<?php

defined('IN_PHPCMS') or exit('No permission resources.');

pc_base::load_sys_class('form','',0);

pc_base::load_sys_class('format','',0);

class index {

	function __construct() {

		$this->db = pc_base::load_model('search_model');

		$this->content_db = pc_base::load_model('content_model');

	}

	

	/**

	 * 关键词搜索

	 */

	public function init() {

		//获取siteid

		$siteid = isset($_REQUEST['siteid']) && trim($_REQUEST['siteid']) ? intval($_REQUEST['siteid']) : 1;

		$SEO = seo($siteid);



		//搜索配置

		$search_setting = getcache('search');

		$setting = $search_setting[$siteid];

	    $CATEGORYS = getcache('category_content_'.$siteid,'commons');

	    $catid=7;



	    $CAT = $CATEGORYS[$catid];

	    $arrparentid = explode(',', $CAT['arrparentid']);

		$search_model = getcache('search_model_'.$siteid);

		$type_module = getcache('type_module_'.$siteid);



		if(isset($_GET['q'])) {

			if(trim($_GET['q'])=='') {

				//header('Location: '.APP_PATH.'index.php?m=search');exit;

			    showmessage('Please enter the product keyword！', HTTP_REFERER);

			}

			$typeid = empty($_GET['typeid']) ? 48 : intval($_GET['typeid']);

			$time = empty($_GET['time']) || !in_array($_GET['time'],array('all','day','month','year','week')) ? 'all' : trim($_GET['time']);

			$page = isset($_GET['page']) ? intval($_GET['page']) : 1;

			$pagesize = 10;

			$q = safe_replace(trim($_GET['q']));

			$q = new_html_special_chars(strip_tags($q));

			$q = str_replace('%', '', $q);	//过滤'%'，用户全文搜索

			$search_q = $q;	//搜索原内容

			

			//按时间搜索

			if($time == 'day') {

				$search_time = SYS_TIME - 86400;

				$sql_time = ' AND adddate > '.$search_time;

			} elseif($time == 'week') {

				$search_time = SYS_TIME - 604800;

				$sql_time = ' AND adddate > '.$search_time;

			} elseif($time == 'month') {

				$search_time = SYS_TIME - 2592000;

				$sql_time = ' AND adddate > '.$search_time;

			} elseif($time == 'year') {

				$search_time = SYS_TIME - 31536000;

				$sql_time = ' AND adddate > '.$search_time;

			} else {

				$search_time = 0;

				$sql_time = '';

			}

			if($page==1 && !$setting['sphinxenable']) {

				//精确搜索

				$commend = $this->db->get_one("`typeid` = '$typeid' $sql_time AND `data` like '%$q%'");

			} else {

				$commend = '';

			}

			//如果开启sphinx

			if($setting['sphinxenable']) {

				$sphinx = pc_base::load_app_class('search_interface', '', 0);

				$sphinx = new search_interface();

				

				$offset = $pagesize*($page-1);

				$res = $sphinx->search($q, array($siteid), array($typeid), array($search_time, SYS_TIME), $offset, $pagesize, '@weight desc');

				$totalnums = $res['total'];

				//如果结果不为空

				if(!empty($res['matches'])) {

					$result = $res['matches'];

				}

			} else {

				pc_base::load_sys_class('segment', '', 0);

				$segment = new segment();

				//分词结果

				$segment_q = $segment->get_keyword($segment->split_result($q));

				//如果分词结果为空

				if(!empty($segment_q)) {

					$sql = "`siteid`= '$siteid' AND `typeid` = '$typeid' $sql_time AND MATCH (`data`) AGAINST ('$segment_q' IN BOOLEAN MODE)";

				} else {

					$sql = "`siteid`= '$siteid' AND `typeid` = '$typeid' $sql_time AND `data` like '%$q%'";

				}



				$result = $this->db->listinfo($sql, 'searchid DESC', $page, 10);

			}



			//如果开启相关搜索功能

			if($setting['relationenble']) {

				//如果关键词长度在8-16之间，保存关键词作为relation search

				$this->keyword_db = pc_base::load_model('search_keyword_model');



				if(strlen($q) < 17 && strlen($q) > 5 && !empty($segment_q)) {

					$res = $this->keyword_db->get_one(array('keyword'=>$q));

					if($res) {

						//关键词搜索数+1

						//$this->keyword_db->update(array('searchnums'=>'+=1'), array('keyword'=>$q));

					} else {

						//关键词转换为拼音

						pc_base::load_sys_func('iconv');

