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

Wind::import('SRV:forum.bo.PwThreadBo');
Wind::import('SRV:forum.bo.PwForumBo');
Wind::import('SRV:attach.srv.PwAttachDisplay');
Wind::import('LIB:ubb.PwUbbCode');
Wind::import('LIB:ubb.config.PwUbbCodeConvertThread');
Wind::import('LIB:ubb.config.PwUbbCodeConvertConfig');

/**
 * 帖子显示流程
 *
 * -> 1.check 检查帖子显示运行环境
 * -> 2.appendDo(*) 增加帖子显示时的行为动作,例:投票、悬赏等(可选)
 * -> 3.execute 数据准备
 * -> 4.get... 获取数据以满足页面显示要求
 *
 * @author Jianmin Chen <sky_hold@163.com>
 * @copyright 2003-2103 phpwind.com
 * @license http://www.phpwind.com
 * @version $Id: PwThreadDisplay.php 29739 2013-06-28 07:45:34Z taishici $
 * @package forum
 */

class PwThreadDisplay extends PwBaseHookService {

	public $page = 1;
	public $perpgae = 20;
	public $total = 0;
	public $maxpage;

	public $tid;
	public $fid;
	public $isBM;
	public $readdb = array();

	public $user;	//PwUserBo
	public $thread;	//PwThreadBo
	public $forum;	//PwForumBo
	public $attach;	//PwAttachDisplay

	protected $_ds;
	protected $users = array();
	protected $area = array();
	protected $_floorName;
	protected $_definedFloorName;

	private $imgLazy = false;

	public function __construct($tid, PwUserBo $user) {
		$this->thread = new PwThreadBo($tid);
		$this->tid = $tid;
		$this->fid = $this->thread->fid;
		$this->forum = new PwForumBo($this->fid);
		$this->user = $user;
		$this->isBM = $this->forum->isBM($this->user->username);
		$config = Wekit::C('bbs');
		$this->_floorName = $config['read.floor_name'];
		$this->_definedFloorName = $this->_parseDefindFloorName($config['read.defined_floor_name']);
		parent::__construct();
	}

	/**
	 * 检查帖子显示运行环境
	 *
	 * @return bool|PwError
	 */
	public function check() {
		if (!$this->thread->isThread()) {
			return new PwError('BBS:forum.thread.exists.not');
		}
		if (!$this->forum->isForum()) {
			return new PwError('BBS:forum.exists.not');
		}
		if (($result = $this->forum->allowVisit($this->user)) !== true) {
			return new PwError('BBS:forum.permissions.visit.allow', array('{grouptitle}' => $this->user->getGroupInfo('name')));
		}
		if (($result = $this->forum->allowRead($this->user)) !== true) {
			return new PwError('BBS:forum.permissions.read.allow', array('{grouptitle}' => $this->user->getGroupInfo('name')));
		}
		if (!$this->forum->foruminfo['allow_read'] && !$this->user->getPermission('allow_read') && $_COOKIE) {
			return new PwError('permission.read.allow', array('{grouptitle}' => $this->user->getGroupInfo('name')));
		}
		if ($this->thread->isDeleted()) {
			return new PwError('BBS:forum.thread.deleted');
		}
		if (!$this->thread->isChecked() && $this->thread->authorid != $this->user->uid && !$this->isBM) {
			$permission = $this->user->getPermission('panel_bbs_manage', false, array());
			if (!$permission['thread_check']) return new PwError('BBS:forum.thread.ischeck');
		}
		if ($this->thread->info['tpcstatus'] && Pw::getstatus($this->thread->info['tpcstatus'], PwThread::STATUS_CLOSED) && !$this->user->getPermission('operate_thread.lock', $this->isBM)) {
			return new PwError('BBS:forum.thread.closed');
		}
		return $this->runWithVerified('check');
	}

	/**
	 * 逻辑处理，数据准备
	 */
	public function execute(PwReadDataSource $ds) {
		PwHook::registerHook('s_PwUbbCode_convert', array(
			'class' => 'SRV:forum.srv.PwThreadDisplay',
			'method' => 'escapeSpace',
			'loadway' => 'static'
		));
		$this->_ds = $ds;
		$ds->execute();
		$this->total = $ds->total;
		$this->page = $ds->page;
		$this->perpage = $ds->perpage;
		$this->maxpage = $ds->maxpage;
		$start = $ds->firstFloor;
		$this->bulidUsers($ds->getUser());
		$this->readdb =& $ds->getData();
		$this->_initAttachs($ds->getAttach());

		foreach ($this->readdb as $key => $read) {
			$this->readdb[$key] = $this->bulidRead($read, $start++);
		}
		$this->thread->hit();
	}

	/**
	 * 加工帖子数据
	 *
	 * @param array $read 帖子数据(来自数据库)
	 * @param int $lou 楼层
	 * @return array
	 */
	public function bulidRead($read, $lou) {
		$read['lou'] = $lou;
		if (!$read['usehtml']) {
			$read['content'] = WindSecurity::escapeHTML($read['content']);
		}
		$tip = '';
		$display = 1;
		if ($read['ifshield']) {
			list($tip, $display) = $this->_bulidShieldContent();
		} elseif ($this->users[$read['created_userid']]['groupid'] == '6') {
			list($tip, $display) = $this->_bulidBanContent();
		}
		if ($display) {
			$read['content'] = $tip . $this->_bulidContent($read);
		} else {
			$read['content'] = $tip;
			$this->attach && $this->attach->deleteList($read['pid']);
		}
		return $this->runWithFilters('bulidRead', $read);
	}

	/**
	 * 获取主题信息
	 *
	 * @return array
	 */
	public function getThreadInfo() {
		return $this->thread->getThreadInfo();
	}

