feat(stream): freeze a dormant pair's DM, and unfreeze it when they book again - #1303
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…ook again The last piece of #1270's scope. Nothing has ever ended a direct-message channel: `syncUserEventChannels` reconciles membership but no stage freezes or deletes a DM, so channel count and membership grow without bound on a product billed per monthly active user, and there is no retention answer for a compliance review. ## Dormancy is a property of the PAIR DM ids are keyed on the pair (`dm-<a>-<b>`), never on an appointment, and `DM_ELIGIBLE_STATUSES` deliberately includes `COMPLETED` so a finished booking keeps the conversation open. A per-appointment trigger would therefore freeze a live relationship the moment one of its bookings completed. So the job groups by CHANNEL — the id is a function of the pair AND the funding context, so one pair legitimately holds a personal `dm-` channel and a separate `dmo-` per org — and measures against the latest slot across every booking that channel covers. Ninety days, not the event stage's seven. An event ends on a schedule and its chat has a natural tail; a consulting relationship does not, and a fortnight between sessions is ordinary. Deletion follows at the org's `chatRetentionDays`. ## The unfreeze is the part that makes it safe An event never resumes, so a frozen event channel stays frozen correctly. A pair does resume. Without a reversal, the first thing a returning consultee would find is a channel they cannot post in — and because Stream grants `use-frozen-channel` to no role, with no error text explaining why. Freezing without unfreezing would be a worse bug than never freezing. So an active-but-stamped pair is unfrozen, FIRST and outside the per-run budget: a frozen channel belonging to an active pair is a live user-facing fault, while a dormant pair staying unfrozen one more day is not. ## Schema `Consultation.chatFrozenAt` and `Subscription.chatFrozenAt` mirror the existing columns on `Webinar` and `Class`, but are read as MAX() across the pair and cleared across all of them — stamping one row would let a second booking report the channel as unfrozen while it was not. `Organization.chatRetentionDays` defaults to 365, split from `streamRecordingRetentionDays` (90) which chat used to borrow. The two are not the same question: a recording is a stored asset with a storage bill, a chat channel is the written record of a professional consultation. Deliberately NOT clamped to a floor — PR #1266 establishes Rule 8(3) as a narrow preservation-for-State-access duty that does not commence until 13 May 2027, so a hard minimum would over-state what binds us. Migration applied to the shared dev database and verified; purely additive, and recorded at prisma/sql/one-off/2026-09-01-add-dm-chat-freeze-ledger-and-chat-retention.sql. `check-db-drift` green, 118/118. ## The freeze says so before it lands `lib/stream/system-message.ts` is the first `sendMessage` wrapper in the repo — nothing anywhere sent a Stream message from the server before. A frozen channel refuses every send with no error a user sees: they type, nothing happens. So the freeze posts a system notice first, and the order is load-bearing, because a message sent after the freeze would itself be refused. ## Also Two chat features were dead code. `client.on("*.**", handler)` registers under the LITERAL string key — verified against the installed SDK, which records `'*.**'` and `'all'` as separate keys and fires only the latter — so the entire live channel-list updater in `ChatSidebar` and every counter in `DebugDialog` have never fired once. The single-argument form is the "every event" listener, which is why `useChatUnreadCount`'s badge updated while the list it points at did not. 351 legacy underscore channels (`webinar_`, `class_`) are declared rather than resolved by accident. They are deliberately NOT added to `MANAGED_CHANNEL_PREFIXES`, which the plan for this work called for: that list makes the reconciler REMOVE a user from any channel carrying the prefix that is absent from the expected set, and the expected set emits `webinar-<id>`, never `webinar_<id>` — so all 351 would be classified stale and their members removed on the owner's next dashboard load. That is #1134 P0-7 exactly. Ran `purge-memberless-dms.ts`: 30 phantom channels deleted, all with zero messages, the 6 message-bearing ones preserved by the script's default. 135 → 105 channels, re-run confirms 0 candidates remain, pre-image on disk. ## Verification 331 suites / 3636 tests green, cold tsc clean, eslint clean. The DM stage goes from no coverage to 12 tests, each proved by disabling the behaviour it pins: removing the unfreeze branch reds 2, sending the notice after the freeze reds 1, measuring dormancy on the oldest booking instead of the newest reds 3. Part of #1280 Closes #1270 Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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| Layer / File(s) | Summary |
