module.exports = function (eleventyConfig) {
  // Pass static assets through to _site/
  eleventyConfig.addPassthroughCopy("src/css");
  eleventyConfig.addPassthroughCopy("src/js");
  eleventyConfig.addPassthroughCopy({ "assets": "assets" });

  // Format phone number as a tel: href (strips everything but digits and +)
  eleventyConfig.addFilter("telHref", (phone) =>
    "tel:" + phone.replace(/[^0-9+]/g, "")
  );

  // Current year for footer copyright
  eleventyConfig.addFilter("currentYear", () =>
    new Date().getFullYear()
  );

  return {
    templateFormats: ["njk", "html", "xml", "txt"],
    htmlTemplateEngine: "njk",
    markdownTemplateEngine: "njk",
    dir: {
      input: "src",
      output: "_site",
      includes: "_includes",
      data: "_data",
    },
  };
};