fix(billing): count the usage history window in inclusive days and declare its 400 - #3835
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…clare its 400 The usage history SQL generates one row per date from startDate to endDate inclusive, so the 30-day default returned 31 rows and the cap let a 367-date span through. The default window now covers exactly 30 dates and the cap accepts at most 366, the same counting the gpu breakdown window uses. Both routes declare the 400 they already returned for invalid ranges, and openapi.json, the console-api-types schema and the docs snapshot are regenerated from it. The schema spec restores an unset TZ with vi.unstubAllEnvs instead of writing the string "undefined" into process.env.
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📝 WalkthroughWalkthroughThe usage query schema now applies inclusive UTC date windows, defaults omitted dates to 30 days, and accepts ranges from 1 through 366 days. Tests and API documentation cover the updated behavior and validation errors. ChangesUsage date-window behavior
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: 🔵 Low · up to Usage-history date windows now use inclusive UTC defaults, but related tests can intermittently fail around UTC midnight because they derive expected dates from separate clock reads. This is a bounded test-reliability risk before merge. Suggested reviewers: ✨ Finishing Touches📝 Generate docstrings
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #3835 +/- ##
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+ Coverage 81.42% 81.46% +0.03%
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Files 1241 1244 +3
Lines 33872 33919 +47
Branches 8265 8273 +8
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+ Hits 27581 27632 +51
- Misses 5561 5563 +2
+ Partials 730 724 -6
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Inline comments:
In `@apps/api/src/billing/http-schemas/usage.schema.spec.ts`:
- Around line 43-44: Introduce a reusable setup() helper in the usage schema
spec and update the tests, including the case invoking
GetUsageHistoryQuerySchema.parse, to obtain their inputs and dependencies
through setup() rather than constructing or parsing them directly. Keep the
existing assertions and test behavior unchanged.
- Around line 46-48: Freeze the system clock in both date-default tests before
invoking GetUsageHistoryQuerySchema or capturing setup time, and restore real
timers after each test. Update
apps/api/src/billing/http-schemas/usage.schema.spec.ts lines 46-48 and
apps/api/test/functional/usage.spec.ts line 419 so each test uses one fixed
timestamp for all date calculations.
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apps/api/src/billing/http-schemas/usage.schema.spec.tsapps/api/src/billing/http-schemas/usage.schema.tsapps/api/src/billing/routes/usage/usage.router.tsapps/api/swagger/openapi.jsonapps/api/test/functional/usage.spec.tspackages/console-api-types/src/schema.d.ts
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Looks good — a well-contained, well-tested off-by-one fix.
What was reviewed: the new countInclusiveDays/startOfInclusiveWindow arithmetic in usage.schema.ts (hand-verified the 30-day default window, exactly-366-day acceptance, and 367-day rejection boundary cases); the updated startDate must not be after endDate validation still correctly rejects start > end and now allows start === end; and that usage.router.ts, openapi.json, the docs snapshot, and schema.d.ts are all consistently regenerated with the new descriptions.
Extended reasoning...
Overview
This PR fixes an off-by-one bug in the billing usage-history date-range logic (apps/api/src/billing/http-schemas/usage.schema.ts and the corresponding OpenAPI descriptions in usage.router.ts). It refactors inline date math into named constants (DEFAULT_USAGE_WINDOW_DAYS, MAX_USAGE_WINDOW_DAYS, MS_PER_DAY) and small helper functions (toIsoDate, startOfInclusiveWindow, countInclusiveDays), changes the default window to be exactly 30 inclusive calendar days, caps the range at exactly 366 inclusive days, and updates the validation error message to "startDate must not be after endDate" to reflect that equal start/end is valid. Unit tests, a functional test, the generated openapi.json, the docs snapshot, and console-api-types/schema.d.ts are all updated in lockstep.
Security risks
None identified. This is a date-range validation/formatting change on a read-only billing usage endpoint; there is no new user input surface, no auth/permission logic touched, and no injection vector (the date strings are validated by zod and consumed downstream via parameterized query building, unchanged by this diff).
Level of scrutiny
Moderate scrutiny is warranted since this affects billing/usage numbers shown to users, but the change is narrowly scoped to one schema file plus its generated artifacts, and the math is simple enough to hand-verify. I independently recomputed the boundary cases (30-day default window ending at endDate, exactly-366-day acceptance using the 2024 leap year, and 367-day rejection) and they match the new implementation and test expectations.
Other factors
Test coverage is strong and directly targets the previous bug: new single-day, exactly-366-day, and 367-day cases were added, and the flaky-TZ test was fixed to use vi.stubEnv/vi.unstubAllEnvs instead of writing "undefined" into process.env. All four generated/derivative artifacts (openapi.json, functional test, docs snapshot, schema.d.ts) were checked and are consistent with the source changes. The PR author also flagged an unrelated pre-existing bug in deployment.repository.ts for follow-up rather than folding it into this change, which is a reasonable scope boundary. No CODEOWNERS restriction beyond the general @ akash-network/console team applies here.
Both tests read the wall clock twice: the schema spec compared the parsed endDate against a second new Date(), and the functional spec derived its startDate from a timestamp captured in setup() while the server derived endDate at request time. A UTC midnight between the two reads turned each into a failure. They now run against a fixed instant, and the unit test pins the exact dates at 23:59:59.999Z rather than recomputing them.
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LGTM. Reviewed the inclusive-day math in usage.schema.ts (toIsoDate/startOfInclusiveWindow/countInclusiveDays) against the updated unit and functional test expectations, and confirmed it is byte-for-byte identical to the already-shipped equivalent in gpu.schema.ts (PR #3811). Also checked that openapi.json, console-api-types/src/schema.d.ts, and the docs snapshot are correctly regenerated from the schema description changes, and that the follow-up commit fixes the flaky wall-clock reads coderabbit flagged by pinning fake timers.
