55 lines
1.4 KiB
JavaScript
55 lines
1.4 KiB
JavaScript
import { promises as fs } from "fs";
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import path from "path";
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import { STATIC_DIR, SUBJECTS } from "./constants.js";
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export const cache = new Map();
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async function populateResources() {
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const filenamesRaw = await fs.readdir(STATIC_DIR);
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const filenames = filenamesRaw
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.filter((file) => file.endsWith(".md"))
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.map((file) => file.replace(".md", ""));
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const topicResources = {};
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filenames.forEach((resourceId) => {
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const parts = resourceId.split("_");
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const subjectPart = parts[1];
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const topicPart = parts[2];
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const topicId = `${subjectPart}_${topicPart}`;
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topicResources[topicId] ||= [];
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topicResources[topicId].push({
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id: resourceId,
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filename: `${resourceId}.md`,
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version: parseInt(parts[3].substring(2)),
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});
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});
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Object.values(topicResources).forEach((resources) => {
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resources.sort((a, b) => a.version - b.version);
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});
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Object.values(SUBJECTS).forEach((subject) => {
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Object.values(subject.topics).forEach((topic) => {
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if (topic.id in topicResources) {
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topic.resources = topicResources[topic.id];
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}
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});
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});
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}
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export async function getStructure({ refresh = false } = {}) {
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const structureKey = "structure";
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if (refresh) {
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cache.delete(structureKey);
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}
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if (!cache.has(structureKey)) {
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await populateResources();
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cache.set(structureKey, SUBJECTS);
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}
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return cache.get(structureKey);
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}
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