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🧹 [Code Health] Refactor ContributionGraph Calendar Logic#49

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refactor-contribution-graph-logic-11887452738226846435
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🧹 [Code Health] Refactor ContributionGraph Calendar Logic#49
is0692vs wants to merge 1 commit intomainfrom
refactor-contribution-graph-logic-11887452738226846435

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@is0692vs is0692vs commented Mar 6, 2026

🧹 [Code Health] Refactor ContributionGraph Calendar Logic

🎯 What: The logic for processing calendar data into weeks and months has been extracted from the ContributionGraph component into a new helper function processCalendarData.
💡 Why: The component's rendering logic was cluttered by the data grouping computation. Extracting it into a pure function outside the component scope improves readability and makes the component's purpose clearer.
Verification: Verified by running npm test and npm run lint. The tests passed and the code formatted successfully. Also performed a local manual visual code review to confirm no functional changes were made.
Result: The ContributionGraph component is now simpler and easier to maintain.


PR created automatically by Jules for task 11887452738226846435 started by @is0692vs

Extracted the complex data grouping and processing logic for the contribution calendar
into a separate `processCalendarData` helper function in `ContributionGraph.tsx`.
This improves the readability and maintainability of the component's rendering block.

Co-authored-by: is0692vs <135803462+is0692vs@users.noreply.github.com>
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Summary of Changes

Hello, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request focuses on improving the code health of the ContributionGraph component by separating its data processing responsibilities from its rendering logic. This refactoring enhances the component's clarity and maintainability without introducing any functional changes, ensuring a more robust and understandable codebase.

Highlights

  • Code Refactoring: The complex logic responsible for processing calendar data into weeks and months has been extracted from the ContributionGraph component into a new, dedicated helper function named processCalendarData.
  • Improved Readability and Maintainability: By moving the data grouping computation out of the component, the ContributionGraph component's rendering logic is now cleaner and its purpose is clearer, making it easier to understand and maintain.
Changelog
  • src/components/ContributionGraph.tsx
    • Extracted calendar data processing logic into a new processCalendarData helper function.
    • Updated the ContributionGraph component to call the new processCalendarData function for calendar data preparation.
    • Reformatted the MONTHS array for improved readability.
Activity
  • PR created automatically by Jules for task 11887452738226846435, started by @is0692vs.
  • Author verified changes by running npm test and npm run lint, confirming tests passed and code formatted successfully.
  • Author performed a local manual visual code review to ensure no functional changes were introduced.
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Code Review

This pull request refactors the calendar data processing logic from the ContributionGraph component into a new processCalendarData helper function. This is a great improvement for code clarity and separation of concerns. I've added one comment suggesting a further improvement to this refactoring: several constants are duplicated in both the component and the new helper function. Consolidating them into module-level constants would eliminate this duplication and enhance maintainability.

Comment on lines +77 to +81
const cellSize = 12;
const cellGap = 3;
const step = cellSize + cellGap;

const dayLabelWidth = 28;

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medium

These constants (cellSize, cellGap, step, dayLabelWidth) are also defined inside the processCalendarData function. This duplication can make future changes more difficult and error-prone. To improve maintainability, you should define these as module-level constants (e.g., after MONTHS) and use them in both functions. This will ensure they are defined in a single place.

For example, you could add this at the top of the file:

const CELL_SIZE = 12;
const CELL_GAP = 3;
const STEP = CELL_SIZE + CELL_GAP;
const DAY_LABEL_WIDTH = 28;

Then you can remove the local definitions from both ContributionGraph and processCalendarData and use these new constants.

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is0692vs commented Mar 6, 2026

Consolidated into the fix/consolidated-prs-latest branch (PR #56).

@is0692vs is0692vs closed this Mar 6, 2026
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Consolidated into the fix/consolidated-prs-latest branch (PR #56).

Acknowledged.

is0692vs added a commit that referenced this pull request Mar 14, 2026
📦 [Consolidated] PR #49~#54 の統合・競合解消およびレビュー指摘対応
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