feat: integrate unified payment and wallet refunds

backend/api/internal/logic/payment/close.go

@@ -0,0 +1,68 @@
+package payment
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"time"
+
+	"git.apinb.com/heqiapp/platforms/backend/api/internal/config"
+	"git.apinb.com/heqiapp/platforms/backend/api/internal/impl"
+	"git.apinb.com/heqiapp/platforms/backend/api/internal/models"
+	"github.com/gin-gonic/gin"
+	"github.com/smartwalle/alipay/v3"
+)
+
+// CloseExpired 批量关闭已过期的渠道支付单；单笔失败留待下一轮安全重试。
+func CloseExpired(ctx context.Context, limit int) (int, error) {
+	var orders []models.PaymentOrder
+	if err := impl.DBService.Where("payment_status = ? AND expires_at <= ?", StatusPending, time.Now()).Order("expires_at asc").Limit(limit).Find(&orders).Error; err != nil {
+		return 0, err
+	}
+	closed := 0
+	for _, order := range orders {
+		if err := closeChannelOrder(ctx, order); err != nil {
+			continue
+		}
+		now := time.Now()
+		result := impl.DBService.Model(&models.PaymentOrder{}).Where("id = ? AND payment_status = ?", order.ID, StatusPending).Updates(map[string]any{"payment_status": StatusClosed, "closed_at": &now})
+		if result.Error == nil && result.RowsAffected == 1 {
+			closed++
+		}
+	}
+	return closed, nil
+}
+
+func closeChannelOrder(ctx context.Context, order models.PaymentOrder) error {
+	if order.Channel == "alipay" {
+		client, err := alipayClient()
+		if err != nil {
+			return err
+		}
+		_, err = client.TradeClose(ctx, alipay.TradeClose{OutTradeNo: order.PaymentNo})
+		return err
+	}
+	if order.Channel == "wechat" {
+		client, err := wechatClient(ctx)
+		if err != nil {
+			return err
+		}
+		_, err = client.Post(ctx, fmt.Sprintf("https://api.mch.weixin.qq.com/v3/pay/transactions/out-trade-no/%s/close", order.PaymentNo), map[string]string{"mchid": config.Spec.Payment.Wechat.MerchantID})
+		return err
+	}
+	return nil
+}
+
+// CloseExpiredHandler 只接受 Worker 共享凭证，不暴露为平台用户动作。
+func CloseExpiredHandler(ctx *gin.Context) {
+	if config.Spec.Payment.InternalServiceToken == "" || ctx.GetHeader("X-Heqi-Worker-Token") != config.Spec.Payment.InternalServiceToken {
+		ctx.AbortWithStatus(http.StatusUnauthorized)
+		return
+	}
+	count, err := CloseExpired(ctx, 100)
+	if err != nil {
+		ctx.JSON(http.StatusInternalServerError, gin.H{"error": "close expired payments failed"})
+		return
+	}
+	ctx.JSON(http.StatusOK, gin.H{"closed": count})
+}