/*
    * Copyright 2004-2006 the Seasar Foundation and the Others.
    *
    * Licensed under the Apache 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.apache.org/licenses/LICENSE-2.0
    *
   * 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.seasar.tuigwaa.view;
  
  import java.util.ArrayList;
  import java.util.HashMap;
  import java.util.Iterator;
  import java.util.List;
  import java.util.Map;
  
  import org.seasar.tuigwaa.controller.config.ValidatorUtils;
  import org.seasar.tuigwaa.model.common.EntityUtils;
  import org.seasar.tuigwaa.model.core.TgwAttribute;
  import org.seasar.tuigwaa.model.core.TgwEntity;
  import org.seasar.tuigwaa.model.core.impl.FkAttribute;
  import org.seasar.tuigwaa.plugin.TgwPluginUtils;
  import org.seasar.tuigwaa.system.Constants;
  import org.seasar.tuigwaa.util.TgwContext;
  import org.seasar.tuigwaa.util.TgwNameUtils;
  
  import com.isenshi.util.HtmlBuffer;
  
  public class EntityFormComponent extends AbstractGenericFormComponent {
  
  	private Object valueObject;
  
  	private Map bindingFkObjMap;
  
  	private String prefix;
  
  	private String extraHidden = "";
  
  	private boolean smallFormFlag = false;
  
  	private boolean formclear;
  	
  	public EntityFormComponent(String javascript, TgwEntity entity,
  			Object object) {
  		super(entity, javascript);
  		this.valueObject = object;
  	}
  
  	// [Start] ------ Setter Getter Metdhod -----
  
  	public String getExtraHidden() {
  		return extraHidden;
  	}
  
  	public void setBindingFkObjMap(Map bindingFkObjMap) {
  		this.bindingFkObjMap = bindingFkObjMap;
  	}
  
  	public Map getBindingFkObjMap() {
  		return bindingFkObjMap;
  	}
  
  	public void setPrefix(String prefix) {
  		this.prefix = prefix;
  	}
  
  	public void setValueObject(Object valueObject) {
  		this.valueObject = valueObject;
  	}
  
  	public final Object getValueObject() {
  		return valueObject;
  	}
  
  	public void setSmallFormFlag(boolean smallFormFlag) {
  		this.smallFormFlag = smallFormFlag;
  	}
  
  	public String getDisplayName() {
  		String displayName = super.getDisplayName();
  		if (displayName == null) {
  			return getEntity().getDisplayName();
  		}
  		return displayName;
  	}
  
  	// [End] ------ Setter Getter Metdhod -----
  
  	// [Start] ------ Overide Metdhod -----
  
  	protected String getOnSubmitFunction() {
  		return ValidatorUtils.getOnSumbmitForm(getFormName());
 	}
 
 	protected boolean isMultiPart() {
 		return EntityUtils.isExistFileField(getEntity());
 	}
 
 	private static final String SBACK_PAGE = "_SRESULTBACK_";
 
 	protected Map getHiddenProperties() {
 		Map hiddenProps = new HashMap();
 		hiddenProps.put(Constants.PARAM_PAGENAME, getForwardPageName());
 		// hiddenProps.put(Constants.PARAM_THISPAGENAME, getThisPageName());
 
 		hiddenProps.put(Constants.PARAM_ENTITY_NAME, getEntity().getName());
 
 		if (valueObject != null) {
 			hiddenProps.put(EntityUtils.ESCAPED_ID, "" + getId());
 		} else if (isJspTemplate()) {
 			String jspId = "$!{" + Constants.RATTR_VALUEOBJECT + ".id}";
 			hiddenProps.put(EntityUtils.ESCAPED_ID, jspId);
 		}
 
 		if (SBACK_PAGE.equals(getForwardPageName())) {
 			String searchRedirectUrl = getSearchRedirectUrl();
 			if (searchRedirectUrl != null && !"".equals(searchRedirectUrl)) {
 				hiddenProps.put(Constants.PARAM_SEARCH_REDIREDT_URL,
 						searchRedirectUrl);
 			}
 		}
 		return hiddenProps;
 	}
 
 	public String getSearchRedirectUrl() {
 		return TgwContext.getRequest().getParameter(
 				Constants.PARAM_SEARCH_REDIREDT_URL);
 	}
 
