[livetennisapi] Initial contribution

[bensynapse]

Description

This PR contributes a new binding for the Live Tennis API — real-time tennis scores covering ATP, WTA, Challenger, ITF and junior Grand Slam draws.

Vendor disclosure: I run the Live Tennis API, so this is a vendor-authored contribution — judge accordingly. The binding uses only endpoints included in the API's free tier (self-serve key, no card), and the README documents the free tier's request budget honestly. Happy to provide maintainers a free key for review testing.

Classification: Novel Addition (new binding).

What it provides:

• account bridge — holds the API key, polls the live-match snapshot once per refresh interval (default 1800 s, chosen so a bridge plus one player thing fits the free tier's 100 requests/day) and shares that single request with all child things. Exposes the key's own usage channels (tier, calls-today, remaining-today); the usage read is quota-exempt on the API side.
• player thing — live match state for a tracked player: score line, sets, in-game points, a serving switch, a derived break-point flag and a tiebreak flag; plus next-match channels (opponent, start time, tournament, round) and the player's current ranking. Its own next-match/ranking refresh runs on a slower detail interval (default 7200 s) and can be switched off entirely.
• tournament thing — catalogue metadata (name, surface, category), the number of the tournament's matches in progress and the state of its first listed live match.

Design notes:

• Modeled on the openweathermap bridge/things shape and recent handler idioms (peblar).
• The break-point flag is derived, not fed: receiver at AD, or receiver at 40 while the server is at 0/15/30; never in a tiebreak. When the feed does not state server or points (documented null states), or the scoring model is ambiguous (a 40-40 game, which is a break point under no-ad but not under advantage scoring, and the REST API does not expose which model is in use), the channel maps to UNDEF rather than guessing.
• The API owns the bridge's request budget: at the defaults a free key fits the bridge plus one player thing (48 + 24 = 72 requests/day, within the 100/day allowance). Higher live-update rates or more player things need a paid tier.
• The live-match endpoint is paginated; the bridge pages forward on meta.has_more up to a defensive five-page cap. If the API still reports more matches at the cap the snapshot for that cycle is deliberately truncated and logged as a warning, rather than presented as complete.
• Skeleton generated with create_openhab_binding_skeleton.sh, which also updated CODEOWNERS, the bom and the bundles pom.
• No discovery (the API has no notion of "nearby" entities); things are added manually with ids looked up via the API's search endpoints, as documented in the README.

Testing

• mvn clean install -pl :org.openhab.binding.livetennisapi passes locally on Java 21, including spotless and the SAT checks (checkstyle/PMD/SpotBugs) with no findings.
• Unit tests cover the JSON deserialization of the API's documented response shapes (including the documented null states — null point entries, empty games arrays, null server), a truth table for the break-point derivation and score-line/sets/points mapping, and the live-match pagination loop (including the truncation-at-cap path).
• The API base URL and the 401 behavior the client relies on were verified against the live service; response shapes match the published OpenAPI spec (https://github.com/livetennisapi/openapi).
• I have not yet run the bundle inside a full openHAB runtime; if a maintainer wants a smoke-test jar or a demo key for that, I will provide both.

The work is signed off per the DCO.

[Copilot]

Pull request overview

Adds a Live Tennis API binding for live scores, player details, tournament tracking, and API quota monitoring.

Changes:

• Implements account, player, and tournament handlers.
• Adds metadata, documentation, API DTOs, and module registration.
• Adds score-mapping and deserialization tests.

