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👩‍🚀 Prism: Interactive Northern Lights Canvas Lab Page - #1273

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prism/aurora-canvas-lab-page-5179281228313532805

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@alehar9320

@alehar9320 alehar9320 commented Sep 12, 2026 •

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Injected an interactive Northern Lights 2D canvas lab page at /lab with math utilities, Vitest unit test coverage, mobile adaptive particle density, prefers-reduced-motion compliance, keyboard controls, and zero-leak page teardown.


PR created automatically by Jules for task 5179281228313532805 started by @alehar9320

Summary by CodeRabbit

  • New Features

    • Added an interactive Northern Lights canvas experience with animated aurora waves and drifting particles.
    • Canvas visuals respond to pointer movement and adapt to different screen sizes.
    • Added pause and resume controls using a button, Space, or Enter.
    • Supports reduced-motion preferences for a more comfortable experience.
    • Improved rendering across high-density displays.
  • Documentation

    • Added guidance covering animation behavior, accessibility, responsiveness, and performance considerations.

- Add pure TypeScript aurora math utilities (clampDpr, calculateAuroraWave, lerpRgb) in src/utils/aurora-math.ts
- Add comprehensive Vitest unit tests in src/utils/aurora-math.test.ts
- Create interactive Northern Lights 2D canvas laboratory route at src/pages/lab/index.astro
- Add mobile particle scaling, prefers-reduced-motion fallback, keyboard accessibility controls, and zero-leak lifecycle teardown on astro:before-swap
- Document technical insights and benchmarks in .Jules/prism.md

Co-authored-by: alehar9320 <5390430+alehar9320@users.noreply.github.com>
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alehar9320 temporarily deployed to prism/aurora-canvas-lab-page-5179281228313532805 - astro-cloudflare-personal-website-web-service PR #1273 September 12, 2026 12:33 — with Render Destroyed
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Status Name Latest Commit Preview URL Updated (UTC)
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coderabbitai Bot commented Sep 12, 2026 •

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Review Change StackReview Change Stack

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info
⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Advanced

Run ID: 7a41ecfb-c460-40e3-90c8-1045b202f4ef

📥 Commits

Reviewing files that changed from the base of the PR and between 903d441 and 4e64a38.

📒 Files selected for processing (4)
  • .Jules/prism.md
  • src/pages/lab/index.astro
  • src/utils/aurora-math.test.ts
  • src/utils/aurora-math.ts

📝 Walkthrough

Walkthrough

Adds a Northern Lights interactive canvas lab with reusable math utilities, responsive particle rendering, pointer interaction, keyboard-accessible pause controls, reduced-motion handling, lifecycle cleanup, and Vitest coverage.

Changes

Aurora canvas lab

Layer / File(s) Summary
Aurora math utilities and tests
src/utils/aurora-math.ts, src/utils/aurora-math.test.ts
Adds device-pixel-ratio clamping, wave calculation, RGB interpolation, RGBA formatting, and tests for each utility.
Canvas page and aurora rendering
src/pages/lab/index.astro
Adds the lab layout, canvas initialization, responsive sizing, three wave ribbons, drifting particles, gradients, and scoped styles.
Controls and lifecycle cleanup
src/pages/lab/index.astro, .Jules/prism.md
Adds pointer interaction, button and keyboard pause controls, reduced-motion handling, event wiring, cleanup on page transitions and page hide, and implementation notes.

Estimated code review effort: 3 (Moderate) | ~25 minutes

Change: Feature

Sequence Diagram(s)

sequenceDiagram
  participant Visitor
  participant initAuroraLab
  participant auroraMath
  participant Canvas
  Visitor->>initAuroraLab: Move pointer or activate pause control
  initAuroraLab->>auroraMath: Calculate wave height and colors
  auroraMath-->>initAuroraLab: Return rendering values
  initAuroraLab->>Canvas: Draw ribbons and particles
  initAuroraLab->>initAuroraLab: Schedule or cancel animation frame
Loading
✨ Finishing Touches 💡 1
🛠️ Fix failing CI checks 💡
  • Create stacked PR
  • Commit on current branch
📝 Generate docstrings
  • Create stacked PR
  • Commit on current branch
🧪 Generate unit tests (beta)
  • Create PR with unit tests
  • Commit unit tests in branch prism/aurora-canvas-lab-page-5179281228313532805

Warning

Some tools did not complete. Review the errors below.

