import { assertEquals } from "@std/assert";

Deno.test("mod.ts, the docs' index page, links every documented module", async () => {
  const doc = await Deno.readTextFile("mod.ts");
  const linked = new Set(
    [...doc.matchAll(/\]\(\.\/(\S+?\.ts)\/index\.html\)/g)].map((m) => m[1]),
  );
  const modules: string[] = [];
  async function walk(dir: string) {
    for await (const entry of Deno.readDir(dir)) {
      const path = `${dir}/${entry.name}`;
      if (entry.isDirectory && entry.name !== "test") await walk(path);
      else if (entry.name.endsWith(".ts")) modules.push(path);
    }
  }
  await walk("api");
  await walk("shared");
  assertEquals(modules.filter((m) => !linked.has(m)), []);
  assertEquals([...linked].filter((m) => !modules.includes(m)), []);
});