	/**
	 * 获取帖子内容数据
	 *
	 * @return array
	 */
	public function getList() {
		return $this->readdb;
	}

	/**
	 * 获取版块对象
	 *
	 * @return PwForumBo
	 */
	public function getForum() {
		return $this->forum;
	}

	/**
	 * 获取用户信息
	 *
	 * @return array
	 */
	public function getUsers() {
		return $this->users;
	}

	public function getArea() {
		return $this->area;
	}

	/**
	 * 获取楼层名称
	 *
	 * @param int $lou 楼层号
	 * @return string
	 */
	public function getFloorName($lou) {
		return isset($this->_definedFloorName[$lou]) ? $this->_definedFloorName[$lou] : $lou . $this->_floorName;
	}

	public function getTopicTypeName($id) {
		$array = $this->_getTopicTypeDs()->getTopicType($id);
		return $array['name'];
	}

	/**
	 * 获取当前路径导航条
	 *
	 * @return string
	 */
	public function getHeadguide() {
		return $this->forum->headguide()
			. $this->forum->bulidGuide(array(Pw::substrs($this->thread->info['subject'], 30), WindUrlHelper::createUrl('bbs/read/run', array('tid' => $this->tid, 'fid' => $this->fid))));
	}

	public function setUrlArg($key, $value) {
		$this->_ds->setUrlArg($key, $value);
	}

	public function getUrlArgs($except = '') {
		return $this->_ds->getUrlArgs($except);
	}

	/**
	 * 帖子内容中，图片懒加载设置
	 *
	 * @param bool $isLazy
	 */
	public function setImgLazy($isLazy) {
		$this->imgLazy = empty($isLazy) ? false : true;
	}

	/**
	 * 准备用户显示信息
	 *
	 * @param array $uids 用户id序列
	 * @return array
	 */
	public function bulidUsers($uids) {
		$groupRight = Wekit::cache()->get('group_right');
		$uids = array_unique($uids);
		$users = Wekit::load('user.PwUser')->fetchUserByUid($uids, PwUser::FETCH_ALL);
		in_array('0', $uids) && $users['0'] = $this->_getGuestInfo();
		foreach ($users as $key => $value) {
			$value['groupid'] == '0' && $value['groupid'] = $value['memberid'];
			if ($value['bbs_sign']) {
				$value['bbs_sign'] = $this->_bulidBbsSign($value['bbs_sign'], $groupRight[$value['groupid']], $value['status']);
			}
			$users[$key] = $value;
		}
		$this->users = $this->runWithFilters('bulidUsers', $users);
	}

	public static function escapeSpace($str) {
		$str = str_replace(array('  ', "\n ", "\n"), array(' &nbsp;', '<br />&nbsp;', '<br />'), $str);
		$str[0] === ' ' && $str = '&nbsp;' . ltrim($str);
		return $str;
	}


	protected function _bulidContent($read) {
		if (!$read['useubb']) {
			return self::escapeSpace($read['content']);
		}
		$ubb = new PwUbbCodeConvertThread($this->thread, $read, $this->user);
		$ubb->setImgLazy($this->imgLazy);
		$this->attach && $this->attach->has($read['pid']) && $ubb->setAttachParser($this->attach);
		$read['reminds'] && $ubb->setRemindUser($read['reminds']);
		return PwUbbCode::convert($read['content'], $ubb);
	}

	protected function _bulidShieldContent() {
		$tip = '<div class="shield">此帖已被屏蔽</div>';
		if (!$this->user->getPermission('operate_thread.shield', $this->isBM)) {
			return array($tip, 0);
		}
		return array($tip, 1);
	}

	protected function _bulidBanContent() {
		$tip = '<div class="shield">用户被禁言,该主题自动屏蔽!</div>';
		if (!$this->user->getPermission('operate_thread.ban', $this->isBM)) {
			return array($tip, 0);
		}
		return array($tip, 1);
	}

	protected function _bulidBbsSign($sign, $groupRight, $userstatus) {
		if (!$groupRight['allow_sign'] || Pw::getstatus($userstatus, PwUser::STATUS_BAN_SIGN)) {
			return '';
		}
		$sign = WindSecurity::escapeHTML($sign);
		if ($groupRight['sign_ubb'] && (Pw::getstatus($userstatus, PwUser::STATUS_SIGN_USEUBB))) {
			$ubb = new PwUbbCodeConvertConfig();
			$ubb->isConverImg = $groupRight['sign_ubb_img'] ? true : false;
			$sign = PwUbbCode::convert($sign, $ubb);
		}
		return $sign;
	}

	protected function _parseDefindFloorName($string) {
		$array = array(0 => '楼主');
		$_tmp = explode("\n", $string);
		foreach ($_tmp as $value) {
			list($key, $name) = explode(':', trim($value));
			$names = explode(',', $name);
			foreach ($names as $v) {
				$array[$key++] = $v;
			}
		}
		return $array;
	}

	protected function _initAttachs($pids) {
		if ($pids) {
			$this->attach = new PwAttachDisplay($this->tid, $pids, $this->user, $this->imgLazy);
		}
	}

	protected function _getGuestInfo() {
		$info = array(
			'groupid'	=> 2,
			'postnum'	=> 0,
			'fans'		=> 0,
			'follows'	=> 0,
			'lastvisit' => Pw::getTime()
		);
		Wind::import('SRV:credit.bo.PwCreditBo');
		foreach (PwCreditBo::getInstance()->cType as $key => $value) {
			$info['credit' . $key] = 0;
		}
		return $info;
	}

	protected function _getTopicTypeDs() {
		return Wekit::load('forum.PwTopicType');
	}

	protected function _getInterfaceName() {
		return 'PwThreadDisplayDoBase';
	}
}