Files
new-api/service/task_billing.go
wans10andCaIon 58d4e9bd3b fix(billing): 异步任务退款时同步减少 used_quota (#6795)
* fix(billing): 异步任务退款时同步减少 used_quota
退款时仅恢复了 quota(剩余额度),但未同步减少 used_quota(已用额度),
导致"总额度"(quota + used_quota)随退款次数持续虚增,超出用户实际充值金额。

修复三处退款路径:
- RefundTaskQuota:任务失败完整退款
- RecalculateTaskQuota:差额结算退款分支
- controller/midjourney.go:Midjourney 任务失败退款

新增 model.UpdateUserUsedQuota 公开函数,仅调整 used_quota 不影响 request_count。

* fix(billing): 任务退款时同步扣减渠道 used_quota

* fix(billing): complete async task refund accounting

* style(model): group internal Midjourney fields

---------

Co-authored-by: CaIon <i@caion.me>
2026-08-13 22:06:40 +08:00

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package service
import (
"context"
"fmt"
"strings"
"github.com/QuantumNous/new-api/common"
"github.com/QuantumNous/new-api/constant"
"github.com/QuantumNous/new-api/logger"
"github.com/QuantumNous/new-api/model"
relaycommon "github.com/QuantumNous/new-api/relay/common"
"github.com/QuantumNous/new-api/setting/ratio_setting"
"github.com/QuantumNous/new-api/types"
"github.com/gin-gonic/gin"
)
// LogTaskConsumption 记录任务消费日志和统计信息(仅记录,不涉及实际扣费)。
// 实际扣费已由 BillingSessionPreConsumeBilling + SettleBilling)完成。
func LogTaskConsumption(c *gin.Context, info *relaycommon.RelayInfo) {
tokenName := c.GetString("token_name")
logContent := fmt.Sprintf("操作 %s", info.Action)
// 支持任务仅按次计费
if common.StringsContains(constant.TaskPricePatches, info.OriginModelName) {
logContent = fmt.Sprintf("%s,按次计费", logContent)
} else {
if otherRatios := info.PriceData.OtherRatios(); len(otherRatios) > 0 {
var contents []string
for key, ra := range otherRatios {
if 1.0 != ra {
contents = append(contents, fmt.Sprintf("%s: %.2f", key, ra))
}
}
if len(contents) > 0 {
logContent = fmt.Sprintf("%s, 计算参数:%s", logContent, strings.Join(contents, ", "))
}
}
}
other := make(map[string]interface{})
other["is_task"] = true
other["request_path"] = c.Request.URL.Path
other["model_price"] = info.PriceData.ModelPrice
if info.PriceData.ModelRatio > 0 {
other["model_ratio"] = info.PriceData.ModelRatio
}
other["group_ratio"] = info.PriceData.GroupRatioInfo.GroupRatio
if info.PriceData.GroupRatioInfo.HasSpecialRatio {
other["user_group_ratio"] = info.PriceData.GroupRatioInfo.GroupSpecialRatio
}
if info.IsModelMapped {
other["is_model_mapped"] = true
other["upstream_model_name"] = info.UpstreamModelName
}
attachQuotaSaturation(c, info, other)
model.RecordConsumeLog(c, info.UserId, model.RecordConsumeLogParams{
ChannelId: info.ChannelId,
ModelName: info.OriginModelName,
TokenName: tokenName,
Quota: info.PriceData.Quota,
Content: logContent,
TokenId: info.TokenId,
Group: info.UsingGroup,
Other: other,
})
model.UpdateUserUsedQuotaAndRequestCount(info.UserId, info.PriceData.Quota)
model.UpdateChannelUsedQuota(info.ChannelId, info.PriceData.Quota)
}
// ---------------------------------------------------------------------------
// 异步任务计费辅助函数
// ---------------------------------------------------------------------------
// resolveTokenKey 通过 TokenId 运行时获取令牌 Key(用于 Redis 缓存操作)。
// 如果令牌已被删除或查询失败,返回空字符串。
func resolveTokenKey(ctx context.Context, tokenId int, taskID string) string {
token, err := model.GetTokenById(tokenId)
if err != nil {
logger.LogWarn(ctx, fmt.Sprintf("获取令牌 key 失败 (tokenId=%d, task=%s): %s", tokenId, taskID, err.Error()))
return ""
}
return token.Key
}
// taskIsSubscription 判断任务是否通过订阅计费。
func taskIsSubscription(task *model.Task) bool {
return task.PrivateData.BillingSource == BillingSourceSubscription && task.PrivateData.SubscriptionId > 0
