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path: root/web_src/js/features/citation.ts
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import $ from 'jquery';
import {getCurrentLocale} from '../utils.ts';

const {pageData} = window.config;

async function initInputCitationValue(citationCopyApa, citationCopyBibtex) {
  const [{Cite, plugins}] = await Promise.all([
    import(/* webpackChunkName: "citation-js-core" */'@citation-js/core'),
    import(/* webpackChunkName: "citation-js-formats" */'@citation-js/plugin-software-formats'),
    import(/* webpackChunkName: "citation-js-bibtex" */'@citation-js/plugin-bibtex'),
    import(/* webpackChunkName: "citation-js-csl" */'@citation-js/plugin-csl'),
  ]);
  const {citationFileContent} = pageData;
  const config = plugins.config.get('@bibtex');
  config.constants.fieldTypes.doi = ['field', 'literal'];
  config.constants.fieldTypes.version = ['field', 'literal'];
  const citationFormatter = new Cite(citationFileContent);
  const lang = getCurrentLocale() || 'en-US';
  const apaOutput = citationFormatter.format('bibliography', {template: 'apa', lang});
  const bibtexOutput = citationFormatter.format('bibtex', {lang});
  citationCopyBibtex.setAttribute('data-text', bibtexOutput);
  citationCopyApa.setAttribute('data-text', apaOutput);
}

export async function initCitationFileCopyContent() {
  const defaultCitationFormat = 'apa'; // apa or bibtex

  if (!pageData.citationFileContent) return;

  const citationCopyApa = document.querySelector('#citation-copy-apa');
  const citationCopyBibtex = document.querySelector('#citation-copy-bibtex');
  const inputContent = document.querySelector('#citation-copy-content');

  if ((!citationCopyApa && !citationCopyBibtex) || !inputContent) return;

  const updateUi = () => {
    const isBibtex = (localStorage.getItem('citation-copy-format') || defaultCitationFormat) === 'bibtex';
    const copyContent = (isBibtex ? citationCopyBibtex : citationCopyApa).getAttribute('data-text');
    inputContent.value = copyContent;
    citationCopyBibtex.classList.toggle('primary', isBibtex);
    citationCopyApa.classList.toggle('primary', !isBibtex);
  };

  document.querySelector('#cite-repo-button')?.addEventListener('click', async (e) => {
    const dropdownBtn = e.target.closest('.ui.dropdown.button');
    dropdownBtn.classList.add('is-loading');

    try {
      try {
        await initInputCitationValue(citationCopyApa, citationCopyBibtex);
      } catch (e) {
        console.error(`initCitationFileCopyContent error: ${e}`, e);
        return;
      }
      updateUi();

      citationCopyApa.addEventListener('click', () => {
        localStorage.setItem('citation-copy-format', 'apa');
        updateUi();
      });

      citationCopyBibtex.addEventListener('click', () => {
        localStorage.setItem('citation-copy-format', 'bibtex');
        updateUi();
      });

      inputContent.addEventListener('click', () => {
        inputContent.select();
      });
    } finally {
      dropdownBtn.classList.remove('is-loading');
    }

    $('#cite-repo-modal').modal('show');
  });
}