<?php

namespace app\api\controller;

use app\common\controller\Api;

/**
 * 首页接口
 */
class Research extends Api
{
    protected $noNeedLogin = ['*'];
    protected $noNeedRight = ['*'];
    protected $topic = null;
    protected $author = null;
    protected $research = null;

    public function _initialize()
    {
        parent::_initialize();
        $this->topic = new \app\admin\model\research\Topic;
        $this->author = new \app\admin\model\research\Author;
        $this->research = new \app\admin\model\research\Index;
    }

    /**
     * get topic
     *
     */
    public function getTopic()
    {
        $exp = new \think\db\Expression("sort!=0 desc,sort");
        $list = $this->topic->order($exp)->select();
        $this->success('Request succeeded',$list);
    }


    /**
     * get author
     *
     */
    public function getAuthor()
    {
        $exp = new \think\db\Expression("sort!=0 desc,sort");
        $list = $this->author->order($exp)->select();
        $this->success('Request succeeded',$list);
    }

    /**
     * get research
     *
     */
    public function getResearch()
    {
        $keyword = (string)$this->request->request('keyword');
        $topic_id = $this->request->request('topic_id','');
        $author_id = $this->request->request('author_id','');
        $page = (int)$this->request->request('page');
        $limit = (int)$this->request->request('limit',10);

        $where = [];
        $topic_where = [];
        $author_where = [];
        $where['status'] = 'Live';
        $where['publishedtime'] = ['lt',time()];

        if($topic_id){
            $topic_id_arr = explode(',',$topic_id);
            $topic_where = '';
            foreach ($topic_id_arr as $k=>$v){
                $topic_where .= " or FIND_IN_SET('{$v}', topic_ids)";
            }
            $topic_where = trim($topic_where,' or');
        }

        if($author_id){
            $author_where_arr = explode(',',$author_id);
            $author_where = '';
            foreach ($author_where_arr as $k=>$v){
                $author_where .= " or FIND_IN_SET('{$v}', author)";
            }
            $author_where = trim($author_where,' or');
        }

        if($keyword){
            $where['title'] = ['like','%'.$keyword.'%'];
        }

        $exp = new \think\db\Expression("sort!=0 desc,sort,publishedtime desc");
        $list = $this->research->field('id,title,author,topic_ids,cover_image,tag,description,status,publishedtime,createtime')->where($topic_where)->where($author_where)->where($where)->order($exp)->paginate($limit);

        foreach ($list as $row) {
            if(strpos($row->author,',') || is_numeric($row->author)){
                $author = \app\admin\model\research\Author::where(['id'=>['in',$row->author]])->column('name');
                $row->author = implode(',',$author);
            }

            $topic = \app\admin\model\research\Topic::where(['id'=>['in',$row->topic_ids]])->column('title');
            $row->topic_names = implode(',',$topic);
        }

        $this->success('Request succeeded',$list);
    }

    /**
     * view research
     *
     */
    public function viewResearch()
    {
        $research_id = (int)$this->request->request('research_id',0);
        if(!$research_id){
            $this->error('Parameter error');
        }

        $where = [];
        $where['id'] = $research_id;
        $info = $this->research->where($where)->find();
        if(!$info){
            $this->error('Research does not exist');
        }

        $this->research->where($where)->setInc('views',1);

        if(strpos($info->author,',') || is_numeric($info->author)){
            $author = \app\admin\model\research\Author::where(['id'=>['in',$info->author]])->column('name');
            $info->author = implode(',',$author);
        }

        $this->success('Request succeeded',$info);
    }

    /**
     * recommend research
     *
     */
    public function recommendResearch()
    {
        $research_id = (int)$this->request->request('research_id',0);
        $page = (int)$this->request->request('page');
        $limit = (int)$this->request->request('limit',10);

        if(!$research_id){
            $this->error('Parameter error');
        }

        $info  = $this->research->where(['id'=>$research_id])->find();
        if(!$info){
            $this->error('Research does not exist');
        }

        $topic_ids_arr = explode(',',$info->topic_ids);

        $where = [];
        foreach ($topic_ids_arr as $k=>$v){
            $where[] = "FIND_IN_SET('{$v}', topic_ids)";
        }

        if ($where) {
            $where = "(" . implode(' OR ', $where) . ")";
        }

        $exp = new \think\db\Expression("sort!=0 desc,sort,publishedtime desc");
        $list = $this->research->where($where)->where(['id'=>['neq',$research_id],'status'=>'Live'])->order($exp)->paginate($limit);

        $this->success('Request succeeded',$list);
    }


    /**
     * search research title
     *
     */
    public function searchTitle()
    {
        $keyword = (string)$this->request->request('keyword');

        if(!$keyword){
            $this->error('Parameter error');
        }

        $exp = new \think\db\Expression("sort!=0 desc,sort,publishedtime desc");
        $research_list  = $this->research->field('id,title,topic_ids,author,cover_image,publishedtime')->where(['title'=>['like','%'.$keyword.'%']])->order($exp)->select();

        foreach ($research_list as $row) {
            $topic = \app\admin\model\research\Topic::where(['id'=>['in',$row->topic_ids]])->column('title');
            $row->topic_names = implode(',',$topic);
        }

        $exp = new \think\db\Expression("sort!=0 desc,sort");
        $author_list  = $this->author->field('id,avatar,name')->where(['name'=>['like','%'.$keyword.'%']])->order($exp)->select();

        $data = [
            'research' => $research_list,
            'author' => $author_list,
        ];
        $this->success('Request succeeded',$data);
    }

    /**
     * Filter Content
     *
     */
    public function filterContent()
    {
        $list  = $this->research->select();

        foreach ($list as $k=>$v){
            $data = [
                'content'=>str_replace('background-color:#FFFFFF',' ',$v['content'])
            ];
            $this->research->where(['id'=>$v['id']])->update($data);
        }

        $this->success('Request succeeded');
    }
}