eleventy.config.cjs

const { EleventyRenderPlugin } = require('@11ty/eleventy');
const SyntaxHighlightPlugin = require('@11ty/eleventy-plugin-syntaxhighlight');
const DirectoryOutputPlugin = require('@11ty/eleventy-plugin-directory-output');

const PfeAssetsPlugin = require('./docs/_plugins/pfe-assets.cjs');
const EmptyParagraphPlugin = require('./docs/_plugins/empty-p.cjs');
const CreateImportMapPlugin = require('./docs/_plugins/create-import-map.cjs');
const HTMLExamplePlugin = require('./docs/_plugins/html-example.cjs');
const CEMRenderPlugin = require('./docs/_plugins/cem-render.cjs');

const AnchorsPlugin = require('@patternfly/pfe-tools/11ty/plugins/anchors.cjs');
const CustomElementsManifestPlugin =
  require('@patternfly/pfe-tools/11ty/plugins/custom-elements-manifest.cjs');
const OrderTagsPlugin = require('@patternfly/pfe-tools/11ty/plugins/order-tags.cjs');
const TodosPlugin = require('@patternfly/pfe-tools/11ty/plugins/todos.cjs');
const TocPlugin = require('@patternfly/pfe-tools/11ty/plugins/table-of-contents.cjs');

const markdownItAnchor = require('markdown-it-anchor');

const { $ } = require('execa');
const path = require('node:path');

/** @param {import('@11ty/eleventy/src/UserConfig')} eleventyConfig */
module.exports = function(eleventyConfig) {
  eleventyConfig.amendLibrary('md', md => md.use(markdownItAnchor));

  eleventyConfig.setQuietMode(true);

  eleventyConfig.setWatchThrottleWaitTime(500);

  eleventyConfig.addPlugin(EleventyRenderPlugin);

  /** Table of Contents Shortcode */
  eleventyConfig.addPlugin(TocPlugin, { tags: ['h2', 'h3', 'h4'] });

  /** Copy and manage site assets from the monorepo */
  eleventyConfig.addPlugin(PfeAssetsPlugin);

  /** Generate and consume custom elements manifests */
  eleventyConfig.addPlugin(CustomElementsManifestPlugin);

  eleventyConfig.on('eleventy.before', async function() {
    const projectRoot = path.join(__dirname);
    await $({ cwd: path.join(projectRoot, 'elements') })`cem generate`;
    await $({ cwd: path.join(projectRoot, 'core', 'pfe-core') })`cem generate`;
  });


  /** Render docs based on custom elements manifests */
  eleventyConfig.addPlugin(CEMRenderPlugin);

  /** Collections to organize alphabetically instead of by date */
  eleventyConfig.addPlugin(OrderTagsPlugin, { tags: ['component'], order: 'alphabetical' });

  /** Collections to organize by order instead of date */
  eleventyConfig.addPlugin(OrderTagsPlugin, { tags: ['develop'] });

  /** list todos */
  eleventyConfig.addPlugin(TodosPlugin);

  /** format date strings */
  eleventyConfig.addFilter('prettyDate', function(dateStr, options = {}) {
    const { dateStyle = 'medium' } = options;
    return new Intl.DateTimeFormat('en-US', { dateStyle })
        .format(new Date(dateStr));
  });

  /** fancy syntax highlighting with diff support */
  eleventyConfig.addPlugin(SyntaxHighlightPlugin, {
    init() {
      const register = require('prismjs/components/index');
      register([
        'html',
        'regex',
        'js-templates',
        'javascript',
      ]);
    },
  });

  /** Strip empty paragraphs */
  eleventyConfig.addPlugin(EmptyParagraphPlugin);

  /** Create import maps from script tags */
  eleventyConfig.addPlugin(CreateImportMapPlugin);

  /** Add IDs to heading elements */
  eleventyConfig.addPlugin(AnchorsPlugin, {
    exclude: /\/components\/.*\/demo\//,
    formatter($, existingids) {
      if (
        !existingids.includes($.attr('id'))
        && $.attr('slot')
        && $.closest('pf-card')
      ) {
        return null;
      } else {
        return eleventyConfig.javascript.functions
            .slug($.text())
            .replace(/[&,+()$~%.'":*?!<>{}]/g, '');
      }
    },
  });

  if (!process.argv.some(arg =>
    arg.match(/--((w)(atch)?)|((s)(erve))?/))) {
    eleventyConfig.addPlugin(DirectoryOutputPlugin, {
      // Customize columns
      columns: {
        filesize: true, // Use `false` to disable
        benchmark: true, // Use `false` to disable
      },

      // Will show in yellow if greater than this number of bytes
      warningFileSize: 400 * 1000,
    });
  }

  eleventyConfig.addPlugin(HTMLExamplePlugin);

  return {
    dir: {
      input: './docs',
    },
    markdownTemplateEngine: 'njk',
    templateFormats: [
      '11ty.js',
      'html',
      'njk',
      'md',
      'css',
      'js',
      'svg',
      'png',
    ],
  };
};