fix 微信退款报错

dax-pay/src/main/java/cn/bootx/platform/daxpay/core/channel/wechat/service/WeChatPayCancelService.java

@@ -1,11 +1,12 @@
 package cn.bootx.platform.daxpay.core.channel.wechat.service;
 
 import cn.bootx.platform.common.spring.exception.RetryableException;
+import cn.bootx.platform.daxpay.code.pay.PayChannelEnum;
 import cn.bootx.platform.daxpay.code.paymodel.WeChatPayCode;
 import cn.bootx.platform.daxpay.core.channel.wechat.entity.WeChatPayConfig;
-import cn.bootx.platform.daxpay.core.channel.wechat.entity.WeChatPayment;
 import cn.bootx.platform.daxpay.core.payment.entity.Payment;
 import cn.bootx.platform.daxpay.core.refund.local.AsyncRefundLocal;
+import cn.bootx.platform.daxpay.dto.payment.RefundableInfo;
 import cn.bootx.platform.daxpay.exception.payment.PayFailureException;
 import cn.bootx.platform.starter.file.service.FileUploadService;
 import cn.hutool.core.codec.Base64;
@@ -24,6 +25,7 @@ import org.springframework.stereotype.Service;
 import java.io.ByteArrayInputStream;
 import java.math.BigDecimal;
 import java.util.Map;
+import java.util.Objects;
 import java.util.Optional;
 
 import static cn.bootx.platform.daxpay.code.pay.PayStatusCode.REFUND_PROCESS_FAIL;
@@ -63,10 +65,14 @@ public class WeChatPayCancelService {
     /**
      * 退款
      */
-    public void refund(Payment payment, WeChatPayment weChatPayment, BigDecimal amount,
+    public void refund(Payment payment, BigDecimal amount,
             WeChatPayConfig weChatPayConfig) {
-        String totalFee = weChatPayment.getAmount().multiply(BigDecimal.valueOf(100)).toBigInteger().toString();
+        RefundableInfo refundableInfo = payment.getRefundableInfo().stream()
+                .filter(o -> Objects.equals(o.getPayChannel(), PayChannelEnum.WECHAT.getCode()))
+                .findFirst()
+                .orElseThrow(() -> new PayFailureException("未找到微信支付的详细信息"));
         String refundFee = amount.multiply(BigDecimal.valueOf(100)).toBigInteger().toString();
+        String totalFee = refundableInfo.getAmount().multiply(BigDecimal.valueOf(100)).toBigInteger().toString();
         // 设置退款号
         AsyncRefundLocal.set(IdUtil.getSnowflakeNextIdStr());
         Map<String, String> params = RefundModel.builder()
@@ -79,7 +85,7 @@ public class WeChatPayCancelService {
             .nonce_str(WxPayKit.generateStr())
             .build()
             .createSign(weChatPayConfig.getApiKeyV2(), SignType.HMACSHA256);
-        // 获取证书文件流
+        // 获取证书文件
         if (StrUtil.isNotBlank(weChatPayConfig.getP12())){
             String errorMsg = "微信p.12证书未配置，无法进行退款";
             AsyncRefundLocal.setErrorMsg(errorMsg);

dax-pay/src/main/java/cn/bootx/platform/daxpay/core/channel/wechat/service/WeChatPaymentService.java

@@ -1,14 +1,13 @@
 package cn.bootx.platform.daxpay.core.channel.wechat.service;
 