 	// [End] ------ Override Metdhod -----
 
 	public List getRowElements(String prefix, Object valueObj) {
 		setPrefix(prefix);
 		setValueObject(valueObj);
 		List list = new ArrayList();
 		Iterator itr = getEntity().getFieldIterator();
 		while (itr.hasNext()) {
 			TgwAttribute attr = (TgwAttribute) itr.next();
 			FormElement elem = getRowElement(attr);
 			if (elem != null) {
 				list.add(elem);
 			}
 		}
 		return list;
 	}
 
 	public List getFormElements() {
 		List list = new ArrayList();
 		Iterator itr = getEntity().getFieldIterator();
 		while (itr.hasNext()) {
 			TgwAttribute attr = (TgwAttribute) itr.next();
 			FormElement elem = createFormElement(attr);
 			if (elem != null) {
 				list.add(elem);
 			}
 			String hidden = createExtraHidden(attr);
 			addExtraHidden(hidden);
 		}
 		return list;
 	}
 
 	protected void addExtraHidden(String hidden) {
 		if (hidden != null) {
 			extraHidden += hidden;
 		}
 	}
 
 	public Object clearValueObject(){
 		Object obj =  valueObject;
 		valueObject = null;
 		return obj;
 	}
 	
 	public FormElement getFormElement(String attrName) {
 		return createFormElement(getEntity().getField(attrName));
 	}
 
 	protected FormElement createFormElement(TgwAttribute attr) {
 
 		if (EntityUtils.isBuiltinAttribute(attr)
 				|| EntityUtils.oneToManyFlag(attr)) {
 			return null;
 		}
 
 		String label = attr.getDisplayName();
 		String name = getElementName(attr);
 		AttributeFormGenerateVisitor visitor = null;
 		if (smallFormFlag) {
 			visitor = AttributeFormGenerateVisitor.createTableForm(valueObject);
 		} else if (isJspTemplate()) {
 			visitor = AttributeFormGenerateVisitor.MACRO_INSTANCE;
 		} else {
 			visitor = AttributeFormGenerateVisitor.create(valueObject,
 					bindingFkObjMap);
 		}
 		String element = (String) attr.accept(visitor, name);
 		if (element == null) {
 			return null;
 		}
 
 		boolean required = attr.isRequired();
 		String description = attr.getDescription();
 
 		return new FormElement(attr.getName(), name, label, element, required,
 				description);
 	}
 
 	// [Start] ------ Getter Metdhod -----
 
 	public String getName() {
 		return getEntity().getDisplayName();
 	}
 
 	public Map getAttrNameMap() {
 		Iterator itr = getEntity().getFieldIterator();
 		Map map = new HashMap();
 		while (itr.hasNext()) {
 			TgwAttribute attr = (TgwAttribute) itr.next();
 			String newName = getElementName(attr);
 			map.put(attr.getName(), newName);
 		}
 		return map;
 	}
 
 	public void setFormclear(boolean formclear) {
 		this.formclear = formclear;
 	}
 	
 	public boolean isFormclear() {
 		return formclear;
 	}
 	
 	
 	
 	// [End] ------ Getter Metdhod -----
 
 	// [Start] ------ Private Metdhod -----
 
 	private String getElementName(TgwAttribute field) {
 		if (EntityUtils.needConverter(field)) {
 			return toDynaConverterName(field);
 		} else {
 			return toDynaPropertyName(field);
 		}
 	}
 
 	private String toDynaPropertyName(TgwAttribute field) {
 		String name = TgwNameUtils.toDynaPropertyName(field.getName());
 		return addPrefix(name);
 	}
 
 	private String toDynaConverterName(TgwAttribute field) {
 		String name = TgwNameUtils.toDynaConverterName(field.getName());
 		return addPrefix(name);
 	}
 
 	private String addPrefix(String name) {
 		if (prefix == null) {
 			return name;
 		}
 		return prefix + name;
 	}
 
 	protected String getId() {
 		return String.valueOf(EntityUtils.getId(valueObject));
 	}
 
 	protected FormElement getRowElement(TgwAttribute attr) {
 		return createFormElement(attr);
 	}
 
 	public String createExtraHidden(TgwAttribute attr) {
 		if (attr instanceof FkAttribute) {
 			FkAttribute fkField = (FkAttribute) attr;
 			if (bindingFkObjMap != null) {
 				Object bindingFkObj = bindingFkObjMap.get(attr.getName());
 				if (bindingFkObj != null) {
 					// already fkfield set
 					Long id = EntityUtils.getId(bindingFkObj);
 					String bindingName = TgwPluginUtils
 							.createEscapeEntityBindingName(fkField
 									.getRefEntityName(), fkField.getName());
 					HtmlBuffer buf = new HtmlBuffer();
 					buf.appendHidden(getElementName(attr), String.valueOf(id));
 					buf.appendHidden(bindingName, String.valueOf(id));
 					return buf.toString();
 				}
 			}
 		}
 		return null;
 	}
 		
 	// [End] ------ Private Metdhod -----
 }