Files
portfolio/src/components/constellation/CareerConstellation.tsx
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TypeScript

import React, { useRef, useEffect, useState, useCallback, useMemo } from 'react'
import * as d3 from 'd3'
import { constellationNodes } from '@/data/constellation'
import { timelineEntities } from '@/data/timeline'
import { useForceSimulation, getHeight } from '@/hooks/useForceSimulation'
import { useConstellationHighlight } from '@/hooks/useConstellationHighlight'
import { useConstellationInteraction } from '@/hooks/useConstellationInteraction'
import { useTimelineAnimation } from '@/hooks/useTimelineAnimation'
import { useFocusTrap } from '@/hooks/useFocusTrap'
import { MobileAccordion } from './MobileAccordion'
import { ConstellationLegend } from './ConstellationLegend'
import { AccessibleNodeOverlay } from './AccessibleNodeOverlay'
import { PlayPauseButton } from './PlayPauseButton'
import { FullscreenButton } from './FullscreenButton'
import { srDescription } from './screen-reader-description'
import {
MIN_HEIGHT,
SKILL_RADIUS_DEFAULT, SKILL_RADIUS_ACTIVE,
MOBILE_SKILL_RADIUS_DEFAULT, MOBILE_SKILL_RADIUS_ACTIVE,
supportsCoarsePointer, prefersReducedMotion,
} from './constants'
interface CareerConstellationProps {
onRoleClick: (id: string) => void
onSkillClick: (id: string) => void
onNodeHover?: (id: string | null) => void
highlightedNodeId?: string | null
containerHeight?: number | null
animationReady?: boolean
globalFocusActive?: boolean
}
const nodeById = new Map(constellationNodes.map(node => [node.id, node]))
const careerEntityById = new Map(timelineEntities.map(entity => [entity.id, entity]))
const CareerConstellation: React.FC<CareerConstellationProps> = ({
onRoleClick,
onSkillClick,
onNodeHover,
highlightedNodeId,
containerHeight,
animationReady = false,
globalFocusActive = false,
}) => {
const svgRef = useRef<SVGSVGElement>(null)
const containerRef = useRef<HTMLDivElement>(null)
const callbacksRef = useRef({ onRoleClick, onSkillClick, onNodeHover })
const highlightedNodeIdRef = useRef<string | null>(highlightedNodeId ?? null)
const [dimensions, setDimensions] = useState({ width: 800, height: MIN_HEIGHT, scaleFactor: 1 })
const [focusedNodeId, setFocusedNodeId] = useState<string | null>(null)
const [chartInView, setChartInView] = useState(true)
const [isFullscreen, setIsFullscreen] = useState(false)
callbacksRef.current = { onRoleClick, onSkillClick, onNodeHover }
useEffect(() => {
highlightedNodeIdRef.current = highlightedNodeId ?? null
}, [highlightedNodeId])
// Track chart visibility for play/pause button
useEffect(() => {
const container = containerRef.current
if (!container) return
const observer = new IntersectionObserver(
([entry]) => setChartInView(entry.isIntersecting),
{ threshold: 0.1 },
)
observer.observe(container)
return () => observer.disconnect()
}, [])
useEffect(() => {
const container = containerRef.current
if (!container) return
let debounceTimer: ReturnType<typeof setTimeout> | null = null
const X_CHANGE_THRESHOLD = 0.3
const updateDimensions = () => {
const width = container.clientWidth
const viewportWidth = window.innerWidth
const height = isFullscreen ? window.innerHeight : getHeight(viewportWidth, containerHeight)
const scaleFactor = viewportWidth >= 1024
? Math.max(1, Math.min(1.6, viewportWidth / 1440))
: 1
setDimensions(prev => {
const widthDelta = Math.abs(prev.width - width) / prev.width
const heightRatio = Math.max(height / prev.height, prev.height / height)
if (widthDelta < X_CHANGE_THRESHOLD && heightRatio < 2) {
return prev
}
return { width, height, scaleFactor }
})
}
// Use rAF for fullscreen toggle so CSS layout settles before measuring
requestAnimationFrame(updateDimensions)
const observer = new ResizeObserver(() => {
if (debounceTimer) clearTimeout(debounceTimer)
debounceTimer = setTimeout(updateDimensions, 2000)
})
observer.observe(container)
return () => {
observer.disconnect()
if (debounceTimer) clearTimeout(debounceTimer)
}
}, [containerHeight, isFullscreen])
