/*
    * 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.controller;
  
  import java.util.ArrayList;
  import java.util.HashMap;
  import java.util.Iterator;
  import java.util.LinkedHashSet;
  import java.util.List;
  import java.util.Map;
  import java.util.Set;
  
  import javax.servlet.http.HttpServletRequest;
  
  import org.apache.struts.action.ActionErrors;
  import org.apache.struts.action.ActionForm;
  import org.apache.struts.action.ActionMapping;
  import org.apache.struts.config.FormBeanConfig;
  import org.json.JSONArray;
  import org.json.JSONObject;
  import org.seasar.framework.container.factory.SingletonS2ContainerFactory;
  import org.seasar.tuigwaa.database.DataTable;
  import org.seasar.tuigwaa.model.common.EntityUtils;
  import org.seasar.tuigwaa.model.core.TgwEntity;
  import org.seasar.tuigwaa.util.TgwContext;
  import org.seasar.tuigwaa.util.TgwUtils;
  import org.seasar.tuigwaa.util.ajax.AbstractRowSetForm;
  import org.seasar.tuigwaa.util.ajax.AjaxEvent;
  import org.seasar.tuigwaa.view.TableFormComponent;
  
  import com.isenshi.util.extlib.StrutsUtil;
  
  /***
   * Excel編集のフォームに対応
   * サイト管理者側とエンドユーザ側の両方に対応している
   *
   * @author nishioka
   */
  public class RecordTableForm extends AbstractRowSetForm {
  
  	private static final long serialVersionUID = -9103223516928827364L;
  
  	private List deletedRows = new ArrayList();
  
  	private Set updatedRows = new LinkedHashSet();
  
  	private TgwEntity entity;
  
  	private FormBeanConfig formBeanConfig;
  
  	private TableFormComponent formComponent;
  
  	private DataTable dataTable;
  
  	private String _pageName_;
  
  	private String tableName;
  
  	private String methodName;
  
  	private ActionMapping mapping;
  
  	public RecordTableForm() {
  	}
  
  	public RecordTableForm(TgwEntity entity, TableFormComponent formComponet,
  			DataTable dataTable) {
  		this.formComponent = formComponet;
  		this.entity = entity;
  		this.dataTable = dataTable;
  		String siteName = entity.getDomainName();
  		this.formBeanConfig = StrutsUtil.getModuleConfig(siteName)
  				.findFormBeanConfig(formComponet.getOriginalFormName());
  		initRecordTable();
  	}
  
  	// [Start] ----- Ajax Method -----
  
  	public void changeCellByAjax(long id, int col, String value) {
  		try {
  			for (Iterator i = getRowSet().iterator(); i.hasNext();) {
  				Object obj = i.next();
  				Long curId = EntityUtils.getId(obj, true);
  				if (curId != null && curId.longValue() == id) {
  					updatedRows.add(obj);
  				}
 			}
 			sendEvent(new SpreadSheetEvent(SpreadSheetEvent.CELL_CHANGED, id,
 					col, value));
 		} catch (Exception e) {
 			e.printStackTrace();
 		}
 	}
 
 	public String checkEventsByAjax() {
 		try {
 			List events = retrieveEvents();
 			List list = new ArrayList();
 			if (events != null) {
 				for (Iterator i = events.iterator(); i.hasNext();) {
 					SpreadSheetEvent event = (SpreadSheetEvent) i.next();
 					Map jsonMap = new HashMap();
 					jsonMap.put("type", new Integer(event.type));
 					jsonMap.put("id", new Long(event.id));
 					jsonMap.put("col", new Integer(event.col));
 					jsonMap.put("value", event.value);
 					list.add(new JSONObject(jsonMap));
 				}
 			}
 			return new JSONArray(list).toString();
 		} catch (Exception e) {
 			e.printStackTrace();
 		}
 		return null;
 	}
 
 	// [End] ----- Ajax Method -----
 
 	// ----- Setter/Getter Method -----
 
 	public void set_pageName_(String name_) {
 		_pageName_ = name_;
 	}
 
 	public String get_pageName_() {
 		return _pageName_;
 	}
 
 	public void setTableName(String tableName) {
 		this.tableName = tableName;
 	}
 
 	public String getTableName() {
 		return tableName;
 	}
 
 	public String getMethodName() {
 		return methodName;
 	}
 
 	public void setMethodName(String methodName) {
 		this.methodName = methodName;
 	}
 
