<?php

namespace app\common\model;

use app\common\service\WaterBookService;
use think\Model;
use app\common\library\Redis;

class NovelEndRecommend extends Model
{
    // 表名
    protected $table = 'novel_end_recommend';
    
    // 自动写入时间戳字段
    protected $autoWriteTimestamp = 'int';

    // 定义时间戳字段名
    protected $createTime = 'createtime';
    protected $updateTime = 'updatetime';
    
    // 追加属性
    protected $append = [
        'sex_text',
        'status_text'
    ];

    public function getSexList()
    {
        return ['1' => __('Sex 1'),'2' => __('Sex 2')];
    }

    public function getStatusList()
    {
        return ['normal' => __('Normal'), 'hidden' => __('Hidden')];
    }


    public function getSexTextAttr($value, $data)
    {
        $value = $value ? $value : $data['sex'];
        $list = $this->getSexList();
        return isset($list[$value]) ? $list[$value] : '';
    }

    public function getStatusTextAttr($value, $data)
    {        
        $value = $value ? $value : $data['status'];
        $list = $this->getStatusList();
        return isset($list[$value]) ? $list[$value] : '';
    }

    /**
     * 根据性别获取推荐书籍
     * @param bool $sex 1 = 男 , 2 = 女
     * @param $isWater
     * @return false|mixed|\PDOStatement|string|\think\Collection
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\ModelNotFoundException
     * @throws \think\exception\DbException
     */
    public function getBooksBySex($sex = '1', $isWater = false){
        $redis = Redis::instance();
        $key = $isWater ? 'NERC:W:' . $sex : 'NERC:' . $sex;//清水和非清水书籍key
        $waterWhere = $isWater ? ' and classify_white_list=1' : '';
        if(!$redis->exists($key)){
            $obj = $this->alias('nr')->where(['nr.status'=>'normal','nr.sex'=>$sex]);
            $obj->join('book','book.id=book_id and state=1 '.$waterWhere,'inner');
            $source = $obj->order('weight', 'desc')
                        ->field(['book_id','book_name','click_threshold','nr.status','nr.sex','nr.weight'])
                        ->select();
            if(empty($source)){
                return null;
            }
            $resArr = [];
            $resStrArr = '';
            foreach($source as $item){
                $resArr[] = [
                    'book_id'=>$item['book_id'],
                    'book_name'=>$item['book_name'],
                    'click_threshold'=>$item['click_threshold'],
                ];

                // 构造按权重顺序的字符串数组，插入redis的set后顺序会变为为逆序
                $resStrArr = $item['book_id'] . ':' . $item['book_name'] . ':' . $item['click_threshold'];
                $redis->zadd($key,  $item['weight'], $resStrArr);
            }
            $redis->expire($key,86400);
            return $resArr;
        }else{
            $data = array();
            $source = $redis->Zrevrange($key,0,-1);
            foreach($source as $item){
                $map = explode(':',$item);
                array_push($data,['book_id'=>array_shift($map),'book_name'=>array_shift($map),'click_threshold'=>array_shift($map)]);
            }
            return $data;
        }
    }

}