// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.

use bytes::Bytes;
use deno_core::anyhow::anyhow;
use deno_core::error::AnyError;
use deno_core::serde_json;
use deno_core::serde_json::json;
use deno_core::url;

use fastwebsockets::FragmentCollector;
use fastwebsockets::Frame;
use fastwebsockets::WebSocket;
use hyper::body::Incoming;
use hyper::upgrade::Upgraded;
use hyper::Request;
use hyper::Response;
use hyper_util::rt::TokioIo;
use std::io::BufRead;
use std::process::ChildStderr;
use std::time::Duration;
use test_util as util;
use tokio::net::TcpStream;
use tokio::time::timeout;
use url::Url;
use util::assert_contains;
use util::assert_starts_with;
use util::DenoChild;
use util::TestContextBuilder;

struct SpawnExecutor;

impl<Fut> hyper::rt::Executor<Fut> for SpawnExecutor
where
  Fut: std::future::Future + Send + 'static,
  Fut::Output: Send + 'static,
{
  fn execute(&self, fut: Fut) {
    deno_core::unsync::spawn(fut);
  }
}

async fn connect_to_ws(
  uri: Url,
) -> (WebSocket<TokioIo<Upgraded>>, Response<Incoming>) {
  let domain = &uri.host().unwrap().to_string();
  let port = &uri.port().unwrap_or(match uri.scheme() {
    "wss" | "https" => 443,
    _ => 80,
  });
  let addr = format!("{domain}:{port}");

  let stream = TcpStream::connect(addr).await.unwrap();

  let host = uri.host_str().unwrap();

  let req = Request::builder()
    .method("GET")
    .uri(uri.path())
    .header("Host", host)
    .header(hyper::header::UPGRADE, "websocket")
    .header(hyper::header::CONNECTION, "Upgrade")
    .header(
      "Sec-WebSocket-Key",
      fastwebsockets::handshake::generate_key(),
    )
    .header("Sec-WebSocket-Version", "13")
    .body(http_body_util::Empty::<Bytes>::new())
    .unwrap();

  fastwebsockets::handshake::client(&SpawnExecutor, req, stream)
    .await
    .unwrap()
}

fn ignore_script_parsed(msg: &str) -> bool {
  !msg.starts_with(r#"{"method":"Debugger.scriptParsed","#)
}

struct StdErrLines {
  reader: Box<dyn Iterator<Item = String>>,
  check_lines: Vec<String>,
}

impl StdErrLines {
  pub fn new(stderr: ChildStderr) -> Self {
    Self {
      reader: Box::new(std::io::BufReader::new(stderr).lines().map(|r| {
        let line = r.unwrap();
        eprintln!("STDERR: {}", line);
        line
      })),
      check_lines: Default::default(),
    }
  }

  pub fn next(&mut self) -> Option<String> {
    loop {
      let line = util::strip_ansi_codes(&self.reader.next()?).to_string();
      if line.starts_with("Check") || line.starts_with("Download") {
        self.check_lines.push(line);
      } else {
        return Some(line);
      }
    }
  }

  pub fn assert_lines(&mut self, expected_lines: &[&str]) {
    let mut expected_index = 0;

    loop {
      let line = self.next().unwrap();

      assert_eq!(line, expected_lines[expected_index]);
      expected_index += 1;

      if expected_index >= expected_lines.len() {
        break;
      }
    }
  }

  pub fn extract_ws_url(&mut self) -> url::Url {
    let stderr_first_line = self.next().unwrap();
    assert_starts_with!(&stderr_first_line, "Debugger listening on ");
    let v: Vec<_> = stderr_first_line.match_indices("ws:").collect();
    assert_eq!(v.len(), 1);
    let ws_url_index = v[0].0;
    let ws_url = &stderr_first_line[ws_url_index..];
    url::Url::parse(ws_url).unwrap()
  }
}

struct InspectorTester {
  socket: FragmentCollector<TokioIo<Upgraded>>,
  notification_filter: Box<dyn FnMut(&str) -> bool + 'static>,
  child: DenoChild,
  stderr_lines: StdErrLines,
  stdout_lines: Box<dyn Iterator<Item = String>>,
}

impl Drop for InspectorTester {
  fn drop(&mut self) {
    _ = self.child.kill();
  }
}

impl InspectorTester {
  async fn create<F>(mut child: DenoChild, notification_filter: F) -> Self
  where
    F: FnMut(&str) -> bool + 'static,
  {
    let stdout = child.stdout.take().unwrap();
    let stdout_lines = std::io::BufReader::new(stdout).lines().map(|r| {
      let line = r.unwrap();
      eprintln!("STDOUT: {}", line);
      line
    });

    let stderr = child.stderr.take().unwrap();
    let mut stderr_lines = StdErrLines::new(stderr);

    let uri = stderr_lines.extract_ws_url();

    let (socket, response) = connect_to_ws(uri).await;

    assert_eq!(response.status(), 101); // Switching protocols.

