480 lines
20 KiB
Go
480 lines
20 KiB
Go
// Package mysql 实现 user-service 的 MySQL 持久化边界。
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package mysql
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import (
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"context"
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"database/sql"
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"hyapp/pkg/xerr"
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userdomain "hyapp/services/user-service/internal/domain/user"
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)
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// GetUserIdentity 按 user_id 返回当前有效展示号快照；过期恢复由 service 层统一触发。
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func (r *Repository) GetUserIdentity(ctx context.Context, userID int64) (userdomain.Identity, error) {
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// 直接读取 users 当前快照；是否懒过期由 service 层统一判断。
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user, err := r.GetUser(ctx, userID)
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if err != nil {
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return userdomain.Identity{}, err
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}
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if user.CurrentDisplayUserID == "" {
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// 理论上用户创建事务会保证短号存在，该分支保护脏数据。
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return userdomain.Identity{}, xerr.New(xerr.DisplayUserIDNotFound, "display_user_id not found")
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}
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return user.EffectiveIdentity(), nil
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}
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// ResolveDisplayUserID 只解析当前有效展示号。
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// 查询前先按输入短号触发懒过期，保证过期靓号不继续解析，默认短号能恢复解析。
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func (r *Repository) ResolveDisplayUserID(ctx context.Context, displayUserID string, nowMs int64) (userdomain.Identity, error) {
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// 解析前按输入短号触发懒过期，避免过期靓号继续被解析。
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if err := r.expirePrettyByDisplayUserID(ctx, displayUserID, nowMs, "lazy_resolve"); err != nil {
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return userdomain.Identity{}, err
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}
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user, err := r.queryUser(ctx, r.db, "WHERE current_display_user_id = ?", displayUserID)
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if err == sql.ErrNoRows {
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// held 默认号和过期靓号都不会匹配 current_display_user_id。
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return userdomain.Identity{}, xerr.New(xerr.DisplayUserIDNotFound, "display_user_id not found")
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}
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if err != nil {
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return userdomain.Identity{}, err
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}
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return user.EffectiveIdentity(), nil
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}
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// ChangeDisplayUserID 修改默认短号；有 active 靓号时拒绝，避免过期恢复目标不清晰。
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func (r *Repository) ChangeDisplayUserID(ctx context.Context, command userdomain.DisplayUserIDChangeCommand) (userdomain.Identity, error) {
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// 默认短号修改涉及 users、短号记录和变更日志，必须在一个事务内完成。
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tx, err := r.db.BeginTx(ctx, nil)
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if err != nil {
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return userdomain.Identity{}, err
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}
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defer tx.Rollback()
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user, err := r.queryUser(ctx, tx, "WHERE user_id = ? FOR UPDATE", command.UserID)
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if err == sql.ErrNoRows {
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// FOR UPDATE 锁住用户行，避免并发修改默认短号或申请靓号。
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return userdomain.Identity{}, xerr.New(xerr.NotFound, "user not found")
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}
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if err != nil {
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return userdomain.Identity{}, err
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}
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if user.DisplayUserIDExpired(command.ChangedAtMs) {
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// 修改前先恢复过期靓号，避免默认短号仍处于 held。
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identity, err := r.expirePrettyInTx(ctx, tx, user, "", command.ChangedAtMs, command.RequestID)
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if err != nil {
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return userdomain.Identity{}, err
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}
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user = userdomain.User{
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UserID: identity.UserID,
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DefaultDisplayUserID: identity.DefaultDisplayUserID,
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CurrentDisplayUserID: identity.DisplayUserID,
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CurrentDisplayUserIDKind: identity.DisplayUserIDKind,
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Status: user.Status,
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CreatedAtMs: user.CreatedAtMs,
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UpdatedAtMs: command.ChangedAtMs,
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}
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}
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if user.CurrentDisplayUserIDKind == userdomain.DisplayUserIDKindPretty {
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// active 靓号期间拒绝改默认短号，保证过期恢复目标稳定。
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return userdomain.Identity{}, xerr.New(xerr.DisplayUserIDPrettyActive, "pretty display_user_id is active")
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}
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if user.DefaultDisplayUserID == command.NewDisplayUserID {
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// 修改为相同默认短号按幂等成功处理，不写日志。
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return user.EffectiveIdentity(), nil
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}
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if err := r.assertDisplayUserIDAvailable(ctx, tx, command.NewDisplayUserID, command.UserID, true); err != nil {
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return userdomain.Identity{}, err
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}
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if command.CooldownMs > 0 {
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// 冷却期检查必须在事务内读取变更日志，避免并发绕过。
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if err := r.assertChangeCooldown(ctx, tx, command); err != nil {
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return userdomain.Identity{}, err
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}
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}
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// 旧默认短号释放，新默认短号插入为 active。
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_, err = tx.ExecContext(ctx, `
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UPDATE user_display_user_ids
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SET status = ?, released_at_ms = ?, release_reason = ?, updated_at_ms = ?
