<?php
/**
 * 用途：商城顾客售后申请接口
 * 谁用：mallApp 订单详情「申请售后」页
 * 解决：顾客提交/查看/撤销售后申请；真正退款由商家在 hdApp 审核通过后执行
 */

namespace mall\controllers;

use bizHd\distribution\classes\DistributionOrderClass;
use bizHd\order\classes\OrderClass as HdOrderClass;
use bizHd\refund\classes\MallRefundApplyClass;
use bizHd\refund\services\MallRefundApplyService;
use bizMall\order\classes\OrderClass;
use common\components\util;
use Yii;

class RefundController extends BaseController
{
    /**
     * 申请页初始化数据：订单商品 + 可退金额 + 已有申请进度
     */
    public function actionGetRefundData()
    {
        $id = (int)Yii::$app->request->get('id', 0);
        $order = OrderClass::getOrderById($id);
        if (empty($order)) {
            util::fail('没有找到订单');
        }
        $this->assertOrderOwner($order);

        $orderPrice = (float)($order['orderPrice'] ?? 0);
        $tkPrice = (float)($order['tkPrice'] ?? 0);
        $couldRefundPrice = round(max(0, $orderPrice - $tkPrice), 2);

        $apply = MallRefundApplyClass::getLatestByOrderId($id);
        if (!empty($apply) && is_array($apply)) {
            $apply['statusText'] = MallRefundApplyClass::statusText($apply['status'] ?? 0);
            if (!empty($apply['product']) && is_string($apply['product'])) {
                $apply['productList'] = json_decode($apply['product'], true) ?: [];
            }
        }

        // 分销售后截止提示（仅提示，真正拦截在提交时）
        $refundDeadlineTip = '';
        $distOrder = DistributionOrderClass::getByCondition(['orderId' => $id]);
        if (!empty($distOrder)) {
            $finishTime = $distOrder['finishTime'] ?? '';
            if (!empty($finishTime) && $finishTime !== '0000-00-00 00:00:00') {
                $rule = \bizHd\distribution\classes\DistributionRuleClass::getRule(
                    (int)($order['shopId'] ?? 0),
                    (int)($order['mainId'] ?? $this->mainId)
                );
                $settleDays = max(0, (int)($rule['settleDays'] ?? 0));
                $deadline = date('Y-m-d H:i', strtotime($finishTime) + $settleDays * 86400);
                $refundDeadlineTip = "分销订单完成后{$settleDays}天内可申请售后，截止：{$deadline}";
            }
        }

        util::success([
            'orderInfo' => $order,
            'goodsInfoList' => $order['goodsInfoList'] ?? [],
            'itemInfoList' => $order['itemList'] ?? [],
            'couldRefundPrice' => $couldRefundPrice,
            'apply' => $apply,
            'refundDeadlineTip' => $refundDeadlineTip,
            'canApply' => $this->canApplyRefund($order, $apply),
        ]);
    }

    /**
     * 顾客提交售后申请（仅落待审核记录）
     */
    public function actionCreateOrder()
    {
        $post = Yii::$app->request->post();
        $id = (int)($post['id'] ?? 0);

        util::checkRepeatCommit('mall_refund_' . $id, 5);

        $order = HdOrderClass::getById($id, true);
        if (empty($order)) {
            util::fail('没有找到订单');
        }
        $this->assertOrderOwner($order);

        if ((int)$order->payStatus !== 1) {
            util::fail('订单未付款，无法申请售后');
        }
        if ((int)$order->status === HdOrderClass::ORDER_STATUS_UN_PAY) {
            util::fail('待付款订单无法申请售后');
        }
        if ((int)$order->status === HdOrderClass::ORDER_STATUS_CANCEL) {
            util::fail('已取消订单无法申请售后');
        }
        // 前端 ORDER_STATUS 含已退款=6，全额退完后可能落此状态
        if ((int)$order->status === 6) {
            util::fail('已退款订单无法申请售后');
        }
        if ((int)($order->forward ?? 0) === 1) {
            util::fail('售后收入单无法申请售后');
        }
        if (MallRefundApplyClass::hasPendingByOrderId($id)) {
            util::fail('已有待审核的售后申请，请勿重复提交');
        }

        // 分销关联订单：完成后超过 settleDays 不可再申请
        DistributionOrderClass::assertRefundNotExpired(
            $id,
            (int)$order->shopId,
            (int)($order->mainId ?? $this->mainId)
        );

