<?php
defined('WEKIT_VERSION') || exit('Forbidden');

/**
 * 帖子基础服务
 *
 * @author Jianmin Chen <sky_hold@163.com>
 * @copyright 2003-2103 phpwind.com
 * @license http://www.phpwind.com
 * @version $Id: PwThread.php 23306 2013-01-08 06:57:50Z jieyin $
 * @package forum
 */

class PwThread {
	
	const FETCH_MAIN = 1;		//帖子基本信息
	const FETCH_CONTENT = 2;	//帖子内容相关信息
	const FETCH_ALL = 3;
	
	const SPECIAL_SORT_TOP1 = 101;
	const SPECIAL_SORT_TOP2 = 102;
	const SPECIAL_SORT_TOP3 = 103;

	const STATUS_LOCKED = 1;
	const STATUS_CLOSED = 2;
	const STATUS_DOWNED = 3;
	const STATUS_OPERATORLOG = 4;//是否有帖子操作日志
	
	/**
	 * 获取单个帖子信息
	 *
	 * @param int $tid 帖子id
	 * @param int $fetchmode 帖子资料 <必然为FETCH_*的一种或者组合>
	 * @return array
	 */
	public function getThread($tid, $fetchmode = self::FETCH_MAIN) {
		if (empty($tid)) return array();
		return $this->_getThreadDao($fetchmode)->getThread($tid);
	}
	
	/**
	 * 获取多个帖子信息
	 *
	 * @param array $tids tid序列
	 * @param int $fetchmode 帖子资料 <必然为FETCH_*的一种或者组合>
	 * @return array
	 */
	public function fetchThread($tids, $fetchmode = self::FETCH_MAIN) {
		if (empty($tids) || !is_array($tids)) return array();
		return $this->_getThreadDao($fetchmode)->fetchThread($tids);
	}
	
	/**
	 * 获取某个版块的帖子列表 (按最后回复排序)
	 *
	 * @param int $fid 版块id
	 * @param int $limit 个数
	 * @param int $offset 起始偏移量
	 * @param int $fetchmode 帖子资料 <必然为FETCH_*的一种或者组合>
	 * @return array
	 */
	public function getThreadByFid($fid, $limit, $offset = 0, $fetchmode = self::FETCH_MAIN) {
		return $this->_getThreadDao($fetchmode)->getThreadByFid($fid, $limit, $offset);
	}

	public function fetchThreadByTid($tids, $limit, $start, $fetchmode = self::FETCH_MAIN) {
		return $this->_getThreadDao($fetchmode)->fetchThreadByTid($tids, $limit, $start);
	}
	
	/**
	 * 统计版块的帖子数/回复数
	 *
	 * @param int $fid 版块fid
	 * @return array
	 */
	public function countPosts($fid) {
		return $this->_getThreadDao()->countPosts($fid);
	}
	
	/**
	 * 获取主题分类的帖子列表
	 */
	public function getThreadByFidAndType($fid, $type, $limit, $start, $fetchmode = self::FETCH_MAIN) {
		return $this->_getThreadDao($fetchmode)->getThreadByFidAndType($fid, $type, $limit, $start);
	}
	
	public function countThreadByFidAndType($fid, $type) {
		return $this->_getThreadDao(self::FETCH_MAIN)->countThreadByFidAndType($fid, $type);
	}
	
	/**
	 * 统计用户发帖数
	 *
	 * @param int $uid
	 * @return int
	 */
	public function countThreadByUid($uid) {
		if (empty($uid)) return 0;
		return $this->_getThreadDao(self::FETCH_MAIN)->countThreadByUid($uid);
	}

	/**
	 * 获取用户的帖子
	 *
	 * @param int $uid 用户id
	 * @param int $limit 个数
	 * @param int $offset 起始偏移量
	 * @param int $fetchmode 帖子资料 <必然为FETCH_*的一种或者组合>
	 * @return array
	 */
	public function getThreadByUid($uid, $limit = 0, $offset = 0, $fetchmode = self::FETCH_MAIN) {
		if (empty($uid)) return array();
		return $this->_getThreadDao($fetchmode)->getThreadByUid($uid, $limit, $offset);
	}
	
