import { expect, test } from "bun:test";
import { parse } from "@wrnexus/syntax";
import { generate } from "../src/codegen.ts";

const SOURCE = `page Probe {
  apis {
    searchUsers POST /api/users {
      request { body { name?: string } }
      response { return data.users }
      error { return [] }
    }
  }

  load server directory {
    return await api.searchUsers({ name: "a" })
  }

  view { <main>x</main> }
}
`;

test("the server module declares an api object with the block's path and method", () => {
  const generated = generate(parse(SOURCE));

  expect(generated).toContain("const api =");
  expect(generated).toContain("searchUsers");
  expect(generated).toContain('"/api/users"');
  expect(generated).toContain('"POST"');
});

test("the response body is spliced in", () => {
  expect(generate(parse(SOURCE))).toContain("data.users");
});

test("a block with no error section rethrows rather than resolving undefined", () => {
  const generated = generate(
    parse(`page P {
  apis { a GET /api/a { response { return data } } }
  load server x { return await api.a() }
  view { <main>x</main> }
}
`),
  );

  expect(generated).toContain("throw");
});