/**
    * Copyright 2005-2014 The Kuali Foundation
    *
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
    *
   * 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.kuali.rice.krms.impl.repository;
  
  import org.apache.commons.lang.StringUtils;
  import org.kuali.rice.core.api.exception.RiceIllegalStateException;
  import org.kuali.rice.core.api.mo.common.Versioned;
  import org.kuali.rice.krad.data.jpa.PortableSequenceGenerator;
  import org.kuali.rice.krms.api.repository.language.NaturalLanguageTemplate;
  import org.kuali.rice.krms.api.repository.language.NaturalLanguageTemplateContract;
  import org.kuali.rice.krms.api.repository.type.KrmsAttributeDefinition;
  import org.kuali.rice.krms.api.repository.type.KrmsTypeDefinition;
  import org.kuali.rice.krms.api.repository.type.KrmsTypeRepositoryService;
  
  import javax.persistence.CascadeType;
  import javax.persistence.Column;
  import javax.persistence.Entity;
  import javax.persistence.GeneratedValue;
  import javax.persistence.Id;
  import javax.persistence.JoinColumn;
  import javax.persistence.OneToMany;
  import javax.persistence.Table;
  import javax.persistence.Transient;
  import javax.persistence.Version;
  import java.io.Serializable;
  import java.util.Collection;
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.HashSet;
  import java.util.LinkedList;
  import java.util.List;
  import java.util.Map;
  import java.util.Set;
  
  /**
   * The mutable implementation of the @{link NaturalLanguageTemplateContract} interface, the counterpart to the immutable implementation {@link NaturalLanguageTemplate}.
   * @author Kuali Rice Team (rice.collab@kuali.org)
   * 
   */
  @Entity
  @Table(name = "KRMS_NL_TMPL_T")
  public class NaturalLanguageTemplateBo implements NaturalLanguageTemplateContract, Versioned, Serializable {
  
      private static final long serialVersionUID = 1l;
  
      @Transient
      private Map<String, String> attributes;
  
      @Column(name = "LANG_CD")
      private String languageCode;
  
      @Column(name = "NL_USAGE_ID")
      private String naturalLanguageUsageId;
  
      @Column(name = "TYP_ID")
      private String typeId;
  
      @Column(name = "TMPL")
      private String template;
  
      @PortableSequenceGenerator(name = "KRMS_NL_TMPL_S")
      @GeneratedValue(generator = "KRMS_NL_TMPL_S")
      @Id
      @Column(name = "NL_TMPL_ID")
      private String id;
  
      @Transient
      private boolean active;
  
      @Column(name = "VER_NBR")
      @Version
      private Long versionNumber;
  
      @OneToMany(targetEntity = NaturalLanguageTemplateAttributeBo.class, orphanRemoval = true, cascade = { CascadeType.REFRESH, CascadeType.REMOVE, CascadeType.PERSIST })
      @JoinColumn(name = "NL_TMPL_ID", referencedColumnName = "NL_TMPL_ID", insertable = false, updatable = false)
      private Set<NaturalLanguageTemplateAttributeBo> attributeBos;
  
      private static KrmsAttributeDefinitionService attributeDefinitionService;
  
      private static KrmsTypeRepositoryService typeRepositoryService;
  
      /**
       * Default Constructor
       * 
       */
      public NaturalLanguageTemplateBo() {
     }
 
     @Override
     public String getLanguageCode() {
         return this.languageCode;
     }
 
     @Override
     public String getNaturalLanguageUsageId() {
         return this.naturalLanguageUsageId;
     }
 
     @Override
     public String getTypeId() {
         return this.typeId;
     }
 
     @Override
     public String getTemplate() {
         return this.template;
     }
 
     @Override
     public String getId() {
         return this.id;
     }
 
     @Override
     public boolean isActive() {
         return this.active;
     }
 
     @Override
     public Long getVersionNumber() {
         return this.versionNumber;
     }
 
     /**
      * Sets the value of languageCode on this builder to the given value.
      * 
      * @param languageCode the languageCode value to set.
      * 
      */
     public void setLanguageCode(String languageCode) {
         this.languageCode = languageCode;
     }
 
     /**
      * Sets the value of naturalLanguageUsageId on this builder to the given value.
      * 
      * @param naturalLanguageUsageId the naturalLanguageUsageId value to set.
      * 
      */
     public void setNaturalLanguageUsageId(String naturalLanguageUsageId) {
         this.naturalLanguageUsageId = naturalLanguageUsageId;
     }
 