|---|---|
DM lifecycle contracts prisma/schema.prisma, prisma/sql/one-off/..., lib/stream-channel-ids.ts, lib/stream/system-message.ts |
The schema stores chat retention and freeze timestamps. Helpers identify legacy event channels and send best-effort Stream system messages. |
DM expiration processing jobs/stream/expire-event-channels.ts |
The job discovers DM pairs, freezes dormant channels, unfreezes active channels, requests deletion after retention, updates successful ledgers, and reports DM metrics. |
DM lifecycle validation __tests__/stream/dm-dormancy-lifecycle.test.ts |
Tests cover dormancy, notices, shared bookings, channel identity, retention safeguards, scan windows, and error isolation. |
Chat event subscriptions
| Layer / File(s) | Summary |
|---|---|
Client event registration components/chat/ChatSidebar.tsx, components/chat/DebugDialog.tsx |
Both components use the Stream SDK single-argument on and off APIs for all-event handlers. |
Estimated code review effort: 4 (Complex) | ~45 minutes
Merge Risk: ⚪ Minimal · up to b1f76
The PR adds lifecycle management for dormant direct-message channels, including unfreezing when activity resumes and configurable chat retention. No actionable merge-blocking risk remains after normal checks and review.
Poem
A rabbit watches channels sleep
Freeze ledgers guard the records deep
New bookings wake the chat once more
Old channels meet retention law
Stream events now hop through the door
🚥 Pre-merge checks | ✅ 3 | ❌ 2
❌ Failed checks (2 warnings)
| Check name | Status | Explanation | Resolution |
|---|---|---|---|
| Linked Issues check | The pull request does not address the coding requirements in directly linked issue #1270, which concern Stream video joining, participant provisioning, media-track cleanup, Join visibility, consent ha… |
Link the pull request to the issue that defines DM lifecycle management, or implement the requirements from #1270 and update the title and scope to match those changes. |
|
| Out of Scope Changes check | The DM freezing, unfreezing, retention, cleanup, schema, migration, system-message, legacy-channel, and event-listener changes are unrelated to the directly linked video-join issue #1270. |
Remove the unrelated DM lifecycle changes from this pull request, or link the correct DM lifecycle issue and document that scope explicitly. |
✅ Passed checks (3 passed)
| Check name | Status | Explanation |
|---|---|---|
| Description Check | ✅ Passed | Check skipped - CodeRabbit’s high-level summary is enabled. |
| Title check | ✅ Passed | The title clearly and concisely describes the primary DM dormancy change, including freezing dormant pairs and unfreezing them after a new booking. |
| Docstring Coverage | ✅ Passed | Docstring coverage is 83.33% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 18 functions across 6 files. (1 skipped: 1 … |
Full details: Linked Issues check
Explanation
The pull request does not address the coding requirements in directly linked issue #1270, which concern Stream video joining, participant provisioning, media-track cleanup, Join visibility, consent handling, and related tests. The provided changes instead implement DM lifecycle management.
Full details: Docstring Coverage
Explanation
Docstring coverage is 83.33% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 18 functions across 6 files. (1 skipped: 1 unsupported.)
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feat/stream-dm-freeze-retention
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Inline comments:
In `@__tests__/stream/dm-dormancy-lifecycle.test.ts`:
- Around line 60-66: Capture the arguments passed to the mocked channel() method
in getStreamChatClient, then update the channel identity test to assert the
frozen channel uses the “messaging” type and orgId, and is not called with
personalId. Keep the existing lifecycle assertions unchanged.
