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Caution Review failedThe pull request is closed. WalkthroughThe changes refactor the Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant MailList
participant Thread
participant useThread
User->>MailList: Scrolls or interacts
MailList->>Thread: Renders thread item
Thread->>useThread: Retrieves thread data (memoized)
useThread-->>Thread: Returns latestDraft, isGroupThread, finalData
Thread->>Thread: Computes display flags, labels, and emailContent (memoized)
Thread-->>MailList: Renders memoized content
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PR Summary
Performance optimization of mail component rendering and thread management through code cleanup and memoization improvements.
- Optimized
apps/mail/hooks/use-threads.tsby consolidating multipleuseMemohooks into a single computation for latestDraft, isGroupThread, and finalData - Enhanced
apps/mail/components/mail/mail-list.tsxperformance by removing template prefetching and optimizing VList configuration - Streamlined state management by removing unused dependencies (queryClient, settingsData) and dead code
- Improved rendering efficiency through better memoization patterns and props organization
2 files reviewed, 2 comments
Edit PR Review Bot Settings | Greptile
| const [_threadId] = useQueryState('threadId'); | ||
| const id = threadId ? threadId : _threadId; | ||
| const trpc = useTRPC(); |
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style: Optional chaining would be safer here. Consider: const id = threadId ?? _threadId
| const isGroupThread = threadQuery.data.latest?.id | ||
| ? (() => { | ||
| const totalRecipients = [ | ||
| ...(threadQuery.data.latest.to || []), | ||
| ...(threadQuery.data.latest.cc || []), | ||
| ...(threadQuery.data.latest.bcc || []), | ||
| ].length; | ||
| return totalRecipients > 1; | ||
| })() | ||
| : false; |
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style: IIFE not needed here. Can be simplified to a direct calculation
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Bug: Thread Data Refresh Issue
The removal of the useEffect that invalidated the thread query on historyId changes prevents thread data from refreshing. This causes stale or outdated thread content to be displayed when new messages or updates occur.
apps/mail/hooks/use-threads.ts#L62-L79
Zero/apps/mail/hooks/use-threads.ts
Lines 62 to 79 in 97ef1f9
Bug: Incomplete Dependencies Cause Stale UI and Callback Issues
The content useMemo hook's dependency array is incomplete, missing handleToggleStar, handleToggleImportant, moveThreadTo, setMail, displayStarred, displayImportant, and hasDraft. This leads to stale UI (e.g., incorrect star/important states, missing draft indicator) and outdated callback references, causing incorrect user interactions.
apps/mail/components/mail/mail-list.tsx#L232-L565
Zero/apps/mail/components/mail/mail-list.tsx
Lines 232 to 565 in 97ef1f9
Bug: Stale Email Content Due to Missing Dependency
The useMemo hook calculates emailContent from getThreadData?.latest?.body, but this dependency is missing from its dependency array. This causes emailContent to become stale and display incorrect content when the thread body changes.
apps/mail/components/mail/mail-list.tsx#L94-L154
Zero/apps/mail/components/mail/mail-list.tsx
Lines 94 to 154 in 97ef1f9
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1 participant
Performance Optimization for Mail List Component
Description
This PR optimizes the mail list component to improve rendering performance and reduce unnecessary re-renders. Key improvements include:
Type of Change
Areas Affected
Testing Done
Checklist
Additional Notes
The virtual list configuration has been adjusted to use a fixed item size of 100px and reduced the overscan from 20 to 5 items, which should significantly improve scrolling performance. The trigger for loading more items has been adjusted to start when within 7 items of the end (previously 5).
Summary by CodeRabbit