const test = require("node:test");
const assert = require("node:assert/strict");
const fs = require("node:fs");
const path = require("node:path");

const root = path.resolve(__dirname, "..");

test("the Docker image includes every application script referenced by the page", () => {
  const html = fs.readFileSync(path.join(root, "index.html"), "utf8");
  const dockerfile = fs.readFileSync(path.join(root, "Dockerfile"), "utf8");
  const applicationScripts = [...html.matchAll(/<script src="\.\/([^"]+\.js)"/g)]
    .map((match) => match[1])
    .filter((scriptPath) => !scriptPath.startsWith("vendor/"));

  assert.ok(applicationScripts.length > 0);
  applicationScripts.forEach((scriptPath) => {
    assert.ok(fs.existsSync(path.join(root, scriptPath)), `${scriptPath} must exist`);
    assert.match(
      dockerfile,
      new RegExp(`^COPY ${scriptPath.replace(/[.*+?^${}()|[\]\\]/g, "\\$&")} \\.\\/$`, "m"),
      `${scriptPath} must be copied by the Dockerfile`,
    );
  });
});