<?php

namespace app\admin\model;

use think\Model;
use think\Session;

class Channel extends Model
{
    // 表名
    protected $name = 'channel';
    
    // 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 = [

    ];

    /**
     * 根据后台入口和管理员等级来自动读取
     * 1, 如果是从站点后台登录，所有管理员只能读取本站点信息
     * 2, 如果是从总后台登录，管理员读取属于自己的站点的信息，超级管理员无限制
     */
    protected function base($query)
    {
        if (Session::has("user_site_id")) {
            $query->where(['site_id'=> Session::get("user_site_id")]);
        }
    }


    public function Sites()
    {
        return $this->belongsTo('Sites', 'site_id')->field('id,name');
    }

    public function Archives()
    {
        //return $this->belongsTo('Archives', 'id', 'channel_id')->field('channel_id,count(1) as items');
        return $this->hasOne('Archives','channel_id','id')->field('channel_id,count(1) as items');
    }

    /**
     * 读取分类类型
     * @return array
     */
    public static function getTypeList()
    {
        //$typelist = config('site.categorytype');
        return ['channel'=>__('Channel'), 'list'=>__('List'), 'redirect'=>__('Redirect')];
    }


    public static function getFlagList()
    {
        return ['hot' => __('Hot'), 'recommend' => __('Recommend')];
    }

    public function getFlagTextAttr($value, $data)
    {
        if(!isset($data['flag'])) return '';
        $value = $value ? $value : $data['flag'];
        $valueArr = explode(',', $value);
        $list = $this->getFlagList();
        return implode(',', array_intersect_key($list, array_flip($valueArr)));
    }

    /**
     * 读取分类列表
     * @param string $type 指定类型
     * @param string $status 指定状态
     * @return array
     */
    public static function getChannelArray($type = NULL, $status = NULL)
    {
        $list = collection(self::where(function($query) use($type, $status) {
            if (!is_null($type))
            {
                $query->where('type', '=', $type);
            }
            if (!is_null($status))
            {
                $query->where('status', '=', $status);
            }
        })->order('weigh', 'desc')->select())->toArray();
        return $list;
    }


    /*
    protected static function init()
    {
        self::afterInsert(function ($row) {
            $pk = $row->getPk();
            $row->getQuery()->where($pk, $row[$pk])->update(['weigh' => $row[$pk]]);
        });
    }
    */

    
}