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feat(routes): implement code splitting and lazy loading for application pages #218

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feat(routes): implement code splitting and lazy loading for application pages #218

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94634a3
feat(routes): implement code splitting and lazy loading for applicati…
Dotify71 Sep 3, 2026
78ea7e2
fix(app): update ErrorBoundary fallback message to generic error wording
Dotify71 Sep 3, 2026
a53bb0d
refactor(app): externalize loading and error strings into ROUTE_STRIN…
Dotify71 Sep 3, 2026
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99 changes: 74 additions & 25 deletions src/App.jsx
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Original file line number Diff line number Diff line change
@@ -1,21 +1,66 @@
import React from 'react'
import React, { Suspense, Component } from 'react'
import { Routes, Route, Navigate } from 'react-router-dom'
import { AppProvider } from './context/AppContext'
import { ThemeProvider } from './context/ThemeContext'
import Navbar from './components/Navbar'
import RateLimitBanner from './components/RateLimitBanner'
import HomePage from './pages/HomePage'
import OverviewPage from './pages/OverviewPage'
import RepositoriesPage from './pages/RepositoriesPage'
import ContributorsPage from './pages/ContributorsPage'
import ContributorProfilePage from './pages/ContributorProfilePage'
import NetworkPage from './pages/NetworkPage'
import AnalyticsPage from './pages/AnalyticsPage'
import GovernancePage from './pages/GovernancePage'
import SettingsPage from './pages/SettingsPage'
import Footer from './components/layout/Footer'
import Support from './pages/Support'
import Footer from './components/layout/Footer'
import RequireAnalysis from './components/RequireAnalysis'
import { Spinner } from './components/UI'

const HomePage = React.lazy(() => import('./pages/HomePage'))
const OverviewPage = React.lazy(() => import('./pages/OverviewPage'))
const RepositoriesPage = React.lazy(() => import('./pages/RepositoriesPage'))
const ContributorsPage = React.lazy(() => import('./pages/ContributorsPage'))
const ContributorProfilePage = React.lazy(() => import('./pages/ContributorProfilePage'))
const NetworkPage = React.lazy(() => import('./pages/NetworkPage'))
const AnalyticsPage = React.lazy(() => import('./pages/AnalyticsPage'))
const GovernancePage = React.lazy(() => import('./pages/GovernancePage'))
const SettingsPage = React.lazy(() => import('./pages/SettingsPage'))
const ROUTE_STRINGS = {
ERROR_TITLE: 'Unable to load page',
ERROR_MESSAGE: 'An error occurred while loading this page.',
RELOAD_BUTTON: 'Reload Page',
LOADING_LABEL: 'Loading page',
}

class ErrorBoundary extends Component {
constructor(props) {
super(props)
this.state = { hasError: false }
}

static getDerivedStateFromError() {
return { hasError: true }
}

componentDidCatch(error, errorInfo) {
console.error('Route load error:', error, errorInfo)
}

render() {
if (this.state.hasError) {
return (
<div style={{ display: 'flex', flexDirection: 'column', alignItems: 'center', justifyContent: 'center', padding: '64px 16px', textAlign: 'center' }}>
<h3>{ROUTE_STRINGS.ERROR_TITLE}</h3>
<p style={{ color: 'var(--text2)', marginBottom: '16px' }}>{ROUTE_STRINGS.ERROR_MESSAGE}</p>
<button className="btn btn-primary" onClick={() => window.location.reload()}>
{ROUTE_STRINGS.RELOAD_BUTTON}
</button>
</div>
)
}
return this.props.children
}
}

function PageLoader() {
return (
<div style={{ display: 'flex', justifyContent: 'center', alignItems: 'center', minHeight: '60vh' }} role="status" aria-label={ROUTE_STRINGS.LOADING_LABEL}>
<Spinner size={36} />
</div>
)
}

function Layout({ children }) {
return (
Expand All @@ -31,19 +76,23 @@ function Layout({ children }) {
function AppContent() {
return (
<Layout>
<Routes>
<Route path="/" element={<HomePage />} />
<Route path="/overview" element={<RequireAnalysis><OverviewPage /></RequireAnalysis>} />
<Route path="/repositories" element={<RequireAnalysis><RepositoriesPage /></RequireAnalysis>} />
<Route path="/contributors" element={<RequireAnalysis><ContributorsPage /></RequireAnalysis>} />
<Route path="/contributors/:username" element={<RequireAnalysis><ContributorProfilePage /></RequireAnalysis>} />
<Route path="/network" element={<RequireAnalysis><NetworkPage /></RequireAnalysis>} />
<Route path="/analytics" element={<RequireAnalysis><AnalyticsPage /></RequireAnalysis>} />
<Route path="/governance" element={<RequireAnalysis><GovernancePage /></RequireAnalysis>} />
<Route path="/settings" element={<SettingsPage />} />
<Route path="/support-us" element={<Support />} />
<Route path="*" element={<Navigate to="/" replace />} />
</Routes>
<ErrorBoundary>
<Suspense fallback={<PageLoader />}>
<Routes>
<Route path="/" element={<HomePage />} />
<Route path="/overview" element={<RequireAnalysis><OverviewPage /></RequireAnalysis>} />
<Route path="/repositories" element={<RequireAnalysis><RepositoriesPage /></RequireAnalysis>} />
<Route path="/contributors" element={<RequireAnalysis><ContributorsPage /></RequireAnalysis>} />
<Route path="/contributors/:username" element={<RequireAnalysis><ContributorProfilePage /></RequireAnalysis>} />
<Route path="/network" element={<RequireAnalysis><NetworkPage /></RequireAnalysis>} />
<Route path="/analytics" element={<RequireAnalysis><AnalyticsPage /></RequireAnalysis>} />
<Route path="/governance" element={<RequireAnalysis><GovernancePage /></RequireAnalysis>} />
<Route path="/settings" element={<SettingsPage />} />
<Route path="/support-us" element={<Support />} />
<Route path="*" element={<Navigate to="/" replace />} />
</Routes>
</Suspense>
</ErrorBoundary>
</Layout>
)
}
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