import {
  concatArrayBuffers,
  readableStreamToArray,
  readableStreamToArrayBuffer,
  readableStreamToBlob,
  readableStreamToText,
  serve,
} from "bun";
import { describe, expect, it } from "bun:test";
import { renderToReadableStream as renderToReadableStreamBrowser } from "react-dom/server.browser";
// import { gc } from "./gc";
function gc() {}
import { renderToReadableStream as renderToReadableStreamBun } from "./reactdom-bun";

Object.defineProperty(renderToReadableStreamBrowser, "name", {
  value: "server.browser",
});
Object.defineProperty(renderToReadableStreamBun, "name", {
  value: "server.bun",
});
var port = 8908;

const fixtures = [
  // Needs at least six variations
  // - < 8 chars, latin1
  // - 8+ chars, latin1
  // - 16+ chars, latin1
  // - < 8 chars, utf16
  // - 8+ chars, utf16
  // - 16+ chars, utf16
  ["<a>b</a>", <a>b</a>],
  ["<span>Hello World!</span>", <span>Hello World!</span>],
  ["<a></a>", <a />],
  ["<span>😋</span>", <span>😋</span>],
  ["<a>😋</a>", <a>😋</a>],
  ["<span>Hello World! 😋</span>", <span>Hello World! 😋</span>],
  [
    "<span>Hello World!</span>😋",
    <>
      <span>Hello World!</span>😋
    </>,
  ],
  [
    "<span>😋Hello World!</span>",
    <>
      <span>😋Hello World!</span>
    </>,
  ],
  ["😋", <>😋</>],
  ["l😋l", <>l😋l</>],
  ["lo😋", <>lo😋</>],
  ["😋lo", <>😋lo</>],
  [
    "😋<span>Hello World!</span>",
    <>
      😋
      <span>Hello World!</span>
    </>,
  ],
  [
    "😋😋😋😋<span>Hello World!</span>",
    <>
      😋😋😋😋
      <span>Hello World!</span>
    </>,
  ],
  ["<span>Hello😋😋😋😋World!</span>", <span>Hello😋😋😋😋World!</span>],
  [
    "<span>Hello World!</span>😋😋😋😋",
    <>
      <span>Hello World!</span>
      😋😋😋😋
    </>,
  ],
  [
    "😋L😋l😋L😋<span>Alternating latin1 &amp; utf16</span>",
    <>
      😋L😋l😋L😋<span>Alternating latin1 &amp; utf16</span>
    </>,
  ],
  ["<span>Hello😋L😋l😋L😋World!</span>", <span>Hello😋L😋l😋L😋World!</span>],
  [
    "<span>Hello World!</span>😋L😋l😋L😋",
    <>
      <span>Hello World!</span>
      😋L😋l😋L😋
    </>,
  ],
];

describe("ReactDOM", () => {
  for (let renderToReadableStream of [
    renderToReadableStreamBun,
    renderToReadableStreamBrowser,
  ]) {
    for (let [inputString, reactElement] of fixtures)
      describe(`${renderToReadableStream.name}(${inputString})`, () => {
        it("Response.text()", async () => {
          const stream = await renderToReadableStream(reactElement);
          gc();
          const response = new Response(stream);
          gc();
          try {
            const text = await response.text();
            gc();
            expect(text.replaceAll("<!-- -->", "")).toBe(inputString);
            gc();
          } catch (e) {
            console.log(e.stack);
            throw e;
          }
        });

        it("Response.arrayBuffer()", async () => {
          const stream = await renderToReadableStream(reactElement);
          gc();
          const response = new Response(stream);
          gc();
          const text = new TextDecoder().decode(await response.arrayBuffer());
          gc();
          expect(text.replaceAll("<!-- -->", "")).toBe(inputString);
          gc();
        });

        it("Response.blob()", async () => {
          const stream = await renderToReadableStream(reactElement);
          gc();
          const response = new Response(stream);
          gc();
          const text = await (await response.blob()).text();
          gc();
          expect(text.replaceAll("<!-- -->", "")).toBe(inputString);
          gc();
        });

        it("readableStreamToText(stream)", async () => {
          const stream = await renderToReadableStream(reactElement);
          gc();
          const text = await readableStreamToText(stream);
          gc();
          expect(text.replaceAll("<!-- -->", "")).toBe(inputString);
          gc();
        });

        it("readableStreamToBlob(stream)", async () => {
          try {
            const stream = await renderToReadableStream(reactElement);
            gc();
            const blob = await readableStreamToBlob(stream);
            const text = await blob.text();
            gc();
            expect(text.replaceAll("<!-- -->", "")).toBe(inputString);
            gc();
          } catch (e) {
            console.error(e.message);
            console.error(e.stack);
            throw e;
          }
        });

        it("readableStreamToArray(stream)", async () => {
          const stream = await renderToReadableStream(reactElement);
          gc();
          const array = await readableStreamToArray(stream);
          const text =
            renderToReadableStream === renderToReadableStreamBun
              ? array.join("")
              : new TextDecoder().decode(concatArrayBuffers(array));
          gc();
          expect(text.replaceAll("<!-- -->", "")).toBe(inputString);
          gc();
        });

        it("readableStreamToArrayBuffer(stream)", async () => {
          const stream = await renderToReadableStream(reactElement);
          gc();
          const arrayBuffer = await readableStreamToArrayBuffer(stream);
          const text = new TextDecoder().decode(arrayBuffer);
          gc();
          expect(text.replaceAll("<!-- -->", "")).toBe(inputString);
          gc();
        });
      });
  }
  // for (let renderToReadableStream of [
  //   renderToReadableStreamBun,
  //   renderToReadableStreamBrowser,
  // ]) {
  //   for (let [inputString, reactElement] of fixtures) {
  //     describe(`${renderToReadableStream.name}(${inputString})`, () => {
  //       it("http server, 1 request", async () => {
  //         var server;
  //         try {
  //           server = serve({
  //             port: port++,
  //             async fetch(req) {
  //               return new Response(await renderToReadableStream(reactElement));
  //             },
  //           });
  //           const resp = await fetch("http://localhost:" + server.port + "/");
  //           expect((await resp.text()).replaceAll("<!-- -->", "")).toBe(
  //             inputString
  //           );
  //           gc();
  //         } catch (e) {
  //           throw e;
  //         } finally {
  //           server?.stop();
  //           gc();
  //         }
  //       });
  //       const count = 4;
  //       it(`http server, ${count} requests`, async () => {
  //         var server;
  //         try {
  //           server = serve({
  //             port: port++,
  //             async fetch(req) {
  //               return new Response(await renderToReadableStream(reactElement));
  //             },
  //           });
  //           var total = 0;
  //           gc();
  //           while (total++ < count) {
  //             var attempt = total;
  //             const response = await fetch(
  //               "http://localhost:" + server.port + "/"
  //             );
  //             gc();
  //             const result = await response.text();
  //             try {
  //               expect(result.replaceAll("<!-- -->", "")).toBe(inputString);
  //             } catch (e) {
  //               e.message += "\nAttempt: " + attempt;
  //               throw e;
  //             }

  //             gc();
  //           }
  //         } catch (e) {
  //           throw e;
  //         } finally {
  //           server.stop();
  //         }
  //       });
  //     });
  //   }
  // }
});