limina1
1 year ago
committed by
GitHub
8 changed files with 772 additions and 69 deletions
@ -0,0 +1,588 @@
@@ -0,0 +1,588 @@
|
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<script lang="ts"> |
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import { onMount } from "svelte"; |
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import * as d3 from "d3"; |
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import type { NDKEvent } from "@nostr-dev-kit/ndk"; |
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|
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export let events: NDKEvent[] = []; |
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let svg: SVGSVGElement; |
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let isDarkMode = false; |
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const nodeRadius = 20; |
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const linkDistance = 10; |
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const arrowDistance = 10; |
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const warmupClickEnergy = 0.9; // Energy to restart simulation on drag |
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let container: HTMLDivElement; |
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let width: number = 1000; |
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let height: number = 600; |
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let windowHeight: number; |
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$: graphHeight = windowHeight ? Math.max(windowHeight * 0.2, 400) : 400; |
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$: if (container) { |
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width = container.clientWidth || width; |
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height = container.clientHeight || height; |
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} |
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interface NetworkNode extends d3.SimulationNodeDatum { |
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id: string; |
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event?: NDKEvent; |
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index?: number; |
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isContainer: boolean; |
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title: string; |
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content: string; |
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author: string; |
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type: "Index" | "Content"; |
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x?: number; |
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y?: number; |
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fx?: number | null; |
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fy?: number | null; |
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vx?: number; |
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vy?: number; |
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} |
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interface NetworkLink extends d3.SimulationLinkDatum<NetworkNode> { |
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source: NetworkNode; |
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target: NetworkNode; |
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isSequential: boolean; |
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} |
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function createEventMap(events: NDKEvent[]): Map<string, NDKEvent> { |
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return new Map(events.map((event) => [event.id, event])); |
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} |
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function updateNodeVelocity( |
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node: NetworkNode, |
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deltaVx: number, |
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deltaVy: number, |
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) { |
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if (typeof node.vx === "number" && typeof node.vy === "number") { |
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node.vx = node.vx - deltaVx; |
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node.vy = node.vy - deltaVy; |
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} |
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} |
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function applyGlobalLogGravity( |
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node: NetworkNode, |
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centerX: number, |
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centerY: number, |
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alpha: number, |
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) { |
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const dx = (node.x ?? 0) - centerX; |
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const dy = (node.y ?? 0) - centerY; |
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const distance = Math.sqrt(dx * dx + dy * dy); |
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if (distance === 0) return; |
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const force = Math.log(distance + 1) * 0.05 * alpha; |
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updateNodeVelocity(node, (dx / distance) * force, (dy / distance) * force); |
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} |
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function applyConnectedGravity( |
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node: NetworkNode, |
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links: NetworkLink[], |
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alpha: number, |
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) { |
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const connectedNodes = links |
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.filter( |
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(link) => link.source.id === node.id || link.target.id === node.id, |
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) |
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.map((link) => (link.source.id === node.id ? link.target : link.source)); |
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if (connectedNodes.length === 0) return; |
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const cogX = d3.mean(connectedNodes, (n) => n.x); |
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const cogY = d3.mean(connectedNodes, (n) => n.y); |
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if (cogX === undefined || cogY === undefined) return; |
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const dx = (node.x ?? 0) - cogX; |
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const dy = (node.y ?? 0) - cogY; |
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const distance = Math.sqrt(dx * dx + dy * dy); |
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if (distance === 0) return; |
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const force = distance * 0.3 * alpha; |
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updateNodeVelocity(node, (dx / distance) * force, (dy / distance) * force); |
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} |
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function getNode( |
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id: string, |
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nodeMap: Map<string, NetworkNode>, |
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event?: NDKEvent, |
