/*
    * Copyright 2007 The Kuali Foundation
    *
    * Licensed under the Educational Community License, Version 1.0 (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/ecl1.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.uif.view;
  
  import org.apache.commons.lang.StringUtils;
  import org.kuali.rice.krad.uif.UifConstants.ViewType;
  import org.kuali.rice.krad.uif.UifPropertyPaths;
  import org.kuali.rice.krad.uif.container.CollectionGroup;
  import org.kuali.rice.krad.uif.container.Group;
  import org.kuali.rice.krad.uif.component.Component;
  import org.kuali.rice.krad.uif.component.RequestParameter;
  import org.kuali.rice.krad.uif.field.Field;
  import org.kuali.rice.krad.web.form.LookupForm;
  
  import java.util.Arrays;
  import java.util.List;
  
  /**
   * View type for Maintenance documents
   *
   * <p>
   * Supports doing a search against a data object class or performing a more advanced query. The view
   * type is primarily made up of two groups, the search (or criteria) group and the results group. Many
   * options are supported on the view to enable/disable certain features, like what actions are available
   * on the search results.
   * </p>
   *
   * <p>
   * Works in conjunction with <code>LookupableImpl</code> which customizes the view and carries out the
   * business functionality
   * </p>
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  public class LookupView extends FormView {
      private static final long serialVersionUID = 716926008488403616L;
  
      private Class<?> dataObjectClassName;
  
      private Group criteriaGroup;
      private CollectionGroup resultsGroup;
  
      private Field resultsActionsField;
      private Field resultsReturnField;
  
      private List<Component> criteriaFields;
      private List<Component> resultFields;
      private List<String> defaultSortAttributeNames;
  
      protected boolean defaultSortAscending = true;
  
      @RequestParameter
      private boolean hideReturnLinks = false;
      @RequestParameter
      private boolean suppressActions = false;
      @RequestParameter
      private boolean showMaintenanceLinks = false;
      @RequestParameter
      private boolean multipleValuesSelect = false;
  
      @RequestParameter
      private String returnTarget;
  
      @RequestParameter
      private boolean returnByScript;
  
      private boolean lookupCriteriaEnabled = true;
      private boolean supplementalActionsEnabled = false;
      private boolean disableSearchButtons = false;
  
      private Integer resultSetLimit = null;
  
      public LookupView() {
          super();
          setViewTypeName(ViewType.LOOKUP);
          setValidateDirty(false);
      }
  
      /**
       * The following initialization is performed:
       *
       * <ul>
       * <li>Set the abstractTypeClasses map for the lookup object path</li>
       * </ul>
       *
       * @see org.kuali.rice.krad.uif.container.ContainerBase#performInitialization(org.kuali.rice.krad.uif.view.View, java.lang.Object)
      */
     @Override
     public void performInitialization(View view, Object model) {
         initializeGroups();
         if (getItems().isEmpty()) {
             setItems(Arrays.asList(getCriteriaGroup(), getResultsGroup()));
         }
         super.performInitialization(view, model);
 
         getAbstractTypeClasses().put(UifPropertyPaths.CRITERIA_FIELDS, getDataObjectClassName());
         if (StringUtils.isNotBlank(getDefaultBindingObjectPath())) {
             getAbstractTypeClasses().put(getDefaultBindingObjectPath(), getDataObjectClassName());
         }
     }
 
     protected void initializeGroups() {
         if ((getCriteriaGroup() != null) && (getCriteriaGroup().getItems().isEmpty())) {
             getCriteriaGroup().setItems(getCriteriaFields());
         }
         if (getResultsGroup() != null) {
             if ((getResultsGroup().getItems().isEmpty()) && (getResultFields() != null)) {
                 getResultsGroup().setItems(getResultFields());
             }
             if (getResultsGroup().getCollectionObjectClass() == null) {
                 getResultsGroup().setCollectionObjectClass(getDataObjectClassName());
             }
         }
     }
 