In `@jobs/stream/expire-event-channels.ts`:
- Around line 296-299: Update both capped queries used by loadDmPairs to order
by the activity key used for dormancy, namely the latest appointment slot
endsAt, rather than requestedAt. Ensure runDmStage never performs hard deletion
when either query returns exactly MAX_DM_PAIRS_PER_RUN rows: detect the
truncated result, report an error, and skip deletion for that run.
- Around line 442-444: Update loadOrgChatRetention to collect organization IDs
from both DM-eligible booking queries before loading retention settings, then
add a where filter using those IDs to the prisma.organization.findMany call.
Preserve the existing id and chatRetentionDays selection while avoiding a query
for unrelated organizations.
- Around line 512-520: The delete stage around loadDmPairs and
withStreamCircuitBreaker must avoid reprocessing channels already deleted and
ensure result.deletedDms counts only newly deleted channels. Add a per-pair
deletion marker or filter out bookings whose channels are already beyond
retention, then update the bookkeeping after successful deletion; apply the
equivalent protection to the event deletion stage without changing unrelated
behavior.
- Around line 467-471: Reduce cognitive complexity by extracting runDmStage’s
pair-classification loop into a pure classifyDmPairs(pairs, now) helper
returning the existing three arrays, preserving classification behavior and
making it directly testable. In applyDmFrozen, extract the notice-sending logic
and ledger-writing logic into separate helpers, then reuse them from the
existing flow without changing behavior.
In `@lib/stream/system-message.ts`:
- Line 36: Update the sendMessage call in the system-message implementation to
spread custom before the fixed fields, ensuring text and type cannot override
the required system-message values while preserving other custom properties.
In `@prisma/schema.prisma`:
- Line 1061: Update the chatRetentionDays configuration and its enforcement so
values above the job’s scan window are not silently ignored: either document the
effective 425-day ceiling alongside chatRetentionDays or change the
expire-event-channels lookup, including loadDmPairs, to derive its lookback from
the maximum configured chatRetentionDays rather than a fixed constant.
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📒 Files selected for processing (8)
__tests__/stream/dm-dormancy-lifecycle.test.tscomponents/chat/ChatSidebar.tsxcomponents/chat/DebugDialog.tsxjobs/stream/expire-event-channels.tslib/stream-channel-ids.tslib/stream/system-message.tsprisma/schema.prismaprisma/sql/one-off/2026-09-01-add-dm-chat-freeze-ledger-and-chat-retention.sql
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CodeRabbit round on #1303. Seven findings, all legit, one of them serious. ## The critical one: truncation could destroy a live pair's history Both booking queries cap at `MAX_DM_PAIRS_PER_RUN` and order by `requestedAt`, which is NOT the key dormancy is measured on — that comes from the latest slot `endsAt` across the pair. The two are independent, and a long-running booking is requested once and then generates sessions for years, so it sorts old and is the first thing a full page drops. If a pair keeps one low-activity booking on the page and loses its active one, `lastActivityAt` is computed from the stale row, the pair classifies as past retention, and `hard_delete: true` destroys the chat history of a live consulting relationship. Unrecoverable, and silent — nothing recorded that rows had been dropped. The delete stage is now withheld entirely when either query fills its page, the run is marked unsuccessful, and the held-back count is reported. Freezing still runs, deliberately: an over-eager freeze is undone by the next run's unfreeze branch, and withholding it too would be over-correction. ## And an org above 365 days got no deletion at all The scan window came from `MAX_RETENTION_DAYS` (365) plus margin, while `chatRetentionDays` accepts any value. An org on 500 days had every booking dropped by the bound before it could be classified — silently, and in the direction of keeping personal data forever. The window is now derived from the largest value actually configured across all organizations. ## SonarCloud gate `runDmStage` was cognitive complexity 20 and `applyDmFrozen` 16, against a limit of 15. Extracted `classifyDmPairs` (pure, now directly testable), `announceFreeze` and `writeDmLedger`. Behaviour-preserving. ## The rest `deletedDms` counted requests, not deletions — `deleteChannels` is idempotent and returns a task id, so a pair past retention is re-sent every run until it ages out of the scan window. Renamed `dmDeleteRequests`, which is what the number is. Bounded by the lookback rather than unbounded, so the metric was the defect, not the work. `sendSystemMessage` spread `custom` LAST, so a caller key named `type` could override `type: "system"` — the field the docstring calls load-bearing, because a regular message touches unread counts. Fixed ordering; no caller does this today. The channel-identity test proved nothing: it re-derived both ids from `getDmChannelId` and compared them to each other, which passes even if the job addressed the wrong channel or the wrong Stream type. The mock now captures `channel()` arguments and the test asserts the org channel was frozen and the personal one was not — the failure `lib/stream-channel-ids.ts` records as having gone unnoticed for months. Left as-is with a reason: `loadOrgChatRetention` still reads every organization rather than only those with a booking on the page. It has to — the scan window is derived from the largest configured retention, and narrowing it to the orgs already loaded would make the window depend on the page, which is the same incomplete-input-drives-a-destructive-decision shape as the finding above. 