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index?: number, |
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): NetworkNode | null { |
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if (!id) return null; |
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if (!nodeMap.has(id)) { |
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const node: NetworkNode = { |
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id, |
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event, |
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index, |
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isContainer: event?.kind === 30040, |
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title: event?.getMatchingTags("title")?.[0]?.[1] || "Untitled", |
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content: event?.content || "", |
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author: event?.pubkey || "", |
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type: event?.kind === 30040 ? "Index" : "Content", |
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x: width / 2 + (Math.random() - 0.5) * 100, |
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y: height / 2 + (Math.random() - 0.5) * 100, |
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}; |
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nodeMap.set(id, node); |
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} |
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return nodeMap.get(id) || null; |
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} |
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function getEventColor(eventId: string): string { |
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const num = parseInt(eventId.slice(0, 4), 16); |
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const hue = num % 360; |
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const saturation = 70; |
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const lightness = 75; |
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return `hsl(${hue}, ${saturation}%, ${lightness}%)`; |
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} |
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function generateGraph(events: NDKEvent[]): { |
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nodes: NetworkNode[]; |
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links: NetworkLink[]; |
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} { |
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const nodes: NetworkNode[] = []; |
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const links: NetworkLink[] = []; |
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const nodeMap = new Map<string, NetworkNode>(); |
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// Create event lookup map - O(n) operation done once |
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const eventMap = createEventMap(events); |
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const indexEvents = events.filter((e) => e.kind === 30040); |
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indexEvents.forEach((index) => { |
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if (!index.id) return; |
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const contentRefs = index.getMatchingTags("e"); |
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const sourceNode = getNode(index.id, nodeMap, index); |
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if (!sourceNode) return; |
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nodes.push(sourceNode); |
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contentRefs.forEach((tag, idx) => { |
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if (!tag[1]) return; |
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// O(1) lookup instead of O(n) search |
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const targetEvent = eventMap.get(tag[1]); |
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if (!targetEvent) return; |
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const targetNode = getNode(tag[1], nodeMap, targetEvent, idx); |
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if (!targetNode) return; |
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nodes.push(targetNode); |
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const prevNodeId = |
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idx === 0 ? sourceNode.id : contentRefs[idx - 1]?.[1]; |
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const prevNode = nodeMap.get(prevNodeId); |
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if (prevNode && targetNode) { |
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links.push({ |
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source: prevNode, |
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target: targetNode, |
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isSequential: true, |
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}); |
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} |
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}); |
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}); |
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return { nodes, links }; |
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} |
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function setupDragHandlers( |
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simulation: d3.Simulation<NetworkNode, NetworkLink>, |
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) { |
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// Create drag behavior with proper typing |
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const dragBehavior = d3 |
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.drag<SVGGElement, NetworkNode>() |
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.on( |
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"start", |
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( |
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event: d3.D3DragEvent<SVGGElement, NetworkNode, NetworkNode>, |
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d: NetworkNode, |
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) => { |
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// Warm up simulation when drag starts |
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if (!event.active) |
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simulation.alphaTarget(warmupClickEnergy).restart(); |
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// Fix node position during drag |
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d.fx = d.x; |
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d.fy = d.y; |
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}, |
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) |
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.on( |
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"drag", |
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( |
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event: d3.D3DragEvent<SVGGElement, NetworkNode, NetworkNode>, |
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d: NetworkNode, |
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) => { |
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// Update fixed position to drag position |
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d.fx = event.x; |
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d.fy = event.y; |
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}, |
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) |
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.on( |
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"end", |
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( |
