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fix: rerender chat component #5805

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Dogtiti
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@Dogtiti Dogtiti commented Nov 11, 2024

💻 变更类型 | Change Type

  • feat
  • fix
  • refactor
  • perf
  • style
  • test
  • docs
  • ci
  • chore
  • build

🔀 变更说明 | Description of Change

📝 补充信息 | Additional Information

Summary by CodeRabbit

  • New Features

    • Enhanced state management for chat sessions with the introduction of a forceUpdateKey, improving responsiveness to state changes.
  • Bug Fixes

    • Improved reactivity in the chat component to ensure proper re-renders when session states are modified.

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@Dogtiti Dogtiti marked this pull request as ready for review November 11, 2024 08:04
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coderabbitai bot commented Nov 11, 2024

Walkthrough

The changes introduce a new property, forceUpdateKey, to the chat state management system, enhancing the responsiveness of the Chat component. The sessionIndex variable is replaced with forceUpdateKey in the Chat component, ensuring correct re-renders when the key changes. Additionally, the forceUpdateKey is updated in various session management methods to track state changes effectively. Overall, the structure and logic of the components remain unchanged, focusing on improved state management without altering existing functionalities.

Changes

File Change Summary
app/components/chat.tsx Replaced sessionIndex with forceUpdateKey from chatStore for reactivity in _Chat.
app/store/chat.ts Added forceUpdateKey to DEFAULT_CHAT_STATE; updated in session management methods.

Possibly related PRs

  • fix: right click #5335: Modifies the _Chat function in app/components/chat.tsx, directly connected to changes in the Chat component.
  • feat: update real 'currentSession' #5765: Involves updates to the summarizeSession method in app/components/chat.tsx, relating to the functionality of chat sessions managed in the main PR.

Suggested reviewers

  • lloydzhou

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@Dogtiti
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Dogtiti commented Nov 11, 2024

修复:新增聊天总是将currentSessionIndex设置为0 导致key没有变化所以组件没有重新卸载渲染导致的一系列相关问题

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Bot detected the issue body's language is not English, translate it automatically.


Fix: When adding a new chat, the currentSessionIndex is always set to 0. As a result, the key does not change, so the component is not re-unloaded and rendered, resulting in a series of related problems.

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Actionable comments posted: 0

🧹 Outside diff range and nitpick comments (3)
app/store/chat.ts (3)

242-245: Consider optimizing re-render behavior in selectSession

While updating forceUpdateKey ensures the UI reflects the newly selected session, it might cause unnecessary re-renders when switching between sessions that haven't changed. Consider updating the key only when the session content has actually changed since the last selection.

 selectSession(index: number) {
+  const prevSession = get().currentSession();
+  const nextSession = get().sessions[index];
   set({
     currentSessionIndex: index,
-    forceUpdateKey: Date.now(),
+    forceUpdateKey: prevSession?.id !== nextSession?.id ? Date.now() : get().forceUpdateKey,
   });
 },

Line range hint 328-344: Fix potential stale UI state after undo in deleteSession

The restoreState object doesn't include the forceUpdateKey, which could lead to stale UI state when undoing a session deletion. The UI might not properly reflect the restored session.

Apply this fix:

 const restoreState = {
   currentSessionIndex: get().currentSessionIndex,
   sessions: get().sessions.slice(),
+  forceUpdateKey: Date.now(),
 };

 set(() => ({
   currentSessionIndex: nextIndex,
   sessions,
   forceUpdateKey: Date.now(),
 }));

 showToast(
   Locale.Home.DeleteToast,
   {
     text: Locale.Home.Revert,
     onClick() {
-      set(() => restoreState);
+      set(() => ({
+        ...restoreState,
+        forceUpdateKey: Date.now(),
+      }));
     },
   },
   5000,
 );

196-196: Consider implementing a more granular re-render strategy

While using forceUpdateKey effectively solves the chat component re-rendering issue, consider implementing a more granular strategy to minimize unnecessary re-renders:

  1. Track individual session changes using a version or timestamp per session
  2. Only update the force key when the active session's content changes
  3. Use React's useMemo or useCallback for expensive computations

This would improve performance by avoiding full re-renders when only metadata changes.

Also applies to: 229-229, 237-237, 244-244, 269-269, 294-294, 334-334

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Reviewing files that changed from the base of the PR and between 38fa305 and 790adb2.

📒 Files selected for processing (2)
  • app/components/chat.tsx (1 hunks)
  • app/store/chat.ts (5 hunks)
🔇 Additional comments (6)
app/store/chat.ts (5)

196-196: LGTM: Good use of timestamp for force update mechanism

Using Date.now() as the initial value for forceUpdateKey is a good choice as it ensures a unique value for the first render.


229-229: LGTM: Proper state update in forkSession

The forceUpdateKey update is correctly placed after the session state changes, ensuring the UI reflects the new forked session.


237-237: LGTM: Proper state reset in clearSessions

The forceUpdateKey update is correctly included in the state reset, ensuring the UI refreshes when all sessions are cleared.


269-269: LGTM: Proper state update in moveSession

The forceUpdateKey update is correctly included in the state update when reordering sessions.


294-294: LGTM: Proper state update in newSession

The forceUpdateKey update is correctly included when creating a new session.

app/components/chat.tsx (1)

2074-2075: LGTM! The re-rendering fix looks correct.

The change replaces sessionIndex with forceUpdateKey from the chat store to properly trigger re-renders of the _Chat component when needed. This is a good fix that follows React best practices for forcing component updates.

@Dogtiti
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Dogtiti commented Nov 11, 2024

#5792

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Bot detected the issue body's language is not English, translate it automatically.


#5792

@Dogtiti Dogtiti closed this Nov 11, 2024
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2 participants