}
// taskAdjustFunding 调整任务的资金来源(钱包或订阅),delta > 0 表示扣费,delta < 0 表示退还。
func taskAdjustFunding(task *model.Task, delta int) error {
if taskIsSubscription(task) {
return model.PostConsumeUserSubscriptionDelta(task.PrivateData.SubscriptionId, int64(delta))
}
if delta > 0 {
return model.DecreaseUserQuota(task.UserId, delta, false)
}
return model.IncreaseUserQuota(task.UserId, -delta, false)
}
// taskAdjustTokenQuota 调整任务的令牌额度,delta > 0 表示扣费,delta < 0 表示退还。
// 需要通过 resolveTokenKey 运行时获取 key(不从 PrivateData 中读取)。
func taskAdjustTokenQuota(ctx context.Context, task *model.Task, delta int) {
if task.PrivateData.TokenId <= 0 || delta == 0 {
return
}
tokenKey := resolveTokenKey(ctx, task.PrivateData.TokenId, task.TaskID)
if tokenKey == "" {
return
}
var err error
if delta > 0 {
err = model.DecreaseTokenQuota(task.PrivateData.TokenId, tokenKey, delta)
} else {
err = model.IncreaseTokenQuota(task.PrivateData.TokenId, tokenKey, -delta)
}
if err != nil {
logger.LogWarn(ctx, fmt.Sprintf("调整令牌额度失败 (delta=%d, task=%s): %s", delta, task.TaskID, err.Error()))
}
}
// taskBillingOther 从 task 的 BillingContext 构建日志 Other 字段。
func taskBillingOther(task *model.Task) map[string]interface{} {
other := make(map[string]interface{})
if bc := task.PrivateData.BillingContext; bc != nil {
other["model_price"] = bc.ModelPrice
if bc.ModelRatio > 0 {
other["model_ratio"] = bc.ModelRatio
}
other["group_ratio"] = bc.GroupRatio
if priceData := taskBillingContextPriceData(bc); priceData != nil {
for k, v := range priceData.OtherRatios() {
other[k] = v
}
}
}
props := task.Properties
if props.UpstreamModelName != "" && props.UpstreamModelName != props.OriginModelName {
other["is_model_mapped"] = true
other["upstream_model_name"] = props.UpstreamModelName
}
return other
}
func taskBillingContextPriceData(bc *model.TaskBillingContext) *types.PriceData {
if bc == nil || len(bc.OtherRatios) == 0 {
return nil
}
priceData := &types.PriceData{}
if !priceData.ReplaceOtherRatios(bc.OtherRatios) {
return nil
}
return priceData
}
// taskModelName 从 BillingContext 或 Properties 中获取模型名称。
func taskModelName(task *model.Task) string {
if bc := task.PrivateData.BillingContext; bc != nil && bc.OriginModelName != "" {
return bc.OriginModelName
}
return task.Properties.OriginModelName
}
// RefundTaskQuota 统一的任务失败退款逻辑。
// 当异步任务失败时,退还资金与令牌额度,并回减用户和渠道用量。
// 返回资金来源是否已成功退还;失败时保留 quota,供显式重试或人工对账。
func RefundTaskQuota(ctx context.Context, task *model.Task, reason string) bool {
quota := task.Quota
if quota == 0 {
return true
}
// 1. 退还资金来源(钱包或订阅)
if err := taskAdjustFunding(task, -quota); err != nil {
logger.LogWarn(ctx, fmt.Sprintf("退还资金来源失败 task %s: %s", task.TaskID, err.Error()))
return false
}
// 2. 退还令牌额度
taskAdjustTokenQuota(ctx, task, -quota)
// 3. 回减预扣时累计的用户和渠道用量,请求次数保持不变
model.UpdateUserUsedQuota(task.UserId, -quota)
model.UpdateChannelUsedQuota(task.ChannelId, -quota)
// 4. 记录日志
other := taskBillingOther(task)
other["task_id"] = task.TaskID
other["reason"] = reason
model.RecordTaskBillingLog(model.RecordTaskBillingLogParams{
UserId: task.UserId,
LogType: model.LogTypeRefund,
Content: "",
ChannelId: task.ChannelId,
ModelName: taskModelName(task),
Quota: quota,
TokenId: task.PrivateData.TokenId,
Group: task.Group,
Other: other,
})
// 5. 资金退款完成后再清除持久化标记。
// 回写失败必须显式告警,避免漏掉潜在的重复退款风险。
task.Quota = 0
if err := task.UpdateQuota(); err != nil {
logger.LogError(ctx, fmt.Sprintf("退款成功但清除 task quota 失败 task %s: %s", task.TaskID, err.Error()))
}
return true