    Self {
      socket: FragmentCollector::new(socket),
      notification_filter: Box::new(notification_filter),
      child,
      stderr_lines,
      stdout_lines: Box::new(stdout_lines),
    }
  }

  async fn send_many(&mut self, messages: &[serde_json::Value]) {
    // TODO(bartlomieju): add graceful error handling
    for msg in messages {
      let result = self
        .socket
        .write_frame(Frame::text(msg.to_string().into_bytes().into()))
        .await
        .map_err(|e| anyhow!(e));
      self.handle_error(result);
    }
  }

  async fn send(&mut self, message: serde_json::Value) {
    self.send_many(&[message]).await;
  }

  fn handle_error<T>(&mut self, result: Result<T, AnyError>) -> T {
    match result {
      Ok(result) => result,
      Err(err) => {
        let mut stdout = vec![];
        for line in self.stdout_lines.by_ref() {
          stdout.push(line);
        }
        let mut stderr = vec![];
        while let Some(line) = self.stderr_lines.next() {
          stderr.push(line);
        }
        let stdout = stdout.join("\n");
        let stderr = stderr.join("\n");
        self.child.kill().unwrap();

        panic!(
          "Inspector test failed with error: {err:?}.\nstdout:\n{stdout}\nstderr:\n{stderr}"
        );
      }
    }
  }

  async fn recv(&mut self) -> String {
    loop {
      // In the rare case this locks up, don't wait longer than one minute
      let result = timeout(Duration::from_secs(60), self.socket.read_frame())
        .await
        .expect("recv() timeout")
        .map_err(|e| anyhow!(e));
      let message =
        String::from_utf8(self.handle_error(result).payload.to_vec()).unwrap();
      if (self.notification_filter)(&message) {
        return message;
      }
    }
  }

  async fn recv_as_json(&mut self) -> serde_json::Value {
    let msg = self.recv().await;
    serde_json::from_str(&msg).unwrap()
  }

  async fn assert_received_messages(
    &mut self,
    responses: &[&str],
    notifications: &[&str],
  ) {
    let expected_messages = responses.len() + notifications.len();
    let mut responses_idx = 0;
    let mut notifications_idx = 0;

    for _ in 0..expected_messages {
      let msg = self.recv().await;

      if msg.starts_with(r#"{"id":"#) {
        assert!(
          msg.starts_with(responses[responses_idx]),
          "Doesn't start with {}, instead received {}",
          responses[responses_idx],
          msg
        );
        responses_idx += 1;
      } else {
        assert!(
          msg.starts_with(notifications[notifications_idx]),
          "Doesn't start with {}, instead received {}",
          notifications[notifications_idx],
          msg
        );
        notifications_idx += 1;
      }
    }
  }

  fn stderr_line(&mut self) -> String {
    self.stderr_lines.next().unwrap()
  }

  fn stdout_line(&mut self) -> String {
    self.stdout_lines.next().unwrap()
  }

  fn assert_stderr_for_inspect(&mut self) {
    self
      .stderr_lines
      .assert_lines(&["Visit chrome://inspect to connect to the debugger."]);
  }

  fn assert_stderr_for_inspect_brk(&mut self) {
    self.stderr_lines.assert_lines(&[
      "Visit chrome://inspect to connect to the debugger.",
      "Deno is waiting for debugger to connect.",
    ]);
  }
}

fn inspect_flag_with_unique_port(flag_prefix: &str) -> String {
  use std::sync::atomic::AtomicU16;
  use std::sync::atomic::Ordering;
  static PORT: AtomicU16 = AtomicU16::new(9229);
  let port = PORT.fetch_add(1, Ordering::Relaxed);
  format!("{flag_prefix}=127.0.0.1:{port}")
}