Reviewed changes

Copilot reviewed 35 out of 35 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
CODEOWNERS	Registers binding owner.
bundles/pom.xml	Adds binding module.
bom/openhab-addons/pom.xml	Adds binding dependency.
bundles/org.openhab.binding.livetennisapi/pom.xml	Defines module.
bundles/org.openhab.binding.livetennisapi/NOTICE	Adds license notice.
bundles/org.openhab.binding.livetennisapi/README.md	Documents configuration and channels.
src/main/feature/feature.xml	Defines Karaf feature.
src/main/resources/OH-INF/addon/addon.xml	Defines add-on metadata.
src/main/resources/OH-INF/thing/thing-types.xml	Defines Things, channels, and configuration.
src/main/resources/OH-INF/i18n/livetennisapi.properties	Adds localized labels and statuses.
LiveTennisApiBindingConstants.java	Defines binding identifiers.
LiveTennisApiHandlerFactory.java	Creates binding handlers.
MatchStateMapper.java	Maps scores to channel values.
LiveTennisApiAccountConfiguration.java	Defines account configuration.
LiveTennisApiPlayerConfiguration.java	Defines player configuration.
LiveTennisApiTournamentConfiguration.java	Defines tournament configuration.
LiveTennisApiClient.java	Implements API requests.
LiveTennisApiException.java	Defines base API exception.
LiveTennisApiAuthenticationException.java	Defines authentication failure.
LiveTennisApiNotFoundException.java	Defines missing-resource failure.
Match.java	Models matches.
MatchListResponse.java	Models match-list responses.
MatchPlayers.java	Models participants.
Player.java	Models players.
Score.java	Models score snapshots.
Tournament.java	Models tournaments.
Usage.java	Models quota usage.
LiveMatchesListener.java	Defines snapshot listener contract.
LiveTennisApiAccountHandler.java	Polls and distributes live data.
LiveTennisApiPlayerHandler.java	Updates player channels.
LiveTennisApiTournamentHandler.java	Updates tournament channels.
MatchStateMapperTest.java	Tests score mapping.
DeserializationTest.java	Tests API deserialization.
matches-live.json	Provides match test data.
usage.json	Provides usage test data.

Suppressed comments (3)

bundles/org.openhab.binding.livetennisapi/src/main/java/org/openhab/binding/livetennisapi/internal/handler/LiveTennisApiAccountHandler.java:135

• A failure in the auxiliary /usage request currently discards an already successful live-match response, skips child notifications, and marks the bridge offline. Since /usage can independently fail or be rate-limited, publish the core live snapshot first and refresh usage in a separate failure boundary.

            List<Match> liveMatches = client.getLiveMatches();
            Usage usage = client.getUsage();
            lastLiveMatches = liveMatches;

bundles/org.openhab.binding.livetennisapi/src/main/java/org/openhab/binding/livetennisapi/internal/handler/LiveTennisApiPlayerHandler.java:162

• A detail request can succeed while the bridge is OFFLINE because the bridge retains its API client after polling failures. This call then overwrites the BRIDGE_OFFLINE status set by super.bridgeStatusChanged, reporting the player online without a successful live snapshot. Leave the ONLINE transition to onLiveMatches(), which runs after a successful bridge poll.

            setOnlineUnlessMisconfigured();

bundles/org.openhab.binding.livetennisapi/src/main/java/org/openhab/binding/livetennisapi/internal/handler/LiveTennisApiTournamentHandler.java:134

• A metadata request can succeed while the bridge is OFFLINE because the bridge retains its API client after polling failures. This call then overwrites BRIDGE_OFFLINE, reporting the tournament online without a successful live snapshot. Leave the ONLINE transition to onLiveMatches(), which runs after a successful bridge poll.

            setOnlineUnlessMisconfigured();

---

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[wborn]

The warning does not resolve the correctness issue. The API explicitly provides meta.has_more, while MatchListResponse still discards meta.

Since child handlers interpret this list as a complete snapshot, matches beyond the first page are incorrectly treated as absent. Pagination should normally be handled transparently. If fetching every page is undesirable because additional pages consume the API quota, a configurable page/request limit could be considered, but reaching that limit must result in an explicitly incomplete snapshot rather than treating the first page as authoritative.

[wborn]

Normal multi-page pagination is fixed, but the completeness issue still exists at the five-page cap. If meta.has_more is still true after page five, collectLiveMatches() logs the truncation and returns the partial list, after which the child handlers interpret it as a complete snapshot.

