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- 轮询配置新增套餐状态、资产状态、重置日前窗口与窗口内流量间隔（迁移 248），间隔三态：正数按间隔、0 不检查、空继承 - 配置按 priority, id 排序合并；在库与已销售无套餐未匹配时告警不入队 - 新增优先级整体重排、匹配预览、立即重算到期时间（异步只提前）、分层统计与重置日前加密统计接口 - 已切换日快照计量的卡流量按观测时间归属，激活前用量只记已结算 - 订单购买与实名激活补齐资产级激活锁，激活前对已切换卡结算一次流量，失败只告警不阻塞，结算不触发通道阈值判定
86 lines
3.2 KiB
Go
86 lines
3.2 KiB
Go
package order
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import (
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"context"
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"time"
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"github.com/google/uuid"
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"go.uber.org/zap"
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"github.com/break/junhong_cmp_fiber/internal/model"
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"github.com/break/junhong_cmp_fiber/pkg/constants"
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)
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// PreActivationSettler 在资产从无生效主套餐变为有生效主套餐之前做一次流量结算（尽力而为，不阻塞）。
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type PreActivationSettler interface {
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SettleBeforeActivation(ctx context.Context, carrierType string, carrierID uint)
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}
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// activationLockWait 是订单路径等待资产级激活锁的最长时间；超时照常继续（行锁与流量按观测时间归属兜底正确性）。
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const activationLockWait = 5 * time.Second
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// SetPreActivationSettler 注入激活前流量结算器；未注入时不做结算。
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func (s *Service) SetPreActivationSettler(settler PreActivationSettler) {
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s.preActivationSettler = settler
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}
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// prepareActivation 在订单激活事务开始前执行：抢资产级激活锁（与排队、指定、队首、实名激活共用同一把锁），
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// 再做激活前流量结算。返回的释放函数须在激活事务提交或回滚后调用。外部网络调用不得放进数据库事务（ENG-TX-001）。
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func (s *Service) prepareActivation(ctx context.Context, order *model.Order) func() {
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carrierType, carrierID, ok := orderCarrier(order)
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if !ok {
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return func() {}
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}
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release := s.acquireActivationLock(ctx, carrierType, carrierID)
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if s.preActivationSettler != nil {
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s.preActivationSettler.SettleBeforeActivation(ctx, carrierType, carrierID)
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}
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return release
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}
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func orderCarrier(order *model.Order) (string, uint, bool) {
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if order == nil {
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return "", 0, false
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}
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if order.OrderType == model.OrderTypeSingleCard && order.IotCardID != nil {
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return constants.AssetTypeIotCard, *order.IotCardID, true
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}
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if order.OrderType == model.OrderTypeDevice && order.DeviceID != nil {
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return constants.AssetTypeDevice, *order.DeviceID, true
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}
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return "", 0, false
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}
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// acquireActivationLock 在最长 activationLockWait 内抢锁；抢不到时记日志并返回空释放函数。
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func (s *Service) acquireActivationLock(ctx context.Context, carrierType string, carrierID uint) func() {
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if s.redis == nil {
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return func() {}
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}
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key := constants.RedisPackageActivationLockKey(carrierType, carrierID)
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token := uuid.NewString()
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deadline := time.Now().Add(activationLockWait)
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for {
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locked, err := s.redis.SetNX(ctx, key, token, constants.PackageActivationLockSeconds*time.Second).Result()
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if err == nil && locked {
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return func() {
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releaseCtx, cancel := context.WithTimeout(context.WithoutCancel(ctx), 2*time.Second)
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defer cancel()
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// 只释放自己持有的锁，避免锁过期后误删他人的锁。
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if current, getErr := s.redis.Get(releaseCtx, key).Result(); getErr == nil && current == token {
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s.redis.Del(releaseCtx, key)
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}
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}
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}
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if err != nil || time.Now().After(deadline) {
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s.logger.Warn("订单激活未能获取资产级激活锁，继续执行（行锁与流量按观测时间归属兜底）",
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zap.String("carrier_type", carrierType), zap.Uint("carrier_id", carrierID), zap.Error(err))
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return func() {}
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}
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select {
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case <-ctx.Done():
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return func() {}
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case <-time.After(200 * time.Millisecond):
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}
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}
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}
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