/**
    * Copyright 2005-2016 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.datadictionary.state;
  
  import org.apache.commons.lang.StringUtils;
  import org.kuali.rice.core.api.CoreApiServiceLocator;
  import org.kuali.rice.core.api.config.property.ConfigurationService;
  import org.kuali.rice.krad.datadictionary.parse.BeanTag;
  import org.kuali.rice.krad.datadictionary.parse.BeanTagAttribute;
  import org.kuali.rice.krad.datadictionary.parse.BeanTags;
  import org.kuali.rice.krad.datadictionary.validator.ValidationTrace;
  import org.kuali.rice.krad.uif.util.ObjectPropertyUtils;
  
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Map;
  
  /**
   * Base implementation of StateMapping.
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   * @see StateMapping
   * @since 2.2
   */
  @BeanTags({@BeanTag(name = "stateMapping", parent = "StateMapping"),
          @BeanTag(name = "workflowStateMapping", parent = "workflowStateMapping")})
  public class StateMappingBase implements StateMapping {
  
      private Map<String, String> stateNameMessageKeyMap;
      private List<String> states;
      private String statePropertyName;
      private Map<String, String> customClientSideValidationStates;
  
      /**
       * @see StateMapping#getStateNameMessage(String)
       */
      @Override
      public String getStateNameMessage(String state) {
          String message = null;
          if (StringUtils.isNotBlank(state) && this.getStates().contains(state)) {
              if (this.getStateNameMessageKeyMap() != null) {
                  ConfigurationService configService = CoreApiServiceLocator.getKualiConfigurationService();
                  String key = this.getStateNameMessageKeyMap().get(state);
                  message = configService.getPropertyValueAsString(key);
              }
  
              if (message == null) {
                  message = state;
              }
          }
          return message;
      }
  
      /**
       * @see StateMapping#getCurrentState(Object object)
       */
      @Override
      public String getCurrentState(Object object) {
          return ObjectPropertyUtils.getPropertyValue(object, this.getStatePropertyName());
      }
  
      /**
       * @see StateMapping#getNextState(Object)
       */
      @Override
      public String getNextState(Object object) {
          int currentStateIndex = this.getStates().indexOf(this.getCurrentState(object));
          if (currentStateIndex != -1) {
              int index = currentStateIndex + 1;
              if (index == this.getStates().size()) {
                  return this.getCurrentState(object);
              } else {
                  return this.getStates().get(index);
              }
          } else {
              return this.getCurrentState(object);
          }
      }
  
      /**
       * @see org.kuali.rice.krad.datadictionary.state.StateMapping#getStateNameMessageKeyMap()
       */
      @Override
      @BeanTagAttribute(name = "stateNameMessageKeyMap", type = BeanTagAttribute.AttributeType.MAPVALUE)
      public Map<String, String> getStateNameMessageKeyMap() {
          return stateNameMessageKeyMap;
     }
 
     /**
      * @see StateMapping#setStateNameMessageKeyMap(java.util.Map)
      */
     @Override
     public void setStateNameMessageKeyMap(Map<String, String> stateNameMessageKeyMap) {
         this.stateNameMessageKeyMap = stateNameMessageKeyMap;
     }
 
     /**
      * @see org.kuali.rice.krad.datadictionary.state.StateMapping#getStates()
      */
     @Override
     @BeanTagAttribute(name = "states", type = BeanTagAttribute.AttributeType.LISTVALUE)
     public List<String> getStates() {
         if (states == null) {
             states = new ArrayList<String>();
         }
         return states;
     }
 
     /**
      * @see StateMapping#setStates(java.util.List)
      */
     @Override
     public void setStates(List<String> states) {
         this.states = states;
     }
 
     /**
      * @see org.kuali.rice.krad.datadictionary.state.StateMapping#getStatePropertyName()
      */
     @Override
     @BeanTagAttribute(name = "statePropertyName")
     public String getStatePropertyName() {
         return statePropertyName;
     }
 
     /**
      * @see StateMapping#setStatePropertyName(String)
      */
     @Override
     public void setStatePropertyName(String statePropertyName) {
         this.statePropertyName = statePropertyName;
     }
 
     /**
      * @see org.kuali.rice.krad.datadictionary.state.StateMapping#getCustomClientSideValidationStates()
      */
     @BeanTagAttribute(name = "customClientSideValidationStates", type = BeanTagAttribute.AttributeType.MAPVALUE)
     public Map<String, String> getCustomClientSideValidationStates() {
         return customClientSideValidationStates;
     }
 
     /**
      * @see StateMapping#setCustomClientSideValidationStates(java.util.Map)
      */
     public void setCustomClientSideValidationStates(Map<String, String> customClientSideValidationStates) {
         this.customClientSideValidationStates = customClientSideValidationStates;
     }
 
     /**
      * @see StateMapping#completeValidation(org.kuali.rice.krad.datadictionary.validator.ValidationTrace)
      */
     public void completeValidation(ValidationTrace tracer) {
         tracer.addBean("StateMappingBase", getStatePropertyName());
 
         // Checking that propertyName is set
         if (getStatePropertyName() == null) {
             String currentValues[] = {"statePropertyName = null"};
             tracer.createWarning("The State Property Name must be set", currentValues);
         }
 
         // Checking that states are set
         if (getStates() == null) {
             String currentValues[] = {"states = null"};
             tracer.createWarning("States should be set", currentValues);
         }
     }
 }