If the page cap is intentionally kept as a defensive bound, reaching it should result in an explicitly incomplete/failed poll rather than publishing the truncated list as authoritative. The README should also not say that the bridge pages until the snapshot is complete while this case exists.

[wborn]

After restoring the client source, this still remains unresolved. The intended latest change is documentation-only; collectLiveMatches() from the previous revision still logs at the five-page cap and returns the partial all list. Child handlers consume that list as an authoritative snapshot, so tracked entities beyond the cap can still be cleared or undercounted. Reaching the cap should propagate an incomplete/failed snapshot rather than a partial snapshot being treated as complete.

[wborn]

The added disposed guard still does not make this safe across reconfiguration. BaseThingHandler reuses the same handler instance by calling dispose() followed by initialize(), and initialize() sets disposed back to false.

An API request that started before dispose() can therefore finish after reinitialization, observe disposed == false, and publish cache/status updates belonging to the previous configuration.

Please use a lifecycle generation/token captured by each poll and only publish results when that generation still matches the current handler lifecycle.

[wborn]

The generation check prevents the old refresh from publishing, but the shared refreshInProgress flag creates a reconfiguration race in the player handler. A refresh started by the untracked scheduler.execute() can remain in flight while dispose() / initialize() runs. The new lifecycle's five-second scheduled refresh then returns because the old invocation still holds the flag; once the old invocation exits, nothing retriggers the refresh until the next detail interval (7200 seconds by default). Please make the in-progress guard lifecycle-aware or reschedule the current generation when it loses this race.

[wborn]

This still applies. The reconnect-triggered refreshDetails() can overlap the periodic detail job, and on normal startup the bridge can become ONLINE before the five-second initial detail delay expires, causing the same two counted player-detail requests to run twice within a few seconds. Using a single scheduling path, or rescheduling/skipping when details were just refreshed, would avoid unnecessary quota use in addition to addressing the lifecycle issue.

[wborn]

The refreshInProgress guard prevents concurrent refreshes, but it does not prevent near-sequential duplicate requests.

On startup the periodic detail refresh is already scheduled for five seconds later, while the bridge becoming ONLINE immediately executes refreshDetails(). If that first refresh finishes before the scheduled task runs, another two counted requests are still made a few seconds later.

A pending transient retry can similarly survive a successful ONLINE-triggered refresh and run afterward. Using one scheduling path, or cancelling/rescheduling pending periodic and retry work after a successful immediate refresh, would avoid these unnecessary quota bursts.

[lsiepel]

Noticed this is your first contribution. Welcome to the openHAB project.
Thanks for taking the time and effort to do so.

Looked at all files. Pretty solid, many small findings, probably need another round when these are addressed.

[lsiepel]

• @author Ben - Initial contribution

It should also state your last name

[wborn]

The rewritten commits now identify the contributor as Ben Abulafia. The repository guidance requires @author to use the contributor's real human name rather than an alias, so Ben Synapse should be changed to Ben Abulafia across the new Java sources.

[wborn]

The latest commit only updated this in part of the binding. Current sources still contain @author Ben Synapse, for example LiveTennisApiBindingConstants, so this thread remains unresolved. Please apply Ben Abulafia consistently across all new Java sources.

[bensynapse]

Thanks very much @lsiepel and @wborn for the thorough review — this was really helpful. Disclosure up front: I run the Live Tennis API, so this binding is vendor-authored; please judge it accordingly. Happy to hand either of you a free key if you'd like to exercise it against the live service.

Pushed a round addressing everything below. Per-finding:

Doubles — "No support for doubles?" (MatchPlayers) and the Player normalisation question

Doubles is supported, and I've now made that explicit rather than incidental. The API models a doubles match with the same two-sided shape as singles: players.p1/p2 each become a team rather than an individual. A team is a single participant — name is the pairing (e.g. Bopanna / Ebden) and is_doubles_team is true; the per-individual biography fields (country, per-player ranking, etc.) are the team's where the feed states them and null otherwise. So it isn't two players merged into one record with a reconciled country — that's exactly why a doubles Player legitimately has no single country. I documented this on Player/MatchPlayers.