const toggleFullscreen = useCallback(() => setIsFullscreen(prev => !prev), [])
// ESC key to exit fullscreen
useEffect(() => {
if (!isFullscreen) return
const handleKey = (e: KeyboardEvent) => {
if (e.key === 'Escape') { e.stopPropagation(); setIsFullscreen(false) }
}
document.addEventListener('keydown', handleKey)
return () => document.removeEventListener('keydown', handleKey)
}, [isFullscreen])
// Body scroll lock while fullscreen
useEffect(() => {
if (!isFullscreen) return
document.body.style.overflow = 'hidden'
return () => { document.body.style.overflow = '' }
}, [isFullscreen])
// Focus trap when fullscreen
useFocusTrap(containerRef, isFullscreen)
const isMobile = typeof window !== 'undefined' && window.innerWidth < 640
const sf = isMobile ? 1 : dimensions.scaleFactor
const srDefault = isMobile ? MOBILE_SKILL_RADIUS_DEFAULT : Math.round(SKILL_RADIUS_DEFAULT * sf)
const srActive = isMobile ? MOBILE_SKILL_RADIUS_ACTIVE : Math.round(SKILL_RADIUS_ACTIVE * sf)
const resolveGraphFallback = useCallback(
() => highlightedNodeIdRef.current ?? pinnedNodeIdRef.current,
[],
)
const resolveRoleFallback = useCallback(() => {
const hId = highlightedNodeIdRef.current
const hType = hId ? nodeById.get(hId)?.type : null
if (hId && hType && hType !== 'skill') return hId
const pId = pinnedNodeIdRef.current
const pType = pId ? nodeById.get(pId)?.type : null
if (pId && pType && pType !== 'skill') return pId
return null
}, [])
// Shared refs for hooks
const highlightGraphRef = useRef<((activeNodeId: string | null) => void) | null>(null)
const nodesRef = useRef<import('./types').SimNode[]>([])
const nodeSelectionRef = useRef<d3.Selection<SVGGElement, import('./types').SimNode, SVGGElement, unknown> | null>(null)
const linkSelectionRef = useRef<d3.Selection<SVGPathElement, import('./types').SimLink, SVGGElement, unknown> | null>(null)
const connectedMapRef = useRef<Map<string, Set<string>>>(new Map())
const skillRestRadiiRef = useRef<Map<string, number>>(new Map())
const visibleNodeIdsRef = useRef<Set<string>>(new Set())
const { applyGraphHighlight } = useConstellationHighlight({
nodeSelectionRef,
linkSelectionRef,
connectedMap: connectedMapRef.current,
srDefault,
srActive,
nodesRef,
skillRestRadii: skillRestRadiiRef.current,
visibleNodeIdsRef,
})
highlightGraphRef.current = applyGraphHighlight
const simOptionsRef = useRef({
resolveGraphFallback,
applyHighlight: applyGraphHighlight,
})
simOptionsRef.current = { resolveGraphFallback, applyHighlight: applyGraphHighlight }
const stableSimOptions = useMemo(() => ({
resolveGraphFallback: () => simOptionsRef.current.resolveGraphFallback(),
applyHighlight: (id: string | null) => simOptionsRef.current.applyHighlight(id),
}), [])
const sim = useForceSimulation(svgRef, dimensions, stableSimOptions)
// Sync simulation refs
useEffect(() => {
nodesRef.current = sim.nodesRef.current
nodeSelectionRef.current = sim.nodeSelectionRef.current
linkSelectionRef.current = sim.linkSelectionRef.current
if (sim.connectedMap.size > 0) connectedMapRef.current = sim.connectedMap
if (sim.skillRestRadii.size > 0) skillRestRadiiRef.current = sim.skillRestRadii
})
// Animation hook
const animation = useTimelineAnimation({
nodeSelectionRef,
linkSelectionRef,
simulationRef: sim.simulationRef,
yearIndicatorRef: sim.yearIndicatorRef,
connectorSelectionRef: sim.connectorSelectionRef,
timelineGroupRef: sim.timelineGroupRef,
skillRestRadiiRef,
srDefault,
dimensionsTrigger: dimensions.width + dimensions.height,
ready: animationReady,
})
// Sync visibleNodeIdsRef from animation hook
visibleNodeIdsRef.current = animation.visibleNodeIdsRef.current
// Interaction hook
const { pinnedNodeId, setPinnedNodeId, pinnedNodeIdRef } = useConstellationInteraction({
highlightGraphRef,
nodeSelectionRef,
svgRef,
callbacksRef,
resolveGraphFallback,
resolveRoleFallback,
dimensionsTrigger: dimensions.width + dimensions.height,
})
// External highlight sync
useEffect(() => {
if (!highlightGraphRef.current) return
highlightGraphRef.current(highlightedNodeId ?? pinnedNodeId)
}, [highlightedNodeId, pinnedNodeId])
// Focus ring management