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event: d3.D3DragEvent<SVGGElement, NetworkNode, NetworkNode>, |
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d: NetworkNode, |
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) => { |
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// Cool down simulation when drag ends |
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if (!event.active) simulation.alphaTarget(0); |
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// Release fixed position, allowing forces to take over |
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d.fx = null; |
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d.fy = null; |
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}, |
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); |
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return dragBehavior; |
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} |
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function drawNetwork() { |
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if (!svg || !events?.length) return; |
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const { nodes, links } = generateGraph(events); |
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if (!nodes.length) return; |
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const svgElement = d3.select(svg).attr("viewBox", `0 0 ${width} ${height}`); |
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// Set up zoom behavior |
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let g = svgElement.append("g"); |
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const zoom = d3 |
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.zoom<SVGSVGElement, unknown>() |
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.scaleExtent([0.1, 9]) |
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.on("zoom", (event) => { |
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g.attr("transform", event.transform); |
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}); |
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svgElement.call(zoom); |
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if (g.empty()) { |
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g = svgElement.append("g"); |
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// Define arrow marker with black fill |
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} |
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svgElement.select("defs").remove(); |
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const defs = svgElement.append("defs"); |
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defs |
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.append("marker") |
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.attr("id", "arrowhead") |
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.attr("markerUnits", "strokeWidth") // Added this |
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.attr("viewBox", "-10 -5 10 10") |
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.attr("refX", 0) |
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.attr("refY", 0) |
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.attr("markerWidth", 5) |
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.attr("markerHeight", 5) |
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.attr("orient", "auto") |
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.append("path") |
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.attr("d", "M -10 -5 L 0 0 L -10 5 z") |
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.attr("class", "network-link-leather") |
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.attr("fill", "none") |
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.attr("stroke-width", 1); // Added stroke |
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// Force simulation setup |
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const simulation = d3 |
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.forceSimulation<NetworkNode>(nodes) |
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.force( |
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"link", |
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d3 |
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.forceLink<NetworkNode, NetworkLink>(links) |
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.id((d) => d.id) |
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.distance(linkDistance * 0.1), |
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) |
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.force("collide", d3.forceCollide<NetworkNode>().radius(nodeRadius * 4)); |
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simulation.on("end", () => { |
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// Get the bounds of the graph |
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const bounds = g.node()?.getBBox(); |
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if (bounds) { |
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const dx = bounds.width; |
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const dy = bounds.height; |
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const x = bounds.x; |
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const y = bounds.y; |
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// Calculate scale to fit |
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const scale = 1.25 / Math.max(dx / width, dy / height); |
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const translate = [ |
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width / 2 - scale * (x + dx / 2), |
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height / 2 - scale * (y + dy / 2), |
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]; |
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// Apply the initial transform |
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svgElement |
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.transition() |
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.duration(750) |
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.call( |
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zoom.transform, |
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d3.zoomIdentity.translate(translate[0], translate[1]).scale(scale), |
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); |
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} |
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}); |
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const dragHandler = setupDragHandlers(simulation); |
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// Create links |
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// First, make sure we're selecting and creating links correctly |
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const link = g |
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.selectAll("path") // Changed from "path.link" to just "path" |
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.data(links) |
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.join( |
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(enter) => |
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enter |
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.append("path") |
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.attr("stroke-width", 2) |
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.attr("marker-end", "url(#arrowhead)") // This should now be applied |
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.attr("class", "network-link-leather"), // Add class if needed |
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(update) => update, |
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(exit) => exit.remove(), |