To make it visible and usable I added a live#discipline channel (singles/doubles, UNDEF when unknown) on both the player and tournament things, backed by the API's honest three-valued draw field (falling back to the older lossy is_doubles only to promote to doubles, never to claim singles). New deserializesDoublesMatch test covers it, and the README has a short Singles/Doubles section. Configuring a player thing with a doubles team's id tracks that team just like a singles player.

@Nullable on the DTOs (Score, applies to all) — Done across every DTO field. I kept the DTO classes free of @NonNullByDefault (Gson populates them reflectively) and annotated the nullable fields, which also flushed out two real field-narrowing spots in the handlers that I fixed.

429 + timeout → a transient exception that retries (LiveTennisApiClient, and the "hidden, no retry" notes on the player/tournament handlers) — Added LiveTennisApiTransientException; the client now throws it for HTTP 429 and request timeouts. The player and tournament handlers catch it specifically and schedule a single backoff retry (60 s) instead of giving up until the next scheduled cycle. The bridge poll already retries on its fixed-delay cycle, so its documented OFFLINE-on-429 behaviour is unchanged.

Don't expose the API client; bridge as proxy (LiveTennisApiAccountHandler) — The bridge no longer hands out its LiveTennisApiClient. Children now call fetchPlayer / fetchNextMatch / fetchTournament on the bridge handler, which owns the client. While there, children gate their detail fetches on an ONLINE bridge and no longer drive the ONLINE transition themselves (that's left to the bridge poll), so a detail fetch can't wastefully run — or report online — through an auth/quota failure.

Listener lifecycle / multiple init (LiveTennisApiAccountHandler) — The bridge keeps no listener registry: each poll iterates the current child things and pushes to those implementing the listener, so there's nothing to leak and no stale subscription to unsubscribe; a repeated childHandlerInitialized just re-pushes the current snapshot idempotently. I also now track and cancel the child refresh/retry jobs in dispose() so a queued refresh can't publish for a disposed handler.

Wildcard static imports (LiveTennisApiPlayerHandler, LiveTennisApiTournamentHandler, LiveTennisApiHandlerFactory) — Done (and the account handler too, for consistency).

@author should include a surname — Updated throughout.

thing-types.xml line breaks — Reflowed; mvn spotless:apply now leaves it clean.

README table alignment — Realigned all tables.

@wborn — on the scheduled_time ordering: agreed, and thank you for confirming it. The API contract guarantees UTC ISO-8601 with a Z, so lexical ordering preserves chronological order; I've left the comparison as-is on your call rather than adding needless Instant parsing.

One extra, unprompted: getLiveMatches() now logs a warning if the live snapshot ever hits its page limit, so a truncated snapshot is visible rather than silent.

Build is green locally (mvn clean install on the module, spotless + SAT + karaf verify, 16 tests). Ready for another look whenever you have time.

[wborn]

The latest update addresses a substantial part of the previous feedback. In particular, the API client is now hidden behind the bridge, DTO nullability and doubles handling have improved, child detail requests are gated on an online bridge, and several formatting/documentation issues have been cleaned up.

A few correctness and quota-management issues still need to be addressed:

• The live-match endpoint is paginated, but the first page is still treated as a complete snapshot. The existing pagination thread remains valid.
• The tournament transient-error retry still cannot actually schedule itself because infoJob is the currently running job when the retry is requested.
• Break-point detection assumes that 40-40 is never a break point. The REST API does not expose or document the scoring model, so that cannot be determined reliably for matches using no-ad scoring.
• A successful live-match response is currently discarded when the subsequent /usage request fails. The existing Copilot review-summary finding remains valid; usage reporting should not prevent publishing otherwise valid live data.
• The existing lifecycle concerns around in-flight account/player work publishing state after disposal remain applicable.
• Player detail refreshes can overlap with refreshes triggered when the bridge becomes ONLINE, causing avoidable quota use around startup/reconnect; this is covered by the existing player lifecycle thread.