 import cn.bootx.platform.common.core.exception.BizException;
-import cn.bootx.platform.common.core.util.BigDecimalUtil;
 import cn.bootx.platform.daxpay.code.pay.PayChannelEnum;
 import cn.bootx.platform.daxpay.code.pay.PayStatusCode;
+import cn.bootx.platform.daxpay.core.channel.wechat.dao.WeChatPaymentManager;
+import cn.bootx.platform.daxpay.core.channel.wechat.entity.WeChatPayment;
 import cn.bootx.platform.daxpay.core.pay.local.AsyncPayInfoLocal;
 import cn.bootx.platform.daxpay.core.payment.entity.Payment;
 import cn.bootx.platform.daxpay.core.payment.service.PaymentService;
-import cn.bootx.platform.daxpay.core.channel.wechat.dao.WeChatPaymentManager;
-import cn.bootx.platform.daxpay.core.channel.wechat.entity.WeChatPayment;
 import cn.bootx.platform.daxpay.dto.pay.AsyncPayInfo;
 import cn.bootx.platform.daxpay.dto.payment.PayChannelInfo;
 import cn.bootx.platform.daxpay.dto.payment.RefundableInfo;
@@ -105,16 +104,7 @@ public class WeChatPaymentService {
     /**
      * 更新退款
      */
-    public void updatePayRefund(WeChatPayment weChatPayment, BigDecimal amount) {
-        BigDecimal refundableBalance = weChatPayment.getRefundableBalance().subtract(amount);
-        weChatPayment.setRefundableBalance(refundableBalance);
-        if (BigDecimalUtil.compareTo(refundableBalance, BigDecimal.ZERO) == 0) {
-            weChatPayment.setPayStatus(PayStatusCode.TRADE_REFUNDED);
-        }
-        else {
-            weChatPayment.setPayStatus(PayStatusCode.TRADE_REFUNDING);
-        }
-        weChatPaymentManager.updateById(weChatPayment);
+    public void updatePayRefund(Long paymentId, BigDecimal amount) {
     }
 
 }

dax-pay/src/main/java/cn/bootx/platform/daxpay/core/refund/strategy/WeChatPayRefundStrategy.java

@@ -4,7 +4,6 @@ import cn.bootx.platform.daxpay.code.pay.PayChannelEnum;
 import cn.bootx.platform.daxpay.core.channel.wechat.dao.WeChatPayConfigManager;
 import cn.bootx.platform.daxpay.core.channel.wechat.dao.WeChatPaymentManager;
 import cn.bootx.platform.daxpay.core.channel.wechat.entity.WeChatPayConfig;
-import cn.bootx.platform.daxpay.core.channel.wechat.entity.WeChatPayment;
 import cn.bootx.platform.daxpay.core.channel.wechat.service.WeChatPayCancelService;
 import cn.bootx.platform.daxpay.core.channel.wechat.service.WeChatPaymentService;
 import cn.bootx.platform.daxpay.core.payment.service.PaymentService;
@@ -47,7 +46,7 @@ public class WeChatPayRefundStrategy extends AbsPayRefundStrategy {
     }
 
     /**
-     * 退款前对处理 包含必要的校验以及对Payment对象的创建和保存操作
+     * 退款前对处理, 初始化微信支付配置
      */
     @Override
     public void doBeforeRefundHandler() {
@@ -60,18 +59,10 @@ public class WeChatPayRefundStrategy extends AbsPayRefundStrategy {
      */
     @Override
     public void doRefundHandler() {
-        WeChatPayment weChatPayment = weChatPaymentManager.findByPaymentId(this.getPayment().getId())
-                .orElseThrow(() -> new PayFailureException("微信支付记录不存在"));
-        weChatPayCancelService.refund(this.getPayment(), weChatPayment, this.getRefundModeParam().getAmount(),
-                this.weChatPayConfig);
-        weChatPaymentService.updatePayRefund(weChatPayment, this.getRefundModeParam().getAmount());
+        weChatPayCancelService.refund(this.getPayment(), this.getRefundModeParam().getAmount(), this.weChatPayConfig);
+        weChatPaymentService.updatePayRefund(this.getPayment().getId(), this.getRefundModeParam().getAmount());
         paymentService.updateRefundSuccess(this.getPayment(), this.getRefundModeParam().getAmount(), PayChannelEnum.WECHAT);
+
     }
-    /**
-     * 初始化微信支付
-     */
-    private void initWeChatPayConfig(String appCode) {
-        // 检查并获取微信支付配置
-          }
 
 }

dax-pay/src/main/java/cn/bootx/platform/daxpay/dto/payment/RefundableInfo.java

@@ -17,6 +17,9 @@ import java.math.BigDecimal;
 @Schema(title = "可退款信息")
 public class RefundableInfo {
 
+    /**
+     * @see cn.bootx.platform.daxpay.code.pay.PayChannelEnum
+     */
     @Schema(description = "支付通道")
     private String payChannel;