<?php

namespace Home\Controller;

use Gy_Library\DBCont;
use Gy_Library\HomeController;

class SearchController extends HomeController
{

    public function index()
    {
        $this->meta_title = '搜索';
        //分享标题
        $this->share_title = '搜索';
        $word = I('get.word');
        $this->word = $word;
        if (isset($word) && $word ==='') {
            $map['_string'] = '1=0';
            $this->show_keywords=1;
            $keyword_res = D('Keywords')->where(['status'=>DBCont::YES_BOOL_STATUS])->order('total_time desc,sort asc,id asc')->select();
            $this->keyword =$keyword_res;
        }

        if (isset($word) && $word !=='') {
//            $condition = array('like', '%' . htmlentities($word) . '%');
            $condition = array('like', '%' . $word . '%');
            $map['status'] = DBCont::NORMAL_STATUS;
            $map['title|content|author'] = array(
                $condition,
                $condition,
                $condition,
                '_multi'=>true
            );
            $this->search_title = $word;

        }

        $model =  D('News');
        //页码
        $page = !empty(I('page'))?I('page'):1;
        $per_page = C('HOME_PER_PAGE_NUM');
        $count = $model->getListForCount($map);
        if($per_page === false){
            $para = array($count);
        }
        else{
            $para = array($count, $per_page);
        }
        $search_res = $model->where($map)->page($page, $per_page)->order('id desc')->select();
        $this ->count =$count;
        foreach ($search_res as &$item){
            $cate_id = explode(',',$item['cate_id']);
            $item['cate_id_desc'] = $cate_id;
            $item['url'] = '/Home/news/detail?cate_id='.$item['cate_id_desc'][0].'&id='.$item['id'];
            $item['select'] = 'much';
        }
        $class = new \ReflectionClass('\Gy_Library\GyPage');
        $page_object = $class->newInstanceArgs($para);
        $pagination = $page_object->show();
        $this->assign('pagination', $pagination);
        $this->assign('res', $search_res);
        $this->display();
    }

     public function sub_key_word($str,$key,$len=100,$enc='utf-8'){
        $strlen = mb_strlen($str,$enc);
        $keylen = mb_strlen($key,$enc);
        $keypos = mb_strpos($str,$key,0,$enc);
        $leftpos = $keypos - 1;
        $rightpos = $keypos + $keylen;
        if($keylen > $len){
            return mb_substr($key,0,$len,$enc)."...";
        }
        $result = $key;
        for($i = 0;$i<$len - $keylen;$i++){
            if($leftpos >= 0){
                $result = mb_substr($str,$leftpos--,$leftpos+$len,$enc);
            }else{
                $result .= mb_substr($str,$rightpos++,1,$enc);
            }
        }
        if($leftpos >= 0){
            $result = "...".$result;
        }
        if($rightpos < $strlen){
            $result .= "...";
        }
        return $result;
    }
}