fix: heal injuries in real time, including while offline

[Drefvelin]

Summary

• Healing injuries used to count down only while the player was online (the healing tick subtracted healing-tick-interval from each online player's remaining time), so a 48h injury took 48h of playtime.
• TraitInstanceState now stores expiresAtMs, the wall-clock time the duration runs out. Remaining time is derived from it, so every reader (profile GUI, effect fade scaling, roster sync, Surgery's HealingInjuries API) sees real-time values with no other changes.
• InjuryHealingService no longer decrements anything. It removes injuries whose time has run out and refreshes the rest so their effects keep fading. It also stops saving every player file every minute.
• Persistence writes expires-at-ms and still writes duration-remaining-ms, so rolling back to an older jar keeps working. Data saved before this change (only duration-remaining-ms) starts counting from the next load.

Testing

• mvn package: 281 tests pass, including the new TraitInstanceStateTest.
• Tested on TFMCDev (see comment).

🤖 Generated with Claude Code

Summary by CodeRabbit

• Bug Fixes
  • Injury healing progresses in real time, including while players are offline, rather than pausing between healing checks.
  • Saved injury durations continue counting down correctly after a server restart.
  • Expired duration-based traits are removed from inactive characters when they are loaded.
• Documentation
  • Clarified that the healing check interval controls how often healing is processed, while injury durations elapse in real time.

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Advanced

Run ID: f4fbab5b-4031-4712-8447-aa91c9bcae3d

📥 Commits

Reviewing files that changed from the base of the PR and between 9851869 and ab24942.

📒 Files selected for processing (3)

• src/main/java/net/tfminecraft/rpcharacters/database/Database.java
• src/main/java/net/tfminecraft/rpcharacters/objects/RPCharacter.java
• src/test/java/net/tfminecraft/rpcharacters/objects/ExpiredDurationTraitsTest.java

🚧 Files skipped from review as they are similar to previous changes (2)

• src/main/java/net/tfminecraft/rpcharacters/objects/RPCharacter.java
• src/main/java/net/tfminecraft/rpcharacters/database/Database.java

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📝 Walkthrough

Walkthrough

Trait durations now use absolute expiration timestamps. The healing service processes expired injuries during ticks, and database loading supports legacy remaining-duration values. The README and configuration comment state that healing continues in real time while players are offline.

Changes

Injury Duration

Layer / File(s)	Summary
Duration state and persistence src/main/java/net/tfminecraft/rpcharacters/objects/TraitInstanceState.java, src/main/java/net/tfminecraft/rpcharacters/objects/RPCharacter.java, src/main/java/net/tfminecraft/rpcharacters/database/Database.java, src/test/java/net/tfminecraft/rpcharacters/objects/TraitInstanceStateTest.java	Trait state stores expiration timestamps and calculates remaining time against the current or supplied time. Database loading accepts expiration timestamps or legacy remaining durations. Tests cover countdown, expired and unset durations, and overflow saturation.
Healing tick processing src/main/java/net/tfminecraft/rpcharacters/injuries/InjuryHealingService.java, src/main/java/net/tfminecraft/rpcharacters/database/Database.java, src/test/java/net/tfminecraft/rpcharacters/objects/ExpiredDurationTraitsTest.java, README.md, src/main/resources/injuries.yml	The service initializes unset durations, removes injuries with no time remaining, and refreshes characters. Inactive characters have expired duration traits removed during loading. Tests cover expired-trait removal. The README and configuration comment state that healing continues while players are offline.

Priority: ➖ Normal

Estimated code review effort: 3 (Moderate) | ~20 minutes

Change: Bug fix

Merge Risk: ⚪ Minimal · up to ab249

No concrete merge-blocking issue is established. Confirm that offline injury cleanup persists as part of normal validation.

Security Architecture Review

Security architecture risk: 🔵 Low · up to ab249

An injury that expires while a character is offline can briefly remain visible after login and may be extended before cleanup. The demonstrated effect is limited to that character’s injury state; no new external access or privilege path was established.

Retained concerns

• Medium · architecture · inferred: Active characters loaded with an injury that expired offline retain the trait until a later eligible healing tick. During that interval, injury listing can report it at zero duration and the extension API can give it a new deadline, so expiry is not consistently terminal across readers and writers.

Security review details

Security Blast Radius

• inferred — The demonstrated inconsistent state is scoped to an affected character’s injury traits. Evidence does not establish cross-player access or a new service-wide authority path.

Trust Boundaries and Controls

• observed — The injury API obtains the player’s active character through PlayerManager before reading or changing traits. Available evidence does not identify who may invoke that API or establish an attacker-controlled upstream entrypoint.

Resilience and Maintainability Implications

• observed — The next eligible healing tick removes expired online traits, and the removal method deletes their state as well. This limits the stale interval but does not make expiry atomic with loading or API access.

Hardening Proposals

• proposed — Enforce expiry before active-character injury reads and mutations, including extension, so a terminally expired injury cannot be reported as live or assigned a fresh deadline.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 8.33% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 24 functions across 6 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 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 main change: injury healing now occurs in real time, including while players are offline.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches 💡 1

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_{A rabbit checks the clock at dawn,
Expired traits have hopped along.
The hours pass through moonlit nights,
Deadlines keep their time in sight.
Online, offline, the countdown flows,
And rabbit leaves where healing goes.}

_{Comment @coderabbitai help to get the list of available commands.}

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Actionable comments posted: 1

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• 🪄 Fix CodeRabbit comments on this PR

🤖 Prompt to fix review comments

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only still-valid issues, skip the rest with a brief reason, keep changes
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Inline comments:
In @src/main/java/net/tfminecraft/rpcharacters/database/Database.java:
- Around line 997-998: Update the load logic in Database around
setDurationExpiresAtMs to check whether expires-at-ms is already past; remove
the expired duration-bearing trait instead of loading it, while preserving the
existing behavior for unexpired traits so inactive characters are cleaned up
too.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Advanced

Run ID: af388ee6-71a2-4402-91ff-196fbd8ea528

📥 Commits

Reviewing files that changed from the base of the PR and between 483497b and 9851869.

📒 Files selected for processing (7)

• README.md
• src/main/java/net/tfminecraft/rpcharacters/database/Database.java
• src/main/java/net/tfminecraft/rpcharacters/injuries/InjuryHealingService.java
• src/main/java/net/tfminecraft/rpcharacters/objects/RPCharacter.java
• src/main/java/net/tfminecraft/rpcharacters/objects/TraitInstanceState.java
• src/main/resources/injuries.yml
• src/test/java/net/tfminecraft/rpcharacters/objects/TraitInstanceStateTest.java

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