}
// RecalculateTaskQuota 通用的异步差额结算。
// actualQuota 是任务完成后的实际应扣额度,与预扣额度 (task.Quota) 做差额结算。
// reason 用于日志记录(例如 "token重算" 或 "adaptor调整")。
// clamps 可选:若计算 actualQuota 时发生额度饱和,将其记入日志 admin_info(仅管理员可见)。
func RecalculateTaskQuota(ctx context.Context, task *model.Task, actualQuota int, reason string, clamps ...*common.QuotaClamp) {
if actualQuota <= 0 {
return
}
preConsumedQuota := task.Quota
quotaDelta := actualQuota - preConsumedQuota
if quotaDelta == 0 {
logger.LogInfo(ctx, fmt.Sprintf("任务 %s 预扣费准确(%s%s",
task.TaskID, logger.LogQuota(actualQuota), reason))
return
}
logger.LogInfo(ctx, fmt.Sprintf("任务 %s 差额结算:delta=%s(实际:%s,预扣:%s%s",
task.TaskID,
logger.LogQuota(quotaDelta),
logger.LogQuota(actualQuota),
logger.LogQuota(preConsumedQuota),
reason,
))
// 调整资金来源
if err := taskAdjustFunding(task, quotaDelta); err != nil {
logger.LogError(ctx, fmt.Sprintf("差额结算资金调整失败 task %s: %s", task.TaskID, err.Error()))
return
}
// 调整令牌额度
taskAdjustTokenQuota(ctx, task, quotaDelta)
task.Quota = actualQuota
if err := task.UpdateQuota(); err != nil {
logger.LogError(ctx, fmt.Sprintf("差额结算回写 quota 失败 task %s: %s", task.TaskID, err.Error()))
}
// 提交阶段已经累计过一次请求;结算阶段只调整最终用量。
model.UpdateUserUsedQuota(task.UserId, quotaDelta)
model.UpdateChannelUsedQuota(task.ChannelId, quotaDelta)
var logType int
var logQuota int
if quotaDelta > 0 {
logType = model.LogTypeConsume
logQuota = quotaDelta
} else {
logType = model.LogTypeRefund
logQuota = -quotaDelta
}
other := taskBillingOther(task)
other["task_id"] = task.TaskID
other["pre_consumed_quota"] = preConsumedQuota
other["actual_quota"] = actualQuota
for _, clamp := range clamps {
attachQuotaSaturationToOther(other, clamp)
}
model.RecordTaskBillingLog(model.RecordTaskBillingLogParams{
UserId: task.UserId,
LogType: logType,
Content: reason,
ChannelId: task.ChannelId,
ModelName: taskModelName(task),
Quota: logQuota,
TokenId: task.PrivateData.TokenId,
Group: task.Group,
Other: other,
NodeName: task.PrivateData.NodeName,
})
}
// RecalculateTaskQuotaByTokens 根据实际 token 消耗重新计费(异步差额结算)。
// 当任务成功且返回了 totalTokens 时,根据模型倍率和分组倍率重新计算实际扣费额度,
// 与预扣费的差额进行补扣或退还。支持钱包和订阅计费来源。
func RecalculateTaskQuotaByTokens(ctx context.Context, task *model.Task, totalTokens int) {
if totalTokens <= 0 {
return
}
modelName := taskModelName(task)
// 获取模型价格和倍率
modelRatio, hasRatioSetting, _ := ratio_setting.GetModelRatio(modelName)
// 只有配置了倍率(非固定价格)时才按 token 重新计费
if !hasRatioSetting || modelRatio <= 0 {
return
}
// 获取用户和组的倍率信息
group := task.Group
if group == "" {
user, err := model.GetUserById(task.UserId, false)
if err == nil {
group = user.Group
}
}
if group == "" {
return
}
groupRatio := ratio_setting.GetGroupRatio(group)
userGroupRatio, hasUserGroupRatio := ratio_setting.GetGroupGroupRatio(group, group)
var finalGroupRatio float64
if hasUserGroupRatio {
finalGroupRatio = userGroupRatio
} else {
finalGroupRatio = groupRatio
}
// 计算 OtherRatios 乘积(视频折扣、时长等)
otherMultiplier := 1.0
if priceData := taskBillingContextPriceData(task.PrivateData.BillingContext); priceData != nil {
otherMultiplier = priceData.OtherRatioMultiplier()
}
// 计算实际应扣费额度: totalTokens * modelRatio * groupRatio * otherMultiplier(饱和转换,防止溢出成负数)
actualQuota, clamp := common.QuotaFromFloatChecked(float64(totalTokens) * modelRatio * finalGroupRatio * otherMultiplier)
reason := fmt.Sprintf("token重算:tokens=%d, modelRatio=%.2f, groupRatio=%.2f, otherMultiplier=%.4f", totalTokens, modelRatio, finalGroupRatio, otherMultiplier)
RecalculateTaskQuota(ctx, task, actualQuota, reason, clamp)
}