.eleventy.js

const fs = require("fs/promises");

module.exports = function (eleventyConfig) {
  // copy files
  eleventyConfig.addPassthroughCopy("src/results/manifest.json");
  eleventyConfig.addPassthroughCopy("src/results/pwabuilder-sw.js");
  eleventyConfig.addPassthroughCopy("_redirects");
  // eleventyConfig.addPassthroughCopy("cache");

  eleventyConfig.on("eleventy.after", async (arg) => {
    // don't run on serverless requests
    if (process.env.ELEVENTY_SERVERLESS) return;
    await fs.cp("./cache/", "./_site/cache/", {
      recursive: true,
    });
  });

  // these assets are handled by esbuild
  // eleventyConfig.addPassthroughCopy("src/preview/assets");
  // eleventyConfig.addPassthroughCopy("src/images");
  // if (process.env.ELEVENTY_PRODUCTION) {
  //   eleventyConfig.addPassthroughCopy("data");
  // }

  // enable async functions
  eleventyConfig.addNunjucksAsyncFilter("await", async (promise, callback) => {
    try {
      const result = await promise;
      callback(null, result);
    } catch (error) {
      callback(error);
    }
  });

  // add serverless plugin
  const { EleventyServerlessBundlerPlugin } = require("@11ty/eleventy");
  const redirectHandler = require("./utils/redirectHandlers.js");

  // add cascade data filter selectors for serverless functions
  eleventyConfig.dataFilterSelectors.add("headers");

  // base serverless config
  const serverlessConfig = {
    functionsDir: "./serverless/",
    copy: ["./utils/", "./cache/", "./data/"],
    excludeDependencies: [
      "color-contrast-calc",
      "extract-colors",
      "chroma-js",
      "simple-git",
    ],
  };

  // on demand builders for tournament results/superscore pages
  eleventyConfig.addPlugin(EleventyServerlessBundlerPlugin, {
    ...serverlessConfig,
    name: "odb",
    redirects: redirectHandler({ odb: true, force: false }),
  });
  // dynamic handler for POST requests for sciolyff previewer
  eleventyConfig.addPlugin(EleventyServerlessBundlerPlugin, {
    ...serverlessConfig,
    name: "dynamicpost",
    redirects: redirectHandler({ odb: false, force: true }),
  });

  // minify html
  const htmlmin = require("html-minifier-terser");
  eleventyConfig.addTransform("htmlmin", function (content) {
    if (this.outputPath && this.outputPath.endsWith(".html")) {
      const minified = htmlmin.minify(content, {
        // collapseBooleanAttributes: true,
        collapseWhitespace: true,
        conservativeCollapse: true,
        // removeComments: true,
        // sortAttributes: true,
        // sortClassName: true,
        // useShortDoctype: true,
        minifyCSS: this.outputPath.includes("/preview/"),
        minifyJS: this.outputPath.includes("/preview/"),
      });
      return minified;
    } else if (
      this.inputPath.endsWith("template.njk") ||
      this.inputPath.endsWith("superscore.njk") ||
      this.inputPath.endsWith("render.njk") ||
      (this.outputPath && this.outputPath.endsWith("tournaments.json"))
    ) {
      return content.replace(/\s+/g, " ");
    }

    return content;
  });

  return {
    markdownTemplateEngine: "njk",
    htmlTemplateEngine: "njk",
    dir: {
      input: "src",
    },
  };
};