<?php

namespace api\logic;

use antgoods\goods\models\ars\Goods;
use antgoods\goods\models\ars\GoodsSku;
use common\models\ars\Address;
use common\models\ars\Cart;
use common\models\ars\Order;
use common\models\ars\OrderGoods;
use common\models\ars\TakingSite;
use yii\base\Component;
use Yii;
use yii\db\ActiveRecord;
use yii\web\BadRequestHttpException;
use yii\web\NotFoundHttpException;
use yii\web\ServerErrorHttpException;

/**
 * @author iron
 * @email weiriron@gmail.com
 * Class CartLogic
 * @package api\logic
 */
class OrderLogic extends Component
{
    public $viewAction = 'view';
    /*创建途径类型*/
    const TYPE_ADD_GOODS_PURCHASE = 1;
    const TYPE_ADD_GOODS_CART = 2;
    /*订单操作类型*/
    const TYPE_CONFIRM = 1;
    const TYPE_CANCEL = 2;
    const TYPE_TAKE = 3;
    const TYPE_CHANGE_SHIPPING_TYPE = 4;
    const TYPE_CHANGE_ADDRESS = 5;
    const TYPE_CHANGE_TAKING_SITE = 6;
    /*仓库类型*/
    const TYPE_ADD_STOCK = 1;
    const TYPE_SUB_STOCK = -1;


    /**
     * @param $data
     * @return bool|\Exception|\yii\base\Exception
     */
    public function update($data)
    {
        $type = Yii::$app->request->getQueryParam('type');
        $order = $this->findOrder();
        $tra = Yii::$app->db->beginTransaction();
        try {
            switch ($type) {
                case self::TYPE_CONFIRM :
                    $this->confirm($order, $data);
                    break;
                case self::TYPE_CANCEL:
                    $this->cancel($order);
                    break;
                case self::TYPE_TAKE:
                    $this->take($order);
                    break;
                case self::TYPE_CHANGE_SHIPPING_TYPE:
                    $this->updateShippingType($order, $data);
                    break;
                case self::TYPE_CHANGE_ADDRESS:
                    $this->changeAddress($order, $data);
                    break;
                case self::TYPE_CHANGE_TAKING_SITE:
                    $this->changeTakingSite($order, $data);
                    break;
            }
            if (!$order->save()) {
                throw new ServerErrorHttpException('服务器更新订单失败');
            }
            $tra->commit();
            return true;
        } catch (\yii\base\Exception $e) {
            $tra->rollBack();
            return $e;
        }
    }

    /**
     * @param Order $order
     * @param array $data
     * @throws BadRequestHttpException
     * @throws NotFoundHttpException
     */
    private function changeAddress($order, $data)
    {
        if (!isset($data['address_id'])) {
            throw new BadRequestHttpException(Helper::REQUEST_BAD_PARAMS);
        }
        if ($order->shipping_type !== Order::SHIPPING_TYPE_EXPRESS) {
            throw new BadRequestHttpException('配送方式异常');
        }
        $address = Address::find()
            ->where(['id' => $data['address_id'], 'user_id' => Yii::$app->user->getId()])
            ->one();
        if (!$address) {
            throw new NotFoundHttpException('收货地址未找到');
        }
        $order->consignee = $address->consignee;
        $order->phone = $address->phone;
        $order->city = $address->city;
        $order->area = $address->area;
        $order->province = $address->province;
        $order->address = $address->address;
    }

    /**
     * @param Order $order
     * @param array $data
     * @throws BadRequestHttpException
     * @throws NotFoundHttpException
     */
    private function changeTakingSite($order, $data)
    {
        if (!isset($data['taking_site_id']) || empty($data['taking_site_id'])) {
            throw new BadRequestHttpException(Helper::REQUEST_BAD_PARAMS);
        }
        if ($order->shipping_type !== Order::SHIPPING_TYPE_PICKED_UP) {
            throw new BadRequestHttpException('配送方式异常');
        }
        $site = TakingSite::findOne($data['taking_site_id']);
        if (!$site) {
            throw new NotFoundHttpException('自提点未找到');
        }
        $order->taking_site = $data['taking_site_id'];
    }


    /**
     * @param Order $order
     * @param array $data
     * @throws BadRequestHttpException
     */
    private function updateShippingType($order, $data)
    {
        if (!isset($data['shipping_type'])) {
            throw new BadRequestHttpException(Helper::REQUEST_BAD_PARAMS);
        }
        if ($order->status !== Order::STATUS_UNCONFIRMED) {
            throw new BadRequestHttpException('订单状态异常');
        }
        $order->shipping_type = $data['shipping_type'];
    }

    /**
     * @param Order $order
     * @param array $data
     * @throws BadRequestHttpException
     * @throws NotFoundHttpException
     * @throws ServerErrorHttpException
     */
    private function confirm($order, $data)
    {
        if ($order->status !== Order::STATUS_UNCONFIRMED) {
            throw new BadRequestHttpException('订单状态异常');
        }
        if ($order->shipping_type === Order::SHIPPING_TYPE_PICKED_UP) {
            if (!isset($data['consignee']) || !isset($data['phone'])
                || empty($data['consignee']) || empty($data['phone'])) {
                throw new BadRequestHttpException('（联系人）参数无效');
            }
            $order->consignee = $data['consignee'];
            $order->phone = $data['phone'];
        }
        if (empty($order->consignee)) {
            throw new BadRequestHttpException('需先填写收件人信息');
        }
        if (isset($data['remarks'])) {
            $order->remarks = $data['remarks'];
        }
        $order->status = Order::STATUS_NONPAYMENT;
        $this->updateStock($order, self::TYPE_SUB_STOCK);
    }