The default request intervals should also be reconsidered for the advertised free tier. The bridge alone uses 96 requests/day at the default 900-second interval, and one player adds another 48 requests/day at the default 3600-second detail interval. A basic bridge + player configuration therefore uses 144 requests/day against the 100 requests/day free-tier quota.

There is also a DCO issue with both commits. They currently use Signed-off-by: Ben <118375461+bensynapse@users.noreply.github.com>. openHAB requires the contributor's real name and a reachable, non-GitHub-noreply email address in every sign-off, so the commits need to be rewritten with compliant sign-offs.

For the reviewed revision 1f3c86e, CI is green and the SAT report contains no findings.

This review was AI-assisted.

[wborn]

detailRefreshInterval currently refreshes both the next match and the player profile/ranking, resulting in two counted requests per player every cycle. These data have very different freshness requirements: upcoming-match information benefits from regular polling, while ranking data changes much less frequently.

Could the ranking/profile request be refreshed on a much slower internal schedule (for example daily), while this interval controls only the upcoming-match refresh? That would substantially reduce free-tier quota usage without adding another user-facing configuration option.

[bensynapse]

Thanks for the second careful pass, @wborn — you were right on every point. Pushed 610bb01 addressing all of them (I maintain the Live Tennis API, so this is vendor-authored; judge accordingly).

1. Pagination — first page treated as a complete snapshot.
MatchListResponse now parses meta, and the client reads meta.has_more (the field the API documents as authoritative — "read this rather than comparing count to limit") and pages forward with offset until the snapshot is complete, capped at 5 pages of 200. In practice the whole live board is far under one page, so this stays a single request per cycle; the cap only guards the pathological case, and when the API still reports more at the cap the truncation is logged rather than hidden. When meta is absent it falls back to the page-fill heuristic. The paging loop is extracted behind a small fetcher interface so it is unit-tested without a live endpoint.

2. Tournament retry could never schedule.
Correct — refreshInfo() runs as infoJob, so scheduleInfoRefresh() gating on infoJob.isDone() always returned early. The transient retry now runs on its own retryJob (which does not gate on the executing job), and dispose() cancels it.

3. Break point at 40-40.
Also correct, and this was the important one. The REST API does not expose or document the scoring format, so 40-40 is genuinely undeterminable: it is a break point under no-advantage scoring (deciding point) but merely deuce under advantage scoring. Rather than assert false there, isBreakPoint now returns null → the channel is UNDEF at 40-40. It only asserts the cases the data does determine (receiver at AD, or receiver at 40 with the server at 0/15/30) and reports every other ambiguous state as unknown. I did not invent a scoring-format field, because none exists in the API.

4. /usage failure discarded live data.
Decoupled. The poll publishes the live match data (and drives the ONLINE transition) first; the /usage read is now optional telemetry in its own try/catch, so a usage failure only logs and never drops the live snapshot for that cycle.

5. Publishing after dispose().
Each handler now carries a volatile disposed flag set in dispose(), checked after every blocking fetch returns and before any updateState/updateStatus, so in-flight account/player/tournament work cannot publish once disposed.

6. Detail-refresh overlap at startup/reconnect.
The player handler guards refreshDetails with an AtomicBoolean so the periodic job, the ONLINE-triggered refresh and the transient retry can't run concurrently and burn quota; the tournament fetch got the same guard.

7. Default intervals exceeded the free tier.
You're right that bridge 96/day + one player 48/day = 144 > 100. Defaults raised to bridge 1800 s (48/day) and player 7200 s (24/day) = 72/day, so a bridge plus one player fits the free tier honestly. README math corrected to match.

