Stats handlers reused the single bounded update context for both upstream
price fetches and the final Telegram reply, while per-upstream HTTP timeouts
equalled the whole-handler budget. One slow upstream drained the deadline and
the reply failed with "context deadline exceeded" (observed on /stock_stats).
- add chathelper.FetchContext: fetches run under a child context that reserves
a tail of the deadline for the reply, which is sent on the original context
- cap kbs/coin/gold/vnappmob HTTP timeouts at 3s so one hung upstream cannot
consume the reply budget
- fetch held stock/coin prices concurrently (bounded) so total latency tracks
the slowest single fetch instead of their sum; per-symbol failures degrade to
a "no price" line and the summary still sends
The CF→AWS data migration (closed 2026-05-16) is long done and the
tooling isn't wired into any production path. Remove the one-shot binary,
its support package, and the migration runbook.
In live code, replace 'JS-parity' / 'same shape as JS' / 'cross-runtime
KV migration' comments with the real, stable reason for each behavior
(wire-format invariant, null-vs-zero distinction, CloudWatch alarm field
name, etc.). 24 files touched across lolschedule, loldle, wordle, twentyq,
trading, misc, util, server, metrics, ai, keylock.
- delete cmd/migrate_cf_data/
- delete internal/migration/
- delete docs/cf-to-aws-migration-runbook.md
Concurrency
- lolschedule: serialize subscriber Get→mutate→Put via state.subscribersMu;
the single-slot list was previously losing writes under concurrent
/lolschedule_subscribe.
- trading: PriceClient memoises its default *http.Client so /trade_stats
reuses TLS connections across held tickers.
Observability
- server/log_middleware: defer the req log line and recover panics so a
panicking cron handler still emits the structured req entry CloudWatch
filters on for 5xx alerting.
- server/router (cron): inner recover with cron-name context captures the
panicking job before the middleware's safety net does.
- telegram/webhook: rune-safe truncation in dispatch logs — Vietnamese,
Korean, and emoji previews no longer ship as garbled bytes.
- lolschedule/api_client: same rune-safe fix for error-body log truncation.
- telegram/webhook: gate the post-recover WriteHeader(200) so a panicking
handler that already touched w doesn't trigger superfluous-WriteHeader.
Correctness
- twentyq: clearGame error during solved-relaunch is logged instead of
silently swallowed (was a permanent deadlock vector on KV failure).
- misc /mstats: KV read failure replies "Could not load stats. Try again
later." to the user instead of returning into the dispatcher; matches the
pattern other modules use.
- migrate_cf_data trading-audit-dump: surface f.Close error so a truncated
JSONL never passes silently as a complete audit dump.
Operator ergonomics
- migrate_cf_data (all 4 subcommands): signal.NotifyContext for SIGINT /
SIGTERM. Ctrl-C mid-Scan now propagates cleanly instead of leaving a
half-converted DynamoDB table.
- ai/ratelimit: doc the Lambda-recycle memory bound to match keylock.Map
so a future reviewer doesn't re-flag the unbounded map.
I/O-changing (user-approved)
- lolschedule daily push auto-prunes subscribers whose Telegram error
matches a terminal marker (blocked / deactivated / chat gone). Transient
errors keep the chat on the list. Subscribe message updated to mention
the auto-cleanup.
- twentyq seed pool grown 50 → 178; repeat-collision threshold moves from
~9 plays to ~17 (birthday paradox).
- util /info flipped Public → Protected — chat/thread/sender IDs are no
longer enumerable by every group member.
- cmd/server WriteTimeout 6min → 75s (cron 60s + 15s slack). No-op on
Lambda; matters only for local non-Lambda runs.
- webhook + cron rejection paths drop response bodies (no fingerprintable
text for internet scanners hitting the public Function URL). Status
codes preserved for CloudWatch metrics; structured log lines carry the
rejection reason for operator triage.
Tests added: TestTruncateRunes, TestRunDailyPush_PrunesDeadSubscribers,
TestIsTerminalSendError, TestInfo_DeniedToNonOwner,
TestInfo_DeniedToChannelMessageNoFrom, plus owner-allowed counterparts.
Telegram routes outgoing messages with no message_thread_id to a forum
supergroup's General topic. Commands sent in a topic were being answered
in General. chathelper.Reply / ReplyHTML now take *models.Message and
forward both ChatID and MessageThreadID; help.go SendMessage and
loldle trySendSticker do the same. Adds regression tests asserting the
field is forwarded for forum topics and omitted for private/regular groups.
Rename:
- Go module github.com/tiennm99/miti99bot-go → github.com/tiennm99/miti99bot
- CloudFormation stack miti99bot-aws-port → miti99bot
- Drop "port", "Cloud Run", "GCP", "cutover", "Phase NN" framing from
active code and docs — project reads as canonical AWS-Lambda from now on.
AWS deploy guide + flow fix:
- New docs/deploy-aws-free-tier-guide.md — Ubuntu 24.04 ARM64 onboarding
with project-local venv (pip awscli + sam-cli), SSM secrets via read -s,
idempotent OIDC provider + role creation, $1 budget alarm.
