const { src, dest } = require("gulp");
const through2 = require("through2");
const fs = require("fs");
const path = require("path");

exports.default = () => {
  return src("views/**/*.html")
    .pipe(
      through2.obj(function (file, _, cb) {
        if (file.isBuffer()) {
          file.contents = Buffer.from(
            file.contents
              .toString()
              .replace(/<\$ (.*?) \$>/gm, function (m, g1) {
                return fs.readFileSync(path.join(__dirname, "embeds", g1), {
                  encoding: "utf-8",
                });
              })
          );
        }
        cb(null, file);
      })
    )
    .pipe(src(["views/**/*", "!views/**/*.html"]))
    .pipe(dest("output/"));
};