	/**
	 * 获取某个版块用户的帖子
	 *
	 * @param int $fid 版块id
	 * @param mixed $uids 用户id (int|array)
	 * @param int $limit 个数
	 * @param int $offset 起始偏移量
	 * @param int $fetchmode 帖子资料 <必然为FETCH_*的一种或者组合>
	 * @return array
	 */
	public function getThreadsByFidAndUids($fid, $uids, $limit = 0, $offset = 0, $fetchmode = self::FETCH_MAIN) {
		if (empty($fid) || empty($uids)) return array();
		is_array($uids) || $uids = array($uids);
		return $this->_getThreadDao($fetchmode)->getThreadsByFidAndUids($fid, $uids, $limit, $offset);
	}
	
	/**
	 * 增加帖子
	 * 注：本接口只提供数据层的相关操作，完整的帖子发布接口请参照 PwPost::execute()
	 *
	 * @param object $topicDm 帖子数据模型
	 * @return mixed
	 */
	public function addThread(PwTopicDm $topicDm) {
		if (($result = $topicDm->beforeAdd()) !== true) {
			return $result;
		}
		return $this->_getThreadDao(self::FETCH_ALL)->addThread($topicDm->getSetData());
	}
	
	/**
	 * 更新帖子
	 *
	 * @param object $topicDm 帖子数据模型
	 * @param int $fetchmode 帖子资料 <必然为FETCH_*的一种或者组合>
	 * @return mixed
	 */
	public function updateThread(PwTopicDm $topicDm, $fetchmode = self::FETCH_ALL) {
		if (($result = $topicDm->beforeUpdate()) !== true) {
			return $result;
		}
		return $this->_getThreadDao($fetchmode)->updateThread($topicDm->tid, $topicDm->getData(), $topicDm->getIncreaseData(), $topicDm->getBitData());
	}
	
	/**
	 * 批量更新帖子
	 *
	 * @param array $tids 帖子id
	 * @param object $topicDm 帖子数据模型
	 * @param int $fetchmode 帖子资料 <必然为FETCH_*的一种或者组合>
	 * @return mixed
	 */
	public function batchUpdateThread($tids, PwTopicDm $topicDm, $fetchmode = self::FETCH_ALL) {
		if (empty($tids)) return false;
		if (($result = $topicDm->beforeUpdate()) !== true) {
			return $result;
		}
		return $this->_getThreadDao($fetchmode)->batchUpdateThread($tids, $topicDm->getData(), $topicDm->getIncreaseData(), $topicDm->getBitData());
	}
	
	/**
	 * 还原帖子disabled属性
	 *
	 * @param array $tids
	 * @return bool
	 */
	public function revertTopic($tids) {
		if (empty($tids) || !is_array($tids)) return false;
		return $this->_getThreadDao(self::FETCH_MAIN)->revertTopic($tids);
	}

	/**
	 * 删除帖子
	 * 注：本接口只提供数据层的相关操作，完整的帖子删除接口请参照 PwDeleteTopic::execute()
	 * 
	 * @param int $tid
	 */
	public function deleteThread($tid) {
		if (!$tid) return false;
		return $this->_getThreadDao(self::FETCH_ALL)->deleteThread($tid);
	}
	
	/**
	 * 批量删除帖子
	 * 注：本接口只提供数据层的相关操作，完整的帖子删除接口请参照 PwDeleteTopic::execute()
	 * 
	 * @param array $tids
	 */
	public function batchDeleteThread($tids) {
		if (empty($tids) || !is_array($tids)) return false;
		return $this->_getThreadDao(self::FETCH_ALL)->batchDeleteThread($tids);
	}
	
	/**
	 * 统计帖子数(搜索)
	 *
	 * @param object $so
	 * @return int
	 */
	public function countSearchThread(PwThreadSo $so) {
		return $this->_getThreadMergeDao()->countSearchThread($so->getData());
	}