- Drop sam build from the pipeline — provided.al2023 + makefile builder
expects a Makefile in CodeUri (build/lambda/, the output dir), so the
step always fails. sam deploy --template-file template.yaml now reads
the raw template and zips build/lambda/ directly.
- Rollback section rewritten — use continue-update-rollback /
cancel-update-stack / git-SHA redeploy. Drop the broken
--use-previous-template recipe.
- DynamoDB free-tier row corrected (on-demand is 2.5M read / 1M write
request units, not 25 RCU/WCU).
Updated:
- README.md fully rewritten (drops port/legacy framing, lists modules,
points new users at the free-tier guide).
- aws/README.md retitled "AWS account setup", phase numbers stripped.
- Makefile / .github/workflows/deploy.yml — sam deploy flow.
- samconfig.toml — stack_name = "miti99bot".
- Go comments — Cloud Run → Lambda, Cloud Scheduler → EventBridge
Scheduler, Cloud Logging → CloudWatch Logs.
- Struct field GCPProject → FirestoreProject (env GOOGLE_CLOUD_PROJECT
unchanged).
Plus advisory reports under plans/reports/ from the code-reviewer +
researcher passes that informed the fixes.
Verified: go vet ./..., go build ./..., go test ./... all green.
Removes six modules (loldle-ability/emoji/quote/splash, semantle, doantu)
and prunes the framework deps that were only there to serve them:
- ai.Embedder + Client.Embed + embeddingModel const (semantle only)
- Deps.Embedder + BuildOptions.Embedder
- Deps.Env + Build(env) param + ModuleEnv config field + PHOW2SIM allowlist (doantu only)
- internal/champname package (loldle now owns its lookup helpers directly)
- template.yaml: Phow2simAPIURL parameter + PHOW2SIM_API_URL Lambda env
Active catalog: util, misc, wordle, loldle, lolschedule, twentyq, trading.
go build / vet / test all pass.
- Add new modules: doantu, semantle, twentyq, ai (Gemini integration)
- Update module registry with new command registration
- Update tests and documentation for module system
- Update README with new module references
Phase 5 of the 2026-05-09 review remediation plan. Closes the
handler-layer test gap (5 modules at 0% coverage in the audit) and
ends the storage-package's CI t.Skip on Firestore emulator tests.
- internal/testutil: Update fixture builders (NewPrivateMessage,
NewGroupMessage, NewSupergroupMessage, NewChannelMessage) plus a
RecordingBot that wraps the real go-telegram/bot.Bot with an
httptest server. The bot library hits the test server instead of
Telegram; multipart form fields are captured per call. Tests assert
on Sent() / LastSent() / AssertSentText().
- Handler tests added: misc (4), util (7), wordle (10), loldle (9),
loldleemoji (8). Cover happy paths, error paths, auth gates,
group-vs-private subject keying, KV side effects.
- Coverage 44.7% -> 69.8% (verified via -coverprofile). All packages
now report coverage in CI output.
- CI: ci.yml installs cloud-firestore-emulator beta component and
starts it on localhost:8090 before go test. Sets
FIRESTORE_EMULATOR_HOST + GOOGLE_CLOUD_PROJECT env so the storage
package's emulator-gated tests execute instead of skipping.
go test -race -count=1 ./... clean across all 15 packages locally.
Phase 3 of the 2026-05-09 review remediation plan. Eliminates the
helper drift (subjectFor / argAfterCommand / nowMillis / reply /
replyHTML / winRate) that previously lived in 3-4 modules, plus the
loldle-specific normalize / findChampion / findByExactName.
- internal/modules/util/chathelper: SubjectFor, ArgAfterCommand,
NowMillis, Reply, ReplyHTML, WinRate. Single canonical SubjectFor
shape (group/supergroup -> chat ID, else user ID); WinRate uses
math.Round to match JS Math.round (the truncation drift caught in
Phase 5b/5c).
- internal/champname: Normalize + generic Find[T] / FindByExactName[T]
with name-extractor closure. Loldle and loldle-emoji both consume
via Champion / EmojiChampion.
Migrations: wordle, loldle, loldle-emoji, misc, util/info,
util/stickerid. Module-local lookup.go + normalize.go in loldle and
loldle-emoji deleted.
go test -race -count=1 ./... clean across all 12 packages. Net ~290
lines removed across handler files.
Phase 5a of go-port-cloud-run plan: port first 2 of 4 modules (wordle/loldle
deferred to later phase). Port util.go, info.go, help.go, stickerid.go and
misc.go with tests. /help renders registry view; /info exposes chat/thread/
sender ids; /stickerid (private) returns bot-scoped file_ids; /ping writes
last_ping KV ms-epoch JSON for byte-parity, /mstats reads it, /fortytwo is
easter egg.
Registry-pointer-in-Deps required for /help to access module registry—pointer
captured at factory time, stable post-Build. Static factory catalog moved from
modules pkg to cmd/server to break import cycle. Code-review fixes applied in
same session: /info nil-deref guard, KV wire-format parity.
tiennm99