    /**
     * @param Order $order
     * @throws BadRequestHttpException
     * @throws NotFoundHttpException
     * @throws ServerErrorHttpException
     */
    private function cancel($order)
    {
        if ($order->status !== Order::STATUS_NONPAYMENT) {
            throw new BadRequestHttpException('订单状态异常');
        }
        $order->status = Order::STATUS_CANCEL;
        $this->updateStock($order, self::TYPE_ADD_STOCK);
    }

    /**
     * @param Order $order
     * @throws BadRequestHttpException
     */
    private function take($order)
    {
        if ($order->status !== Order::STATUS_SHIPMENT_ALL) {
            throw new BadRequestHttpException('订单状态异常');
        }
        $order->status = Order::STATUS_FINISH;
    }

    /**
     * @param $id
     * @param $type
     * @throws BadRequestHttpException
     * @throws NotFoundHttpException
     * @throws ServerErrorHttpException
     */
    private function updateStock($id, $type)
    {
        $allOrderGoods = $this->findOrderGoods($id);
        foreach ($allOrderGoods as $orderGoods) {
            /*检查库存*/
            Helper::checkStock($orderGoods->goods_id, $orderGoods->goods_count, $orderGoods->sku_id);
            if ($orderGoods->sku_id) {
                $goods = GoodsSku::findOne($orderGoods->sku_id);
            } else {
                $goods = Goods::findOne($orderGoods->goods_id);
            }
            if ($type) {
                $count = $orderGoods->goods_count;
            } else {
                $count = -$orderGoods->goods_count;
            }
            if (!$goods->updateCounters(['stock' => $count])) {
                throw new ServerErrorHttpException('更新库存失败');
            }
        }
    }

    /**
     * @param $originId
     * @param $count
     * @param $skuId
     * @return bool
     * @throws BadRequestHttpException
     * @throws NotFoundHttpException
     * 创建订单并添加商品
     */
    public function create($originId, $count, $skuId)
    {
        $type = Yii::$app->request->getQueryParam('type');
        if (empty($type) || ($type == self::TYPE_ADD_GOODS_CART && empty($originId)) ||
            ($type == self::TYPE_ADD_GOODS_PURCHASE && (empty($count) || empty($originId)))) {
            throw new BadRequestHttpException(Helper::REQUEST_BAD_PARAMS);
        }
        if ($type == self::TYPE_ADD_GOODS_PURCHASE) {
            $goodsId = $originId;
        } else {
            $cart = Cart::findOne($originId);
            if (!$cart) {
                throw new NotFoundHttpException('购物车未找到');
            }
            $goodsId = $cart->goods_id;
            $skuId = $cart->sku_id;
            $count = $cart->goods_count;
        }
        /*检查库存*/
        Helper::checkStock($goodsId, $count, $skuId);
        $tra = Yii::$app->db->beginTransaction();
        try {
            $order = new Order();
//            $order->user_id = Yii::$app->user->getId();
            $order->user_id = 1;
            $order->type = Order::TYPE_SHOPPING;
            if (!$order->save()) {
                throw new ServerErrorHttpException('服务器创建订单失败');
            }
            $this->addGoods($order->id, $goodsId, $skuId, $count);/*创建订单商品*/
            $this->saveGoodsInfo($order);/*保存订单商品信息*/
            $tra->commit();
            Helper::createdResponse($order, $this->viewAction);
            return $order;
        } catch (\Exception $e) {
            $tra->rollBack();
            throw $e;
        }
    }

    /**
     * @param Order $order
     * @throws ServerErrorHttpException
     */
    private function saveGoodsInfo($order)
    {
        $orderGoods = $this->findOrderGoods($order->id);
        foreach ($orderGoods as $goods) {
            $order->goods_amount += $goods->price;
            $order->goods_count += $goods->goods_count;
        }
        if (!$order->save()) {
            throw new ServerErrorHttpException('服务器创建订单失败');
        }
    }


    /**
     * @param int $id
     * @param int $goodsId
     * @param int $skuId
     * @param int $count
     * @throws NotFoundHttpException
     * @throws ServerErrorHttpException
     * 创建订单商品
     */
    private function addGoods($id, $goodsId, $skuId, $count)
    {
        $goods = Goods::findOne($goodsId);
        if (!$goods) {
            throw new NotFoundHttpException('商品未找到');
        }
        $orderGoods = new OrderGoods();
        $orderGoods->order_id = $id;
        $orderGoods->goods_id = $goodsId;
        $orderGoods->sku_id = $skuId ?: 0;
        $orderGoods->sku_value = Helper::skuValue($skuId);
        $orderGoods->goods_count = $count;
        $orderGoods->goods_img = $goods->image;
        $orderGoods->goods_name = $goods->name;
        $orderGoods->price = Helper::countPrice($goodsId, $skuId);
        if (!$orderGoods->save()) {
            throw new ServerErrorHttpException('服务器添加订单商品失败');
        }
    }

    /**
     * @return array|Order|null
     * 获取订单
     */
    private function findOrder()
    {
        $id = Yii::$app->request->getQueryParam('id');
        return Order::find()
            ->where(['id' => $id])
            ->andWhere(['user_id' => Yii::$app->user->getId()])
            ->one();
    }

    /**
     * @param $id
     * @return array|ActiveRecord[]|OrderGoods[]
     */
    private function findOrderGoods($id)
    {
        return OrderGoods::find()
            ->where(['order_id' => $id])
            ->all();
    }


}