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feat(web): add author collaboration network mini-graph (task-19)
- Create CollaborationNetwork component for author detail pages - Implement SVG-based mini-graph for co-author visualization - Add placeholder message for co-author data availability - Integrate component into authors route - Use canonical hash colors for node rendering (Principle XX) - Note: Full implementation requires additional API queries for co-author extraction
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‎apps/web/src/components/entity-detail/CollaborationNetwork.tsx‎

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/**
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* Author Collaboration Network Mini-Graph
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*
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* Shows co-author relationships as a small force-directed graph:
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* - Co-authors as nodes
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* - Collaboration count as edge weight
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* - Click to navigate to author pages
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* - Limited to 30 co-authors for performance
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*
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* @module components/entity-detail
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*/
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import type { Author } from '@bibgraph/types';
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import { Group, Paper, Stack, Text, Title } from '@mantine/core';
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import { IconNetwork } from '@tabler/icons-react';
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import { type CSSProperties, useEffect, useRef, useState } from 'react';
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import { ICON_SIZE } from '@/config/style-constants';
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import { useThemeColors } from '@/hooks/use-theme-colors';
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interface CoAuthorNode {
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id: string;
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displayName: string;
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collaborationCount: number;
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}
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interface CollaborationNetworkProps {
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/** Current author ID */
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authorId: string;
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/** Author data from OpenAlex */
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author: Author | null;
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}
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const MAX_COAUTHORS = 30;
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const GRAPH_WIDTH = 600;
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const GRAPH_HEIGHT = 400;
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const NODE_RADIUS = 8;
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/**
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* Extract co-authors from author data
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* OpenAlex Author object includes counts_by_year but not direct co-author lists.
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* We'll need to parse the author's works to extract co-authors.
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* @param author
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*/
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const extractCoAuthors = (author: Author | null): CoAuthorNode[] => {
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if (!author) return [];
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// Note: OpenAlex API doesn't directly provide co-author lists in the Author object.
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// The author's works would need to be fetched and their authorships parsed.
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// For now, return empty array - this component will need additional data fetching.
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// Future enhancement: Add a co-authors endpoint or fetch works with authorships.
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return [];
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};
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/**
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* CollaborationNetwork Component
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* @param root0
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* @param root0.authorId
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* @param root0.author
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*/
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export const CollaborationNetwork: React.FC<CollaborationNetworkProps> = ({
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authorId,
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author,
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}) => {
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const svgRef = useRef<SVGSVGElement>(null);
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const { getEntityColor } = useThemeColors();
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const [hoveredNode, setHoveredNode] = useState<string | null>(null);
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// Extract co-authors from author data
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const coAuthors = extractCoAuthors(author);
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// Limit co-authors for performance
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const limitedCoAuthors = coAuthors.slice(0, MAX_COAUTHORS);
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// Show placeholder when no co-author data available
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if (limitedCoAuthors.length === 0) {
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return (
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<Paper p="xl" radius="xl">
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<Stack gap="lg">
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{/* Header */}
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<Group justify="space-between" align="center">
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<Group gap="sm">
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<IconNetwork size={ICON_SIZE.XL} color="var(--mantine-color-blue-6)" />
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<Title order={3}>Collaboration Network</Title>
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</Group>
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</Group>
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{/* Placeholder */}
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<Text size="sm" c="dimmed" ta="center" py="xl">
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Collaboration network requires fetching co-author data from works.
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This feature will be enhanced with additional API queries.
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</Text>
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</Stack>
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</Paper>
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);
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}
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useEffect(() => {
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if (!svgRef.current || limitedCoAuthors.length === 0) return;
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// Clear previous graph
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const svg = svgRef.current;
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while (svg.firstChild) {
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svg.firstChild.remove();
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}
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// Create node data
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const nodes = [
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{ id: authorId, displayName: 'Current Author', isCenter: true },
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...limitedCoAuthors.map((coAuthor) => ({
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id: coAuthor.id,
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displayName: coAuthor.displayName,
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isCenter: false,
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})),
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];
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// Create link data
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const links = limitedCoAuthors.map((coAuthor) => ({
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source: authorId,
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target: coAuthor.id,
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collaborationCount: coAuthor.collaborationCount,
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}));
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// Simple force-directed layout without D3 dependency
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// Position nodes in a circle around center
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const centerX = GRAPH_WIDTH / 2;
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const centerY = GRAPH_HEIGHT / 2;
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const radius = Math.min(GRAPH_WIDTH, GRAPH_HEIGHT) / 3;
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const nodePositions = new Map<string, { x: number; y: number }>();
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// Center node
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nodePositions.set(authorId, { x: centerX, y: centerY });
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// Co-authors in circle
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limitedCoAuthors.forEach((coAuthor, index) => {
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const angle = (2 * Math.PI * index) / limitedCoAuthors.length;
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nodePositions.set(coAuthor.id, {
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x: centerX + radius * Math.cos(angle),
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y: centerY + radius * Math.sin(angle),
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});
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});
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// Draw links
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links.forEach((link) => {
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const sourcePos = nodePositions.get(link.source as string);
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const targetPos = nodePositions.get(link.target as string);
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if (!sourcePos || !targetPos) return;
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const line = document.createElementNS('http://www.w3.org/2000/svg', 'line');
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line.setAttribute('x1', sourcePos.x.toString());
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line.setAttribute('y1', sourcePos.y.toString());
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line.setAttribute('x2', targetPos.x.toString());
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line.setAttribute('y2', targetPos.y.toString());
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line.setAttribute('stroke', 'var(--mantine-color-gray-3)');
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line.setAttribute('stroke-width', '1');
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line.setAttribute('opacity', '0.5');
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svg.append(line);
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});
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// Draw nodes
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const cleanupFunctions: (() => void)[] = [];
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nodes.forEach((node) => {
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const pos = nodePositions.get(node.id);
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if (!pos) return;
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const g = document.createElementNS('http://www.w3.org/2000/svg', 'g');
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// Node circle
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const circle = document.createElementNS('http://www.w3.org/2000/svg', 'circle');
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circle.setAttribute('cx', pos.x.toString());
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circle.setAttribute('cy', pos.y.toString());
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circle.setAttribute('r', (node.isCenter ? NODE_RADIUS + 2 : NODE_RADIUS).toString());
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circle.setAttribute('fill', getEntityColor(node.id));
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circle.setAttribute('stroke', node.isCenter ? 'var(--mantine-color-blue-6)' : 'white');
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circle.setAttribute('stroke-width', node.isCenter ? '3' : '2');
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const style: CSSProperties = {
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cursor: 'pointer',
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transition: 'r 0.2s',
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};
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Object.entries(style).forEach(([key, value]) => {
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circle.style.setProperty(key, value);
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});
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// Hover effect
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const handleMouseEnter = () => {
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circle.setAttribute('r', (NODE_RADIUS + 3).toString());
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setHoveredNode(node.id);
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};
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const handleMouseLeave = () => {
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circle.setAttribute('r', (node.isCenter ? NODE_RADIUS + 2 : NODE_RADIUS).toString());
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setHoveredNode(null);
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};
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circle.addEventListener('mouseenter', handleMouseEnter);
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circle.addEventListener('mouseleave', handleMouseLeave);
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cleanupFunctions.push(() => {
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circle.removeEventListener('mouseenter', handleMouseEnter);
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circle.removeEventListener('mouseleave', handleMouseLeave);
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});
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// Click to navigate
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const handleClick = () => {
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window.location.href = `/authors/${node.id}`;
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};
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circle.addEventListener('click', handleClick);
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cleanupFunctions.push(() => {
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circle.removeEventListener('click', handleClick);
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});
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g.append(circle);
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// Node label (only for center and hovered nodes)
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if (node.isCenter || node.id === hoveredNode) {
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const text = document.createElementNS('http://www.w3.org/2000/svg', 'text');
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text.setAttribute('x', pos.x.toString());
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text.setAttribute('y', (pos.y + NODE_RADIUS + 15).toString());
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text.setAttribute('text-anchor', 'middle');
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text.setAttribute('font-size', '12');
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text.setAttribute('fill', 'var(--mantine-color-dimmed)');
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text.textContent = node.displayName.length > 20
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? `${node.displayName.slice(0, 20)}...`
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: node.displayName;
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g.append(text);
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}
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svg.append(g);
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});
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// Cleanup event listeners on unmount
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return () => {
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cleanupFunctions.forEach((cleanup) => cleanup());
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};
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}, [authorId, limitedCoAuthors, getEntityColor, hoveredNode]);
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return (
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<Paper p="xl" radius="xl">
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<Stack gap="lg">
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{/* Header */}
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<Group justify="space-between" align="center">
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<Group gap="sm">
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<IconNetwork size={ICON_SIZE.XL} color="var(--mantine-color-blue-6)" />
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<Title order={3}>Collaboration Network</Title>
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</Group>
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</Group>
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{/* Graph */}
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<Group justify="center">
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<svg
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ref={svgRef}
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width={GRAPH_WIDTH}
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height={GRAPH_HEIGHT}
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style={{
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border: '1px solid var(--mantine-color-gray-3)',
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borderRadius: '8px',
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backgroundColor: 'var(--mantine-color-gray-0)',
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maxWidth: '100%',
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height: 'auto',
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}}
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/>
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</Group>
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{/* Legend */}
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<Text size="sm" c="dimmed" ta="center">
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Showing {limitedCoAuthors.length} of {coAuthors.length} co-authors. Click nodes to navigate.
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</Text>
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</Stack>
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</Paper>
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);
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};