Extended reasoning...
Overview
The PR fixes an off-by-one in the GET /v1/usage/history (and /stats) date-range schema: the default 30-day window and the 366-day cap previously used exclusive/Math.ceil semantics inconsistent with the inclusive generate_series SQL behind them. The fix introduces DEFAULT_USAGE_WINDOW_DAYS, MAX_USAGE_WINDOW_DAYS, MS_PER_DAY constants and toIsoDate/startOfInclusiveWindow/countInclusiveDays helpers, updates OpenAPI descriptions/400 docs, and regenerates openapi.json, console-api-types/src/schema.d.ts, and the functional-test docs snapshot accordingly. Test changes update expected dates/counts and add single-day, exactly-366, and 367-day edge cases, plus replace ad hoc process.env.TZ mutation and unpinned new Date() reads with vi.stubEnv/vi.useFakeTimers.
Security risks
None. This is a pure date-arithmetic/validation change in a query schema with no auth, injection, or data-exposure surface. The .refine() still rejects invalid/out-of-range inputs before they reach the SQL layer.
Level of scrutiny
I verified the arithmetic by hand: countInclusiveDays computes (end-start)/MS_PER_DAY + 1, so windowDays >= 1 enforces start <= end and windowDays <= 366 enforces the cap — matching the new "366 dates accepted, 367 rejected" test pairs. startOfInclusiveWindow subtracts windowDays - 1 days from endDate, producing a 30-day inclusive window that matches the updated spec expectations (e.g., endDate=2024-01-31 -> startDate=2024-01-02). I also confirmed the helpers are indeed identical to the already-shipped gpu.schema.ts equivalents from a prior, presumably already-reviewed PR (#3811), which lowers the risk of a novel logic error since the pattern is proven in production. Generated artifacts (openapi.json, schema.d.ts, docs snapshot) are mechanically consistent with the source description changes.
Other factors
The timeline shows coderabbit flagged flaky wall-clock reads in two tests (comparing new Date() captured at two different times, risking a UTC-midnight race); the second commit (test(billing): pin the clock...) directly addresses this via vi.useFakeTimers/vi.setSystemTime, so that concern is resolved. No CHANGES_REQUESTED review or other unaddressed objection is outstanding. The change is small, self-contained, well covered by new edge-case tests, and reuses a known-good pattern, so I'm confident this does not need further human scrutiny.
…clare its 400 (#3835) * fix(billing): count the usage history window in inclusive days and declare its 400 The usage history SQL generates one row per date from startDate to endDate inclusive, so the 30-day default returned 31 rows and the cap let a 367-date span through. The default window now covers exactly 30 dates and the cap accepts at most 366, the same counting the gpu breakdown window uses. Both routes declare the 400 they already returned for invalid ranges, and openapi.json, the console-api-types schema and the docs snapshot are regenerated from it. The schema spec restores an unset TZ with vi.unstubAllEnvs instead of writing the string "undefined" into process.env. * test(billing): pin the clock in the usage window default tests Both tests read the wall clock twice: the schema spec compared the parsed endDate against a second new Date(), and the functional spec derived its startDate from a timestamp captured in setup() while the server derived endDate at request time. A UTC midnight between the two reads turned each into a failure. They now run against a fixed instant, and the unit test pins the exact dates at 23:59:59.999Z rather than recomputing them.
1 participant
Why
/v1/usage/historyand/v1/usage/history/statscount their date window as the gap between the two dates, but the SQL behind them builds the rows withgenerate_series(startDate, endDate), which is inclusive on both ends. A call with no dates therefore returned 31 rows, not the 30 the parameter descriptions promised, and the 366-day cap let a 367-date span through./v1/gpu-breakdownwas modelled on this schema and inherited both defects; #3811 fixed them there and left this route for a follow-up.What
The default window now covers exactly 30 dates ending at
endDate, and the cap accepts at most 366, so2024-01-01to2024-12-31is fine and2024-01-01to2025-01-01is a 400. The two routes declare that 400 in the OpenAPI spec, which they previously described as "Invalid address format" only, and the parameter descriptions say the dates are inclusive and thatendDatedefaults to today in UTC rather than to "today by UTC 23:59:59" (it has always been a::datecast).openapi.json, theconsole-api-typesschema and the docs snapshot are regenerated.The helpers are copied from
gpu.schema.tsbyte for byte so a later refactor can lift them into one shared helper without changing behavior.Not marked BREAKING:
getHistoryStatsdivides its averages by the row count, so a date-less caller now sees averages over 30 days instead of 31, but the only caller in this repo is deploy-web, which always sends both dates and whose picker already caps at 366 inclusive dates.Tests: the schema spec gains single-day, exactly-366 and 367-date cases and restores an unset
TZwithvi.unstubAllEnvsinstead of writing the string"undefined"intoprocess.env; the functional spec expects 30 rows where it expected 31, and both routes get an exactly-366 acceptance case next to the 367-date rejection.Unrelated bug found while reading this code, filed as CON-949 (ref CON-949, not fixed here):
countActiveByOwnerindeployment.repository.tscombinesclosedHeight: nullwithclosedBlock.datetime <= endDate, and that join is NULL for every open deployment. Confirmed against a copy of the production database: an owner with 112 open deployments counts 112 with noendDateand 0 with one, sototalDeploymentson/v1/usage/history/statsis always 0 for deploy-web, which always sends both dates.