#[tokio::test]
async fn inspector_connect() {
  let script = util::testdata_path().join("inspector/inspector1.js");
  let mut child = util::deno_cmd()
    .arg("run")
    .arg(inspect_flag_with_unique_port("--inspect"))
    .arg(script)
    .stderr_piped()
    .spawn()
    .unwrap();

  let stderr = child.stderr.take().unwrap();
  let mut stderr_lines = StdErrLines::new(stderr);
  let ws_url = stderr_lines.extract_ws_url();

  let (_socket, response) = connect_to_ws(ws_url).await;
  assert_eq!("101 Switching Protocols", response.status().to_string());
  child.kill().unwrap();
  child.wait().unwrap();
}

#[tokio::test]
async fn inspector_break_on_first_line() {
  let script = util::testdata_path().join("inspector/inspector2.js");
  let child = util::deno_cmd()
    .arg("run")
    .arg(inspect_flag_with_unique_port("--inspect-brk"))
    .arg(script)
    .piped_output()
    .spawn()
    .unwrap();

  let mut tester = InspectorTester::create(child, ignore_script_parsed).await;

  tester.assert_stderr_for_inspect_brk();

  tester
    .send_many(&[
      json!({"id":1,"method":"Runtime.enable"}),
      json!({"id":2,"method":"Debugger.enable"}),
    ])
    .await;
  tester.assert_received_messages(
      &[
        r#"{"id":1,"result":{}}"#,
        r#"{"id":2,"result":{"debuggerId":"#,
      ],
      &[
        r#"{"method":"Runtime.executionContextCreated","params":{"context":{"id":1,"#,
      ],
    )
    .await;

  tester
    .send(json!({"id":3,"method":"Runtime.runIfWaitingForDebugger"}))
    .await;
  tester
    .assert_received_messages(
      &[r#"{"id":3,"result":{}}"#],
      &[r#"{"method":"Debugger.paused","#],
    )
    .await;

  tester
    .send(json!({
      "id":4,
      "method":"Runtime.evaluate",
      "params":{
        "expression":"Deno[Deno.internal].core.print(\"hello from the inspector\\n\")",
        "contextId":1,
        "includeCommandLineAPI":true,
        "silent":false,
        "returnByValue":true
      }
    }))
    .await;
  tester
    .assert_received_messages(
      &[r#"{"id":4,"result":{"result":{"type":"object","subtype":"null","value":null}}}"#],
      &[],
    )
    .await;

  assert_eq!(
    &tester.stdout_lines.next().unwrap(),
    "hello from the inspector"
  );

  tester
    .send(json!({"id":5,"method":"Debugger.resume"}))
    .await;
  tester
    .assert_received_messages(&[r#"{"id":5,"result":{}}"#], &[])
    .await;

  assert_eq!(
    &tester.stdout_lines.next().unwrap(),
    "hello from the script"
  );

  tester.child.kill().unwrap();
  tester.child.wait().unwrap();
}

#[tokio::test]
async fn inspector_pause() {
  let script = util::testdata_path().join("inspector/inspector1.js");
  let child = util::deno_cmd()
    .arg("run")
    .arg(inspect_flag_with_unique_port("--inspect"))
    .arg(script)
    .piped_output()
    .spawn()
    .unwrap();

  let mut tester = InspectorTester::create(child, ignore_script_parsed).await;

  tester
    .send(json!({"id":6,"method":"Debugger.enable"}))
    .await;
  tester
    .assert_received_messages(&[r#"{"id":6,"result":{"debuggerId":"#], &[])
    .await;

  tester
    .send(json!({"id":31,"method":"Debugger.pause"}))
    .await;

  tester
    .assert_received_messages(&[r#"{"id":31,"result":{}}"#], &[])
    .await;

  tester.child.kill().unwrap();
}

#[tokio::test]
async fn inspector_port_collision() {
  // Skip this test on WSL, which allows multiple processes to listen on the
  // same port, rather than making `bind()` fail with `EADDRINUSE`. We also
  // skip this test on Windows because it will occasionally flake, possibly
  // due to a similar issue.
  if (cfg!(target_os = "linux")
    && std::env::var_os("WSL_DISTRO_NAME").is_some())
    || cfg!(windows)
  {
    return;
  }

  let script = util::testdata_path().join("inspector/inspector1.js");
  let inspect_flag = inspect_flag_with_unique_port("--inspect");

  let mut child1 = util::deno_cmd()
    .arg("run")
    .arg(&inspect_flag)
    .arg(script.clone())
    .stderr_piped()
    .spawn()
    .unwrap();

