<?php

namespace app\models;

use Yii;

/**
 * This is the model class for table "{{%cart}}".
 *
 * @property int $id ID
 * @property int $cx_mch_id 平台商户ID
 * @property int $user_id 用户ID
 * @property int $goods_id 商品ID
 * @property int $attr_id 规格ID
 * @property int $num 数量
 * @property int $is_delete 是否删除
 * @property string|null $plugin_sign 插件标识
 * @property int $created_at 添加时间
 * @property int $updated_at 更新时间
 * @property int $deleted_at 删除时间
 * @property string|null $attr_info 规格信息，JSON
 */
class Cart extends \yii\db\ActiveRecord
{
    const CART_STATUS_CACHE = 'cart_status_cache';
    
    /**
     * {@inheritdoc}
     */
    public static function tableName()
    {
        return '{{%cart}}';
    }

    /**
     * {@inheritdoc}
     */
    public function rules()
    {
        return [
            [['attr_info', 'plugin_sign'], 'trim'],
            [['cx_mch_id', 'user_id', 'goods_id', 'attr_id', 'num', 'is_delete', 'created_at', 'updated_at', 'deleted_at'], 'integer'],
            [['user_id', 'goods_id'], 'required'],
            [['attr_info'], 'string'],
            [['plugin_sign'], 'string', 'max' => 50],
        ];
    }

    /**
     * {@inheritdoc}
     */
    public function attributeLabels()
    {
        return [
            'id' => 'ID',
            'cx_mch_id' => '平台商户ID',
            'user_id' => '用户ID',
            'goods_id' => '商品ID',
            'attr_id' => '规格ID',
            'num' => '数量',
            'is_delete' => '是否删除',
            'plugin_sign' => '插件标识',
            'created_at' => '添加时间',
            'updated_at' => '更新时间',
            'deleted_at' => '删除时间',
            'attr_info' => '规格信息，JSON',
        ];
    }
    
        
    public function beforeSave($insert) {
        if(parent::beforeSave($insert)){
            if($this->isNewRecord){
                $this->created_at = time();
            }
            $this->updated_at = time();
            if($this->is_delete == 1)
                $this->deleted_at = time();            
            return true;
        } else {
            return false;
        }
    }     
    

    public static function cacheStatusGet()
    {
        $cart_status_cache = self::CART_STATUS_CACHE . \Yii::$app->user->identity->id;
        return \Yii::$app->cache->get($cart_status_cache);
    }

    public static function cacheStatusSet(bool $info)
    {
        $cart_status_cache = self::CART_STATUS_CACHE . \Yii::$app->user->identity->id;
        \Yii::$app->cache->set($cart_status_cache, $info, 0);
    }

    public function getAttrs()
    {
        return $this->hasOne(GoodsAttr::className(), ['id' => 'attr_id'])->where(['is_delete' => 0]);
    }

    public function getGoods()
    {
        return $this->hasOne(Goods::className(), ['id' => 'goods_id'])->where(['is_delete' => 0]);
    }    
}