🔧 ESLint

If the error stems from missing dependencies, add them to the package.json file. For unrecoverable errors (e.g., due to private dependencies), disable the tool in the CodeRabbit configuration.

src/pages/lab/index.astro

typescript-eslint does not support TS 7.0.
Please see https://devblogs.microsoft.com/typescript/announcing-typescript-7-0/#running-side-by-side-with-typescript-6.0 to run typescript-eslint using the TS 6 API.
See also typescript-eslint/typescript-eslint#10940 for tracking typescript-eslint's support for TS >=7.1
typescript-eslint does not support TS 7.0.
Please see https://devblogs.microsoft.com/typescript/announcing-typescript-7-0/#running-side-by-side-with-typescript-6.0 to run typescript-eslint using the TS 6 API.
See also typescript-eslint/typescript-eslint#10940 for tracking typescript-eslint's support for TS >=7.1

Oops! Something went wrong! :(

ESLint: 10.10.0

Error [ERR_INTERNAL_ASSERTION]: This is caused by either a bug in Node.js or incorrect usage of Node.js internals.
Please open an issue with this stack trace at https://github.com/nodejs/node/issues

at assert (node:internal/assert:11:11)
at loadCJSModuleWithModuleLoad (node:internal/modules/esm/translators:323:3)
at ModuleWrap.<anonymous> (node:internal/modules/esm/translators:231:7)
at ModuleJob.run (node:internal/modules/esm/module_job:437:25)
at async node:internal/modules/esm/loader:639:26
at async dynamicImportConfig (/.eslint-tmp/node_modules/eslint/lib/config/config-loader.js:185:17)
at async loadConfigFile (/.eslint-tmp/node_modules/eslint/lib/config/config-loader.js:275:9)
at async ConfigLoader.calculateConfigArray (/.eslint-tmp/node_modules/eslint/lib/config/config-loader.js:594:23)
at async `#calculateConfigArray` (/.eslint-tmp/node_modules/eslint/lib/config/config-loader.js:369:19)
at async Promise.all (index 0)
src/utils/aurora-math.test.ts

ESLint skipped: the matched ESLint configuration already failed (config-incompatibility).

src/utils/aurora-math.ts

ESLint skipped: the matched ESLint configuration already failed (config-incompatibility).


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@alehar9320-bot

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HARD ABORT — Prism Northern Lights /lab aurora canvas farm restack of #1259/#1239/#1217/#1193/#1172/#1148/#1130/#969/#921/#878/#863/#826/#776/#758/#609.

Standing lock: No Prism onto main. No /lab/* onto main.

Closing unmerged as draft. Do not Jules-restack. Do not reopen as Jules. Soft dims N/A.

Overlay 69ca717. Hire LinkedIn. Stay off #800.

@alehar9320-bot
alehar9320-bot marked this pull request as draft September 12, 2026 12:34
@codecov

codecov Bot commented Sep 12, 2026 •

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Bundle Report

Changes will decrease total bundle size by 562.07kB (-48.89%) ⬇️. This is within the configured threshold ✅

Detailed changes
Bundle name Size Change
molecular-mars-esm 587.7kB -562.07kB (-48.89%) ⬇️

Affected Assets, Files, and Routes:

view changes for bundle: molecular-mars-esm

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@codecov

codecov Bot commented Sep 12, 2026

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ All tests successful. No failed tests found.

📢 Thoughts on this report? Let us know!

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prism/aurora-canvas-lab-page-5179281228313532805 - astro-cloudflare-personal-website-web-service PR #1273 — 4e64a385 Deployed Sep 12, 2026 by alehar9320
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