	/**
	 * 搜索帖子
	 *
	 * @param object $so
	 * @return array
	 */
	public function searchThread(PwThreadSo $so, $limit = 20, $offset = 0, $fetchmode = self::FETCH_MAIN) {
		return $this->_getThreadMergeDao()->searchThread($fetchmode, $so->getData(), $so->getOrderby(), $limit, $offset);
	}


	/****************** 以上是主题接口 ******************\

	\****************** 以下是回复接口 ******************/



	/**
	 * 获取一个回复
	 *
	 * @param int $pid 回复id
	 * @return array
	 */
	public function getPost($pid) {
		if (!$pid) return array();
		return $this->_getPostDao()->getPost($pid);
	}
	
	/**
	 * 获取多个回复
	 *
	 * @param array $pids 回复ids
	 * @return array
	 */
	public function fetchPost($pids) {
		if (empty($pids) || !is_array($pids)) return false;
		return $this->_getPostDao()->fetchPost($pids);
	}

	/**
	 * 获取一个帖子的回复列表
	 *
	 * @param int $tid 帖子id
	 * @param int $limit
	 * @param int $offset
	 * @return array
	 */
	public function getPostByTid($tid, $limit = 20, $offset = 0, $asc = true) {
		if (empty($tid)) return array();
		return $this->_getPostDao()->getPostByTid($tid, $limit, $offset, $asc);
	}
	
	/**
	 * 统计用户的回复数
	 *
	 * @param int $uid
	 * @return int
	 */
	public function countPostByUid($uid) {
		if (empty($uid)) return 0;
		return $this->_getPostDao()->countPostByUid($uid);
	}

	/**
	 * 获取用户的回复
	 *
	 * @param int $uid 用户id
	 * @param int $limit 个数
	 * @param int $offset 起始偏移量
	 * @return array
	 */
	public function getPostByUid($uid, $limit = 20, $offset = 0) {
		if (empty($uid)) return array();
		return $this->_getPostDao()->getPostByUid($uid, $limit, $offset);
	}
	
	/**
	 * 统计用户(A)在帖子(B)中的回复数
	 *
	 * @param int $tid
	 * @param int $uid
	 * @return int
	 */
	public function countPostByTidAndUid($tid, $uid) {
		if (empty($tid) || empty($uid)) return 0;
		return $this->_getPostDao()->countPostByTidAndUid($tid, $uid);
	}
	
	/**
	 * 统计帖子(A)中的ID小于回复(B)的回复个数
	 *
	 * @param int $tid
	 * @param int $pid
	 * @return int
	 */
	public function countPostByTidUnderPid($tid, $pid) {
		if (empty($tid) || empty($pid)) return 0;
		return $this->_getPostDao()->countPostByTidUnderPid($tid, $pid);
	}
	
	/**
	 * 获取用户(A)在帖子(B)中的回复
	 *
	 * @param int $tid
	 * @param int $uid
	 * @param int $limit
	 * @param int $offset
	 * @param bool $asc
	 * @return array
	 */
	public function getPostByTidAndUid($tid, $uid, $limit = 20, $offset = 0, $asc = true) {
		if (empty($tid) || empty($uid)) return array();
		return $this->_getPostDao()->getPostByTidAndUid($tid, $uid, $limit, $offset, $asc);
	}

	/**
	 * 统计回复数(搜索)
	 *
	 * @param object $so
	 * @return int
	 */
	public function countSearchPost(PwPostSo $so) {
		return $this->_getPostDao()->countSearchPost($so->getData());
	}

	/**
	 * 搜索回复
	 *
	 * @param object $so
	 * @return array
	 */
	public function searchPost(PwPostSo $so, $limit = 20, $offset = 0) {
		return $this->_getPostDao()->searchPost($so->getData(), $so->getOrderby(), $limit, $offset);
	}