 	public TgwEntity getEntity() {
 		return entity;
 	}
 
 	public List getDeletedRows() {
 		return deletedRows;
 	}
 
 	public boolean isSharable() {
 		return true;
 	}
 
 	public String getSharedKey() {
 		return EntityUtils.getKeys(entity);
 	}
 
 	public String getUpdateMethodName() {
 		return formComponent.getCustomFormName();
 	}
 
 	public DataTable getDataTable() {
 		return dataTable;
 	}
 
 	public String getFormName() {
 		return formBeanConfig.getName();
 	}
 
 	public String getEntityName() {
 		return entity.getName();
 	}
 
 	public Iterator getChangedRowIterator() {
 		// if (getUpdateMethodName() == null) {
 		if (getMethodName() == null) {
 			return updatedRows.iterator();
 		} else {
 			return getRowSet().iterator();
 		}
 	}
 
 	// [Start] ----- Override Method ------
 
 	protected void addRow(Object row) {
 		super.addRow(row);
 		Long id = EntityUtils.getId(row, true);
 		if (id == null || id.longValue() <= 0) {
 			updatedRows.add(row);
 		}
 	}
 
 	public void reset(ActionMapping mapping, HttpServletRequest request) {
 		this.mapping = mapping;
 		super.reset(mapping, request);
 	}
 
 	public ActionErrors validate(ActionMapping mapping,
 			HttpServletRequest request) {
 
 		for (Iterator i = getRowSet().iterator(); i.hasNext();) {
 			String siteName = TgwContext.getSiteName();
 			String formName = getFormName();
 			TgwUtils.convert(siteName, formName, i.next());
 		}
 		// bind pagename
 		String pageName = get_pageName_();
 		TgwContext.bindPageName(pageName);
 
 		return super.validate(mapping, request);
 	}
 
 	protected Object removeRow(int index) {
 		Object row = super.removeRow(index);
 		Long id = EntityUtils.getId(row, true);
 		if (id != null && id.longValue() > 0) {
 			deletedRows.add(id);
 		}
 		return row;
 	}
 
 	protected void removeRow(int index, Object row) {
 	}
 
 	protected Object createNewRow() {
 		ActionForm form = null;
 		try {
 			if (formBeanConfig == null) {
 				String siteName = TgwContext.getSiteName();
 
 				String customFromName = ((ControllerService) SingletonS2ContainerFactory
 						.getContainer().getComponent(ControllerService.class))
 						.getCustomFormName(siteName, mapping.getPath());
 				this.formBeanConfig = StrutsUtil.getModuleConfig(siteName)
 						.findFormBeanConfig(customFromName);
 			}
 			form = formBeanConfig.createActionForm(TgwUtils
 					.getTuigwaaActionServlet());
 		} catch (IllegalAccessException e) {
 			e.printStackTrace();
 		} catch (InstantiationException e) {
 			e.printStackTrace();
 		}
 		return form;
 	}
 
 	protected Object createRow(int index, String value) {
 		return null;
 	}
 
 	protected String[] getHtmlData(int index, Object row) {
 		Object valueObject = null;
 		Long id = EntityUtils.getId(row, true);
 		if (id != null && id.longValue() > 0 && dataTable.getRowSize() > index) {
 			valueObject = dataTable.getRowObject(index);
 		}
 		String removeButton = createRemoveButtonHtml(index,
 				getMessage("button.remove"));
 		String[] data = formComponent.getFieldElems(index, valueObject,
 				removeButton);
 		if(data == null){
 			return null;
 		}
 		
 		String[] retData = new String[data.length + 1];
 		retData[0] = "" + id;
 		for(int i=0; i<data.length; i++){
 			retData[i+1] = data[i];
 		}
 		return retData;
 	}
 
 	// [Start] ----- Private Method ------
 
 	private void initRecordTable() {
 		for (int i = 0; i < dataTable.getRowSize(); i++) {
 			Object obj = createNewRow();
 			Long id = EntityUtils.getId(dataTable.getRowObject(i));
 			EntityUtils.setId(obj, id, true);
 			addRow(obj);
 		}
 		if (dataTable.getRowSize() == 0) {
 			Object obj = createNewRow();
 			addRow(obj);
 		}
 	}
 
 	// [Start] ----- Inner Class ------
 
 	static class SpreadSheetEvent implements AjaxEvent {
 
 		static final int CELL_CHANGED = 0;
 
 		int type;
 
 		long id;
 
 		int col;
 
 		String value;
 
 		SpreadSheetEvent(int type, long id, int col, String value) {
 			this.type = type;
 			this.id = id;
 			this.col = col;
 			this.value = value;
 		}
 	}
 }