<?php
declare (strict_types=1);

namespace app\api\controller;

use app\BaseController;
use app\model\api\StoreOrder;
use app\model\api\StoreOrderCartInfo;
use app\model\api\StoreCart;
use app\model\api\PayTrade;
use app\model\api\UserAddress;
use app\model\api\StoreProductAttrValue;
use app\Request;
use library\services\UtilService;
use think\facade\Db;
use think\db\exception\DbException;

class Shop extends BaseController
{
    /**
     * 创建订单
     * @param Request $request
     */
    public function createOrder(Request $request)
    {
        $post = UtilService::getMore([
            ['cart_ids', '', 'empty', '参数错误'],
            ['address_id', 0],
        ], $request);

        // 获取购物车商品
        $cartIds = explode(',', $post['cart_ids']);
        $cartList = Db::name('store_cart')
            ->whereIn('id', $cartIds)
            ->where('uid', $request->user['uid'])
            ->select()
            ->toArray();

        if (empty($cartList)) {
            return app('json')->fail('购物车商品不存在');
        }

        // 获取收货地址
        $address = null;
        if ($post['address_id'] > 0) {
            $address = Db::name('user_address')->where('id', $post['address_id'])->find();
        }

        if (!$address) {
            $address = (new UserAddress())->getDefaultAddress($request->user['uid']);
        }

        if (!$address) {
            return app('json')->fail('请先添加收货地址');
        }

        // 计算订单金额
        $totalMoney = 0;
        $payMoney = 0;
        $cartInfo = [];

        foreach ($cartList as $cart) {
            $product = Db::name('store_product')->where('id', $cart['product_id'])->find();
            if (!$product) {
                continue;
            }

            $price = $product['price'];
            $skuPrice = null;

            // 如果有SKU，获取SKU价格
            if (!empty($cart['product_attr_unique'])) {
                $sku = (new StoreProductAttrValue())->getSkuBySuk($cart['product_id'], $cart['product_attr_unique']);
                if ($sku) {
                    $price = $sku['price'];
                }
            }

            $productMoney = $price * $cart['cart_num'];
            $totalMoney += $productMoney;

            $cartInfo[] = [
                'product_id' => $cart['product_id'],
                'cart_num' => $cart['cart_num'],
                'product_attr_unique' => $cart['product_attr_unique'],
                'title' => $product['title'],
                'image' => $product['image'],
                'price' => $price,
                'total_price' => $productMoney,
            ];
        }

        // 运费（暂时设置为0，后续可以根据运费模板计算）
        $postage = 0;
        $payMoney = $totalMoney + $postage;

        // 生成订单号
        $orderId = makeOrderId($request->user['uid'], 'SO');

        // 开启事务
        Db::startTrans();
        try {
            // 创建订单
            $orderData = [
                'order_id' => $orderId,
                'uid' => $request->user['uid'],
                'real_name' => $address['real_name'],
                'phone' => $address['phone'],
                'province' => $address['province'],
                'city' => $address['city'],
                'district' => $address['district'],
                'detail' => $address['detail'],
                'total_price' => $totalMoney,
                'total_num' => count($cartInfo),
                'total_postage' => $postage,
                'pay_price' => $payMoney,
                'pay_postage' => $postage,
                'paid' => 0,
                'status' => 0,
                'time' => time(),
            ];

            $orderIdDb = Db::name('store_order')->insertGetId($orderData);

            // 创建订单商品
            foreach ($cartInfo as &$item) {
                $item['oid'] = $orderIdDb;
                $item['time'] = time();
            }
            Db::name('store_order_cart_info')->insertAll($cartInfo);

            // 创建支付流水
            $payTrade = new PayTrade();
            $payNo = $payTrade->credentials(
                'score',
                $request->user['uid'],
                'shop_order',
                $payMoney,
                '商城订单支付',
                $orderId,
                ['order_id' => $orderId],
                0
            );

            // 更新支付流水的o_id
            if ($payNo) {
                Db::name('pay_trade')->where('pay_no', $payNo)->update(['o_id' => $orderIdDb]);
            }

            // 清除购物车
            Db::name('store_cart')->whereIn('id', $cartIds)->delete();

            Db::commit();

            return app('json')->success([
                'order_id' => $orderId,
                'pay_money' => $payMoney,
                'pay_no' => $payNo
            ], '订单创建成功');

        } catch (DbException $e) {
            Db::rollback();
            return app('json')->fail('订单创建失败');
        }
    }

    /**
     * 订单列表
     * @param Request $request
     */
    public function orderList(Request $request)
    {
        $post = UtilService::getMore([
            ['page', 1],
            ['pageSize', 20],
            ['status', ''],
        ], $request);

        $where = [
            ['uid', '=', $request->user['uid']]
        ];

        if ($post['status'] !== '' && in_array((string)$post['status'], ["0", "1", "2", "3", "-1"])) {
            $where[] = ['status', '=', (int)$post['status']];
        }

        $result = (new StoreOrder())->getList($where, $post['page'], $post['pageSize']);

        return app('json')->success($result);
    }

    /**
     * 订单详情
     * @param Request $request
     */
    public function orderDetail(Request $request)
    {
        $post = UtilService::getMore([
            ['order_id', '', 'empty', '参数错误'],
        ], $request);

        $order = Db::name('store_order')
            ->where('order_id', $post['order_id'])
            ->where('uid', $request->user['uid'])
            ->find();

        if (!$order) {
            return app('json')->fail('订单不存在');
        }

        // 获取订单商品
        $cartInfo = Db::name('store_order_cart_info')
            ->where('oid', $order['id'])
            ->select()
            ->toArray();

        $order['cart_info'] = $cartInfo;

        return app('json')->success($order);
    }

    /**
     * 取消订单
     * @param Request $request
     */
    public function cancelOrder(Request $request)
    {
        $post = UtilService::getMore([
            ['order_id', '', 'empty', '参数错误'],
        ], $request);

        $order = Db::name('store_order')
            ->where('order_id', $post['order_id'])
            ->where('uid', $request->user['uid'])
            ->where('status', 0)
            ->find();

        if (!$order) {
            return app('json')->fail('订单不存在或已取消');
        }

        Db::name('store_order')->where('id', $order['id'])->update(['status' => -1]);

        return app('json')->success('订单已取消');
    }

    /**
     * 确认收货
     * @param Request $request
     */
    public function confirmOrder(Request $request)
    {
        $post = UtilService::getMore([
            ['order_id', '', 'empty', '参数错误'],
        ], $request);

        $order = Db::name('store_order')
            ->where('order_id', $post['order_id'])
            ->where('uid', $request->user['uid'])
            ->where('status', 2)
            ->find();

        if (!$order) {
            return app('json')->fail('订单不存在或状态错误');
        }

        Db::name('store_order')->where('id', $order['id'])->update([
            'status' => 3,
            'confirm_time' => time()
        ]);

        return app('json')->success('确认收货成功');
    }
}