15 DM tests now (was 12), each new guard proved red with it disabled. 331 suites / 3639 tests green, tsc and eslint clean. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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#1302 review. `source` was doing two jobs: reporting how the unfreeze set was determined, and gating ledger retirement. On the union path it reads "derived" because the set is only best-effort complete — but the set still CONTAINS the ledger entries, so `result.source === "ledger"` skipped `retireFrozenChannels` and `FROZEN_CHANNELS` never shrank. Left alone that is not just untidy. The stale set is re-unfrozen on every later OFF transition, spending the 300/min UpdateChannelPartial budget on it, and — since #1303 landed — reopening DM channels the dormancy sweep froze on purpose. Maintenance would silently undo another subsystem's decision. Split the two: `usedLedger` tracks participation, `source` keeps reporting provenance. `srem` on an id the set never held is a no-op, so passing the derived ids through with the ledger ids costs nothing. Also corrects two `withStreamCircuitBreaker` fixtures that simulated Redis's breaker message. They passed only because the guard matches the substring "circuit breaker is OPEN", so they were asserting against a string this path cannot emit. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
…1308) #1302 review. `source` was doing two jobs: reporting how the unfreeze set was determined, and gating ledger retirement. On the union path it reads "derived" because the set is only best-effort complete — but the set still CONTAINS the ledger entries, so `result.source === "ledger"` skipped `retireFrozenChannels` and `FROZEN_CHANNELS` never shrank. Left alone that is not just untidy. The stale set is re-unfrozen on every later OFF transition, spending the 300/min UpdateChannelPartial budget on it, and — since #1303 landed — reopening DM channels the dormancy sweep froze on purpose. Maintenance would silently undo another subsystem's decision. Split the two: `usedLedger` tracks participation, `source` keeps reporting provenance. `srem` on an id the set never held is a no-op, so passing the derived ids through with the ledger ids costs nothing. Also corrects two `withStreamCircuitBreaker` fixtures that simulated Redis's breaker message. They passed only because the guard matches the substring "circuit breaker is OPEN", so they were asserting against a string this path cannot emit. Co-authored-by: Claude Opus 5 <noreply@anthropic.com>




The last piece of #1270's scope. Nothing has ever ended a direct-message channel —
syncUserEventChannelsreconciles membership, but no stage freezes or deletes a DM. So channel count and membership grow without bound on a product billed per monthly active user, and there is no retention answer for a compliance review.Dormancy is a property of the PAIR, not of a booking
DM ids are keyed on the pair (
dm-<a>-<b>), never on an appointment, andDM_ELIGIBLE_STATUSESdeliberately includesCOMPLETEDso a finished booking keeps the conversation open. A per-appointment trigger would freeze a live relationship the moment one of its bookings completed.So the job groups by channel and measures against the latest slot across every booking that channel covers. Grouping by channel rather than by pair matters: the id is a function of the pair and the funding context, so the same two people hold a personal
dm-channel and a separatedmo-one per organization that funded a booking — and an org relationship can end while the personal one continues.Ninety days, not the event stage's seven. An event ends on a schedule and its chat has a natural tail. A consulting relationship does not, and a fortnight between sessions is ordinary — freezing a consultee out of the channel they use to reach their consultant would be a product regression dressed up as hygiene. Ninety days with no booked session at all is a different claim. Deletion follows at the org's
chatRetentionDays.The unfreeze is what makes any of this safe
An event never resumes, so a frozen event channel stays frozen correctly. A pair does resume. Without a reversal, the first thing a returning consultee finds is a channel they cannot post in — and because Stream grants
use-frozen-channelto no role, with no error text explaining why.An active-but-stamped pair is unfrozen first, and outside the per-run budget. A frozen channel belonging to an active pair is a live user-facing fault; a dormant pair staying unfrozen one more day is not. Spending the run's remaining calls on freezes while a returning consultee cannot message their consultant would be the wrong way round.
