package com.talentcard.server.business.payment;
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import com.talentcard.server.business.BusinessIdGenerator;
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import com.talentcard.server.business.DatabaseRows;
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import com.talentcard.server.business.MoneyUtils;
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import com.talentcard.server.business.order.OrderFundBoundaryService;
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import com.talentcard.server.business.order.OrderRefundRequest;
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import com.talentcard.server.business.payment.huifu.HuifuPaymentGatewayException;
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import com.talentcard.server.business.payment.huifu.HuifuPaymentProperties;
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import com.talentcard.server.business.payment.huifu.HuifuRefundCommand;
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import com.talentcard.server.business.payment.huifu.HuifuRefundGateway;
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import com.talentcard.server.common.BusinessException;
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import com.talentcard.server.common.ErrorCode;
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import org.springframework.jdbc.core.JdbcTemplate;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.support.TransactionTemplate;
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import java.math.BigDecimal;
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import java.time.LocalDate;
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import java.time.LocalDateTime;
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import java.time.format.DateTimeFormatter;
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import java.util.LinkedHashMap;
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import java.util.List;
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import java.util.Map;
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@Service
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public class HuifuRefundService {
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private static final String PROVIDER = "HUIFU";
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private static final DateTimeFormatter REQUEST_DATE = DateTimeFormatter.ofPattern("yyyyMMdd");
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private final JdbcTemplate jdbc;
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private final TransactionTemplate transactions;
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private final HuifuRefundGateway gateway;
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private final HuifuPaymentProperties huifuPaymentProperties;
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private final OrderFundBoundaryService orderFundBoundary;
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public HuifuRefundService(JdbcTemplate jdbc, TransactionTemplate transactions, HuifuRefundGateway gateway, HuifuPaymentProperties huifuPaymentProperties, OrderFundBoundaryService orderFundBoundary) {
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this.jdbc = jdbc;
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this.transactions = transactions;
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this.gateway = gateway;
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this.huifuPaymentProperties = huifuPaymentProperties;
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this.orderFundBoundary = orderFundBoundary;
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}
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public Map<String, Object> request(String orderNo, OrderRefundRequest request) {
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PreparedRefund prepared = transactions.execute(status -> prepare(orderNo, request));
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if (prepared == null) throw new BusinessException(ErrorCode.INTERNAL_ERROR, "Refund initialization failed");
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Map<String, Object> response;
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try {
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response = gateway.createRefund(new HuifuRefundCommand(
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prepared.refundNo(), prepared.huifuId(), prepared.paymentNo(), prepared.originalProviderNo(),
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prepared.originalRequestDate(), prepared.refundAmount()));
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} catch (HuifuPaymentGatewayException exception) {
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if (!exception.isOutcomeUnknown()) {
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markFailed(prepared.refundNo(), prepared.orderId(), "GATEWAY_REJECTED", exception.getMessage());
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throw new BusinessException(ErrorCode.CONFLICT, "Refund request was rejected");
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}
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return detail(prepared.refundNo());
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} catch (BusinessException exception) {
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markFailed(prepared.refundNo(), prepared.orderId(), "LOCAL_ERROR", exception.getMessage());
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throw exception;
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} catch (RuntimeException exception) {
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return detail(prepared.refundNo());
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}
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ProviderResult result = ProviderResult.from(response);
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if (result.success()) {
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markSucceeded(prepared, result);
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} else if (result.failed()) {
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markFailed(prepared.refundNo(), prepared.orderId(), result.code(), result.message());
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throw new BusinessException(ErrorCode.CONFLICT, "Refund request was rejected");
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} else {
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updateProviderResult(prepared.refundNo(), result);
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}
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return detail(prepared.refundNo());
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}
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public Map<String, Object> query(String refundNo) {
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Map<String, Object> refund = detail(refundNo);
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if (number(refund.get("refundStatus")) != 1) return refund;
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HuifuRefundCommand command = new HuifuRefundCommand(
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refundNo,
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refundHuifuId(refund.get("providerHuifuId")),
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text(refund.get("providerOriginalReqSeqId")),
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text(refund.get("providerOriginalNo")),
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text(refund.get("providerOriginalReqDate")),
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number(refund.get("refundAmount")));
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try {
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ProviderResult result = ProviderResult.from(gateway.queryRefund(command, text(refund.get("providerRefundNo"))));
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if (result.success()) markSucceeded(new PreparedRefund(refundNo, number(refund.get("orderId")), number(refund.get("refundAmount"))), result);
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else if (result.failed()) markFailed(refundNo, number(refund.get("orderId")), result.code(), result.message());
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else updateProviderResult(refundNo, result);
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} catch (HuifuPaymentGatewayException ignored) {
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// Keep the refund pending when the provider outcome is unknown.
