266 lines
7.3 KiB
Go
266 lines
7.3 KiB
Go
package refundretry
|
|
|
|
import (
|
|
"context"
|
|
"crypto/rand"
|
|
"encoding/hex"
|
|
"fmt"
|
|
"time"
|
|
|
|
"hfb_sys/backend/internal/model"
|
|
"hfb_sys/backend/internal/modules/payment"
|
|
|
|
"github.com/redis/go-redis/v9"
|
|
"go.uber.org/zap"
|
|
"gorm.io/gorm"
|
|
)
|
|
|
|
const (
|
|
refundRetryLockKey = "hfb:job:refundretry:lock"
|
|
maxRetryCount = 10
|
|
baseRetryBackoff = 5 * time.Minute
|
|
maxRetryBackoff = time.Hour
|
|
manualWarnThreshold = 24 * time.Hour
|
|
)
|
|
|
|
type Job struct {
|
|
db *gorm.DB
|
|
redis *redis.Client
|
|
logger *zap.Logger
|
|
payments *payment.Repository
|
|
interval time.Duration
|
|
instanceID string
|
|
}
|
|
|
|
func New(db *gorm.DB, redisClient *redis.Client, logger *zap.Logger, payments *payment.Repository) *Job {
|
|
return &Job{
|
|
db: db,
|
|
redis: redisClient,
|
|
logger: logger,
|
|
payments: payments,
|
|
interval: 2 * time.Minute,
|
|
instanceID: newInstanceID(),
|
|
}
|
|
}
|
|
|
|
// acquireLock 通过 Redis 分布式锁确保同一时刻只有一个实例执行退款补偿。
|
|
// 未配置 Redis 时直接执行；退款同步本身按退款单精确处理，可容忍短时间重复扫描。
|
|
func (j *Job) acquireLock(ctx context.Context) (func(), bool) {
|
|
if j.redis == nil {
|
|
return func() {}, true
|
|
}
|
|
ok, err := j.redis.SetNX(ctx, refundRetryLockKey, j.instanceID, j.lockTTL()).Result()
|
|
if err != nil {
|
|
j.logger.Warn("refund retry job acquire lock failed, run without lock", zap.Error(err))
|
|
return func() {}, true
|
|
}
|
|
if !ok {
|
|
return nil, false
|
|
}
|
|
return j.releaseLock, true
|
|
}
|
|
|
|
// releaseLock 仅在锁仍归本实例时释放，避免误删其他实例的锁。
|
|
func (j *Job) releaseLock() {
|
|
if j.redis == nil {
|
|
return
|
|
}
|
|
relCtx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
|
|
defer cancel()
|
|
script := redis.NewScript(`if redis.call("get", KEYS[1]) == ARGV[1] then return redis.call("del", KEYS[1]) else return 0 end`)
|
|
if err := script.Run(relCtx, j.redis, []string{refundRetryLockKey}, j.instanceID).Err(); err != nil {
|
|
j.logger.Warn("refund retry job release lock failed", zap.Error(err))
|
|
}
|
|
}
|
|
|
|
func (j *Job) lockTTL() time.Duration {
|
|
return 2 * j.interval
|
|
}
|
|
|
|
func newInstanceID() string {
|
|
b := make([]byte, 8)
|
|
if _, err := rand.Read(b); err != nil {
|
|
return fmt.Sprintf("inst-%d", time.Now().UnixNano())
|
|
}
|
|
return hex.EncodeToString(b)
|
|
}
|
|
|
|
func (j *Job) Start(ctx context.Context) {
|
|
if j == nil || j.db == nil || j.payments == nil {
|
|
return
|
|
}
|
|
go j.loop(ctx)
|
|
}
|
|
|
|
func (j *Job) loop(ctx context.Context) {
|
|
j.run(ctx)
|
|
ticker := time.NewTicker(j.interval)
|
|
defer ticker.Stop()
|
|
for {
|
|
select {
|
|
case <-ctx.Done():
|
|
j.logger.Info("refund retry job stopped")
|
|
return
|
|
case <-ticker.C:
|
|
j.run(ctx)
|
|
}
|
|
}
|
|
}
|
|
|
|
func (j *Job) run(ctx context.Context) {
|
|
release, ok := j.acquireLock(ctx)
|
|
if !ok {
|
|
return
|
|
}
|
|
defer release()
|
|
|
|
now := time.Now()
|
|
processed, err := j.syncRefundPayments(ctx, now)
|
|
if err != nil {
|
|
j.logger.Warn("refund retry job sync payments failed", zap.Error(err))
|
|
}
|
|
missing, err := j.warnMissingRefundOrders(ctx, now)
|
|
if err != nil {
|
|
j.logger.Warn("refund retry job scan missing refund orders failed", zap.Error(err))
|
|
}
|
|
if processed > 0 || missing > 0 {
|
|
j.logger.Info("refund retry job finished", zap.Int("processed", processed), zap.Int("missing_refund_orders", missing))
|
|
}
|
|
}
|
|
|
|
func (j *Job) syncRefundPayments(ctx context.Context, now time.Time) (int, error) {
|
|
var rows []model.PaymentOrder
|
|
err := j.db.WithContext(ctx).
|
|
Where("biz_type IN ? AND status IN ? AND updated_at <= ? AND retry_count < ? AND (next_retry_at IS NULL OR next_retry_at <= ?)",
|
|
payment.RefundBizTypes(), []string{"refunding", "failed"}, now.Add(-5*time.Minute), maxRetryCount, now).
|
|
Order("id ASC").