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); |
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|
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// Create nodes |
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const node = g |
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.selectAll<SVGGElement, NetworkNode>("g.node") |
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.data(nodes, (d: NetworkNode) => d.id) |
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.join( |
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(enter) => { |
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const nodeEnter = enter |
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.append("g") |
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.attr("class", "node network-node-leather") |
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.call(dragHandler); |
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// add drag circle |
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nodeEnter |
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.append("circle") |
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.attr("r", nodeRadius * 2.5) |
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.attr("fill", "transparent") |
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.attr("stroke", "transparent") |
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.style("cursor", "move"); |
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// add visual circle, stroke based on current theme |
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nodeEnter |
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.append("circle") |
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.attr("r", nodeRadius) |
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.attr("class", (d: NetworkNode) => |
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!d.isContainer |
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? "network-node-leather network-node-content" |
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: "network-node-leather", |
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) |
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.attr("stroke-width", 2); |
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|
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// add text labels |
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nodeEnter |
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.append("text") |
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.attr("dy", "0.35em") |
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.attr("text-anchor", "middle") |
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.attr("fill", "black") |
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.attr("font-size", "12px"); |
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// .attr("font-weight", "bold"); |
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return nodeEnter; |
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}, |
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(update) => update, |
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(exit) => exit.remove(), |
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); |
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// Add text labels |
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node |
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.select("circle:nth-child(2)") |
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.attr("fill", (d: NetworkNode) => |
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!d.isContainer |
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? isDarkMode |
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? "#FFFFFF" |
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: "network-link-leather" |
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: getEventColor(d.id), |
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); |
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node.select("text").text((d: NetworkNode) => (d.isContainer ? "I" : "C")); |
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// Add tooltips |
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const tooltip = d3 |
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.select("body") |
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.append("div") |
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.attr( |
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"class", |
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"tooltip-leather fixed hidden p-4 rounded shadow-lg " + |
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"bg-primary-0 dark:bg-primary-800 " + |
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"border border-gray-200 dark:border-gray-800 " + |
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"p-4 rounded shadow-lg border border-gray-200 dark:border-gray-800 " + |
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"transition-colors duration-200", |
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) |
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.style("z-index", 1000); |
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node |
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.on("mouseover", function (event, d) { |
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tooltip |
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.style("display", "block") |
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.html( |
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` |
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<div class="space-y-2"> |
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<div class="font-bold text-base">${d.title}</div> |
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<div class="text-gray-600 dark:text-gray-400 text-sm"> |
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${d.type} (${d.isContainer ? "30040" : "30041"}) |
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</div> |
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<div class="text-gray-600 dark:text-gray-400 text-sm overflow-hidden text-ellipsis"> |
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ID: ${d.id} |
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</div> |
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${ |
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d.content |
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? ` |
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<div class="mt-2 text-xs bg-gray-100 dark:bg-gray-800 p-2 rounded overflow-auto max-h-40"> |
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${d.content} |
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</div> |
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` |
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: "" |
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} |
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</div> |
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`, |
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) |
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.style("left", event.pageX - 10 + "px") |
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.style("top", event.pageY + 10 + "px"); |
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}) |
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.on("mousemove", function (event) { |
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tooltip |
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.style("left", event.pageX + 10 + "px") |
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.style("top", event.pageY - 10 + "px"); |
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}) |
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.on("mouseout", () => { |