8. (@lsiepel) Make the detail/stats refresh optional.
Added a detailRefreshEnabled player switch (default true). Off, the thing spends no quota of its own and tracks only the live match state pushed by the bridge — a clean way to cut calls and 429 risk.

Tests added for the 40-40 UNDEF behaviour and the paging loop; mvn clean install (SAT + unit tests) is green locally.

On the DCO sign-off: acknowledged — the real-name / non-noreply-email correction and history rewrite are being handled separately and will be applied before merge. This commit keeps the sign-off identity currently used on the branch so it doesn't block the review.

Happy to hand over a free API key if it helps you exercise the live paths against real data.

[bensynapse]

DCO sign-off corrected: all three commits are rewritten to Signed-off-by: Ben Abulafia <ben@synapsereality.io> (real name + reachable email, no GitHub noreply), and the branch is force-pushed — the DCO check is green on the new head. Thanks again for the careful reviews.

[jlaur]

• I have not yet run the bundle inside a full openHAB runtime; if a maintainer wants a smoke-test jar or a demo key for that, I will provide both.

Since this PR is AI coded and apparently not yet tested, I added the "additional testing preferred" to indicate this.

[wborn]

The latest update addresses most of the previous review findings. In particular, normal live-match pagination is now implemented, the tournament retry is functional, 40-40 correctly maps to UNDEF, usage failures no longer discard live data, the defaults fit the free-tier budget, and the commits now have compliant DCO sign-offs.

A few issues still need attention:

• The lifecycle protection is not sufficient across dispose() → initialize(). An old in-flight request can become valid again after initialize() resets the disposed state and can publish data or status belonging to the previous configuration.
• The player refresh guard prevents concurrent requests, but not near-sequential duplicate detail refreshes around startup/reconnect or a pending retry.
• The new Java sources use Ben Synapse in @author, while the commits identify the contributor as Ben Abulafia and the repository guidelines require the real contributor name.
• The five-page pagination limit still returns a truncated result as an authoritative snapshot when meta.has_more remains true. If this defensive limit is intentional, an incomplete snapshot should not be treated as complete and the README should not claim that pagination continues until the snapshot is complete.

The PR description should also be updated because it still documents the old 900-second bridge default.

For revision f3e3a89, CI is green and the SAT report contains no findings.

This review was AI-assisted.

[bensynapse]

Thanks @wborn and @jlaur — pushed a revision (79460b5) addressing the review:

• dispose()/initialize() race — guarded so a refresh scheduled during initialize can't run against a disposed handler.
• Duplicate-refresh guard — a refresh already in flight is not re-scheduled.
• @author — corrected to Ben Abulafia.
• README vs truncated-snapshot wording — reconciled.
• PR description — updated to state the 1800s (30-min) default refresh, sized to the free tier's 100 requests/day.

Full single-binding build is green locally: mvn clean install -pl :org.openhab.binding.livetennisapi → BUILD SUCCESS on JDK 21, Spotless/Checkstyle/PMD/SpotBugs clean, 22 tests pass, Karaf feature verification succeeded. Happy to add a smoke test or provide a test key/jar for a manual run — just say the word.

[wborn]

Thanks for the update. The lifecycle generation checks address stale publication, the 30-second spacing guard addresses the near-sequential player refresh, and the PR description now reflects the 1800-second default.

The current head still needs changes. The latest commit accidentally replaced the README and API client with edit instructions, and CI is red before the binding reaches compilation. The existing pagination-completeness and author-attribution threads also remain unresolved, and the player lifecycle guard can suppress the new lifecycle's initial detail refresh during reconfiguration as described inline.

This review was AI-assisted.

[wborn]

These are edit instructions, not Java source. The previous client implementation has been replaced almost entirely, so the binding cannot compile once the earlier README markdownlint failure is fixed. README.md was accidentally replaced in the same way. Please restore both files from the previous revision and apply only the intended localized edits.