        $connection = Yii::$app->db;
        $transaction = $connection->beginTransaction();
        try {
            $extra = [
                'userId' => (int)$this->userId,
                'hdId' => (int)$this->hdId,
                'customId' => (int)$this->customId,
                'shopId' => (int)$order->shopId,
                'mainId' => (int)($order->mainId ?? $this->mainId),
            ];
            $apply = MallRefundApplyService::createApply($post, $order, $extra);
            $transaction->commit();
            util::success([
                'id' => (int)$apply->id,
                'status' => (int)$apply->status,
                'statusText' => MallRefundApplyClass::statusText($apply->status),
            ], '提交成功，请等待商家审核');
        } catch (\Exception $e) {
            $transaction->rollBack();
            Yii::info('商城售后申请失败：' . $e->getMessage());
            // util::fail 已输出时不会走到这里；其它异常统一提示
            if (strpos($e->getMessage(), '操作失败') === false) {
                util::fail($e->getMessage() ?: '申请失败');
            }
            util::fail('申请失败');
        }
    }

    /**
     * 顾客售后申请列表
     */
    public function actionList()
    {
        $where = ['customId' => (int)$this->customId];
        $status = Yii::$app->request->get('status', '');
        if ($status !== '' && $status !== null) {
            $where['status'] = (int)$status;
        }
        $list = MallRefundApplyClass::getCustomApplyList($where);
        if (!empty($list['list'])) {
            foreach ($list['list'] as &$row) {
                $row['statusText'] = MallRefundApplyClass::statusText($row['status'] ?? 0);
            }
            unset($row);
        }
        util::success($list);
    }

    /**
     * 顾客售后申请详情
     */
    public function actionDetail()
    {
        $id = (int)Yii::$app->request->get('id', 0);
        $apply = MallRefundApplyClass::getById($id, true);
        MallRefundApplyClass::validByCustom($apply, (int)$this->customId);
        $data = $apply->toArray();
        $data['statusText'] = MallRefundApplyClass::statusText($apply->status);
        if (!empty($data['product'])) {
            $data['productList'] = json_decode($data['product'], true) ?: [];
        }
        util::success($data);
    }

    /**
     * 顾客撤销待审核申请
     */
    public function actionCancelOrder()
    {
        $post = Yii::$app->request->post();
        $id = (int)($post['id'] ?? 0);
        $apply = MallRefundApplyClass::getById($id, true);
        MallRefundApplyClass::validByCustom($apply, (int)$this->customId);

        $connection = Yii::$app->db;
        $transaction = $connection->beginTransaction();
        try {
            MallRefundApplyService::cancel($apply);
            $transaction->commit();
            util::complete('已撤销申请');
        } catch (\Exception $e) {
            $transaction->rollBack();
            Yii::info('撤销售后申请失败：' . $e->getMessage());
            util::fail($e->getMessage() ?: '撤销失败');
        }
    }

    /**
     * 校验订单归属当前登录顾客
     * @param array|object $order
     */
    protected function assertOrderOwner($order)
    {
        $customId = is_object($order) ? (int)($order->customId ?? 0) : (int)($order['customId'] ?? 0);
        $userId = is_object($order) ? (int)($order->userId ?? 0) : (int)($order['userId'] ?? 0);
        if ($customId > 0 && (int)$this->customId > 0 && $customId === (int)$this->customId) {
            return;
        }
        // 兼容早期仅绑 userId 的订单
        if ($userId > 0 && $userId === (int)$this->userId) {
            return;
        }
        util::fail('不是你的订单，无法操作');
    }

    /**
     * 是否允许新开售后申请
     * @param array $order
     * @param array|null $apply
     * @return int 1可申请 0不可
     */
    protected function canApplyRefund($order, $apply)
    {
        if ((int)($order['payStatus'] ?? 0) !== 1) {
            return 0;
        }
        $status = (int)($order['status'] ?? 0);
        if (in_array($status, [HdOrderClass::ORDER_STATUS_UN_PAY, HdOrderClass::ORDER_STATUS_CANCEL, 6], true)) {
            return 0;
        }
        if ((int)($order['forward'] ?? 0) === 1) {
            return 0;
        }
        if (!empty($apply) && (int)($apply['status'] ?? -1) === MallRefundApplyClass::STATUS_PENDING) {
            return 0;
        }
        $could = bcsub((string)($order['orderPrice'] ?? 0), (string)($order['tkPrice'] ?? 0), 2);
        if (bccomp($could, '0', 2) <= 0) {
            return 0;
        }
        return 1;
    }
}