						$pinyin = gbk_to_pinyin($q);

						if(is_array($pinyin)) {

							$pinyin = implode('', $pinyin);

						}

						$this->keyword_db->insert(array('keyword'=>$q, 'searchnums'=>1, 'data'=>$segment_q, 'pinyin'=>$pinyin));

					}

				}

				//相关搜索

				if(!empty($segment_q)) {

					$relation_q = str_replace(' ', '%', $segment_q);

				} else {

					$relation_q = $q;

				}

				$relation = $this->keyword_db->select("MATCH (`data`) AGAINST ('%$relation_q%' IN BOOLEAN MODE)", '*', 10, 'searchnums DESC');

			}

				

			//如果结果不为空

			  if(!empty($result) || !empty($commend['id'])) {

				//开启sphinx后文章id取法不同

				if($setting['sphinxenable']) {

					foreach($result as $_v) {

						$sids[] = $_v['attrs']['id'];

					}

				} else {

					foreach($result as $_v) {

						$sids[] = $_v['id'];

					}

				}



				if(!empty($commend['id'])) {

					$sids[] = $commend['id'];

				}

				$sids = array_unique($sids);



				$where = to_sqls($sids, '', 'id');

				//获取模型id

				$model_type_cache = getcache('type_model_'.$siteid,'search');

				$model_type_cache = array_flip($model_type_cache);

				$modelid = $model_type_cache[$typeid];



				//是否读取其他模块接口

				if($modelid) {

					$this->content_db->set_model($modelid);

					

					/**

					 * 如果表名为空，则为黄页模型

					 */

					if(empty($this->content_db->model_tablename)) {

						$this->content_db = pc_base::load_model('yp_content_model');

						$this->content_db->set_model($modelid);



					}



					if($setting['sphinxenable']) {

						$sdata = $this->content_db->listinfo($where, 'id DESC', 1, $pagesize);

						$pages = pages($totalnums, $page, $pagesize);

					} else {

						$sdata = $this->content_db->select($where, '*');

						$pages = $this->db->pages;

						$totalnums = $this->db->number;

					}

				

					//如果分词结果为空

					if(!empty($segment_q)) {

						$replace = explode(' ', $segment_q);

						foreach($replace as $replace_arr_v) {

							$replace_arr[] =  '<font color=red>'.$replace_arr_v.'</font>';

						}

						foreach($sdata as $_k=>$_v) {

							$sdata[$_k]['title'] = str_replace($replace, $replace_arr, $_v['title']);

							$sdata[$_k]['description'] = str_replace($replace, $replace_arr, $_v['description']);

						}

					} else {

						foreach($sdata as $_k=>$_v) {

							$sdata[$_k]['title'] = str_replace($q, '<font color=red>'.$q.'</font>', $_v['title']);

							$sdata[$_k]['description'] = str_replace($q, '<font color=red>'.$q.'</font>', $_v['description']);

						}

					}

				} else {

					//读取专辑搜索接口

					$special_api = pc_base::load_app_class('search_api', 'special');

 					$sdata = $special_api->get_search_data($sids);

					$totalnums = count($sdata);

				}

			}

			$execute_time = execute_time();

			$pages = isset($pages) ? $pages : '';

			$totalnums = isset($totalnums) ? $totalnums : 0;

			$sdata = isset($sdata) ? $sdata : '';

			

			include	template('search','list');

		} else {

			include	template('search','index');

		}

	}



	

	public function public_get_suggest_keyword() {

		$url = $_GET['url'].'&q='.$_GET['q'];

		$trust_url = array('c8430fcf851e85818b546addf5bc4dd3');

		$urm_md5 = md5($url);

		if (!in_array($urm_md5, $trust_url)) exit;

		

		$res = @file_get_contents($url);

		if(CHARSET != 'gbk') {

			$res = iconv('gbk', CHARSET, $res);

		}

		echo $res;

	}

	

	/**

	 * 提示搜索接口

	 * TODO 暂时未启用，用的是google的接口

	 */

	public function public_suggest_search() {

		//关键词转换为拼音

		pc_base::load_sys_func('iconv');

		$pinyin = gbk_to_pinyin($q);

		if(is_array($pinyin)) {

			$pinyin = implode('', $pinyin);

		}

		$this->keyword_db = pc_base::load_model('search_keyword_model');

		$suggest = $this->keyword_db->select("pinyin like '$pinyin%'", '*', 10, 'searchnums DESC');

		

		foreach($suggest as $v) {

			echo $v['keyword']."\n";

		}



		

	}

}

?>