const pluginNavigation = require("@11ty/eleventy-navigation")
const htmlmin = require("html-minifier");

module.exports = function (eleventyConfig) {

  eleventyConfig.addPlugin(pluginNavigation);

  eleventyConfig.addPassthroughCopy('pages/css');
  eleventyConfig.addPassthroughCopy('pages/content');
  eleventyConfig.addPassthroughCopy('assets/');
  eleventyConfig.addPassthroughCopy({
    "node_modules/chaffle/docs/chaffle.min.js": "javascript/chaffle.min.js",
  });

  if (process.env.ELEVENTY_ENV == 'prod') {
    eleventyConfig.addTransform("htmlmin", function (content, outputPath) {
      // Eleventy 1.0+: use this.inputPath and this.outputPath instead
      if (outputPath && outputPath.endsWith(".html")) {
        let minified = htmlmin.minify(content, {
          useShortDoctype: true,
          removeComments: true,
          collapseWhitespace: true
        });
        return minified;
      } else {
        return content;
      }
    });
  }

  eleventyConfig.addShortcode("year", () => {
    let year = new Date().getFullYear();
    return year.toString();
  });

  return {
    dir: {
      input: "pages"
    },
    dataTemplateEngine: 'njk',
    htmlTemplateEngine: 'njk',
    markdownTemplateEngine: 'njk',
  }

}