/* Print console messages + page errors for one URL in headless Edge. */
const { spawn } = require("node:child_process");
const fs = require("node:fs");
const http = require("node:http");

const EDGE = "C:/Program Files (x86)/Microsoft/Edge/Application/msedge.exe";
const PORT = 9334;
const url = process.argv[2] || "http://localhost:3210/";
const cookieFile = process.argv[3];

function httpJson(path) {
  return new Promise((resolve, reject) => {
    const req = http.request({ host: "127.0.0.1", port: PORT, path }, (res) => {
      let d = "";
      res.on("data", (c) => (d += c));
      res.on("end", () => { try { resolve(JSON.parse(d)); } catch { resolve(d); } });
    });
    req.on("error", reject);
    req.end();
  });
}

(async () => {
  const profile = fs.mkdtempSync("/tmp/edge-prof-");
  const proc = spawn(EDGE, [
    "--headless=new", `--remote-debugging-port=${PORT}`, `--user-data-dir=${profile}`,
    "--no-first-run", "--no-default-browser-check", "--disable-gpu", "about:blank",
  ], { stdio: "ignore" });

  let targets = null;
  for (let i = 0; i < 40; i++) {
    await new Promise((r) => setTimeout(r, 500));
    try { targets = await httpJson("/json/list"); break; } catch {}
  }
  if (!targets) { console.error("edge did not start"); process.exit(1); }
  const page = targets.find((t) => t.type === "page");

  const ws = new WebSocket(page.webSocketDebuggerUrl);
  await new Promise((r) => (ws.onopen = r));
  let id = 0;
  const send = (method, params = {}) =>
    new Promise((resolve) => {
      const myId = ++id;
      ws.send(JSON.stringify({ id: myId, method, params }));
      const t = setInterval(() => {
        const m = ws._buf.find((b) => b.id === myId);
        if (m) { clearInterval(t); resolve(m.result ?? m.error); }
      }, 10);
    });
  ws._buf = [];
  ws.onmessage = (m) => {
    const msg = JSON.parse(m.data);
    if (msg.id) { ws._buf.push(msg); return; }
    if (msg.method === "Runtime.consoleAPICalled") {
      const text = msg.params.args.map((a) => a.value ?? a.description ?? a.type).join(" ");
      console.log(`[${msg.params.type}] ${text}`.slice(0, 3000));
    }
    if (msg.method === "Runtime.exceptionThrown") {
      console.log("[EXCEPTION]", JSON.stringify(msg.params.exceptionDetails.exception?.description ?? msg.params.exceptionDetails.text).slice(0, 3000));
    }
    if (msg.method === "Log.entryAdded") {
      const e = msg.params.entry;
      console.log(`[log:${e.level}] ${e.text}`.slice(0, 3000));
    }
  };

  await send("Runtime.enable");
  await send("Log.enable");
  await send("Network.enable");
  if (cookieFile) {
    const line = fs.readFileSync(cookieFile, "utf8").split("\n").map((l) => l.trim()).find((l) => l.includes("authjs.session-token"));
    if (line) await send("Network.setCookies", { cookies: [{ name: "authjs.session-token", value: line.split("\t").pop(), domain: "localhost", path: "/", httpOnly: true, sameSite: "Lax" }] });
  }
  await send("Page.enable");
  await send("Page.navigate", { url });
  await new Promise((r) => setTimeout(r, 4500));
  const cls = await send("Runtime.evaluate", { expression: "document.documentElement.className" });
  console.log("ROOT CLASS:", cls?.result?.value);
  proc.kill();
  process.exit(0);
})().catch((e) => { console.error(e.message); process.exit(1); });