     /**
      * Sets the value of typeId on this builder to the given value.
      * 
      * @param typeId the typeId value to set.
      * 
      */
     public void setTypeId(String typeId) {
         this.typeId = typeId;
     }
 
     /**
      * Sets the value of template on this builder to the given value.
      * 
      * @param template the template value to set.
      * 
      */
     public void setTemplate(String template) {
         this.template = template;
     }
 
     /**
      * Sets the value of id on this builder to the given value.
      * 
      * @param id the id value to set.
      * 
      */
     public void setId(String id) {
         this.id = id;
     }
 
     /**
      * Sets the value of active on this builder to the given value.
      * 
      * @param active the active value to set.
      * 
      */
     public void setActive(boolean active) {
         this.active = active;
     }
 
     /**
      * Sets the value of versionNumber on this builder to the given value.
      * 
      * @param versionNumber the versionNumber value to set.
      * 
      */
     public void setVersionNumber(Long versionNumber) {
         this.versionNumber = versionNumber;
     }
 
     /**
      * Sets the value of AttributeBos on this builder to the given value.
      * 
      * @param attributeBos the AttributeBos value to set.
      * 
      */
     public void setAttributeBos(List<NaturalLanguageTemplateAttributeBo> attributeBos) {
         this.attributeBos = new HashSet<NaturalLanguageTemplateAttributeBo>(attributeBos);
     }
 
     /**
      * Sets the value of AttributeBos on this builder to the given value.
      * 
      * @param attributeBos the AttributeBos value to set.
      * 
      */
     public void setAttributeBos(Set<NaturalLanguageTemplateAttributeBo> attributeBos) {
         this.attributeBos = new HashSet<NaturalLanguageTemplateAttributeBo>(attributeBos);
     }
 
     /**
      * Converts a mutable {@link NaturalLanguageTemplateBo} to its immutable counterpart, {@link NaturalLanguageTemplate}.
      * @param naturalLanguageTemplateBo the mutable business object.
      * @return a {@link NaturalLanguageTemplate} the immutable object.
      * 
      */
     public static NaturalLanguageTemplate to(NaturalLanguageTemplateBo naturalLanguageTemplateBo) {
         if (naturalLanguageTemplateBo == null) {
             return null;
         }
 
         return NaturalLanguageTemplate.Builder.create(naturalLanguageTemplateBo).build();
     }
 
     /**
      * Converts a immutable {@link NaturalLanguageTemplate} to its mutable {@link NaturalLanguageTemplateBo} counterpart.
      * @param naturalLanguageTemplate the immutable object.
      * @return a {@link NaturalLanguageTemplateBo} the mutable NaturalLanguageTemplateBo.
      * 
      */
     public static org.kuali.rice.krms.impl.repository.NaturalLanguageTemplateBo from(NaturalLanguageTemplate naturalLanguageTemplate) {
         if (naturalLanguageTemplate == null) {
             return null;
         }
 
         NaturalLanguageTemplateBo naturalLanguageTemplateBo = new NaturalLanguageTemplateBo();
         naturalLanguageTemplateBo.setLanguageCode(naturalLanguageTemplate.getLanguageCode());
         naturalLanguageTemplateBo.setNaturalLanguageUsageId(naturalLanguageTemplate.getNaturalLanguageUsageId());
         naturalLanguageTemplateBo.setTypeId(naturalLanguageTemplate.getTypeId());
         naturalLanguageTemplateBo.setTemplate(naturalLanguageTemplate.getTemplate());
         naturalLanguageTemplateBo.setId(naturalLanguageTemplate.getId());
         naturalLanguageTemplateBo.setActive(naturalLanguageTemplate.isActive());
         naturalLanguageTemplateBo.setVersionNumber(naturalLanguageTemplate.getVersionNumber());
         if (StringUtils.isNotBlank(naturalLanguageTemplate.getId())) {
            naturalLanguageTemplateBo.setAttributeBos(buildAttributeBoSet(naturalLanguageTemplate));
         }
         return naturalLanguageTemplateBo;
     }
 
     @Override
     public Map<String, String> getAttributes() {
         if (attributeBos == null) {
             return Collections.emptyMap();
         }
 
