/*
    * Copyright 2007-2009 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.kim.web.struts.form;
  
  import org.apache.commons.lang.StringUtils;
  import org.apache.log4j.Logger;
  import org.kuali.rice.kim.util.KimConstants;
  import org.kuali.rice.kns.bo.Parameter;
  import org.kuali.rice.kns.service.KNSServiceLocator;
  import org.kuali.rice.kns.util.KNSConstants;
  import org.kuali.rice.kns.util.PagingBannerUtils;
  import org.kuali.rice.kns.web.struts.form.KualiTableRenderFormMetadata;
  import org.kuali.rice.kns.web.struts.form.KualiTransactionalDocumentFormBase;
  
  import javax.servlet.http.HttpServletRequest;
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * This is a description of what this class does - kellerj don't forget to fill this in. 
   * 
   * @author Kuali Rice Team (rice.collab@kuali.org)
   *
   */
  @SuppressWarnings("serial")
  public abstract class IdentityManagementDocumentFormBase extends KualiTransactionalDocumentFormBase {
  	protected static final Logger LOG = Logger.getLogger(IdentityManagementDocumentFormBase.class);
      protected static final String MAX_MEMBERS_PER_PAGE_PARM = "MAX_MEMBERS_PER_PAGE";
  	protected transient KualiTableRenderFormMetadata memberTableMetadata;
      protected int recordsPerPage = -1;
      protected boolean inquiry = false;
      
  	protected static final String CHANGE_NAMESPACE_METHOD_TO_CALL = "methodToCall.changeNamespace";
  	protected static final String CHANGE_MEMBER_TYPE_CODE_METHOD_TO_CALL = "methodToCall.changeMemberTypeCode";
  	protected static final String CHANGE_DEL_ROLE_MEMBER_METHOD_TO_CALL = "methodToCall.changeDelegationRoleMember";
  
      /**
       * @see org.kuali.rice.kns.web.struts.form.KualiDocumentFormBase#populate(javax.servlet.http.HttpServletRequest)
       */
      @SuppressWarnings("unchecked")
  	@Override
      public void populate(HttpServletRequest request) {
          super.populate(request);
  
          if (memberTableMetadata == null)
          	memberTableMetadata = new KualiTableRenderFormMetadata();
  
          if (KNSConstants.TableRenderConstants.SWITCH_TO_PAGE_METHOD.equals(getMethodToCall())) {
              final String paramPrefix = KNSConstants.DISPATCH_REQUEST_PARAMETER + "." + KNSConstants.TableRenderConstants.SWITCH_TO_PAGE_METHOD + ".";
              memberTableMetadata.setSwitchToPageNumber(PagingBannerUtils.getNumbericalValueAfterPrefix(paramPrefix, request.getParameterNames()));
              if (memberTableMetadata.getSwitchToPageNumber() == -1) {
                  throw new RuntimeException("Couldn't find page number");
              }
          } else if (KNSConstants.TableRenderConstants.SORT_METHOD.equals(getMethodToCall())) {
              final String paramPrefix = KNSConstants.DISPATCH_REQUEST_PARAMETER + "." + KNSConstants.TableRenderConstants.SORT_METHOD + ".";
              memberTableMetadata.setColumnToSortIndex(PagingBannerUtils.getNumbericalValueAfterPrefix(paramPrefix, request.getParameterNames()));
              if (memberTableMetadata.getColumnToSortIndex() == -1) {
                  memberTableMetadata.setColumnToSortName(PagingBannerUtils.getStringValueAfterPrefix(paramPrefix, request.getParameterNames()));
              }
          }
      }
  
  	public KualiTableRenderFormMetadata getMemberTableMetadata() {
  		return this.memberTableMetadata;
  	}
  
  	public void setMemberTableMetadata(
  			KualiTableRenderFormMetadata memberTableMetadata) {
  		this.memberTableMetadata = memberTableMetadata;
  	}
  
  	public int getRecordsPerPage() {
  		if ( recordsPerPage == -1 ) {
  			Parameter param = KNSServiceLocator.getParameterService().retrieveParameter(KimConstants.NAMESPACE_CODE, KNSConstants.DetailTypes.DOCUMENT_DETAIL_TYPE, MAX_MEMBERS_PER_PAGE_PARM);
  			if ( param != null ) {
  				try {
  					recordsPerPage = Integer.parseInt( param.getParameterValue() );
  				} catch ( NumberFormatException ex ) {
  					LOG.error( "Unable to parse parameter " + KimConstants.NAMESPACE_CODE+"/"+KNSConstants.DetailTypes.DOCUMENT_DETAIL_TYPE+"/"+MAX_MEMBERS_PER_PAGE_PARM + "(+"+param.getParameterValue()+") as an int - defaulting to 1." );
  					recordsPerPage = 1;
  				}
  			} else {
  				LOG.error( "Unable to find " + KimConstants.NAMESPACE_CODE+"/"+KNSConstants.DetailTypes.DOCUMENT_DETAIL_TYPE+"/"+MAX_MEMBERS_PER_PAGE_PARM + " - defaulting to 1." );
  				recordsPerPage = 1;
  			}
  		}
 		return recordsPerPage;
 	}
 
 	// support for the inquiryControls tag since using same form
 	public boolean isCanExport() {
 		return false;
 	}
 	
 	@SuppressWarnings("unchecked")
 	public List getMemberRows() {
 		return new ArrayList();
 	}
 
 	/**
 	 * @return the inquiry
 	 */
 	public boolean isInquiry() {
 		return this.inquiry;
 	}
 
 	/**
 	 * @param inquiry the inquiry to set
 	 */
 	public void setInquiry(boolean inquiry) {
 		this.inquiry = inquiry;
 	}
 }