	/**
	 * 增加一个回复
	 *
	 * @param object $replyDm 回复数据模型
	 * @return array
	 */
	public function addPost(PwReplyDm $replyDm) {
		if (($result = $replyDm->beforeAdd()) !== true) {
			return $result;
		}
		return $this->_getPostDao()->addPost($replyDm->getData());
	}
	
	/**
	 * 更新回复
	 *
	 * @param int $pid 回复id
	 * @param object $replyDm 回复数据模型
	 * @return mixed
	 */
	public function updatePost(PwReplyDm $replyDm) {
		if (($result = $replyDm->beforeUpdate()) !== true) {
			return $result;
		}
		return $this->_getPostDao()->updatePost($replyDm->pid, $replyDm->getData(), $replyDm->getIncreaseData());
	}
	
	/**
	 * 批量更新帖子
	 *
	 * @param array $pids 回复id
	 * @param object $replyDm 帖子数据模型
	 * @return mixed
	 */
	public function batchUpdatePost($pids, PwReplyDm $replyDm) {
		if (empty($pids) || !is_array($pids)) return false;
		if (($result = $replyDm->beforeUpdate()) !== true) {
			return $result;
		}
		return $this->_getPostDao()->batchUpdatePost($pids, $replyDm->getData(), $replyDm->getIncreaseData());
	}

	/**
	 * 批量更新帖子
	 *
	 * @param array $tids 帖子id
	 * @param object $replyDm 帖子数据模型
	 * @return mixed
	 */
	public function batchUpdatePostByTid($tids, PwReplyDm $replyDm) {
		if (empty($tids)) return false;
		if (($result = $replyDm->beforeUpdate()) !== true) {
			return $result;
		}
		return $this->_getPostDao()->batchUpdatePostByTid($tids, $replyDm->getData(), $replyDm->getIncreaseData());
	}

	/**
	 * 还原帖子disabled属性
	 *
	 * @param array $tids
	 * @return bool
	 */
	public function revertPost($tids) {
		if (empty($tids) || !is_array($tids)) return false;
		return $this->_getPostDao()->revertPost($tids);
	}
	
	/**
	 * 根据回复id批量删除回复
	 *
	 * @param array $pids 回复id
	 * @return bool
	 */
	public function batchDeletePost($pids) {
		if (empty($pids) || !is_array($pids)) return false;
		return $this->_getPostDao()->batchDeletePost($pids);
	}

	/**
	 * 根据帖子id批量删除回复
	 *
	 * @param array $tids 帖子id
	 * @return bool
	 */
	public function batchDeletePostByTid($tids) {
		if (empty($tids) || !is_array($tids)) return false;
		return $this->_getPostDao()->batchDeletePostByTid($tids);
	}
	
	public function getHit($tid) {
		return $this->_getThreadHitsDao()->get(intval($tid));
	}

	public function fetchHit($tids) {
		if (empty($tids) || !is_array($tids)) return array();
		return $this->_getThreadHitsDao()->fetch($tids);
	}

	public function updateHits($tid, $hits) {
		return $this->_getThreadHitsDao()->update(intval($tid), intval($hits));
	}

	public function syncHits() {
		return $this->_getThreadHitsDao()->syncHits();
	}

	protected function _getDaoMap() {
		return array(
			self::FETCH_MAIN	=> 'forum.dao.PwThreadsDao',
			self::FETCH_CONTENT	=> 'forum.dao.PwThreadsContentDao'
		);
	}

	protected function _getThreadDao($fetchmode = self::FETCH_MAIN) {
		return Wekit::loadDaoFromMap($fetchmode, $this->_getDaoMap(), 'PwThread');
	}

	protected function _getThreadMergeDao() {
		return Wekit::loadDao('forum.dao.PwThreadMergeDao');
	}

	protected function _getPostDao() {
		return Wekit::loadDao('forum.dao.PwPostsDao');
	}

	protected function _getThreadHitsDao() {
		return Wekit::loadDao('forum.dao.PwThreadsHitsDao');
	}
}