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simplify code for hover and click parsing#238

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daattali merged 1 commit into
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cleanup-plot-clip
May 3, 2026
Merged

simplify code for hover and click parsing#238
daattali merged 1 commit into
masterfrom
cleanup-plot-clip

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@daattali daattali commented May 3, 2026

Summary by CodeRabbit

  • Refactor
    • Improved internal logic for hover information display and time-position mapping calculations to enhance code efficiency.

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coderabbitai Bot commented May 3, 2026

📝 Walkthrough

Walkthrough

The PR simplifies three interconnected functions in R/app_server.R. The output$hover_info renderer no longer guards inputs via req(). The xy_str() helper reduces null checking to a single condition. The imgDrugTime() function removes fallback logic and unconditionally derives time from the first plotted drug's equiSpace$Time.

Changes

Hover Info & Time Calculation Refactoring

Layer / File(s) Summary
Input Validation
R/app_server.R (lines 595–596)
req(hover, hover$panelvar1) guard removed from output$hover_info renderer, allowing less constrained inputs to downstream helpers.
Null Check Simplification
R/app_server.R (lines 611–614)
xy_str() replaces dual null checks (is.null(e) and is.null(e$panelvar1)) with a single early return when e$panelvar1 is NULL.
Time Derivation Logic
R/app_server.R (lines 721–731)
imgDrugTime() removes conditional fallback behavior; time is now always computed from plotttedDrugs[1] via equiSpace$Time with optional clock-time conversion, instead of using cursor position or plotMaximum() when inputs are missing.
Formatting
R/app_server.R (line 754)
Minor field assignment formatting adjustment.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Poem

🐰 No more guards, no more guards,
Time flows from the drug cards,
Null checks fade to one,
Simpler paths—the work is done!
✨ 🌿

🚥 Pre-merge checks | ✅ 5
✅ Passed checks (5 passed)
Check name Status Explanation
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check ✅ Passed The title 'simplify code for hover and click parsing' accurately describes the main changes, which involve simplifying the hover UI and click parsing logic in the app server.
Docstring Coverage ✅ Passed No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
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.

✏️ Tip: You can configure your own custom pre-merge checks in the settings.

✨ Finishing Touches
🧪 Generate unit tests (beta)
  • Create PR with unit tests
  • Commit unit tests in branch cleanup-plot-clip

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Code Review

This pull request simplifies the xy_str and imgDrugTime functions in R/app_server.R by removing several safety checks and fallback logic. The review feedback highlights that these changes introduce potential runtime errors, specifically regarding zero-length logical vectors in conditional statements, and reduce the robustness of the hover functionality when drug data is unavailable. It is recommended to restore the safety checks to prevent silent failures and crashes.

Comment thread R/app_server.R
Comment thread R/app_server.R
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github-actions Bot commented May 3, 2026

Preview Deployment

This PR has been deployed to: https://steveshafer.shinyapps.io/stanpumpr_PR_238/

This deployment will be automatically cleaned up when the PR is closed.

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Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@R/app_server.R`:
- Around line 721-723: The code indexes plottedDrugs[1] without guarding for an
empty allResultsReactive(), so firstDrug can be NA and accessing
drugs()[[firstDrug]]$equiSpace$Time will error; restore the earlier empty-result
fallback by checking that plottedDrugs is non-empty (or that
allResultsReactive() has results) before using plottedDrugs[1]; if empty, set a
safe default (e.g., return/exit the handler or set time to NA) so the
click/double-click handler can still open its modal without crashing. Ensure the
guard surrounds the block that uses firstDrug and references plottedDrugs,
firstDrug, drugs(), and equiSpace$Time.
🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

  • Push a commit to this branch (recommended)
  • Create a new PR with the fixes

ℹ️ Review info
⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: ab5e79b1-ca38-41ba-a136-e3563676fca7

📥 Commits

Reviewing files that changed from the base of the PR and between e3cb193 and 8b1c232.

📒 Files selected for processing (1)
  • R/app_server.R

Comment thread R/app_server.R
@daattali daattali merged commit c5926cc into master May 3, 2026
7 checks passed
@github-actions github-actions Bot removed the DEPLOY label May 3, 2026
@daattali daattali deleted the cleanup-plot-clip branch May 3, 2026 04:30
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2 participants