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tooltip.style("display", "none"); |
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}); |
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|
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// Handle simulation ticks |
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simulation.on("tick", () => { |
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nodes.forEach((node) => { |
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applyGlobalLogGravity(node, width / 2, height / 2, simulation.alpha()); |
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applyConnectedGravity(node, links, simulation.alpha()); |
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}); |
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link.attr("d", (d) => { |
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const dx = d.target.x! - d.source.x!; |
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const dy = d.target.y! - d.source.y!; |
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const angle = Math.atan2(dy, dx); |
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|
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const sourceGap = nodeRadius; |
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const targetGap = nodeRadius + arrowDistance; // Increased gap for arrowhead |
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|
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const startX = d.source.x! + sourceGap * Math.cos(angle); |
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const startY = d.source.y! + sourceGap * Math.sin(angle); |
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const endX = d.target.x! - targetGap * Math.cos(angle); |
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const endY = d.target.y! - targetGap * Math.sin(angle); |
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|
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return `M${startX},${startY}L${endX},${endY}`; |
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}); |
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node.attr("transform", (d) => `translate(${d.x},${d.y})`); |
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}); |
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} |
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|
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onMount(() => { |
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isDarkMode = document.body.classList.contains("dark"); |
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// Add window resize listener |
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const handleResize = () => { |
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windowHeight = window.innerHeight; |
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}; |
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|
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// Initial resize |
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windowHeight = window.innerHeight; |
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window.addEventListener("resize", handleResize); |
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|
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// Watch for theme changes |
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const themeObserver = new MutationObserver((mutations) => { |
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mutations.forEach((mutation) => { |
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if (mutation.attributeName === "class") { |
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const newIsDarkMode = document.body.classList.contains("dark"); |
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if (newIsDarkMode !== isDarkMode) { |
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isDarkMode = newIsDarkMode; |
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// drawNetwork(); |
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} |
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} |
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}); |
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}); |
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|
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const resizeObserver = new ResizeObserver((entries) => { |
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for (const entry of entries) { |
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width = entry.contentRect.width; |
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height = graphHeight; |
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} |
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|
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// first remove all nodes and links |
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d3.select(svg).selectAll("*").remove(); |
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drawNetwork(); |
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}); |
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|
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// Start observers |
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themeObserver.observe(document.documentElement, { |
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attributes: true, |
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attributeFilter: ["class"], |
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}); |
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resizeObserver.observe(container); |
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// Clean up |
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return () => { |
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themeObserver.disconnect(); |
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resizeObserver.disconnect(); |
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}; |
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}); |
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// Reactive redaw |
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$: { |
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if (svg && events?.length) { |
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drawNetwork(); |
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} |
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} |
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</script> |
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|
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<div |
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class="flex flex-col w-full h-[calc(100vh-120px)] min-h-[400px] max-h-[900px] p-4 gap-4" |
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> |
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<div class="h-[calc(100%-130px)] min-h-[300px]" bind:this={container}> |
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<svg |
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bind:this={svg} |
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class="w-full h-full border border-gray-300 dark:border-gray-700 rounded" |
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/> |
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</div> |
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<!-- Legend --> |
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<div class="leather-legend"> |
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<h3 class="text-lg font-bold mb-2 h-leather">Legend</h3> |
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<ul class="legend-list"> |
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<li class="legend-item"> |
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<div class="legend-icon"> |