|
|
Limit(100).
|
|
Find(&rows).Error
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
processed := 0
|
|
for _, row := range rows {
|
|
if _, err := j.payments.SyncRefundStatusByPaymentID(ctx, row.ID); err != nil {
|
|
if markErr := j.markRetryFailed(ctx, row, now); markErr != nil {
|
|
j.logger.Warn("refund retry mark failure failed",
|
|
zap.Uint64("payment_id", row.ID),
|
|
zap.Uint64("order_id", row.OrderID),
|
|
zap.Error(markErr),
|
|
)
|
|
}
|
|
j.logger.Warn("refund retry sync failed",
|
|
zap.Uint64("payment_id", row.ID),
|
|
zap.Uint64("order_id", row.OrderID),
|
|
zap.String("biz_type", row.BizType),
|
|
zap.String("status", row.Status),
|
|
zap.Int("retry_count", row.RetryCount+1),
|
|
zap.Error(err),
|
|
)
|
|
continue
|
|
}
|
|
if err := j.resetRetry(ctx, row.ID); err != nil {
|
|
j.logger.Warn("refund retry reset counter failed",
|
|
zap.Uint64("payment_id", row.ID),
|
|
zap.Uint64("order_id", row.OrderID),
|
|
zap.Error(err),
|
|
)
|
|
}
|
|
processed++
|
|
}
|
|
j.warnMaxRetryRefunds(ctx, now)
|
|
return processed, nil
|
|
}
|
|
|
|
func (j *Job) markRetryFailed(ctx context.Context, row model.PaymentOrder, now time.Time) error {
|
|
nextCount := row.RetryCount + 1
|
|
backoff := retryBackoff(nextCount)
|
|
nextRetryAt := now.Add(backoff)
|
|
updates := map[string]any{
|
|
"retry_count": nextCount,
|
|
"last_retry_at": now,
|
|
"next_retry_at": nextRetryAt,
|
|
}
|
|
if nextCount >= maxRetryCount {
|
|
updates["next_retry_at"] = nil
|
|
}
|
|
return j.db.WithContext(ctx).Model(&model.PaymentOrder{}).Where("id = ?", row.ID).Updates(updates).Error
|
|
}
|
|
|
|
func (j *Job) resetRetry(ctx context.Context, paymentID uint64) error {
|
|
return j.db.WithContext(ctx).Model(&model.PaymentOrder{}).Where("id = ?", paymentID).Updates(map[string]any{
|
|
"retry_count": 0,
|
|
"last_retry_at": nil,
|
|
"next_retry_at": nil,
|
|
}).Error
|
|
}
|
|
|
|
func retryBackoff(retryCount int) time.Duration {
|
|
if retryCount <= 1 {
|
|
return baseRetryBackoff
|
|
}
|
|
backoff := baseRetryBackoff
|
|
for i := 1; i < retryCount; i++ {
|
|
backoff *= 2
|
|
if backoff >= maxRetryBackoff {
|
|
return maxRetryBackoff
|
|
}
|
|
}
|
|
return backoff
|
|
}
|
|
|
|
func (j *Job) warnMaxRetryRefunds(ctx context.Context, now time.Time) {
|
|
var rows []model.PaymentOrder
|
|
err := j.db.WithContext(ctx).
|
|
Where("biz_type IN ? AND status IN ? AND retry_count >= ? AND (last_retry_at IS NULL OR last_retry_at <= ?)",
|
|
payment.RefundBizTypes(), []string{"refunding", "failed"}, maxRetryCount, now.Add(-manualWarnThreshold)).
|
|
Order("id ASC").
|
|
Limit(50).
|
|
Find(&rows).Error
|
|
if err != nil {
|
|
j.logger.Warn("refund retry max count scan failed", zap.Error(err))
|
|
return
|
|
}
|
|
for _, row := range rows {
|
|
j.logger.Warn("refund retry reached max count, need manual check",
|
|
zap.Uint64("payment_id", row.ID),
|
|
zap.Uint64("order_id", row.OrderID),
|
|
zap.String("biz_type", row.BizType),
|
|
zap.String("status", row.Status),
|
|
zap.Int("retry_count", row.RetryCount),
|
|
)
|
|
}
|
|
}
|
|
|
|
func (j *Job) warnMissingRefundOrders(ctx context.Context, now time.Time) (int, error) {
|
|
var rows []model.RentalOrder
|
|
err := j.db.WithContext(ctx).
|
|
Where("refund_status IN ? AND refund_amount_cent > 0 AND updated_at <= ?", []string{"pending", "refunding"}, now.Add(-10*time.Minute)).
|
|
Order("id ASC").
|
|
Limit(100).
|
|
Find(&rows).Error
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
missing := 0
|
|
for _, row := range rows {
|
|
var count int64
|
|
if err := j.db.WithContext(ctx).Model(&model.PaymentOrder{}).
|
|
Where("order_id = ? AND biz_type IN ?", row.ID, payment.RefundBizTypes()).
|
|
Count(&count).Error; err != nil {
|
|
return missing, err
|
|
}
|
|
if count > 0 {
|
|
continue
|
|
}
|
|
missing++
|
|
j.logger.Warn("refund order missing payment record, need manual check",
|
|
zap.Uint64("order_id", row.ID),
|
|
zap.String("order_no", row.OrderNo),
|
|
zap.String("refund_status", row.RefundStatus),
|
|
zap.Int64("refund_amount_cent", row.RefundAmountCent),
|
|
)
|
|
}
|
|
return missing, nil
|
|
}
|