  let stderr_1 = child1.stderr.take().unwrap();
  let mut stderr_1_lines = StdErrLines::new(stderr_1);
  let _ = stderr_1_lines.extract_ws_url();

  let mut child2 = util::deno_cmd()
    .arg("run")
    .arg(&inspect_flag)
    .arg(script)
    .stderr_piped()
    .spawn()
    .unwrap();

  let stderr_2 = child2.stderr.as_mut().unwrap();
  let stderr_2_error_message = std::io::BufReader::new(stderr_2)
    .lines()
    .map(|r| r.unwrap())
    .inspect(|line| assert!(!line.contains("Debugger listening")))
    .find(|line| line.contains("Failed to start inspector server"));
  assert!(stderr_2_error_message.is_some());

  child1.kill().unwrap();
  child1.wait().unwrap();
  child2.wait().unwrap();
}

#[tokio::test]
async fn inspector_does_not_hang() {
  let script = util::testdata_path().join("inspector/inspector3.js");
  let child = util::deno_cmd()
    .arg("run")
    .arg(inspect_flag_with_unique_port("--inspect-brk"))
    .env("NO_COLOR", "1")
    .arg(script)
    .piped_output()
    .spawn()
    .unwrap();

  let mut tester = InspectorTester::create(child, ignore_script_parsed).await;

  tester.assert_stderr_for_inspect_brk();

  tester
    .send_many(&[
      json!({"id":1,"method":"Runtime.enable"}),
      json!({"id":2,"method":"Debugger.enable"}),
      json!({"id":3,"method":"Debugger.setBlackboxPatterns","params":{"patterns":["/node_modules/|/bower_components/"]}}),
    ])
    .await;
  tester.assert_received_messages(
      &[
        r#"{"id":1,"result":{}}"#,
        r#"{"id":2,"result":{"debuggerId":"#,
        r#"{"id":3,"result":"#,
      ],
      &[
        r#"{"method":"Runtime.executionContextCreated","params":{"context":{"id":1,"#
      ],
    )
    .await;

  tester
    .send(json!({"id":4,"method":"Runtime.runIfWaitingForDebugger"}))
    .await;
  tester
    .assert_received_messages(
      &[r#"{"id":4,"result":{}}"#],
      &[r#"{"method":"Debugger.paused","#],
    )
    .await;

  tester
    .send(json!({"id":5,"method":"Debugger.resume"}))
    .await;
  tester
    .assert_received_messages(
      &[r#"{"id":5,"result":{}}"#],
      &[r#"{"method":"Debugger.resumed","params":{}}"#],
    )
    .await;

  for i in 0..128u32 {
    let request_id = i + 10;
    // Expect the number {i} on stdout.
    let s = i.to_string();
    assert_eq!(tester.stdout_lines.next().unwrap(), s);

    tester
      .assert_received_messages(
        &[],
        &[
          r#"{"method":"Runtime.consoleAPICalled","#,
          r#"{"method":"Debugger.paused","#,
        ],
      )
      .await;

    tester
      .send(json!({"id":request_id,"method":"Debugger.resume"}))
      .await;
    tester
      .assert_received_messages(
        &[&format!(r#"{{"id":{request_id},"result":{{}}}}"#)],
        &[r#"{"method":"Debugger.resumed","params":{}}"#],
      )
      .await;
  }

  // Check that we can gracefully close the websocket connection.
  tester
    .socket
    .write_frame(Frame::close_raw(vec![].into()))
    .await
    .unwrap();

  assert_eq!(&tester.stdout_lines.next().unwrap(), "done");
  assert!(tester.child.wait().unwrap().success());
}

#[tokio::test]
async fn inspector_without_brk_runs_code() {
  let script = util::testdata_path().join("inspector/inspector4.js");
  let mut child = util::deno_cmd()
    .arg("run")
    .arg(inspect_flag_with_unique_port("--inspect"))
    .arg(script)
    .piped_output()
    .spawn()
    .unwrap();

  let stderr = child.stderr.take().unwrap();
  let mut stderr_lines = StdErrLines::new(stderr);
  let _ = stderr_lines.extract_ws_url();

