<?php
namespace common\services;
use Yii;
use common\components\dict;
use common\models\xhRecommend;
use common\models\xhGoods;

class xhRecommendService {

	public static function getByCondition($condition)
	{
		return xhRecommend::getByCondition($condition);
	}

	/**
	 * 获取首页推荐图片明细列表
	 */
	public static function getSlide($sjId)
	{
		$recommend		= self::getBySjId($sjId);
		$slide			= $recommend['slide'];
		$list			= [];
		if(!empty($slide)){
			$list		= json_decode($slide,true);
		}
		return $list;
	}

	/**
	 * 获取推荐商品的明细列表
	 */
	public static function getGoodsList($sjId)
	{
		$recommend		= self::getBySjId($sjId);
		$goods			= $recommend['goods'];
		$list			= [];
		if(!empty($goods)){
			$arr		= explode(',',trim($goods));
			foreach($arr as $id){
				$list[]	= xhGoodsService::getById($id);
			}
		}
		return $list;
	}

	/**
	 * 取推荐商品的id列表
	 * @param unknown $sjId
	 * @return multitype:
	 */
	public static function getGoodsIds($sjId)
	{
	    $recommend     = self::getBySjId($sjId);
	    $goods              = $recommend['goods'];
	    $arr       = [];
	    if(!empty($goods)){
	        $arr   = explode(',',trim($goods));
	    }
	    return $arr;
	}

	/**
	 * 从推荐商品里去除某个商品
	 */
	public static function wipeGoodsId($id,$sjId)
	{
		$recommend		= xhRecommendService::getBySjId($sjId);
		$goods			= $recommend['goods'];
		if(!empty($goods)){
			$arr		= explode(',',$goods);
			$newGoods	= array_diff($arr,[$id]);
			$string		= implode(',',$newGoods);
			xhRecommendService::updateBySjId($sjId, ['goods' =>$string]);
		}
	}

	/**
	 * 获取推荐信息
	 */
	public static function getBySjId($sjId)
	{
		$recommend		= xhRecommend::find()->where(['sjId' => $sjId])->asArray()->one();
		return $recommend;
	}

	public static function refreshRecommend($sjId)
	{
		$cacheKey	= dict::getCacheKey('recommendGoods').$sjId;
		Yii::$app->redis->executeCommand('DEL', [$cacheKey]);
		self::getBySjId($sjId);
	}

	public static function add($data,$sjId)
	{
		xhRecommend::add($data);
		self::refreshRecommend($sjId);
	}

	public static function updateBySjId($sjId,$data)
	{
		xhRecommend::updateByCondition(['sjId' => $sjId], $data);
		self::refreshRecommend($sjId);
	}

}