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WHERE user_id = ? AND display_user_id = ? AND display_user_id_kind = ? AND status = ?
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`, string(userdomain.DisplayUserIDStatusReleased), command.ChangedAtMs, command.Reason, command.ChangedAtMs, command.UserID, user.DefaultDisplayUserID, string(userdomain.DisplayUserIDKindDefault), string(userdomain.DisplayUserIDStatusActive))
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if err != nil {
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return userdomain.Identity{}, err
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}
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_, err = tx.ExecContext(ctx, `
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INSERT INTO user_display_user_ids (display_user_id, user_id, display_user_id_kind, status, assigned_at_ms, activated_at_ms, created_at_ms, updated_at_ms)
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VALUES (?, ?, ?, ?, ?, ?, ?, ?)
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`, command.NewDisplayUserID, command.UserID, string(userdomain.DisplayUserIDKindDefault), string(userdomain.DisplayUserIDStatusActive), command.ChangedAtMs, command.ChangedAtMs, command.ChangedAtMs, command.ChangedAtMs)
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if err != nil {
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return userdomain.Identity{}, mapDuplicateError(err)
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}
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_, err = tx.ExecContext(ctx, `
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UPDATE users
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SET default_display_user_id = ?, current_display_user_id = ?, current_display_user_id_kind = ?, current_display_user_id_expires_at_ms = NULL, updated_at_ms = ?
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WHERE user_id = ?
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`, command.NewDisplayUserID, command.NewDisplayUserID, string(userdomain.DisplayUserIDKindDefault), command.ChangedAtMs, command.UserID)
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if err != nil {
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return userdomain.Identity{}, mapDuplicateError(err)
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}
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if err := insertDisplayUserIDChangeLog(ctx, tx, displayUserIDLog{
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UserID: command.UserID,
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OldID: user.DefaultDisplayUserID,
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NewID: command.NewDisplayUserID,
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OldKind: userdomain.DisplayUserIDKindDefault,
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NewKind: userdomain.DisplayUserIDKindDefault,
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ChangeType: "default_change",
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Reason: command.Reason,
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OperatorID: command.OperatorUserID,
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RequestID: command.RequestID,
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CreatedAtMs: command.ChangedAtMs,
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}); err != nil {
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return userdomain.Identity{}, err
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}
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if err := tx.Commit(); err != nil {
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// commit 失败时调用方不能使用返回 identity。
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return userdomain.Identity{}, err
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}
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return userdomain.Identity{
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UserID: command.UserID,
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DisplayUserID: command.NewDisplayUserID,
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DefaultDisplayUserID: command.NewDisplayUserID,
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DisplayUserIDKind: userdomain.DisplayUserIDKindDefault,
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Status: userdomain.DisplayUserIDStatusActive,
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}, nil
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}
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// ApplyPrettyDisplayUserID 创建临时靓号租约，并把默认短号置为 held。
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func (r *Repository) ApplyPrettyDisplayUserID(ctx context.Context, command userdomain.PrettyDisplayUserIDCommand) (userdomain.Identity, string, error) {
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// 靓号申请涉及租约、默认短号 held、当前展示号覆盖和变更日志，必须事务化。
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tx, err := r.db.BeginTx(ctx, nil)
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if err != nil {
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return userdomain.Identity{}, "", err
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}
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defer tx.Rollback()
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user, err := r.queryUser(ctx, tx, "WHERE user_id = ? FOR UPDATE", command.UserID)
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if err == sql.ErrNoRows {
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// 用户不存在不能创建租约。