useEffect(() => {
if (!svgRef.current) return
const svg = d3.select(svgRef.current)
svg.selectAll('.focus-ring').attr('stroke', 'transparent')
if (focusedNodeId) {
svg.selectAll<SVGGElement, { id: string }>('g.node')
.filter(d => d.id === focusedNodeId)
.select('.focus-ring')
.attr('stroke', 'var(--accent)')
.attr('stroke-width', 2)
}
}, [focusedNodeId])
const handleNodeKeyDown = useCallback((e: React.KeyboardEvent, nodeId: string, nodeType: 'role' | 'skill' | 'education') => {
if (e.key !== 'Enter' && e.key !== ' ') return
e.preventDefault()
setPinnedNodeId(nodeId)
pinnedNodeIdRef.current = nodeId
highlightGraphRef.current?.(nodeId)
onNodeHover?.(nodeType !== 'skill' ? nodeId : resolveRoleFallback())
;(nodeType !== 'skill' ? onRoleClick : onSkillClick)(nodeId)
}, [onRoleClick, onSkillClick, onNodeHover, resolveRoleFallback, setPinnedNodeId, pinnedNodeIdRef])
const pinnedRoleNode = pinnedNodeId ? constellationNodes.find(n => n.id === pinnedNodeId && (n.type === 'role' || n.type === 'education')) : null
const pinnedCareerEntity = pinnedRoleNode ? careerEntityById.get(pinnedRoleNode.id) ?? null : null
const domainCounts = useMemo(() => {
const counts: Record<string, number> = {}
constellationNodes.filter(n => n.type === 'skill').forEach(n => {
const d = n.domain ?? 'technical'
counts[d] = (counts[d] ?? 0) + 1
})
return counts
}, [])
const showAccordion = supportsCoarsePointer && pinnedCareerEntity !== null
return (
<>
{isFullscreen && (
<div
onClick={toggleFullscreen}
style={{
position: 'fixed',
inset: 0,
zIndex: 899,
background: 'var(--backdrop-bg)',
backdropFilter: 'blur(var(--backdrop-blur))',
animation: 'backdrop-fade-in 200ms ease-out',
}}
/>
)}
<div
ref={containerRef}
{...(isFullscreen ? {
role: 'dialog',
'aria-modal': true,
'aria-label': 'Career constellation fullscreen view',
} : {})}
style={{
width: '100%',
borderRadius: isFullscreen ? 0 : 'var(--radius-sm)',
border: isFullscreen ? 'none' : '1px solid var(--border-light)',
overflow: 'hidden',
position: isFullscreen ? 'fixed' : 'relative',
...(isFullscreen ? { inset: 0, zIndex: 900, background: 'var(--surface)' } : {}),
animation: isFullscreen ? 'constellation-fullscreen-in 200ms ease-out' : undefined,
}}
>
<svg
ref={svgRef}
viewBox={`0 0 ${dimensions.width} ${dimensions.height}`}
role="img"
aria-label="Clinical pathway constellation showing career roles and skills in reverse-chronological order along a vertical timeline"
className={globalFocusActive || highlightedNodeId || pinnedNodeId ? 'constellation-focus-active' : ''}
style={{
display: 'block',
width: '100%',
height: dimensions.height,
opacity: 1,
}}
/>
<ConstellationLegend isTouch={supportsCoarsePointer} domainCounts={domainCounts} />
<MobileAccordion pinnedCareerEntity={pinnedCareerEntity} show={showAccordion} />
{!prefersReducedMotion && (
<PlayPauseButton
isPlaying={animation.isPlaying}
isCompleted={animation.isCompleted}
onToggle={animation.togglePlayPause}
isMobile={isMobile}
visible={chartInView}
containerRef={containerRef}
/>
)}
<FullscreenButton
isFullscreen={isFullscreen}
onToggle={toggleFullscreen}
isMobile={isMobile}
/>
<p
style={{
position: 'absolute',
width: 1, height: 1, padding: 0, margin: -1,
overflow: 'hidden', clip: 'rect(0,0,0,0)',
whiteSpace: 'nowrap', border: 0,
}}
>
{srDescription}
</p>
<AccessibleNodeOverlay
nodes={constellationNodes}
nodeButtonPositions={sim.nodeButtonPositions}
dimensions={dimensions}
onFocus={(nodeId) => {
setFocusedNodeId(nodeId)
highlightGraphRef.current?.(nodeId)
const node = nodeById.get(nodeId)
if (node?.type !== 'skill') onNodeHover?.(nodeId)
}}
onBlur={() => {
setFocusedNodeId(null)
highlightGraphRef.current?.(resolveGraphFallback())
onNodeHover?.(resolveRoleFallback())
}}
onClick={(nodeId, nodeType) => {
setPinnedNodeId(nodeId)
pinnedNodeIdRef.current = nodeId
highlightGraphRef.current?.(nodeId)
if (nodeType !== 'skill') {
onNodeHover?.(nodeId)
onRoleClick(nodeId)
} else {
onNodeHover?.(resolveRoleFallback())
onSkillClick(nodeId)
}
}}
onKeyDown={handleNodeKeyDown}
/>
</div>
</>
)
}
export default CareerConstellation