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perf: add export loading state and virtual scrolling for large lists

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Export modal now shows a loading indicator and doesn't freeze the UI.
Large list modals use virtual scrolling for smooth performance.
This commit is contained in:
Usman Baig
2026-03-10 20:45:49 +01:00
parent 848bde237f
commit f10b903a80
9 changed files with 546 additions and 413 deletions
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68
components/dashboard/Locations.tsx
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@@ -13,6 +13,7 @@ const DottedMap = dynamic(() => import('./DottedMap'), { ssr: false })
const Globe = dynamic(() => import('./Globe'), { ssr: false })
import { Modal, GlobeIcon } from '@ciphera-net/ui'
import { ListSkeleton } from '@/components/skeletons'
import VirtualList from './VirtualList'
import { ShieldCheck, Detective, Broadcast, FrameCornersIcon } from '@phosphor-icons/react'
import { getCountries, getCities, getRegions } from '@/lib/api/stats'
import { type DimensionFilter } from '@/lib/filters'
@@ -334,7 +335,7 @@ export default function Locations({ countries, cities, regions, geoDataLevel = '
className="w-full px-3 py-2 mb-3 text-sm bg-neutral-50 dark:bg-neutral-800 border border-neutral-200 dark:border-neutral-700 rounded-lg text-neutral-900 dark:text-white placeholder-neutral-400 dark:placeholder-neutral-500 focus:outline-none focus:ring-2 focus:ring-brand-orange/50"
/>
</div>
<div className="space-y-1 max-h-[80vh] overflow-y-auto pr-2">
<div className="max-h-[80vh]">
{isLoadingFull ? (
<div className="py-4">
<ListSkeleton rows={10} />
@@ -347,35 +348,42 @@ export default function Locations({ countries, cities, regions, geoDataLevel = '
return label.toLowerCase().includes(search)
})
const modalTotal = modalData.reduce((sum, item) => sum + item.pageviews, 0)
return modalData.map((item) => {
const dim = TAB_TO_DIMENSION[activeTab]
const filterValue = activeTab === 'countries' ? item.country : activeTab === 'regions' ? item.region : item.city
const canFilter = onFilter && dim && filterValue
return (
<div
key={`${item.country ?? ''}-${item.region ?? ''}-${item.city ?? ''}`}
onClick={() => { if (canFilter) { onFilter({ dimension: dim, operator: 'is', values: [filterValue!] }); setIsModalOpen(false) } }}
className={`flex items-center justify-between h-9 group hover:bg-neutral-50 dark:hover:bg-neutral-800 rounded-lg px-2 transition-colors${canFilter ? ' cursor-pointer' : ''}`}
>
<div className="flex-1 truncate text-neutral-900 dark:text-white flex items-center gap-3">
<span className="shrink-0">{getFlagComponent(item.country ?? '')}</span>
<span className="truncate">
{activeTab === 'countries' ? getCountryName(item.country ?? '') :
activeTab === 'regions' ? getRegionName(item.region ?? '', item.country ?? '') :
getCityName(item.city ?? '')}
</span>
</div>
<div className="flex items-center gap-2 ml-4">
<span className="text-xs font-medium text-brand-orange opacity-0 translate-x-2 group-hover:opacity-100 group-hover:translate-x-0 transition-all duration-200">
{modalTotal > 0 ? `${Math.round((item.pageviews / modalTotal) * 100)}%` : ''}
</span>
<span className="text-sm font-semibold text-neutral-600 dark:text-neutral-400">
{formatNumber(item.pageviews)}
</span>
</div>
</div>
)
})
return (
<VirtualList
items={modalData}
estimateSize={36}
className="max-h-[80vh] overflow-y-auto pr-2"
renderItem={(item) => {
const dim = TAB_TO_DIMENSION[activeTab]
const filterValue = activeTab === 'countries' ? item.country : activeTab === 'regions' ? item.region : item.city
const canFilter = onFilter && dim && filterValue
return (
<div
key={`${item.country ?? ''}-${item.region ?? ''}-${item.city ?? ''}`}
onClick={() => { if (canFilter) { onFilter({ dimension: dim, operator: 'is', values: [filterValue!] }); setIsModalOpen(false) } }}
className={`flex items-center justify-between h-9 group hover:bg-neutral-50 dark:hover:bg-neutral-800 rounded-lg px-2 transition-colors${canFilter ? ' cursor-pointer' : ''}`}
>
<div className="flex-1 truncate text-neutral-900 dark:text-white flex items-center gap-3">
<span className="shrink-0">{getFlagComponent(item.country ?? '')}</span>
<span className="truncate">
{activeTab === 'countries' ? getCountryName(item.country ?? '') :
activeTab === 'regions' ? getRegionName(item.region ?? '', item.country ?? '') :
getCityName(item.city ?? '')}
</span>
</div>
<div className="flex items-center gap-2 ml-4">
<span className="text-xs font-medium text-brand-orange opacity-0 translate-x-2 group-hover:opacity-100 group-hover:translate-x-0 transition-all duration-200">
{modalTotal > 0 ? `${Math.round((item.pageviews / modalTotal) * 100)}%` : ''}
</span>
<span className="text-sm font-semibold text-neutral-600 dark:text-neutral-400">
{formatNumber(item.pageviews)}
</span>
</div>
</div>
)
}}
/>
)
})()}
</div>
</Modal>