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return userdomain.Identity{}, "", xerr.New(xerr.NotFound, "user not found")
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}
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if err != nil {
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return userdomain.Identity{}, "", err
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}
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if user.DisplayUserIDExpired(command.NowMs) {
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// 如果旧靓号已过期，先恢复默认短号再申请新靓号。
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identity, err := r.expirePrettyInTx(ctx, tx, user, "", command.NowMs, command.RequestID)
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if err != nil {
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return userdomain.Identity{}, "", err
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}
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user.CurrentDisplayUserID = identity.DisplayUserID
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user.CurrentDisplayUserIDKind = identity.DisplayUserIDKind
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user.CurrentDisplayUserIDExpiresAtMs = 0
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}
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if user.CurrentDisplayUserIDKind == userdomain.DisplayUserIDKindPretty {
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// 同一用户不能叠加 active 靓号。
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return userdomain.Identity{}, "", xerr.New(xerr.DisplayUserIDPrettyActive, "pretty display_user_id is active")
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}
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if err := r.assertDisplayUserIDAvailable(ctx, tx, command.PrettyDisplayID, command.UserID, false); err != nil {
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if xerr.IsCode(err, xerr.DisplayUserIDExists) {
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// 靓号冲突使用专用 reason，便于前端展示购买失败原因。
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return userdomain.Identity{}, "", xerr.New(xerr.DisplayUserIDPrettyNotAvailable, "pretty display_user_id is not available")
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}
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return userdomain.Identity{}, "", err
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}
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// 默认短号从 active 改为 held，过期时会重新激活。
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expiresAtMs := command.NowMs + command.LeaseDurationMs
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_, err = tx.ExecContext(ctx, `
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UPDATE user_display_user_ids
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SET status = ?, updated_at_ms = ?
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WHERE user_id = ? AND display_user_id = ? AND display_user_id_kind = ? AND status = ?
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`, string(userdomain.DisplayUserIDStatusHeld), command.NowMs, command.UserID, user.DefaultDisplayUserID, string(userdomain.DisplayUserIDKindDefault), string(userdomain.DisplayUserIDStatusActive))
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if err != nil {
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return userdomain.Identity{}, "", err
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}
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_, err = tx.ExecContext(ctx, `
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INSERT INTO pretty_display_user_id_leases (lease_id, display_user_id, user_id, status, starts_at_ms, expires_at_ms, payment_receipt_id, source, created_at_ms, updated_at_ms)
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VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
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`, command.LeaseID, command.PrettyDisplayID, command.UserID, string(userdomain.PrettyLeaseStatusActive), command.NowMs, expiresAtMs, nullableString(command.PaymentReceiptID), command.Source, command.NowMs, command.NowMs)
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if err != nil {
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return userdomain.Identity{}, "", mapPrettyDuplicateError(err)
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}
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_, err = tx.ExecContext(ctx, `
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INSERT INTO user_display_user_ids (display_user_id, user_id, display_user_id_kind, status, assigned_at_ms, activated_at_ms, expires_at_ms, created_at_ms, updated_at_ms)
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VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)
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`, command.PrettyDisplayID, command.UserID, string(userdomain.DisplayUserIDKindPretty), string(userdomain.DisplayUserIDStatusActive), command.NowMs, command.NowMs, expiresAtMs, command.NowMs, command.NowMs)
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if err != nil {
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return userdomain.Identity{}, "", mapPrettyDuplicateError(err)
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}
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_, err = tx.ExecContext(ctx, `
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UPDATE users
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SET current_display_user_id = ?, current_display_user_id_kind = ?, current_display_user_id_expires_at_ms = ?, updated_at_ms = ?
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WHERE user_id = ?
