<?php
namespace common\services;
use Yii;
use common\components\configDict;
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($merchantId)
	{
		$recommend		= self::getByMerchantId($merchantId);
		$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($merchantId)
	{
		$recommend		= self::getByMerchantId($merchantId);
		$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 $merchantId
	 * @return multitype:
	 */
	public static function getGoodsIds($merchantId)
	{
	    $recommend     = self::getByMerchantId($merchantId);
	    $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($id,$merchantId)
	{
		$recommend		= xhRecommendService::getByMerchantId($merchantId);
		$goods			= $recommend['goods'];
		if(!empty($goods)){
			$arr		= explode(',',$goods);
			$newGoods	= array_diff($arr,[$id]);
			$string		= implode(',',$newGoods);
			xhRecommendService::updateByMerchantId($merchantId, ['goods' =>$string]);
		}
	}

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

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

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

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

}