  // Check that inspector actually runs code without waiting for inspector
  // connection.
  let stdout = child.stdout.as_mut().unwrap();
  let mut stdout_lines =
    std::io::BufReader::new(stdout).lines().map(|r| r.unwrap());
  let stdout_first_line = stdout_lines.next().unwrap();
  assert_eq!(stdout_first_line, "hello");

  child.kill().unwrap();
  child.wait().unwrap();
}

#[tokio::test]
async fn inspector_runtime_evaluate_does_not_crash() {
  let child = util::deno_cmd()
    .arg("repl")
    .arg("--allow-read")
    .arg(inspect_flag_with_unique_port("--inspect"))
    .stdin(std::process::Stdio::piped())
    .piped_output()
    .spawn()
    .unwrap();

  let mut tester = InspectorTester::create(child, ignore_script_parsed).await;

  let stdin = tester.child.stdin.take().unwrap();

  tester.assert_stderr_for_inspect();
  assert_starts_with!(&tester.stdout_line(), "Deno");
  assert_eq!(
    &tester.stdout_line(),
    "exit using ctrl+d, ctrl+c, or close()"
  );
  assert_eq!(&tester.stderr_line(), "Debugger session started.");

  tester
    .send_many(&[
      json!({"id":1,"method":"Runtime.enable"}),
      json!({"id":2,"method":"Debugger.enable"}),
    ])
    .await;
  tester.assert_received_messages(
      &[
        r#"{"id":1,"result":{}}"#,
        r#"{"id":2,"result":{"debuggerId":"#,
      ],
      &[
        r#"{"method":"Runtime.executionContextCreated","params":{"context":{"id":1,"#,
      ],
    )
    .await;

  tester
    .send(json!({
      "id":3,
      "method":"Runtime.compileScript",
      "params":{
        "expression":"Deno.cwd()",
        "sourceURL":"",
        "persistScript":false,
        "executionContextId":1
      }
    }))
    .await;
  tester
    .assert_received_messages(&[r#"{"id":3,"result":{}}"#], &[])
    .await;
  tester
    .send(json!({
      "id":4,
      "method":"Runtime.evaluate",
      "params":{
        "expression":"Deno.cwd()",
        "objectGroup":"console",
        "includeCommandLineAPI":true,
        "silent":false,
        "contextId":1,
        "returnByValue":true,
        "generatePreview":true,
        "userGesture":true,
        "awaitPromise":false,
        "replMode":true
      }
    }))
    .await;
  tester
    .assert_received_messages(
      &[r#"{"id":4,"result":{"result":{"type":"string","value":""#],
      &[],
    )
    .await;
  tester
    .send(json!({
      "id":5,
      "method":"Runtime.evaluate",
      "params":{
        "expression":"console.error('done');",
        "objectGroup":"console",
        "includeCommandLineAPI":true,
        "silent":false,
        "contextId":1,
        "returnByValue":true,
        "generatePreview":true,
        "userGesture":true,
        "awaitPromise":false,
        "replMode":true
      }
    }))
    .await;
  tester
    .assert_received_messages(
      &[r#"{"id":5,"result":{"result":{"type":"undefined"}}}"#],
      &[r#"{"method":"Runtime.consoleAPICalled"#],
    )
    .await;
  assert_eq!(&tester.stderr_line(), "done");
  drop(stdin);
  tester.child.wait().unwrap();
}

#[tokio::test]
async fn inspector_json() {
  let script = util::testdata_path().join("inspector/inspector1.js");
  let mut child = util::deno_cmd()
    .arg("run")
    .arg(inspect_flag_with_unique_port("--inspect"))
    .arg(script)
    .stderr_piped()
    .spawn()
    .unwrap();

  let stderr = child.stderr.take().unwrap();
  let mut stderr_lines = StdErrLines::new(stderr);
  let ws_url = stderr_lines.extract_ws_url();
  let mut url = ws_url.clone();
  let _ = url.set_scheme("http");
  url.set_path("/json");
  let client = reqwest::Client::new();