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`, command.PrettyDisplayID, string(userdomain.DisplayUserIDKindPretty), expiresAtMs, command.NowMs, command.UserID)
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if err != nil {
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return userdomain.Identity{}, "", mapPrettyDuplicateError(err)
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}
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if err := insertDisplayUserIDChangeLog(ctx, tx, displayUserIDLog{
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UserID: command.UserID,
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OldID: user.CurrentDisplayUserID,
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NewID: command.PrettyDisplayID,
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OldKind: user.CurrentDisplayUserIDKind,
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NewKind: userdomain.DisplayUserIDKindPretty,
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ChangeType: "pretty_apply",
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LeaseID: command.LeaseID,
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Reason: "pretty_apply",
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OperatorID: command.OperatorUserID,
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RequestID: command.RequestID,
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CreatedAtMs: command.NowMs,
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}); err != nil {
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return userdomain.Identity{}, "", err
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}
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if err := tx.Commit(); err != nil {
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// commit 失败时租约和展示号覆盖都不能视为成功。
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return userdomain.Identity{}, "", err
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}
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return userdomain.Identity{
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UserID: command.UserID,
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DisplayUserID: command.PrettyDisplayID,
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DefaultDisplayUserID: user.DefaultDisplayUserID,
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DisplayUserIDKind: userdomain.DisplayUserIDKindPretty,
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DisplayUserIDExpiresAtMs: expiresAtMs,
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Status: userdomain.DisplayUserIDStatusActive,
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}, command.LeaseID, nil
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}
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// ExpirePrettyDisplayUserID 把到期靓号恢复成默认短号；该方法是定时和懒过期的共同事务。
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func (r *Repository) ExpirePrettyDisplayUserID(ctx context.Context, command userdomain.ExpirePrettyDisplayUserIDCommand) (userdomain.Identity, error) {
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// 定时过期、懒过期和手动过期都复用同一事务入口。
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tx, err := r.db.BeginTx(ctx, nil)
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if err != nil {
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return userdomain.Identity{}, err
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}
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defer tx.Rollback()
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user, err := r.queryUser(ctx, tx, "WHERE user_id = ? FOR UPDATE", command.UserID)
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if err == sql.ErrNoRows {
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// 用户不存在时不能恢复短号。
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return userdomain.Identity{}, xerr.New(xerr.NotFound, "user not found")
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}
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if err != nil {
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return userdomain.Identity{}, err
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}
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identity, err := r.expirePrettyInTx(ctx, tx, user, command.LeaseID, command.NowMs, command.RequestID)
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if err != nil {
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return userdomain.Identity{}, err
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}
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if err := tx.Commit(); err != nil {
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return userdomain.Identity{}, err
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}
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return identity, nil
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}
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func (r *Repository) expirePrettyByDisplayUserID(ctx context.Context, displayUserID string, nowMs int64, requestID string) error {
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// 只找可能受输入短号影响的过期 pretty 用户，避免每次解析全表扫描。
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var userID int64
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err := r.db.QueryRowContext(ctx, `
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SELECT user_id
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FROM users
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WHERE current_display_user_id_kind = ?
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AND current_display_user_id_expires_at_ms IS NOT NULL
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AND current_display_user_id_expires_at_ms <= ?
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AND (current_display_user_id = ? OR default_display_user_id = ?)
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LIMIT 1
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`, string(userdomain.DisplayUserIDKindPretty), nowMs, displayUserID, displayUserID).Scan(&userID)
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if err == sql.ErrNoRows {
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// 没有过期记录时无需恢复。
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return nil
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}
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if err != nil {
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return err
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}
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_, err = r.ExpirePrettyDisplayUserID(ctx, userdomain.ExpirePrettyDisplayUserIDCommand{
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UserID: userID,
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RequestID: requestID,
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NowMs: nowMs,
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})
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return err
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}
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func (r *Repository) expirePrettyInTx(ctx context.Context, tx *sql.Tx, user userdomain.User, leaseID string, nowMs int64, requestID string) (userdomain.Identity, error) {
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// 调用方必须已经锁住 users 行；本函数继续锁 active lease 行。
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if user.CurrentDisplayUserIDKind != userdomain.DisplayUserIDKindPretty {
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// 非 pretty 状态重复过期按幂等成功返回当前身份。
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return user.EffectiveIdentity(), nil
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}
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if user.CurrentDisplayUserIDExpiresAtMs > nowMs {
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// 未到期时拒绝恢复，防止提前释放已购买靓号。
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return userdomain.Identity{}, xerr.New(xerr.DisplayUserIDLeaseExpired, "pretty display_user_id lease is not expired")
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}
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var activeLeaseID string
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err := tx.QueryRowContext(ctx, `
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SELECT lease_id
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FROM pretty_display_user_id_leases
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WHERE user_id = ? AND status = ?
