/*
 *  VisitStatDAO.java
 *  
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Library General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *  
 *  Author: Winter Lau (javayou@gmail.com)
 *  http://dlog4j.sourceforge.net
 */
package com.liusoft.dlog4j.dao;
import java.util.Calendar;
import java.util.Date;
import org.hibernate.Query;
import org.hibernate.Session;
import com.liusoft.dlog4j.beans.SiteBean;
import com.liusoft.dlog4j.beans.SiteStatBean;
/**
 * ����ͳ��
 * @author Winter Lau
 */
public class VisitStatDAO extends DAO {
  /**
   * ���շ����˴�
   * @param site
   * @return
   */
  public static long getUVToday(SiteBean site){    
    if(site==null) return -1;
    Calendar cal = Calendar.getInstance();
    int statDate = cal.get(Calendar.YEAR)*10000 + cal.get(Calendar.MONTH)*100 + cal.get(Calendar.DATE);
    return toLong(executeNamedStat("VISIT_STAT", site.getId(), statDate), 1);
  }
  /**
   * ���ܷ����˴�
   * @param site
   * @return
   */
  public static long getUVThisWeek(SiteBean site){  
    if(site==null) return -1;  
    Calendar cal = Calendar.getInstance();
    int week = cal.get(Calendar.DAY_OF_WEEK);
    if(week > 1)
      cal.add(Calendar.DATE, 1-week);
    int statDate = cal.get(Calendar.YEAR)*10000 + cal.get(Calendar.MONTH)*100 + cal.get(Calendar.DATE);
    return toLong(executeNamedStat("VISIT_STAT", site.getId(), statDate), 1);
  }
  /**
   * ���·����˴�
   * @param site
   * @return
   */
  public static long getUVThisMonth(SiteBean site){
    if(site==null) return -1;  
    Calendar cal = Calendar.getInstance();
    cal.set(Calendar.DATE, 1);
    int statDate = cal.get(Calendar.YEAR)*10000 + cal.get(Calendar.MONTH)*100 + cal.get(Calendar.DATE);
    return toLong(executeNamedStat("VISIT_STAT", site.getId(), statDate), 1);
  }
  /**
   * ��������˴�
   * @param site
   * @return
   */
  public static long getUVThisYear(SiteBean site){
    if(site==null) return -1;  
    Calendar cal = Calendar.getInstance();
    cal.set(Calendar.MONTH, 1);
    cal.set(Calendar.DATE, 1);
    int statDate = cal.get(Calendar.YEAR)*10000 + cal.get(Calendar.MONTH)*100 + cal.get(Calendar.DATE);
    return toLong(executeNamedStat("VISIT_STAT", site.getId(), statDate), 1);
  }
  /**
   * ���з����˴�
   * @param site
   * @return
   */
  public static long getUVTotal(SiteBean site){
    if(site==null) return -1;  
    return toLong(executeNamedStat("VISIT_STAT_2", site.getId()), 1);
  }
  
  private static long toLong(Number v, int defaultValue){
    return (v!=null)?v.longValue():defaultValue;
  }
  
  /**
   * дͳ�����ݵ����ݿ�
   * @param ssb
   * @throws Exception 
   */
  public static void writeStatData(int siteid, int uvCount, int source) throws Exception{
    Calendar cal = Calendar.getInstance();
    int statDate = cal.get(Calendar.YEAR)*10000 + cal.get(Calendar.MONTH)*100 + cal.get(Calendar.DATE);
    Session ssn = getSession();
    try{
      beginTransaction();
      Query update_q = ssn.getNamedQuery((siteid>0)?"UPDATE_SITE_STAT_1":"UPDATE_SITE_STAT_2");
      update_q.setInteger(0, uvCount);
      update_q.setInteger(1, statDate);
      update_q.setInteger(2, source);
      if(siteid>0)
        update_q.setInteger(3, siteid);
      if(update_q.executeUpdate()<1){
        SiteStatBean ssb = new SiteStatBean();
        ssb.setSiteId(siteid);
        ssb.setUvCount(uvCount);
        ssb.setUpdateTime(new Date());
        ssb.setSource(source);
        ssb.setStatDate(statDate);
        ssn.save(ssb);
      }
      commit();
    }catch(Exception e){
      rollback();
      throw e;
    }
  }
  
}