<?php
namespace common\services;

use common\models\xhGoods;
use Yii;
use common\models\xhGoodsPrice;
use common\components\dict;
use common\services\xhGoodsSettingService;

class xhGoodsPriceService {
    public static function add($data, $multi=false)
    {
        if(!$multi){
            $goodsPrice	= xhGoodsPrice::add($data);
            self::refreshById($goodsPrice['id']);
            return $goodsPrice;
        }else{
            $goodsPriceIds = '';
            foreach ($data as $item){
                $goodsPrice	= xhGoodsPrice::add($item);
                self::refreshById($goodsPrice['id']);
                $goodsPriceIds = $goodsPriceIds . ',' . $goodsPrice['id'];
            }
            $goodsPriceIds = ltrim($goodsPriceIds, ',');
            return $goodsPriceIds;
        }
    }

    public static function updateById($id, $data){
        xhGoodsPrice::updateById($id, $data);
        self::refreshById($id);
    }

    /**
     * 重用软删除的表数据
     * @param $data 商品价格数据（可多个）
     * @param int $num 当商品价格数据为多个时（即二维数组），$num = count($data);
     */
    public static function reuse($data, $num = 1){
        $count = xhGoodsPrice::getCount(['softDel' => 1]);

        if($count >= $num){
            if($num == 1){
                if(count($data) != count($data,1)){
                    $data = $data[0];
                }
                $dbData = xhGoodsPrice::getByCondition(['softDel' => 1]);
                $data['softDel'] = 0;//此字段也要更新，勿忘
                $re = xhGoodsPrice::updateById($dbData['id'], $data);
                if(!$re){
                    Yii::warning('xhGoodsPriceService reuseSoftDel fail!');
                    return false;
                }
                self::refreshById($dbData['id']);
                return $dbData['id'];
            }else{
                $idStr = '';
                foreach($data as $item){
                    $item['softDel'] = 0;//此字段也要更新，勿忘
                    $dbData = xhGoodsPrice::getByCondition(['softDel' => 1]);
                    $re = xhGoodsPrice::updateById($dbData['id'], $item);
                    if(!$re){
                        Yii::warning('xhGoodsPriceService reuseSoftDel fail:2!');
                        return false;
                    }
                    self::refreshById($dbData['id']);
                    $idStr .= $dbData['id'].',';
                }
                return rtrim($idStr, ',');
            }
        }else{
            if($num == 1){
                if(count($data) != count($data,1)){
                    $data = $data[0];
                }
                $re = self::add($data);
                if(!$re){
                    throw  new \Exception('xhGoodsPrice 保存数据失败');
                }
                return $re['id'];
            }else{
                return self::add($data, true);
            }
        }
    }

    public static function goodsMultiPriceAdd($goodTitle, $multiPrice, $multiImg){
        $data = [];
        foreach($goodTitle as $key => $title){
            $data[$key] = ['title' => $title, 'picture' => $multiImg[$key], 'price' => $multiPrice[$key], 'order' => 0];
        }
        //$idStr = self::add($data, true);
        $idStr = self::reuse($data, count($data));
        return $idStr;
    }

    public static function goodsMultiPriceUpdate($ids, $goodTitle, $multiPrice, $multiImg){
        foreach($goodTitle as $key => $title){
            $data = ['title' => $title, 'picture' => $multiImg[$key], 'price' => $multiPrice[$key], 'order' => 0];
            $id = $ids[$key];
            self::updateById($id, $data);
        }
    }

    /**
     * 更新商品的多种价格字段,并返回新ids字符串
     * @param $beforeIdArr
     * @param $post
     * @return bool|string
     */

    public static function updateMultiPrice($beforeIdArr, $post){
        $nowIdArr = $post['priceId'];
        $goodTitle = $post['goodTitle'];
        $multiPrice = $post['multiPrice'];
        $multiImg = $post['multiImg'];

        if(empty($beforeIdArr)){//未设置多价格
            $idStr = self::goodsMultiPriceAdd($goodTitle, $multiPrice, $multiImg);
            return $idStr;
        }else{
            $stillInIdArr = [];
            $notInIdArr = [];
            $newIdStr = '';
            $oldIdStr = '';
            $idStr = '';

            foreach($beforeIdArr as $key => $id){
                if(in_array($id, $nowIdArr)){
                    $stillInIdArr[] = $id;
                }else{
                    $notInIdArr[] = $id;
                }
            }

            //清未加入的Ids
            if(!empty($notInIdArr)){
                $notInIdStr = implode(',', $notInIdArr);
                self::softDeleteIds($notInIdStr);
            }

            $count = count($nowIdArr);
            $newGoodTitle = array_slice($goodTitle, $count);
            $newMultiPrice = array_slice($multiPrice, $count);
            if(!empty($newGoodTitle) && !empty($newMultiPrice)){
                $newIdStr = self::goodsMultiPriceAdd($newGoodTitle, $newMultiPrice, $multiImg);
            }

            if(!empty($stillInIdArr)){
                //更新
                $oldGoodTitle = array_slice($goodTitle, 0, $count);
                $oldMultiPrice = array_slice($multiPrice, 0, $count);
                if(!empty($oldGoodTitle) && !empty($oldMultiPrice)){
                    $oldIdStr = self::goodsMultiPriceUpdate($nowIdArr, $oldGoodTitle, $oldMultiPrice, $multiImg);
                }
                $idStr =  implode(',', $stillInIdArr) . ($newIdStr == '' ? '' : ','.$newIdStr);
            }
            return (string)$idStr;
        }
    }

