85 lines
3.2 KiB
JavaScript
85 lines
3.2 KiB
JavaScript
/**
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* @typedef {import('hast').Element} Element
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* @typedef {import('hast').ElementContent} ElementContent
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*/
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import { htmlToHast } from './html-transform-node.js';
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/**
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* Create new footnote section node based on footnoteArray mappings
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*
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* @param {{int: string}} citationDict
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* @param {{type: 'citation' | 'existing', oldId: string}[]} footnoteArray
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* @param {Element | undefined} footnoteSection
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* @return {Element}
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*/
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export const genFootnoteSection = (citationDict, footnoteArray, footnoteSection) => {
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/** @type {Element} */
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const list = {
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type: 'element',
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tagName: 'ol',
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properties: {},
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children: [{ type: 'text', value: '\n' }],
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};
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let oldFootnoteList;
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if (footnoteSection) {
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/** @type {Element} */ // @ts-ignore - for some reason, the type does not narrow even after filtering
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oldFootnoteList = footnoteSection.children.filter(n => (n.type == "element")).find((n) => (n.tagName === 'ol'));
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}
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for (const [idx, item] of footnoteArray.entries()) {
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const { type, oldId } = item;
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if (type === 'citation') {
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list.children.push({
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type: 'element',
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tagName: 'li',
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properties: { id: `user-content-fn-${idx + 1}` },
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children: [
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{
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type: 'element',
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tagName: 'p',
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properties: {},
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children: [
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htmlToHast(`<span>${citationDict[oldId]}</span>`),
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{
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type: 'element',
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tagName: 'a',
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properties: {
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href: `#user-content-fnref-${idx + 1}`,
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dataFootnoteBackref: true,
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className: ['data-footnote-backref'],
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ariaLabel: 'Back to content',
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},
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children: [{ type: 'text', value: '↩' }],
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},
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],
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},
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{ type: 'text', value: '\n' },
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],
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});
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}
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else if (type === 'existing') {
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// @ts-ignore
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const liNode = oldFootnoteList.children.find((n) => n.tagName === 'li' && n.properties.id === `user-content-fn-${oldId}`);
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liNode.properties.id = `user-content-fn-${idx + 1}`;
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const aNode = liNode.children[1].children.find((n) => n.tagName === 'a');
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aNode.properties.href = `#user-content-fnref-${idx + 1}`;
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list.children.push(liNode);
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}
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}
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/** @type {Element} */
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const newfootnoteSection = {
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type: 'element',
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tagName: 'section',
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properties: { dataFootnotes: true, className: ['footnotes'] },
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children: [
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{
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type: 'element',
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tagName: 'h2',
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properties: { className: ['sr-only'], id: 'footnote-label' },
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children: [{ type: 'text', value: 'Footnotes' }],
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},
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{ type: 'text', value: '\n' },
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list,
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],
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};
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return newfootnoteSection;
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};
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