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}
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return detail(refundNo);
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}
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public Map<String, Object> detail(String refundNo) {
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List<Map<String, Object>> rows = rows("""
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select r.id, r.order_id, r.refund_no, r.order_no, r.order_type, r.paid_amount, r.refund_amount,
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r.refundable_amount, r.refund_status, r.provider, r.provider_refund_no, r.provider_huifu_id,
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r.provider_original_no, r.provider_original_req_seq_id, r.provider_original_req_date,
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r.provider_response_code, r.provider_response_message, r.reason, r.operator_name, r.refund_time
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from order_refund r
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where r.deleted = 0 and r.refund_no = ?
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""", refundNo);
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if (rows.isEmpty()) throw new BusinessException(ErrorCode.NOT_FOUND, "Refund record not found");
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return rows.get(0);
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}
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private PreparedRefund prepare(String orderNo, OrderRefundRequest request) {
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List<Map<String, Object>> orders = rows("""
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select o.id, o.order_no, o.talent_id, o.card_id, o.benefit_id, o.merchant_id, o.order_type,
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o.pay_amount, o.order_status, o.verify_status,
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p.payment_no, p.provider_transaction_no, p.created_at as payment_created_at,
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coalesce(p.provider_huifu_id, o.collect_huifu_id) as huifu_id
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from benefit_order o
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left join payment_transaction p on p.order_id = o.id and p.provider = ? and p.status = 'SUCCEEDED'
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where o.deleted = 0 and o.order_no = ?
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order by p.id desc
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limit 1 for update
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""", PROVIDER, orderNo);
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if (orders.isEmpty()) throw new BusinessException(ErrorCode.NOT_FOUND, "Order not found");
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Map<String, Object> order = orders.get(0);
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// 支付、核销、退款、提现锁定都按订单串行化：锁住订单行之后才判断能不能退款。
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OrderFundBoundaryService.LockedOrder locked = orderFundBoundary.lock(number(order.get("id")));
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locked.requireRefundable();
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if (locked.verifyStatus() == 1 && !"STORE_CONSUME".equals(text(order.get("orderType")))) {
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throw new BusinessException(ErrorCode.CONFLICT, "Verified orders cannot be refunded");
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}
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Integer active = jdbc.queryForObject("select count(*) from order_refund where deleted = 0 and order_id = ? and refund_status in (1,2)", Integer.class, order.get("id"));
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if (active != null && active > 0) throw new BusinessException(ErrorCode.CONFLICT, "Refund has already been submitted for this order");
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long paidAmount = number(order.get("payAmount"));
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long successfulRefund = refundedAmount(number(order.get("id")));
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long refundableAmount = Math.max(paidAmount - successfulRefund, 0);
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long requestedAmount = MoneyUtils.yuanToCent(request.refundAmount());
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long refundAmount = requestedAmount > 0 ? requestedAmount : refundableAmount;
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if (refundAmount <= 0 || refundAmount > refundableAmount) throw new BusinessException(ErrorCode.BAD_REQUEST, "Invalid refund amount");
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String paymentNo = text(order.get("paymentNo"));
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String providerNo = text(order.get("providerTransactionNo"));
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if (paymentNo.isBlank() && providerNo.isBlank()) throw new BusinessException(ErrorCode.CONFLICT, "Payment transaction is not ready for refund");
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String huifuId = refundHuifuId(order.get("huifuId"));
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String refundNo = BusinessIdGenerator.next("R");
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String requestDate = requestDate(order.get("paymentCreatedAt"));
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jdbc.update("""
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insert into order_refund(refund_no, order_id, order_no, talent_id, card_id, benefit_id, merchant_id,
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order_type, paid_amount, refund_amount, refundable_amount, refund_status,
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provider, provider_huifu_id, provider_original_no, provider_original_req_seq_id, provider_original_req_date,
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reason, operator_name)
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values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, 1, ?, ?, ?, ?, ?, ?, ?)
