<?php


namespace backend\modules\shop\logic\delivery;

use backend\modules\shop\models\ars\Delivery;
use backend\modules\shop\models\ars\DeliveryGoods;
use backend\modules\shop\models\ars\Order;
use backend\modules\shop\models\ars\OrderGoods;
use Yii;
use yii\db\Exception;
use yii\helpers\ArrayHelper;
use yii\helpers\Json;
use yii\web\NotFoundHttpException;

class DeliveryManager
{
    const LOGISTICS_URL = 'http://route.showapi.com/64-19';

    /**
     * @param Order $order
     * @param Delivery $delivery
     * @return array
     * 订单发货
     */
    public static function orderDelivery($order, $delivery)
    {
        $transaction = Yii::$app->db->beginTransaction();
        try {
            $data = Yii::$app->request->post();
            if (empty($data['deliveryGoods'])) {
                throw new Exception('缺少发货商品信息');
            }
            $delivery->load($data);
            $delivery->order_id = $order->id;
            if (!$delivery->save()) {
                throw new Exception('保存物流信息失败');
            }

            /*发货商品数据*/
            $orderStatus = self::saveDeliveryGoods($data['deliveryGoods'], $delivery->id);
            $order->status = $orderStatus;
            if (!$order->save()) {
                throw new Exception('order shipping_status update false');
            }

            if ($orderStatus == Order::STATUS_SHIPMENT_PORTION || Delivery::find()->where(['!=', 'id', $delivery->id])->andWhere(['order_id' => $delivery->order_id])->one()) {
                $delivery->type = Delivery::TYPE_SHIPMENT_PORTION;
            } else {
                $delivery->type = Delivery::TYPE_SHIPMENT_ALL;
            }
            if (!$delivery->save()) {
                throw new Exception('保存物流信息失败');
            }

            $transaction->commit();
            return ['status' => true];
        } catch (Exception $e) {
            $transaction->rollBack();
            return ['status' => false, 'info' => $e->getMessage()];
        }
    }

    /**
     * @param $deliveryGoods
     * @param $delivery_id
     * @return int
     * @throws Exception
     * 保存发货商品信息
     */
    private static function saveDeliveryGoods($deliveryGoods, $delivery_id)
    {
        $status = Order::STATUS_SHIPMENT_ALL;
        foreach ($deliveryGoods as $id => $goodsCount) {
            if ($goodsCount < 0) {
                throw new Exception('操作异常，发货数量不能小于0');
            } elseif ($goodsCount == 0) {
                continue;
            }
            $orderGoods = OrderGoods::findOne($id);

            /*如果是发货数量不是全部，订单状态为部分发货*/
            $deliveryGoodsCount = DeliveryGoods::find()->where(['order_goods_id' => $id])->sum('goods_count');
            if (($deliveryGoodsCount + $goodsCount)  < $orderGoods->goods_count) {     //如果已发货数量未达到order_goods里的数量
                $status = Order::STATUS_SHIPMENT_PORTION;
            } elseif (($deliveryGoodsCount + $goodsCount) > $orderGoods->goods_count) {
                throw new Exception('操作异常，现发货数量超过之前缺少的发货数量');
            }

            $model = new DeliveryGoods();
            $model->delivery_id = $delivery_id;
            $model->order_goods_id = $orderGoods->id;
            $model->goods_id = $orderGoods->goods_id;
            $model->goods_name = $orderGoods->goods_name;
            $model->goods_count = $goodsCount;
            if (!$model->save()) {
                throw new Exception('delivery_goods save false');
            }
        }
        return $status;
    }

    /**
     * @param $order_id
     * @return array
     * 查询订单发货商品信息
     */
    public static function deliveryGoodsInfo($order_id)
    {
        $delivery = Delivery::findAll(['order_id' => $order_id]);
        /*如果该订单是首次发货*/
        if ($delivery) {
            /*获取订单已发的商品和未发的商品*/
            return self::getDeliveryGoodsInfo($delivery);
        } else {
            $unShippedGoods = OrderGoods::find()->where(['order_id' => $order_id])->all();
            return ['unShipped' => $unShippedGoods];
        }
    }