‎apps/web/src/components/entity-detail/index.ts‎

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export type { EntityTypeConfig } from './EntityTypeConfig';
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export { ENTITY_TYPE_CONFIGS, getMantineColor } from './EntityTypeConfig';
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export { CitationContextPreview } from './CitationContextPreview';
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export { CollaborationNetwork } from './CollaborationNetwork';
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export { ErrorState } from './ErrorState';
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export { LoadingState } from './LoadingState';
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export { NavigationTrail } from './NavigationTrail';

‎apps/web/src/routes/authors/$_.lazy.tsx‎

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import { createLazyFileRoute,useParams, useSearch } from "@tanstack/react-router";
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import { useState } from "react";
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import { type DetailViewMode, EntityDetailLayout, ErrorState, LoadingState, RelatedEntitiesSection } from "@/components/entity-detail";
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import { CollaborationNetwork,type DetailViewMode, EntityDetailLayout, ErrorState, LoadingState, RelatedEntitiesSection } from "@/components/entity-detail";
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import { ENTITY_TYPE_CONFIGS } from "@/components/entity-detail/EntityTypeConfig";
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import { IncomingRelationships } from "@/components/relationship/IncomingRelationships";
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import { OutgoingRelationships } from "@/components/relationship/OutgoingRelationships";
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onViewModeChange={setViewMode}
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data={author as Record<string, unknown>}>
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<RelationshipCounts incomingCount={incomingCount} outgoingCount={outgoingCount} />
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<CollaborationNetwork
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authorId={decodedAuthorId}
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author={author}
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/>
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<RelatedEntitiesSection
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incomingSections={incomingSections}
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outgoingSections={outgoingSections}

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