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<span |
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class="legend-circle" |
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style="background-color: hsl(200, 70%, 75%)" |
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> |
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</span> |
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<span class="legend-letter">I</span> |
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</div> |
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<span>Index events (kind 30040) - Each with a unique pastel color</span> |
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</li> |
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|
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<li class="legend-item"> |
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<div class="legend-icon"> |
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<span class="legend-circle content"></span> |
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<span class="legend-letter">C</span> |
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</div> |
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<span>Content events (kind 30041) - Publication sections</span> |
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</li> |
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|
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<li class="legend-item"> |
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<svg class="w-6 h-6 mr-2" viewBox="0 0 24 24"> |
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<path d="M4 12h16M16 6l6 6-6 6" class="network-link-leather" /> |
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</svg> |
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<span>Arrows indicate reading/sequence order</span> |
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</li> |
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</ul> |
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</div> |
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</div> |
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|
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<style> |
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.legend-list { |
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@apply list-disc pl-5 space-y-2 text-gray-800 dark:text-gray-300; |
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} |
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|
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.legend-item { |
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@apply flex items-center; |
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} |
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|
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.legend-icon { |
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@apply relative w-6 h-6 mr-2; |
||||
} |
||||
|
||||
.legend-circle { |
||||
@apply absolute inset-0 rounded-full border-2 border-black; |
||||
} |
||||
|
||||
.legend-circle.content { |
||||
@apply bg-gray-700 dark:bg-gray-300; |
||||
background-color: #d6c1a8; |
||||
} |
||||
|
||||
.legend-letter { |
||||
@apply absolute inset-0 flex items-center justify-center text-black text-xs; |
||||
} |
||||
</style> |
||||
@ -1,12 +1,110 @@
@@ -1,12 +1,110 @@
|
||||
<script lang='ts'> |
||||
import { Heading } from "flowbite-svelte"; |
||||
<script lang="ts"> |
||||
import { onMount } from "svelte"; |
||||
import EventNetwork from "$lib/components/EventNetwork.svelte"; |
||||
import { ndk } from "$lib/ndk"; |
||||
import type { NDKEvent } from "@nostr-dev-kit/ndk"; |
||||
import { filterValidIndexEvents } from "$lib/utils"; |
||||
|
||||
let events: NDKEvent[] = []; |
||||
let loading = true; |
||||
let error: string | null = null; |
||||
|
||||
async function fetchEvents() { |
||||
try { |
||||
loading = true; |
||||
error = null; |
||||
|
||||
// Fetch both index and content events |
||||
const indexEvents = await $ndk.fetchEvents( |
||||
{ kinds: [30040] }, |
||||
{ |
||||
groupable: true, |
||||
skipVerification: false, |
||||
skipValidation: false, |
||||
}, |
||||
); |
||||
|
||||
// Filter valid index events according to NIP-62 |
||||
const validIndexEvents = filterValidIndexEvents(indexEvents); |
||||
|
||||
// Get all the content event IDs referenced by the index events |
||||
const contentEventIds = new Set<string>(); |
||||
validIndexEvents.forEach((event) => { |
||||
event.getMatchingTags("e").forEach((tag) => { |
||||
contentEventIds.add(tag[1]); |
||||
}); |
||||
}); |
||||
|
||||
// Fetch the referenced content events |
||||
const contentEvents = await $ndk.fetchEvents( |
||||
{ |
||||
kinds: [30041], |
||||
ids: Array.from(contentEventIds), |
||||
}, |
||||
{ |
||||
groupable: true, |
||||
skipVerification: false, |
||||
skipValidation: false, |
||||
}, |
||||
); |
||||
|
||||
// Combine both sets of events |
||||
events = [...Array.from(validIndexEvents), ...Array.from(contentEvents)]; |
||||
} catch (e) { |
||||
console.error("Error fetching events:", e); |
||||
error = e.message; |
||||
} finally { |
||||
loading = false; |
||||
} |
||||
} |
||||
|
||||
onMount(() => { |
||||
fetchEvents(); |
||||
}); |
||||
</script> |
||||
|
||||
<div class='w-full flex justify-center'> |
||||
<main class='main-leather flex flex-col space-y-4 max-w-2xl w-full mt-4 mb-4'> |
||||
<Heading tag='h1' class='h-leather mb-2'>Visualize</Heading> |
||||
<p>Coming soon.</p> |
||||
</main> |
||||
<div class="leather w-full p-4"> |
||||
<h1 class="h-leather text-2xl font-bold mb-4">Publication Network</h1> |
||||
|
||||
{#if loading} |
||||
<div class="flex justify-center items-center h-64"> |
||||
<div role="status"> |
||||
<svg |
||||
aria-hidden="true" |
||||
class="w-8 h-8 text-gray-200 animate-spin dark:text-gray-600 fill-blue-600" |
||||
viewBox="0 0 100 101" |
||||
fill="none" |
||||
xmlns="http://www.w3.org/2000/svg" |
||||
> |
||||
<path |
||||
d="M100 50.5908C100 78.2051 77.6142 100.591 50 100.591C22.3858 100.591 0 78.2051 0 50.5908C0 22.9766 22.3858 0.59082 50 0.59082C77.6142 0.59082 100 22.9766 100 50.5908ZM9.08144 50.5908C9.08144 73.1895 27.4013 91.5094 50 91.5094C72.5987 91.5094 90.9186 73.1895 90.9186 50.5908C90.9186 27.9921 72.5987 9.67226 50 9.67226C27.4013 9.67226 9.08144 27.9921 9.08144 50.5908Z" |
||||
fill="currentColor" |
||||
/> |
||||
<path |
||||
d="M93.9676 39.0409C96.393 38.4038 97.8624 35.9116 97.0079 33.5539C95.2932 28.8227 92.871 24.3692 89.8167 20.348C85.8452 15.1192 80.8826 10.7238 75.2124 7.41289C69.5422 4.10194 63.2754 1.94025 56.7698 1.05124C51.7666 0.367541 46.6976 0.446843 41.7345 1.27873C39.2613 1.69328 37.813 4.19778 38.4501 6.62326C39.0873 9.04874 41.5694 10.4717 44.0505 10.1071C47.8511 9.54855 51.7191 9.52689 55.5402 10.0491C60.8642 10.7766 65.9928 12.5457 70.6331 15.2552C75.2735 17.9648 79.3347 21.5619 82.5849 25.841C84.9175 28.9121 86.7997 32.2913 88.1811 35.8758C89.083 38.2158 91.5421 39.6781 93.9676 39.0409Z" |
||||
fill="currentFill" |
||||
/> |
||||
</svg> |
||||
<span class="sr-only">Loading...</span> |
||||
</div> |
||||
</div> |
||||
{:else if error} |
||||
<div |
||||
class="p-4 mb-4 text-sm text-red-800 rounded-lg bg-red-50 dark:bg-red-900 dark:text-red-400" |
||||
role="alert" |
||||
> |
||||
<p>Error loading network: {error}</p> |
||||
<button |
||||
type="button" |
||||
class="text-white bg-red-700 hover:bg-red-800 focus:ring-4 focus:ring-red-300 font-medium rounded-lg text-sm px-5 py-2.5 mt-2 dark:bg-red-600 dark:hover:bg-red-700 focus:outline-none dark:focus:ring-red-800" |
||||
on:click={fetchEvents} |
||||
> |
||||
Retry |
||||
</button> |
||||
</div> |
||||
{:else} |
||||
<EventNetwork {events} /> |
||||
|
||||
<div class="mt-8 prose dark:prose-invert max-w-none"></div> |
||||
{/if} |
||||
</div> |
||||
Loading…
Reference in new issue