/* ==================================================================   
 * Created [2009-4-27 下午11:32:55] by Jon.King 
 * ==================================================================  
 * TSS 
 * ================================================================== 
 * mailTo:jinpujun@hotmail.com
 * Copyright (c) Jon.King, 2009-2012 
 * ================================================================== 
 */

package com.jinhe.tss.cms.dao.impl;

import java.util.Date;
import java.util.List;

import com.jinhe.tss.cms.CMSConstants;
import com.jinhe.tss.cms.dao.IArticleRelationDao;
import com.jinhe.tss.cms.helper.ArticleQueryCondition;
import com.jinhe.tss.component.support.persistence.pagequery.PageInfo;
import com.jinhe.tss.component.support.persistence.pagequery.PaginationQueryByHQL;
import com.jinhe.tss.core.persistence.BaseDao;
import com.jinhe.tss.core.persistence.IEntity;
import com.jinhe.tss.core.util.EasyUtils;

public class ArticleRelationDao extends BaseDao<IEntity> implements IArticleRelationDao{

	public ArticleRelationDao() {
        super(IEntity.class);
    }

    @SuppressWarnings("unchecked")
    public List<Long> getArticleIdList(Date startTime, Date endTime, String author) {
		String hql ="select distinct a.id from Article a, ChannelArticle ca, Temp t " 
			+ " where a.id = ca.id.articleId  and ca.id.channelId = t.id and a.issueDate between ? and ?" ;
        
		if( !EasyUtils.isNullOrEmpty(author) ) {
			hql += " and a.creatorName like ?";
            return (List<Long>) getEntities(hql, startTime, endTime, "'%" + author + "%'");
		}
        return (List<Long>) getEntities(hql, startTime, endTime);
	}

	public List<?> getSummaryGroupByAuthor(Date startTime, Date endTime) {
		String hql = "select a.author, sum(a.hitCount) as hitcount, count(a) as articleNum "
                + " from Article a, ChannelArticle ca, Temp temp "
                + " where a.id = ca.id.articleId and ca.id.channelId = temp.id " 
                + " and ca.articleOrigin = ? and a.issueDate between ? and ?" 
                + " group by a.author " 
                + " order by hitcount desc ";
		return getEntities(hql, CMSConstants.ARTICLE_COMMON, startTime, endTime);
	}
	
    //没有文章的栏目不展示
	public List<?> getSummaryGroupByChannel(Date startTime, Date endTime) {
		String hql = "select c.id as channelId, sum(t.hitCount) as hitcount " 
		        + "from Article t, ChannelArticle ca, Channel c "
			    + " where ca.id.articleId = t.id and  ca.id.channelId = c.id and t.issueDate between ? and ? " 
                + " group by c.id " 
                + " order by hitcount DESC";
        return getEntities(hql, startTime, endTime);
	}
	
	public Integer getChannelArtilceCount(Long channelId, Date startTime, Date endTime){
		String hql = "select count(*) from Article a, ChannelArticle ca "
			    + " where a.id = ca.id.articleId and ca.id.channelId = ? and a.issueDate between ? and ? ";
        
        List<?> list = getEntities(hql, channelId, startTime, endTime);
		return list.isEmpty() ? 0 : (Integer)list.get(0);	
	}
	
	public List<?> getAverageScoreByChannel(Long channelId, Date startTime, Date endTime){
		String hql = "select sum(a.scores/a.scoreCount)/count(*), sum(a.scoreCount)"
			    + " from Article a, ChannelArticle ca " 
			    + " where a.id = ca.id.articleId and ca.id.channelId = ? and a.issueDate between ? and ? and a.scoreCount <> 0 ";
		return getEntities(hql, channelId, startTime, endTime);
	}
	
	public List<?> getAverageScoreByAuthor(String author, Date startTime, Date endTime){
		String hql = "select sum(a.scores/a.scoreCount)/count(*), sum(a.scoreCount) " 
            + " from Article a, ChannelArticle ca, Temp t " 
            + " where a.id = ca.id.articleId and ca.id.channelId = t.id " 
            + " and a.issueDate between ? and ? and a.author = ? and a.scoreCount <> 0";
        return getEntities(hql, startTime, endTime, author);
	}
	
	/*******************************************评论部分*********************************************/
	
	public PageInfo getCommentsList(Long articleId, Integer pageNum) {
		String hql = "from ArticleComment c where c.articleId = :articleId";
        ArticleQueryCondition condition = new ArticleQueryCondition();
        condition.setArticleId(articleId);
        condition.getPage().setPageNum(pageNum);
        PaginationQueryByHQL pageQuery = new PaginationQueryByHQL(em, hql, condition); 
		return pageQuery.getResultList();
	}

	public PageInfo getCommentsList4Search(String keyword, Integer pageNum) {
		String hql = "from ArticleComment c where c.commentContent like :keyword";
        ArticleQueryCondition condition = new ArticleQueryCondition();
        condition.setKeyword("%" + keyword + "%");
        condition.getPage().setPageNum(pageNum);
        PaginationQueryByHQL pageQuery = new PaginationQueryByHQL(em, hql, condition);
        return pageQuery.getResultList();
	}
}