perf: implement route-based code splitting with React.lazy()#263
perf: implement route-based code splitting with React.lazy()#263jmanhype wants to merge 1 commit intoautomagik-dev:devfrom
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Summary of ChangesHello @jmanhype, 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 significantly improves the application's initial loading performance by introducing route-based code splitting. By lazy-loading less frequently accessed pages such as the various settings sections, release notes, and full attempt logs, the initial JavaScript bundle size is reduced, leading to faster load times for users. A consistent loading indicator is displayed while these components are being fetched, ensuring a smooth user experience. Highlights
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Code Review
This pull request effectively implements route-based code splitting using React.lazy() and Suspense, which is a great performance improvement for the application's initial load time. The implementation is correct and covers all the intended routes. My only feedback is a suggestion to reduce some code repetition in the route definitions for better long-term maintainability. Overall, this is a solid contribution.
| <Route | ||
| path="/settings/*" | ||
| element={ | ||
| <Suspense fallback={<RouteLoadingFallback />}> | ||
| <SettingsLayout /> | ||
| </Suspense> | ||
| } | ||
| > | ||
| <Route index element={<Navigate to="general" replace />} /> | ||
| <Route path="general" element={<GeneralSettings />} /> | ||
| <Route path="projects" element={<ProjectSettings />} /> | ||
| <Route path="agents" element={<AgentSettings />} /> | ||
| <Route path="mcp" element={<McpSettings />} /> | ||
| <Route | ||
| path="general" | ||
| element={ | ||
| <Suspense fallback={<RouteLoadingFallback />}> | ||
| <GeneralSettings /> | ||
| </Suspense> | ||
| } | ||
| /> | ||
| <Route | ||
| path="projects" | ||
| element={ | ||
| <Suspense fallback={<RouteLoadingFallback />}> | ||
| <ProjectSettings /> | ||
| </Suspense> | ||
| } | ||
| /> | ||
| <Route | ||
| path="agents" | ||
| element={ | ||
| <Suspense fallback={<RouteLoadingFallback />}> | ||
| <AgentSettings /> | ||
| </Suspense> | ||
| } | ||
| /> | ||
| <Route | ||
| path="mcp" | ||
| element={ | ||
| <Suspense fallback={<RouteLoadingFallback />}> | ||
| <McpSettings /> | ||
| </Suspense> | ||
| } | ||
| /> | ||
| </Route> |
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While this correctly implements lazy loading for each settings page, there's significant repetition with the <Suspense> wrapper for each nested route. This can make the routing configuration harder to read and maintain.
A more maintainable pattern would be to centralize the Suspense boundary. Ideally, this would be inside the SettingsLayout component, wrapping the <Outlet />. This would handle the loading state for all nested settings pages automatically.
Since SettingsLayout.tsx isn't modified in this PR, a good alternative is to create a small wrapper component within App.tsx to reduce this boilerplate.
For example, you could define a wrapper:
const Suspended = ({ children }: { children: React.ReactNode }) => (
<Suspense fallback={<RouteLoadingFallback />}>
{children}
</Suspense>
);And then use it like this:
<Route path="general" element={<Suspended><GeneralSettings /></Suspended>} />
<Route path="projects" element={<Suspended><ProjectSettings /></Suspended>} />
// ... and so onThis would make the route definitions cleaner and less repetitive.
Lazy load Settings, ReleaseNotes, and FullLogs pages to reduce initial bundle size. Each lazy-loaded route is wrapped in Suspense with a consistent loading fallback component. Co-authored-by: Automagik Genie 🧞 <genie@namastex.ai>
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| import { ClickedElementsProvider } from '@/contexts/ClickedElementsProvider'; | ||
| import { GenieMasterWidget } from '@/components/genie-widgets/GenieMasterWidget'; | ||
| import { SubGenieProvider } from '@/context/SubGenieContext'; | ||
| import { SubGenieProvider } from '@/contexts/SubGenieContext'; |
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The new import points to @/contexts/SubGenieContext, but the provider lives in frontend/src/context/SubGenieContext.tsx (singular directory). There is no contexts/SubGenieContext module, so any build or test that includes App.tsx will now fail with a module-not-found error, preventing the app from compiling.
Useful? React with 👍 / 👎.
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ℹ️ About Codex in GitHub
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- Open a pull request for review
- Mark a draft as ready
- Comment "@codex review".
If Codex has suggestions, it will comment; otherwise it will react with 👍.
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| import { ClickedElementsProvider } from '@/contexts/ClickedElementsProvider'; | ||
| import { GenieMasterWidget } from '@/components/genie-widgets/GenieMasterWidget'; | ||
| import { SubGenieProvider } from '@/context/SubGenieContext'; | ||
| import { SubGenieProvider } from '@/contexts/SubGenieContext'; |
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The commit changes the SubGenie provider import to @/contexts/SubGenieContext, but the only implementation lives at frontend/src/context/SubGenieContext.tsx (singular). With no matching file under contexts/, the build will fail with a module resolution error before the app can start, blocking any route rendering. Point the import back to the existing context path to restore compilation.
Useful? React with 👍 / 👎.
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Lazy load Settings, ReleaseNotes, and FullLogs pages to reduce initial bundle size. Each lazy-loaded route is wrapped in Suspense with a consistent loading fallback component.