     /**
      * @see org.kuali.rice.krad.uif.container.ContainerBase#performApplyModel(org.kuali.rice.krad.uif.view.View,
      *      java.lang.Object)
      */
     @Override
     public void performApplyModel(View view, Object model, Component parent) {
         LookupForm lookupForm = (LookupForm) model;
 
         // TODO: need to check lookupForm.isAtLeastOneRowHasActions() somewhere
         if (!isSuppressActions() && isShowMaintenanceLinks()) {
             ((List<Field>) getResultsGroup().getItems()).add(0, getResultsActionsField());
         }
 
         if (StringUtils.isNotBlank(lookupForm.getReturnFormKey()) &&
                 StringUtils.isNotBlank(lookupForm.getReturnLocation()) && !isHideReturnLinks()) {
             ((List<Field>) getResultsGroup().getItems()).add(0, getResultsReturnField());
         }
 
         super.performApplyModel(view, model, parent);
     }
 
     public void applyConditionalLogicForFieldDisplay() {
         // TODO: work into view lifecycle
 //	    LookupViewHelperService lookupViewHelperService = (LookupViewHelperService) getViewHelperService();
 //		Set<String> readOnlyFields = lookupViewHelperService.getConditionallyReadOnlyPropertyNames();
 //		Set<String> requiredFields = lookupViewHelperService.getConditionallyRequiredPropertyNames();
 //		Set<String> hiddenFields = lookupViewHelperService.getConditionallyHiddenPropertyNames();
 //		if ( (readOnlyFields != null && !readOnlyFields.isEmpty()) ||
 //			 (requiredFields != null && !requiredFields.isEmpty()) ||
 //			 (hiddenFields != null && !hiddenFields.isEmpty())
 //			) {
 //			for (Field field : getResultsGroup().getItems()) {
 //				if (AttributeField.class.isAssignableFrom(field.getClass())) {
 //					AttributeField attributeField = (AttributeField) field;
 //					if (readOnlyFields != null && readOnlyFields.contains(attributeField.getBindingInfo().getBindingName())) {
 //						attributeField.setReadOnly(true);
 //					}
 //					if (requiredFields != null && requiredFields.contains(attributeField.getBindingInfo().getBindingName())) {
 //						attributeField.setRequired(Boolean.TRUE);
 //					}
 //					if (hiddenFields != null && hiddenFields.contains(attributeField.getBindingInfo().getBindingName())) {
 //						attributeField.setControl(LookupInquiryUtils.generateCustomLookupControlFromExisting(HiddenControl.class, null));
 //					}
 //				}
 //	        }
 //		}
     }
 
     /**
      * Class name for the object the lookup applies to
      *
      * <p>
      * The object class name is used to pick up a dictionary entry which will
      * feed the attribute field definitions and other configuration. In addition
      * it is to configure the <code>Lookupable</code> which will carry out the
      * lookup action
      * </p>
      *
      * @return Class<?> lookup data object class
      */
     public Class<?> getDataObjectClassName() {
         return this.dataObjectClassName;
     }
 
     /**
      * Setter for the object class name
      *
      * @param dataObjectClassName
      */
     public void setDataObjectClassName(Class<?> dataObjectClassName) {
         this.dataObjectClassName = dataObjectClassName;
     }
 
     /**
      * @return the hideReturnLinks
      */
     public boolean isHideReturnLinks() {
         return this.hideReturnLinks;
     }
 
     /**
      * @param hideReturnLinks the hideReturnLinks to set
      */
     public void setHideReturnLinks(boolean hideReturnLinks) {
         this.hideReturnLinks = hideReturnLinks;
     }
 
     /**
      * @return the suppressActions
      */
     public boolean isSuppressActions() {
         return this.suppressActions;
     }
 
     /**
      * @param suppressActions the suppressActions to set
      */
     public void setSuppressActions(boolean suppressActions) {
         this.suppressActions = suppressActions;
     }
 
     /**
      * @return the showMaintenanceLinks
      */
     public boolean isShowMaintenanceLinks() {
         return this.showMaintenanceLinks;
     }
 