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""",
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refundNo, order.get("id"), order.get("orderNo"), order.get("talentId"), order.get("cardId"),
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order.get("benefitId"), order.get("merchantId"), order.get("orderType"), paidAmount, refundAmount,
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refundableAmount - refundAmount, PROVIDER, huifuId, providerNo, paymentNo, requestDate, request.reason(), request.operatorName());
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// 退款受理成功即刻生效：在结果确定前订单不再可核销，也不参与提现汇总。
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orderFundBoundary.markRefundInProgress(number(order.get("id")));
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return new PreparedRefund(refundNo, number(order.get("id")), huifuId, paymentNo, providerNo, requestDate, refundAmount);
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}
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private void markSucceeded(PreparedRefund prepared, ProviderResult result) {
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transactions.executeWithoutResult(status -> {
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jdbc.update("""
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update order_refund
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set refund_status = 2, provider_refund_no = ?, provider_response_code = ?, provider_response_message = ?, refund_time = now()
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where refund_no = ? and refund_status = 1
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""", result.providerNo(), result.code(), result.message(), prepared.refundNo());
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jdbc.update("""
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update benefit_order o
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set o.order_status = 2
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where o.id = ? and o.order_status = 1
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and o.pay_amount <= (select coalesce(sum(r.refund_amount), 0) from order_refund r where r.order_id = o.id and r.refund_status = 2 and r.deleted = 0)
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""", prepared.orderId());
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orderFundBoundary.markRefunded(prepared.orderId());
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});
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}
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/** 退款失败没有资金变动，订单回到未退款状态（可再次核销或再次退款）。 */
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private void markFailed(String refundNo, long orderId, String code, String message) {
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transactions.executeWithoutResult(status -> {
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int failed = jdbc.update("update order_refund set refund_status = 3, provider_response_code = ?, provider_response_message = ? where refund_no = ? and refund_status = 1", code, message, refundNo);
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// 只有本事务真的把这笔退款置为失败，才把订单退回未退款状态；否则会覆盖并发的退款成功。
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if (failed == 1) orderFundBoundary.markRefundFailed(orderId);
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});
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}
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private void updateProviderResult(String refundNo, ProviderResult result) {
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jdbc.update("update order_refund set provider_refund_no = coalesce(?, provider_refund_no), provider_response_code = ?, provider_response_message = ? where refund_no = ? and refund_status = 1", result.providerNo(), result.code(), result.message(), refundNo);
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}
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private long refundedAmount(long orderId) {
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Long total = jdbc.queryForObject("select coalesce(sum(refund_amount), 0) from order_refund where deleted = 0 and refund_status = 2 and order_id = ?", Long.class, orderId);
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return total == null ? 0 : total;
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}
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/**
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* The merchant a refund must be requested from: the sub-merchant fixed on the payment or the
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* order. Payments made before the collecting sub-merchant was recorded were collected by the
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* configured platform merchant, so those fall back to it instead of the refund failing.
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*/
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private String refundHuifuId(Object storedHuifuId) {
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String resolved = text(storedHuifuId);
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return resolved.isBlank() ? text(huifuPaymentProperties.getMerchantId()) : resolved;
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}
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private String requestDate(Object value) {
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if (value instanceof LocalDateTime dateTime) return REQUEST_DATE.format(dateTime);
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if (value instanceof LocalDate date) return date.format(DateTimeFormatter.BASIC_ISO_DATE);
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return REQUEST_DATE.format(LocalDateTime.now());
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}
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private List<Map<String, Object>> rows(String sql, Object... args) { return DatabaseRows.normalize(jdbc.queryForList(sql, args)); }
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private long number(Object value) { return value instanceof Number number ? number.longValue() : 0; }
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private String text(Object value) { return value == null ? "" : String.valueOf(value).trim(); }
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private record PreparedRefund(String refundNo, long orderId, String huifuId, String paymentNo, String originalProviderNo, String originalRequestDate, long refundAmount) {
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private PreparedRefund(String refundNo, long orderId, long refundAmount) { this(refundNo, orderId, "", "", "", "", refundAmount); }
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}
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private record ProviderResult(boolean success, boolean failed, String code, String message, String providerNo) {
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private static ProviderResult from(Map<String, Object> response) {
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Map<String, Object> data = response.get("data") instanceof Map<?, ?> map ? (Map<String, Object>) map : response;
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String status = textValue(data.get("trans_stat"));
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String code = textValue(data.get("sub_resp_code"));
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if (code.isBlank()) code = textValue(data.get("resp_code"));
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String message = textValue(data.get("sub_resp_desc"));
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if (message.isBlank()) message = textValue(data.get("resp_desc"));
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String providerNo = textValue(data.get("hf_seq_id"));
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boolean codeSuccess = "00000000".equals(code) || "10000".equals(code) || "0".equals(code) || "SUCCESS".equalsIgnoreCase(code);
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boolean success = codeSuccess && (status.isBlank() || "S".equalsIgnoreCase(status) || "SUCCESS".equalsIgnoreCase(status) || "PAID".equalsIgnoreCase(status));
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boolean failed = !success && !("P".equalsIgnoreCase(status) || "PROCESSING".equalsIgnoreCase(status) || "PENDING".equalsIgnoreCase(status));
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return new ProviderResult(success, failed, code, message, providerNo);
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}
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private static String textValue(Object value) { return value == null ? "" : String.valueOf(value).trim(); }
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}
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}
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