/**
    * 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.krad.web.form;
  
  import org.apache.commons.lang.StringUtils;
  import org.kuali.rice.core.api.CoreApiServiceLocator;
  import org.kuali.rice.core.api.util.RiceConstants;
  import org.kuali.rice.kew.api.WorkflowDocument;
  import org.kuali.rice.kim.api.identity.Person;
  import org.kuali.rice.kim.api.services.KimApiServiceLocator;
  import org.kuali.rice.krad.document.Document;
  import org.kuali.rice.krad.service.KRADServiceLocatorWeb;
  
  /**
   * Base form for all <code>DocumentView</code> screens
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  public class DocumentFormBase extends UifFormBase {
  	private static final long serialVersionUID = 2190268505427404480L;
  
  	private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(DocumentFormBase.class);
  
  	private String annotation = "";
  	private String command;
  
  	private String docId;
  	private String docTypeName;
  
  	protected Document document;
  
  	public DocumentFormBase() {
  	    super();
  
  	    instantiateDocument();
  	}
  
  	public String getAnnotation() {
  		return this.annotation;
  	}
  
  	public void setAnnotation(String annotation) {
  		this.annotation = annotation;
  	}
  
  	public Document getDocument() {
  		return this.document;
  	}
  
  	public void setDocument(Document document) {
  		this.document = document;
  	}
  
  	public String getDocTypeName() {
          if(this.docTypeName == null && !this.getDefaultDocumentTypeName().isEmpty())
          {
              return this.getDefaultDocumentTypeName();
          }
  		return this.docTypeName;
  	}
  
  	public void setDocTypeName(String docTypeName) {
  		this.docTypeName = docTypeName;
  	}
  
  	public String getCommand() {
  		return this.command;
  	}
  
  	public void setCommand(String command) {
  		this.command = command;
  	}
  
  	public String getDocId() {
  		return this.docId;
  	}
  
  	public void setDocId(String docId) {
  		this.docId = docId;
  	}
  
      protected String getDefaultDocumentTypeName() {
          return "";
      }
  
      protected void instantiateDocument() {
         if (document == null && StringUtils.isNotBlank(getDefaultDocumentTypeName())) {
             Class<? extends Document> documentClass = KRADServiceLocatorWeb.getDataDictionaryService()
                     .getDocumentClassByTypeName(getDefaultDocumentTypeName());
             try {
                 Document newDocument = documentClass.newInstance();
                 setDocument(newDocument);
             } catch (Exception e) {
                 LOG.error("Unable to instantiate document class " + documentClass.getName() + " document type "
                         + getDefaultDocumentTypeName());
                 throw new RuntimeException(e);
             }
         }
     }
 
 	/**
 	 * Retrieves the principal name (network id) for the document's initiator
 	 *
 	 * @return String initiator name
 	 */
 	public String getDocumentInitiatorNetworkId() {
 		String initiatorNetworkId = "";
 		if (getWorkflowDocument() != null) {
 			String initiatorPrincipalId = getWorkflowDocument().getInitiatorPrincipalId();
 			Person initiator = KimApiServiceLocator.getPersonService().getPerson(initiatorPrincipalId);
 			if (initiator != null) {
 				initiatorNetworkId = initiator.getPrincipalName();
 			}
 		}
 
 		return initiatorNetworkId;
 	}
 
 	/**
 	 * Retrieves the create date for the forms document and formats for
 	 * presentation
 	 *
 	 * @return String formatted document create date
 	 */
     public String getDocumentCreateDate() {
         String createDateStr = "";
         if (getWorkflowDocument() != null && getWorkflowDocument().getDateCreated() != null) {
             createDateStr = CoreApiServiceLocator.getDateTimeService().toString(
                     getWorkflowDocument().getDateCreated().toDate(), "hh:mm a "+ RiceConstants.SIMPLE_DATE_FORMAT_FOR_DATE);
         }
 
         return createDateStr;
     }
 
 	/**
 	 * Retrieves the <code>WorkflowDocument</code> instance from the forms
 	 * document instance
 	 *
 	 * @return WorkflowDocument for the forms document
 	 */
 	public WorkflowDocument getWorkflowDocument() {
 		return getDocument().getDocumentHeader().getWorkflowDocument();
 	}
 
 }