         HashMap<String, String> attributes = new HashMap<String, String>(attributeBos.size());
 
         for (NaturalLanguageTemplateAttributeBo attr : attributeBos) {
             attributes.put(attr.getAttributeDefinition().getName(), attr.getValue());
         }
 
         return attributes;
     }
 
     /**
      * TODO
      * 
      */
     public void setAttributes(Map<String, String> attributes) {
         this.attributeBos = new HashSet<NaturalLanguageTemplateAttributeBo>();
 
         if (!org.apache.commons.lang.StringUtils.isBlank(this.typeId)) {
             List<KrmsAttributeDefinition> attributeDefinitions = KrmsRepositoryServiceLocator.getKrmsAttributeDefinitionService().findAttributeDefinitionsByType(this.getTypeId());
             Map<String, KrmsAttributeDefinition> attributeDefinitionsByName = new HashMap<String, KrmsAttributeDefinition>(attributeDefinitions.size());
 
             if (attributeDefinitions != null) for (KrmsAttributeDefinition attributeDefinition : attributeDefinitions) {
                 attributeDefinitionsByName.put(attributeDefinition.getName(), attributeDefinition);
             }
 
             for (Map.Entry<String, String> attr : attributes.entrySet()) {
                 KrmsAttributeDefinition attributeDefinition = attributeDefinitionsByName.get(attr.getKey());
                 NaturalLanguageTemplateAttributeBo attributeBo = new NaturalLanguageTemplateAttributeBo();
                 attributeBo.setNaturalLanguageTemplateId(this.getId());
                 attributeBo.setAttributeDefinitionId((attributeDefinition == null) ? null : attributeDefinition.getId());
                 attributeBo.setValue(attr.getValue());
                 attributeBo.setAttributeDefinition(KrmsAttributeDefinitionBo.from(attributeDefinition));
                 attributeBos.add(attributeBo);
             }
         }
     }
 
     private static Collection<NaturalLanguageTemplateAttributeBo> buildAttributes(NaturalLanguageTemplate im, Collection<NaturalLanguageTemplateAttributeBo> attributes) {
         KrmsTypeDefinition krmsTypeDefinition = getTypeRepositoryService().getTypeById(im.getTypeId());
 
         // for each entry, build a NaturalLanguageTemplateAttributeBo and add it 
         if (im.getAttributes() != null) {
             for (Map.Entry<String, String> entry : im.getAttributes().entrySet()) {
                 KrmsAttributeDefinition attrDef = getAttributeDefinitionService().getAttributeDefinitionByNameAndNamespace(entry.getKey(), krmsTypeDefinition.getNamespace());
 
                 if (attrDef != null) {
                     NaturalLanguageTemplateAttributeBo attributeBo = new NaturalLanguageTemplateAttributeBo();
                     attributeBo.setNaturalLanguageTemplateId(im.getId());
                     attributeBo.setAttributeDefinitionId(attrDef.getId());
                     attributeBo.setValue(entry.getValue());
                     attributeBo.setAttributeDefinition(KrmsAttributeDefinitionBo.from(attrDef));
                     attributes.add(attributeBo);
                 } else {
                     throw new RiceIllegalStateException("there is no attribute definition with the name '" + entry.getKey() + "' that is valid for the naturalLanguageTemplate type with id = '" + im.getTypeId() + "'");
                 }
             }
         }
 
         return attributes;
     }
 
     private static Set<NaturalLanguageTemplateAttributeBo> buildAttributeBoSet(NaturalLanguageTemplate im) {
         Set<NaturalLanguageTemplateAttributeBo> attributes = new HashSet<NaturalLanguageTemplateAttributeBo>();
 
         return (Set) buildAttributes(im, attributes);
     }
 
     private static List<NaturalLanguageTemplateAttributeBo> buildAttributeBoList(NaturalLanguageTemplate im) {
         List<NaturalLanguageTemplateAttributeBo> attributes = new LinkedList<NaturalLanguageTemplateAttributeBo>();
 
         return (List) buildAttributes(im, attributes);
     }
 
     public static void setAttributeDefinitionService(KrmsAttributeDefinitionService attributeDefinitionService) {
         NaturalLanguageTemplateBo.attributeDefinitionService = attributeDefinitionService;
     }
 
     public static KrmsTypeRepositoryService getTypeRepositoryService() {
         if (typeRepositoryService == null) {
             typeRepositoryService = KrmsRepositoryServiceLocator.getKrmsTypeRepositoryService();
         }
 
         return typeRepositoryService;
     }
 
     public static void setTypeRepositoryService(KrmsTypeRepositoryService typeRepositoryService) {
         NaturalLanguageTemplateBo.typeRepositoryService = typeRepositoryService;
     }
 
     public static KrmsAttributeDefinitionService getAttributeDefinitionService() {
         if (attributeDefinitionService == null) {
             attributeDefinitionService = KrmsRepositoryServiceLocator.getKrmsAttributeDefinitionService();
         }
 
         return attributeDefinitionService;
     }
 }