import { expect } from "chai";
import { cli } from "./test-utils.js";
import { fileURLToPath } from "url";

const root = new URL("./fixtures/base64-response/", import.meta.url).toString();

describe("Base64 Responses", () => {
  before(async () => {
    await cli("build", "--root", fileURLToPath(root));
  });

  it("Can return base64 encoded strings", async () => {
    const entryURL = new URL(
      "./fixtures/base64-response/.netlify/functions-internal/entry.mjs",
      import.meta.url,
    );
    const { handler } = await import(entryURL);
    const resp = await handler({
      httpMethod: "GET",
      headers: {},
      rawUrl: "http://example.com/image",
      body: "{}",
      isBase64Encoded: false,
    });
    expect(resp.statusCode, "successful response").to.equal(200);
    expect(resp.isBase64Encoded, "includes isBase64Encoded flag").to.be.true;

    const buffer = Buffer.from(resp.body, "base64");
    expect(buffer.toString(), "decoded base64 string matches").to.equal(
      "base64 test string",
    );
  });

  it("Can define custom binaryMediaTypes", async () => {
    const entryURL = new URL(
      "./fixtures/base64-response/.netlify/functions-internal/entry.mjs",
      import.meta.url,
    );
    const { handler } = await import(entryURL);
    const resp = await handler({
      httpMethod: "GET",
      headers: {},
      rawUrl: "http://example.com/font",
      body: "{}",
      isBase64Encoded: false,
    });
    expect(resp.statusCode, "successful response").to.equal(200);
    expect(resp.isBase64Encoded, "includes isBase64Encoded flag").to.be.true;

    const buffer = Buffer.from(resp.body, "base64");
    expect(buffer.toString(), "decoded base64 string matches").to.equal(
      "base64 test font",
    );
  });
});