    /**
     * @param $delivery
     * @return array
     * 获取订单已发的商品和未发的商品
     */
    public static function getDeliveryGoodsInfo($delivery)
    {
        $data = [];
        $deliveryIds = [];
        foreach ($delivery as $k => $value) {
            $deliveryIds[] = $value->id;
            $orderGoodsIds = DeliveryGoods::find()
                ->select('order_goods_id')
                ->where(['delivery_id' => $value->id])
                ->andWhere(['>', 'goods_count', 0])
                ->column();
            $value->deliveryGoods = OrderGoods::findAll($orderGoodsIds);
        }
        $data['shipped'] = $delivery;

        $deliveryGoodsData = [];
        $deliveryGoods = DeliveryGoods::find()
            ->select(['order_goods_id', 'goods_count'])
            ->where(['delivery_id' => $deliveryIds])
            ->andWhere(['>', 'goods_count', 0])
            ->all();
        foreach ($deliveryGoods as $k => $value) {
            $orderGoods = $value->order_goods_id;
            if (isset($deliveryGoodsData[$orderGoods])) {
                $deliveryGoodsData[$orderGoods] += $value->goods_count;
            } else {
                $deliveryGoodsData[$orderGoods] = $value->goods_count;
            }
        }
        foreach ($deliveryGoodsData as $k => $value) {      //键名为order_goods_id,键值为对应的已发货数量
            $orderGoods = OrderGoods::findOne($k);      //通过orderGoods_id找到订单商品
            if ($value < $orderGoods->goods_count) { //如果已发货数量未达到order_goods里的数量
                $orderGoods->lack_number = $orderGoods->goods_count - $value;
                $data['unShipped'][] = $orderGoods;
            }
        }
        return $data;
    }


    /**
     * @param $orderId
     * @return array|mixed
     * @throws NotFoundHttpException
     * 查询物流接口
     */
    public static function queryLogistics($orderId)
    {
        $delivery = Delivery::findOne(['order_id' => $orderId]);
        if (!$delivery) {
            throw new NotFoundHttpException('发货信息未找到');
        }

        $cache = Yii::$app->cache;
        if ($cache->exists($delivery->shipping_id)) {
            return $cache->get($delivery->shipping_id);
        }

        $logisticsParams = self::createLogisticsParam($delivery);  //创建参数(包括签名的处理)
        $url = self::LOGISTICS_URL . '?' . $logisticsParams;
        $result = Json::decode(file_get_contents($url), false);
        if (isset($result->showapi_res_body)) {
            $cache->set($delivery->shipping_id, $result->showapi_res_body, 7200); //设置缓存2个小时
            return $result->showapi_res_body;
        } else {
            return [];
        }
    }

    /**
     * @param Delivery $delivery
     * @return string
     * 查询物流 创建参数(包括签名的处理)
     */
    private static function createLogisticsParam($delivery)
    {
        $params = [
            'showapi_appid' => Yii::$app->params['logistics_config']['logistics_appid'],
            'com' => $delivery->shipping_name , //物流单位
            'nu' => $delivery->invoice_sn, //运单号
            //添加其他参数
        ];

        $paraStr = "";
        $signStr = "";
        ksort($params);
        foreach ($params as $key => $val) {
            if ($key != '' && $val != '') {
                $signStr .= $key.$val;
                $paraStr .= $key . '=' . urlencode($val) . '&';
            }
        }
        $signStr .= Yii::$app->params['logistics_config']['logistics_secret'];

        //排好序的参数加上secret,进行md5，将md5后的值作为参数,便于服务器的效验
        $sign = strtolower(md5($signStr));
        $paraStr .= 'showapi_sign=' . $sign;
        return $paraStr;
    }


}