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Aug 28, 2025
Hanssen0
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Summary of Changes
Hello @Hanssen0, 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 introduces a significant new feature to the demo application: a dedicated tool for managing 'Dep Groups' on the CKB blockchain. This tool empowers users to interact with CKB's transaction structure by allowing them to search, create, and update these specialized cells. Additionally, the PR includes a minor but impactful user experience enhancement to the application's generic message display component.
Highlights
- New Feature: CKB Dep Group Management Tool: A new page and associated functionality have been introduced to the demo application, enabling users to manage CKB 'Dep Groups'. This includes searching for existing groups, adding or removing outpoints, and performing create or update operations on the blockchain.
- Navigation Integration: The new 'Dep Group' tool has been integrated into the application's navigation, making it accessible from both the 'Connected' and 'Utils' sections of the demo.
- UI/UX Improvement for Message Component: The
Messagecomponent has been updated to improve user experience. The entire message container is now clickable to expand or collapse its content, rather than just a specific inner element.
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Code Review
This pull request introduces a new 'Dep Group' management page and adds links to it in the UI. The changes also include a minor UX improvement to the Message component. My review focuses on the new DepGroup component, where I've identified several areas for improvement regarding error handling, accessibility, React best practices, and overall code maintainability. These suggestions aim to make the new feature more robust and user-friendly.
| const [txHash, index] = outPoint.split(":"); | ||
| const newOutPoint = ccc.OutPoint.from({ | ||
| txHash: ccc.hexFrom(txHash), | ||
| index: ccc.numFrom(index), | ||
| }); | ||
|
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| setOutPoints([...outPoints, newOutPoint]); |
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The current implementation for adding an outpoint doesn't handle cases where the user input for outPoint is in an invalid format. If outPoint.split(':') doesn't return an array with two elements, the destructuring will cause a runtime error and crash the application. It's crucial to add error handling to gracefully manage invalid input and provide feedback to the user.
try {
const [txHash, index] = outPoint.split(":");
if (!txHash || index === undefined) {
throw new Error("Invalid outpoint format. Expected txHash:index");
}
const newOutPoint = ccc.OutPoint.from({
txHash: ccc.hexFrom(txHash),
index: ccc.numFrom(index),
});
setOutPoints([...outPoints, newOutPoint]);
} catch (e) {
error(e instanceof Error ? e.message : "Invalid outpoint format");
}
| <div | ||
| className="flex cursor-pointer items-center self-stretch bg-white/75" | ||
| onClick={search} | ||
| > | ||
| <Search | ||
| className="mx-4 rounded-full bg-sky-200 p-1 text-sky-500" | ||
| width="36" | ||
| height="36" | ||
| /> | ||
| </div> |
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For better accessibility, interactive elements like this search icon should be implemented using <button> tags instead of <div> tags. Using semantic HTML elements ensures that screen readers can correctly interpret and announce the element's role to users, and it also improves keyboard navigation. This also applies to the 'add' and 'remove' icons in this component.
| <div | |
| className="flex cursor-pointer items-center self-stretch bg-white/75" | |
| onClick={search} | |
| > | |
| <Search | |
| className="mx-4 rounded-full bg-sky-200 p-1 text-sky-500" | |
| width="36" | |
| height="36" | |
| /> | |
| </div> | |
| <button | |
| type="button" | |
| aria-label="Search" | |
| className="flex cursor-pointer items-center self-stretch bg-white/75" | |
| onClick={search} | |
| > | |
| <Search | |
| className="mx-4 rounded-full bg-sky-200 p-1 text-sky-500" | |
| width="36" | |
| height="36" | |
| /> | |
| </button> |
| ) : undefined} | ||
| {outPoints.map((outPoint, i) => { | ||
| return ( | ||
| <div className="bg-white/75 py-1" key={i}> |
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Using an array index as a key for list items is an anti-pattern in React, especially for dynamic lists where items can be added or removed. It can lead to unpredictable UI behavior and performance degradation. You should use a unique and stable identifier for each item. The combination of txHash and index from the outPoint object would be a great candidate for a unique key.
<div className="bg-white/75 py-1" key={`${outPoint.txHash}:${outPoint.index}`}>
| type: await ccc.Script.fromKnownScript( | ||
| client, | ||
| ccc.KnownScript.TypeId, | ||
| "00".repeat(32), |
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The string "00".repeat(32) is a magic value, which makes the code harder to understand and maintain. It should be extracted into a constant with a descriptive name (e.g., EMPTY_TYPE_ID_ARGS) defined at the top of the file. This improves readability and makes it easier to change the value in the future if needed.
EMPTY_TYPE_ID_ARGS,
| await signer.client.waitTransaction(txHash); | ||
| log("Transaction committed:", explorerTransaction(txHash)); | ||
| } else { | ||
| const { cell } = await validate(); |
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When updating an existing Type ID, the validate() function is called again, even if the isValid state is true. This results in a redundant network request, as the validation has already been performed by the search function. To optimize this, you could store the cell object from a successful validation in the component's state and reuse it here. This would avoid the unnecessary network call and improve performance.
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