  // Ensure that the webSocketDebuggerUrl matches the host header
  for (host, expected) in [
    (None, ws_url.as_str()),
    (Some("some.random.host"), "ws://some.random.host/"),
    (Some("some.random.host:1234"), "ws://some.random.host:1234/"),
    (Some("[::1]:1234"), "ws://[::1]:1234/"),
  ] {
    let mut req = reqwest::Request::new(reqwest::Method::GET, url.clone());
    if let Some(host) = host {
      req.headers_mut().insert(
        reqwest::header::HOST,
        reqwest::header::HeaderValue::from_static(host),
      );
    }
    let resp = client.execute(req).await.unwrap();
    assert_eq!(resp.status(), reqwest::StatusCode::OK);
    let endpoint_list: Vec<deno_core::serde_json::Value> =
      serde_json::from_str(&resp.text().await.unwrap()).unwrap();
    let matching_endpoint = endpoint_list.iter().find(|e| {
      e["webSocketDebuggerUrl"]
        .as_str()
        .unwrap()
        .contains(expected)
    });
    assert!(matching_endpoint.is_some());
  }

  child.kill().unwrap();
}

#[tokio::test]
async fn inspector_json_list() {
  let script = util::testdata_path().join("inspector/inspector1.js");
  let mut child = util::deno_cmd()
    .arg("run")
    .arg(inspect_flag_with_unique_port("--inspect"))
    .arg(script)
    .stderr_piped()
    .spawn()
    .unwrap();

  let stderr = child.stderr.take().unwrap();
  let mut stderr_lines = StdErrLines::new(stderr);
  let ws_url = stderr_lines.extract_ws_url();
  let mut url = ws_url.clone();
  let _ = url.set_scheme("http");
  url.set_path("/json/list");
  let resp = reqwest::get(url).await.unwrap();
  assert_eq!(resp.status(), reqwest::StatusCode::OK);
  let endpoint_list: Vec<deno_core::serde_json::Value> =
    serde_json::from_str(&resp.text().await.unwrap()).unwrap();
  let matching_endpoint = endpoint_list
    .iter()
    .find(|e| e["webSocketDebuggerUrl"] == ws_url.as_str());
  assert!(matching_endpoint.is_some());
  child.kill().unwrap();
}

#[tokio::test]
async fn inspector_connect_non_ws() {
  // https://github.com/denoland/deno/issues/11449
  // Verify we don't panic if non-WS connection is being established
  let script = util::testdata_path().join("inspector/inspector1.js");
  let mut child = util::deno_cmd()
    .arg("run")
    .arg(inspect_flag_with_unique_port("--inspect"))
    .arg(script)
    .stderr_piped()
    .spawn()
    .unwrap();

  let stderr = child.stderr.take().unwrap();
  let mut stderr_lines = StdErrLines::new(stderr);
  let mut ws_url = stderr_lines.extract_ws_url();
  // Change scheme to URL and try send a request. We're not interested
  // in the request result, just that the process doesn't panic.
  ws_url.set_scheme("http").unwrap();
  let resp = reqwest::get(ws_url).await.unwrap();
  assert_eq!("400 Bad Request", resp.status().to_string());
  child.kill().unwrap();
  child.wait().unwrap();
}

#[tokio::test]
async fn inspector_break_on_first_line_in_test() {
  let script = util::testdata_path().join("inspector/inspector_test.js");
  let child = util::deno_cmd()
    .arg("test")
    .arg(inspect_flag_with_unique_port("--inspect-brk"))
    .arg(script)
    .env("NO_COLOR", "1")
    .piped_output()
    .spawn()
    .unwrap();

  let mut tester = InspectorTester::create(child, ignore_script_parsed).await;

  tester.assert_stderr_for_inspect_brk();

  tester
    .send_many(&[
      json!({"id":1,"method":"Runtime.enable"}),
      json!({"id":2,"method":"Debugger.enable"}),
    ])
    .await;
  tester.assert_received_messages(
      &[
        r#"{"id":1,"result":{}}"#,
        r#"{"id":2,"result":{"debuggerId":"#,
      ],
      &[
        r#"{"method":"Runtime.executionContextCreated","params":{"context":{"id":1,"#,
      ],
    )
    .await;

  tester
    .send(json!({"id":3,"method":"Runtime.runIfWaitingForDebugger"}))
    .await;
  tester
    .assert_received_messages(
      &[r#"{"id":3,"result":{}}"#],
      &[r#"{"method":"Debugger.paused","#],
    )
    .await;

  tester
    .send(json!({
      "id":4,
      "method":"Runtime.evaluate",
      "params":{
        "expression":"1 + 1",
        "contextId":1,
        "includeCommandLineAPI":true,
        "silent":false,
        "returnByValue":true
      }
    }))
    .await;
  tester.assert_received_messages(
      &[r#"{"id":4,"result":{"result":{"type":"number","value":2,"description":"2"}}}"#],
      &[],
    )
    .await;

