50 lines
1.3 KiB
JavaScript
50 lines
1.3 KiB
JavaScript
const { JSDOM } = require("jsdom");
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const graphology = require("graphology");
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const { circular } = require('graphology-layout');
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const graphQueryString = `
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select p.number, p.html, p.time, a.contents
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from pages p
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left join attributes a on a.number = p.number
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where time >= (
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select max(s.time)
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from pages s
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where s.number = p.number
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)
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order by p.time desc
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`;
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function graphFromList(allTheStuff) {
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const graph = new graphology.Graph();
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for (const {number, html} of allTheStuff) {
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if (!graph.hasNode(number)) graph.addNode(number);
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}
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for (const {number, html, contents} of allTheStuff) {
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const { document } = (new JSDOM(html)).window;
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const links = document.querySelectorAll('a');
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links.forEach((link) => {
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const referent = link.href.replace("/","");
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graph.mergeEdge(number, referent, {color: "white"});
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});
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if (typeof contents?.verbs?.forEach === 'function') {
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contents?.verbs?.forEach((verbNumber) => {
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graph.mergeEdge(number, verbNumber, {color: "red"})
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});
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}
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if (typeof contents?.contents?.forEach === 'function') {
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contents?.contents?.forEach((nounNumber) => {
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graph.mergeEdge(number, nounNumber, {color: "green"});
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});
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}
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}
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circular.assign(graph);
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return graph;
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}
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module.exports = { graphFromList, graphQueryString }; |