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FOR UPDATE
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`, user.UserID, string(userdomain.PrettyLeaseStatusActive)).Scan(&activeLeaseID)
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if err != nil && err != sql.ErrNoRows {
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return userdomain.Identity{}, err
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}
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if leaseID != "" && activeLeaseID != "" && leaseID != activeLeaseID {
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// 指定 lease_id 不匹配 active lease 时拒绝，防止旧任务误释放新租约。
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return userdomain.Identity{}, xerr.New(xerr.DisplayUserIDLeaseExpired, "pretty display_user_id lease is not active")
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}
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// 租约、pretty 短号记录、默认短号记录和 users 快照一起恢复。
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_, err = tx.ExecContext(ctx, `
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UPDATE pretty_display_user_id_leases
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SET status = ?, updated_at_ms = ?
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WHERE user_id = ? AND status = ?
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`, string(userdomain.PrettyLeaseStatusExpired), nowMs, user.UserID, string(userdomain.PrettyLeaseStatusActive))
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if err != nil {
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return userdomain.Identity{}, err
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}
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_, err = tx.ExecContext(ctx, `
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UPDATE user_display_user_ids
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SET status = ?, released_at_ms = ?, release_reason = ?, updated_at_ms = ?
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WHERE user_id = ? AND display_user_id = ? AND display_user_id_kind = ? AND status = ?
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`, string(userdomain.DisplayUserIDStatusExpired), nowMs, "pretty_expire", nowMs, user.UserID, user.CurrentDisplayUserID, string(userdomain.DisplayUserIDKindPretty), string(userdomain.DisplayUserIDStatusActive))
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if err != nil {
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return userdomain.Identity{}, err
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}
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_, err = tx.ExecContext(ctx, `
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UPDATE user_display_user_ids
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SET status = ?, activated_at_ms = ?, updated_at_ms = ?
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WHERE user_id = ? AND display_user_id = ? AND display_user_id_kind = ? AND status = ?
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`, string(userdomain.DisplayUserIDStatusActive), nowMs, nowMs, user.UserID, user.DefaultDisplayUserID, string(userdomain.DisplayUserIDKindDefault), string(userdomain.DisplayUserIDStatusHeld))
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if err != nil {
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return userdomain.Identity{}, err
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}
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_, err = tx.ExecContext(ctx, `
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UPDATE users
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SET current_display_user_id = default_display_user_id, current_display_user_id_kind = ?, current_display_user_id_expires_at_ms = NULL, updated_at_ms = ?
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WHERE user_id = ?
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`, string(userdomain.DisplayUserIDKindDefault), nowMs, user.UserID)
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if err != nil {
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return userdomain.Identity{}, err
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}
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if err := insertDisplayUserIDChangeLog(ctx, tx, displayUserIDLog{
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UserID: user.UserID,
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OldID: user.CurrentDisplayUserID,
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NewID: user.DefaultDisplayUserID,
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OldKind: userdomain.DisplayUserIDKindPretty,
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NewKind: userdomain.DisplayUserIDKindDefault,
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ChangeType: "pretty_expire",
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LeaseID: activeLeaseID,
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Reason: "pretty_expire",
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RequestID: requestID,
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CreatedAtMs: nowMs,
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}); err != nil {
|
||
return userdomain.Identity{}, err
|
||
}
|
||
|
||
return userdomain.Identity{
|
||
UserID: user.UserID,
|
||
DisplayUserID: user.DefaultDisplayUserID,
|
||
DefaultDisplayUserID: user.DefaultDisplayUserID,
|
||
DisplayUserIDKind: userdomain.DisplayUserIDKindDefault,
|
||
Status: userdomain.DisplayUserIDStatusActive,
|
||
}, nil
|
||
}
|
||
|
||
func (r *Repository) assertDisplayUserIDAvailable(ctx context.Context, tx *sql.Tx, displayUserID string, userID int64, allowSameOwner bool) error {
|
||
// FOR UPDATE 锁住目标短号记录，避免并发抢占同一个 display_user_id。
|
||
var existingUserID int64
|
||
err := tx.QueryRowContext(ctx, `
|
||
SELECT user_id
|
||
FROM user_display_user_ids
|
||
WHERE display_user_id = ? AND status IN (?, ?, ?, ?)
