      *            the modifiedAddress to set
      */
     public void setModifiedAddress(String modifiedAddress) {
         this.modifiedAddress = modifiedAddress;
     }
 
     /**
      * @return the version
      */
     public Integer getVersion() {
         return version;
     }
 
     /**
      * @param version
      *            the version to set
      */
     public void setVersion(Integer version) {
         this.version = version;
     }
 
     public void generate() {
         String filePath = "/srv/tiv-page/cssfile/";
         // Generiere UUID für den Dateinamen
         String cssSaveName = UUID.randomUUID().toString();
         try {
             // Datei die erstellt werden soll
             File fileToCreate = new File(filePath, cssSaveName + ".css");
             logger.debug("Absoluter Pfad der neuen CSS-Datei : "
                     + fileToCreate.getAbsolutePath());
 
             // Wenn die Datei noch nicht existiert wird Sie erstellt.
             if (!fileToCreate.exists()) {
                 FileActions.savePictureFile(this.getUploadFile(), fileToCreate);
             }// Ende if
         } // Ende try
         catch (Exception e) {
             logger.error(e.getMessage());
         }// Ende Catch
         setPath(filePath + cssSaveName + ".css");
     }// Ende generate()
 
     @Override
     public int compareTo(CSSFile o) {
         if (o.priority < this.priority) {
             return 1;
         } else if (o.priority > this.priority) {
             return -1;
         } else {
             return o.uuid.compareTo(this.uuid);
         }
     }// Ende compareTo(CSSFile o)
 
 }// Ende class