     /**
      * @param showMaintenanceLinks the showMaintenanceLinks to set
      */
     public void setShowMaintenanceLinks(boolean showMaintenanceLinks) {
         this.showMaintenanceLinks = showMaintenanceLinks;
     }
 
     /**
      * Indicates whether multiple values select should be enabled for the lookup
      *
      * <p>
      * When set to true, the select field is enabled for the lookup results group that allows the user
      * to select one or more rows for returning
      * </p>
      *
      * @return boolean true if multiple values should be enabled, false otherwise
      */
     public boolean isMultipleValuesSelect() {
         return multipleValuesSelect;
     }
 
     /**
      * Setter for the multiple values select indicator
      *
      * @param multipleValuesSelect
      */
     public void setMultipleValuesSelect(boolean multipleValuesSelect) {
         this.multipleValuesSelect = multipleValuesSelect;
     }
 
     /**
      * @return the resultsActionsField
      */
     public Field getResultsActionsField() {
         return this.resultsActionsField;
     }
 
     /**
      * @param resultsActionsField the resultsActionsField to set
      */
     public void setResultsActionsField(Field resultsActionsField) {
         this.resultsActionsField = resultsActionsField;
     }
 
     /**
      * @return the resultsReturnField
      */
     public Field getResultsReturnField() {
         return this.resultsReturnField;
     }
 
     /**
      * @param resultsReturnField the resultsReturnField to set
      */
     public void setResultsReturnField(Field resultsReturnField) {
         this.resultsReturnField = resultsReturnField;
     }
 
     public Group getCriteriaGroup() {
         return this.criteriaGroup;
     }
 
     public void setCriteriaGroup(Group criteriaGroup) {
         this.criteriaGroup = criteriaGroup;
     }
 
     public CollectionGroup getResultsGroup() {
         return this.resultsGroup;
     }
 
     public void setResultsGroup(CollectionGroup resultsGroup) {
         this.resultsGroup = resultsGroup;
     }
 
     public List<Component> getCriteriaFields() {
         return this.criteriaFields;
     }
 
     public void setCriteriaFields(List<Component> criteriaFields) {
         this.criteriaFields = criteriaFields;
     }
 
     public List<Component> getResultFields() {
         return this.resultFields;
     }
 
     public void setResultFields(List<Component> resultFields) {
         this.resultFields = resultFields;
     }
 
     public List<String> getDefaultSortAttributeNames() {
         return this.defaultSortAttributeNames;
     }
 
     public void setDefaultSortAttributeNames(List<String> defaultSortAttributeNames) {
         this.defaultSortAttributeNames = defaultSortAttributeNames;
     }
 
     public boolean isDefaultSortAscending() {
         return this.defaultSortAscending;
     }
 
     public void setDefaultSortAscending(boolean defaultSortAscending) {
         this.defaultSortAscending = defaultSortAscending;
     }
 
     /**
      * Retrieves the maximum number of records that will be listed
      * as a result of the lookup search
      *
      * @return Integer result set limit
      */
     public Integer getResultSetLimit() {
         return resultSetLimit;
     }
 
     /**
      * Setter for the result list limit
      *
      * @param resultSetLimit Integer specifying limit
      */
     public void setResultSetLimit(Integer resultSetLimit) {
         this.resultSetLimit = resultSetLimit;
     }
 
     /**
      * Indicates whether a result set limit has been specified for the
      * view
      *
      * @return true if this instance has a result set limit
      */
     public boolean hasResultSetLimit() {
         return (resultSetLimit != null);
     }
 
     /**
      * @param returnTarget the returnTarget to set
      */
     public void setReturnTarget(String returnTarget) {
         this.returnTarget = returnTarget;
     }
 
     /**
      * @return the returnTarget
      */
     public String getReturnTarget() {
         return returnTarget;
     }
 
     /**
      * @return the returnByScript
      */
     public boolean isReturnByScript() {
         return returnByScript;
     }
 
     /**
      * Setter for the flag to indicate that lookups will return the value
      * by script and not a post
      *
      * @param returnByScript the returnByScript flag
      */
     public void setReturnByScript(boolean returnByScript) {
         this.returnByScript = returnByScript;
     }
 }