|
||
FOR UPDATE
|
||
`, displayUserID, string(userdomain.DisplayUserIDStatusActive), string(userdomain.DisplayUserIDStatusHeld), string(userdomain.DisplayUserIDStatusReserved), string(userdomain.DisplayUserIDStatusBlocked)).Scan(&existingUserID)
|
||
if err == sql.ErrNoRows {
|
||
// 没有 active/held/reserved/blocked 记录时可用。
|
||
return nil
|
||
}
|
||
if err != nil {
|
||
return err
|
||
}
|
||
if allowSameOwner && existingUserID == userID {
|
||
// 默认短号修改允许同用户幂等检查通过。
|
||
return nil
|
||
}
|
||
|
||
return xerr.New(xerr.DisplayUserIDExists, "display_user_id already exists")
|
||
}
|
||
|
||
func (r *Repository) assertChangeCooldown(ctx context.Context, tx *sql.Tx, command userdomain.DisplayUserIDChangeCommand) error {
|
||
// 冷却期只统计默认短号修改，不统计靓号 apply/expire。
|
||
var lastChangedAt sql.NullInt64
|
||
err := tx.QueryRowContext(ctx, `
|
||
SELECT MAX(created_at_ms)
|
||
FROM display_user_id_change_logs
|
||
WHERE user_id = ? AND change_type = ?
|
||
`, command.UserID, "default_change").Scan(&lastChangedAt)
|
||
if err != nil {
|
||
return err
|
||
}
|
||
if lastChangedAt.Valid && command.ChangedAtMs-lastChangedAt.Int64 < command.CooldownMs {
|
||
// 仍在冷却期内时拒绝修改默认短号。
|
||
return xerr.New(xerr.DisplayUserIDCooldown, "display_user_id change is cooling down")
|
||
}
|
||
|
||
return nil
|
||
}
|
||
|
||
type displayUserIDLog struct {
|
||
// UserID 是短号变更所属用户。
|
||
UserID int64
|
||
// OldID 是变更前短号。
|
||
OldID string
|
||
// NewID 是变更后短号。
|
||
NewID string
|
||
// OldKind 是变更前来源。
|
||
OldKind userdomain.DisplayUserIDKind
|
||
// NewKind 是变更后来源。
|
||
NewKind userdomain.DisplayUserIDKind
|
||
// ChangeType 区分 default_change、pretty_apply、pretty_expire。
|
||
ChangeType string
|
||
// LeaseID 是靓号相关变更的租约 ID。
|
||
LeaseID string
|
||
// Reason 是操作原因。
|
||
Reason string
|
||
// OperatorID 是操作者，系统任务可为空。
|
||
OperatorID int64
|
||
// RequestID 是入口请求或任务 ID。
|
||
RequestID string
|
||
// CreatedAtMs 是日志创建时间。
|
||
CreatedAtMs int64
|
||
}
|
||
|
||
func insertDisplayUserIDChangeLog(ctx context.Context, tx *sql.Tx, item displayUserIDLog) error {
|
||
// 所有短号变更都写审计日志，便于追踪默认号和靓号覆盖历史。
|
||
_, err := tx.ExecContext(ctx, `
|
||
INSERT INTO display_user_id_change_logs (user_id, old_display_user_id, new_display_user_id, old_display_user_id_kind, new_display_user_id_kind, change_type, lease_id, reason, operator_user_id, request_id, created_at_ms)
|
||
VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
|
||
`, item.UserID, item.OldID, item.NewID, string(item.OldKind), string(item.NewKind), item.ChangeType, nullableString(item.LeaseID), item.Reason, nullableOperator(item.OperatorID), item.RequestID, item.CreatedAtMs)
|
||
return err
|
||
}
|