.eleventy.js

const pluginRss = require('@11ty/eleventy-plugin-rss')
const markdownIt = require('markdown-it')

const filters = require('./utils/filters.js')
const transforms = require('./utils/transforms.js')
const shortcodes = require('./utils/shortcodes.js')
const iconsprite = require('./utils/iconsprite.js')

module.exports = function (config) {
  // Plugins
  config.addPlugin(pluginRss)

  // Filters
  Object.keys(filters).forEach(filterName => {
    config.addFilter(filterName, filters[filterName])
  })

  // Transforms
  Object.keys(transforms).forEach(transformName => {
    config.addTransform(transformName, transforms[transformName])
  })

  // Shortcodes
  Object.keys(shortcodes).forEach(shortcodeName => {
    config.addShortcode(shortcodeName, shortcodes[shortcodeName])
  })

  // Icon Sprite
  config.addNunjucksAsyncShortcode('iconsprite', iconsprite)

  // Asset Watch Targets
  config.addWatchTarget('./src/assets')

  // Markdown
  config.setLibrary(
    'md',
    markdownIt({
      html: true,
      breaks: true,
      linkify: true,
      typographer: true,
    }),
  )

  // Layouts
  config.addLayoutAlias('base', 'base.njk')
  config.addLayoutAlias('resume', 'resume.njk')

  // Collections
  const collections = ['work', 'education']
  collections.forEach(name => {
    config.addCollection(name, function (collection) {
      const folderRegex = new RegExp(`\/${name}\/`)
      const inEntryFolder = item => item.inputPath.match(folderRegex) !== null

      const byStartDate = (a, b) => {
        if (a.data.start && b.data.start) {
          return a.data.start - b.data.start
        }
        return 0
      }

      return collection.getAllSorted().filter(inEntryFolder).sort(byStartDate)
    })
  })

  // Pass-through files
  config.addPassthroughCopy('src/robots.txt')
  config.addPassthroughCopy('src/assets/images')
  config.addPassthroughCopy('src/assets/fonts')

  // Deep-Merge
  config.setDataDeepMerge(true)

  // Base Config
  return {
    dir: {
      input: 'src',
      output: 'dist',
      includes: 'includes',
      layouts: 'layouts',
      data: 'data',
    },
    templateFormats: ['njk', 'md', '11ty.js'],
    htmlTemplateEngine: 'njk',
    markdownTemplateEngine: 'njk',
  }
}