    /**
     * @param $id
     * @param int $goodsId 商品ID （当xhGoodsSettingService::changePrice($goods, $goodPrice['price'])不好取商品详情$goods时，传入商品ID）
     * @return array|null|\yii\db\ActiveRecord
     */
    public static function getById($id, $goodsId = 0)
    {
        $preKey			= dict::getCacheKey('xhGoodsPrice');
        $cacheKey		= $preKey.$id;
        $cacheData			= Yii::$app->redis->executeCommand('HGETALL', [$cacheKey]);
        if(!empty($cacheData)){
            $arr		= [];
            $i			= 0;
            $x			= 0;
            foreach($cacheData as $key => $val){
                $i++;
                if($i%2 == 0){
                    $arr[$x]['value'] = $val;
                    $x++;
                }else{
                    $arr[$x]['key'] = $val;
                }
            }
            $goodsPriceArr	= [];
            foreach($arr as $key => $val){
                $goodsPriceArr[$val['key']] = $val['value'];
            }
            unset($goodsPriceArr['info_already_get_by_sql']);
            //设置涨价
            if($goodsId > 0){
                $goods = xhGoodsService::getById($goodsId);
                $goodsPriceArr['price'] = xhGoodsSettingService::changePrice($goods, $goodsPriceArr['price']);//统一对商品进行价格等方面设置
            }

            return $goodsPriceArr;
        }
        $goodsPrice	= xhGoodsPrice::find()->where(['id' => $id])->asArray()->one();
        $params		= [$cacheKey];
        $params[]	= 'info_already_get_by_sql';
        $params[]	= 'ok';//redis没有办法设置带空值的键，加此可以数据空时表示取过
        if(!empty($goodsPrice)){
            foreach($goodsPrice as $key => $val){
                $params[] = $key;
                $params[] = $val;
            }
        }
        Yii::$app->redis->executeCommand('HMSET',$params);//将xhGoods信息放入缓存

        //设置涨价
        if($goodsId > 0) {
            $goods = xhGoodsService::getById($goodsId);
            $goodsPrice['price'] = xhGoodsSettingService::changePrice($goods, $goodsPrice['price']);//统一对商品进行价格等方面设置
        }

        return $goodsPrice;
    }

    /**
     * 传入id号（数组 或 字符串（例：1，2，3））
     * @param $ids
     * @return array
     */
    public static function getByIds($ids, $goodsId = 0){
        $data = [];

        if(is_string($ids)){
            $ids = explode(',', $ids);
        }

        if(!is_array($ids)){
            throw new \Exception('传入的参数不是数组');
        }

        foreach ($ids as $id){
            if(empty($id))  continue;
            $data[] = self::getById($id, $goodsId);
        }
        return $data;
    }

    public static function deleteById($id)
    {
        xhGoodsPrice::deleteById($id);
        $cacheKey = dict::getCacheKey('xhGoodsPrice').$id;
        Yii::$app->redis->executeCommand('DEL', [$cacheKey]);
    }

    public static function refreshById($id)
    {
        $cacheKey = dict::getCacheKey('xhGoodsPrice').$id;
        Yii::$app->redis->executeCommand('DEL', [$cacheKey]);
        self::getById($id);
    }

    /**
     * 软删除，并清缓存（表字段：softDel标记为1）
     * @param $id ID
     */
    public static function softDelete($id){
        self::updateById($id, ['softDel' => 1]);
    }

    /**
     * 软删除多个，并清缓存（表字段：softDel标记为1）
     * @param $id ID
     */
    public static function softDeleteIds($ids){
        if(is_string($ids)){
            $ids = explode(',', $ids);
        }

        if(!is_array($ids)){
            throw new \Exception('传入的参数不是数组');
        }
        foreach ($ids as $id){
            self::updateById($id, ['softDel' => 1]);
        }
    }

    /**
     * 通过id清价格缓存
     * @param $id
     */
    /*public static function cleanById($id){
        $cacheKey = dict::getCacheKey('xhGoodsPrice').$id;
        Yii::$app->redis->executeCommand('DEL', [$cacheKey]);
    }*/

    /**
     * 通过多个id 清多个价格缓存
     * @param $ids
     * @throws \Exception
     */
    /*public static function cleanByIds($ids){
        if(is_string($ids)){
            $ids = explode(',', $ids);
        }

        if(!is_array($ids)){
            throw new \Exception('传入的参数不是数组');
        }

        foreach ($ids as $id){
            $cacheKey = dict::getCacheKey('xhGoodsPrice').$id;
            Yii::$app->redis->executeCommand('DEL', [$cacheKey]);
        }
    }*/
}