Shares the job, not a second cron
UpdateChannelPartialis capped at 300/min app-wide. Two crons each pacing to half of it independently could still collide; one job pacing across both stages cannot. So the DM stage runs insideexpire-event-channelsand takes what the event stage left ofMAX_FREEZE_PER_RUN. A heavy event night slows the DM sweep rather than breaching the cap alongside it, and the ledger makes the deferred remainder cheap to resume.Schema
Consultation.chatFrozenAt,Subscription.chatFrozenAtWebinar/Classcolumns, but read asMAX()across the pair and cleared across all of them — stamping one row would let a second booking report the channel as unfrozen while it was not.Organization.chatRetentionDays(default 365)streamRecordingRetentionDays(90), which chat used to borrow.On the split: a recording is a stored asset with a storage bill attached; a chat channel is the written record of a professional consultation. An org may reasonably want to keep the second far longer than the first.
Deliberately not clamped to a floor. The plan for this work called for a hard 365-day minimum on DPDP grounds. PR #1266 — which I read rather than assumed — establishes Rule 8(3) as a narrow preservation-for-State-access duty under the Seventh Schedule that does not commence until 13 May 2027. A hard minimum would over-state what binds us and rule out a shorter-retention tier.
The freeze announces itself before it lands
lib/stream/system-message.tsis the firstsendMessagewrapper in the repo — nothing anywhere sent a Stream message from the server before this.It exists for one specific failure: a frozen channel refuses every send with no error text a user ever sees. They type, nothing happens, there is no visible cause. That is the exact complaint
drain-sessions.tsrecords about the maintenance freeze, and this would have reproduced it at much larger scale. The notice is sent before the freeze, because a message sent after would itself be refused.type: "system", so it does not light up an unread badge for a conversation that has just gone read-only.Two chat features were dead code
client.on("*.**", handler)registers under the literal string key. Verified against the installed SDK rather than taken on trust:So
ChatSidebar's entire live channel-list updater and every counter inDebugDialoghave never fired once. The single-argument form is the "every event" listener — which is whyuseChatUnreadCount's badge updated correctly while the list it points at did not.351 legacy underscore channels — declared, deliberately NOT managed
webinar_…/class_…ids that nothing has minted for months. They were invisible to every mechanism that manages a channel, andgetChannelTypeFromIdresolved them only by falling through to itsteamfallback — the right answer reached by accident, which is the same accident that haddmo-addressing the wrong channel type for months.They are declared as
LEGACY_EVENT_PREFIXESwith anisLegacyEventChannelpredicate, andisEventChannelnow covers them (both callers want that — the virtualized message list and the group-event dialog branch). A one-off sweep with a human reading the list is the right disposal, not automation.Phantom DMs purged
purge-memberless-dms.ts, dry-run then--apply. 30 deleted, all with zero messages; the 6 message-bearing ones preserved by the script's own default, which I verified in the source before running (if (messageCount > 0 && !opts.purgeWithMessages) return null). 135 → 105 channels, and a re-run confirms 0 candidates remain. Pre-image written to.stream-backups/.Verification
tsc --noEmitclean,eslintclean.Part of #1280
Closes #1270
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New Features
Bug Fixes