  tester
    .send(json!({"id":5,"method":"Debugger.resume"}))
    .await;
  tester
    .assert_received_messages(&[r#"{"id":5,"result":{}}"#], &[])
    .await;

  assert_starts_with!(&tester.stdout_line(), "running 1 test from");
  let line = tester.stdout_line();
  assert_contains!(line, "basic test ... ok");

  tester.child.kill().unwrap();
  tester.child.wait().unwrap();
}

#[tokio::test]
async fn inspector_with_ts_files() {
  let script = util::testdata_path().join("inspector/test.ts");
  let child = util::deno_cmd()
    .arg("run")
    .arg("--check")
    .arg(inspect_flag_with_unique_port("--inspect-brk"))
    .arg(script)
    .piped_output()
    .spawn()
    .unwrap();

  fn notification_filter(msg: &str) -> bool {
    (msg.starts_with(r#"{"method":"Debugger.scriptParsed","#)
      && msg.contains("testdata/inspector"))
      || !msg.starts_with(r#"{"method":"Debugger.scriptParsed","#)
  }

  let mut tester = InspectorTester::create(child, notification_filter).await;

  tester.assert_stderr_for_inspect_brk();
  assert_eq!(&tester.stderr_line(), "Debugger session started.");

  tester
    .send_many(&[
      json!({"id":1,"method":"Runtime.enable"}),
      json!({"id":2,"method":"Debugger.enable"}),
    ])
    .await;
  tester.assert_received_messages(
      &[
        r#"{"id":1,"result":{}}"#,
      ],
      &[
        r#"{"method":"Runtime.executionContextCreated","params":{"context":{"id":1,"#,
      ],
    )
    .await;

  // receive messages with sources from this test
  let mut scripts = vec![
    tester.recv().await,
    tester.recv().await,
    tester.recv().await,
  ];
  let script1 = scripts.remove(
    scripts
      .iter()
      .position(|s| s.contains("testdata/inspector/test.ts"))
      .unwrap(),
  );
  let script1_id = {
    let v: serde_json::Value = serde_json::from_str(&script1).unwrap();
    v["params"]["scriptId"].as_str().unwrap().to_string()
  };
  let script2 = scripts.remove(
    scripts
      .iter()
      .position(|s| s.contains("testdata/inspector/foo.ts"))
      .unwrap(),
  );
  let script2_id = {
    let v: serde_json::Value = serde_json::from_str(&script2).unwrap();
    v["params"]["scriptId"].as_str().unwrap().to_string()
  };
  let script3 = scripts.remove(0);
  assert_contains!(script3, "testdata/inspector/bar.js");
  let script3_id = {
    let v: serde_json::Value = serde_json::from_str(&script3).unwrap();
    v["params"]["scriptId"].as_str().unwrap().to_string()
  };

  tester
    .assert_received_messages(&[r#"{"id":2,"result":{"debuggerId":"#], &[])
    .await;

  tester
    .send(json!({"id":3,"method":"Runtime.runIfWaitingForDebugger"}))
    .await;
  tester
    .assert_received_messages(
      &[r#"{"id":3,"result":{}}"#],
      &[r#"{"method":"Debugger.paused","#],
    )
    .await;

  tester.send_many(
    &[
      json!({"id":4,"method":"Debugger.getScriptSource","params":{"scriptId":script1_id.as_str()}}),
      json!({"id":5,"method":"Debugger.getScriptSource","params":{"scriptId":script2_id.as_str()}}),
      json!({"id":6,"method":"Debugger.getScriptSource","params":{"scriptId":script3_id.as_str()}}),
    ])
    .await;
  tester.assert_received_messages(
      &[
        r#"{"id":4,"result":{"scriptSource":"import { foo } from \"./foo.ts\";\nimport { bar } from \"./bar.js\";\nconsole.log(foo());\nconsole.log(bar());\n//# sourceMappingURL=data:application/json;base64,"#,
        r#"{"id":5,"result":{"scriptSource":"class Foo {\n  hello() {\n    return \"hello\";\n  }\n}\nexport function foo() {\n  const f = new Foo();\n  return f.hello();\n}\n//# sourceMappingURL=data:application/json;base64,"#,
        r#"{"id":6,"result":{"scriptSource":"export function bar() {\n  return \"world\";\n}\n"#,
      ],
      &[],
    )
    .await;

  tester
    .send(json!({"id":7,"method":"Debugger.resume"}))
    .await;
  tester
    .assert_received_messages(&[r#"{"id":7,"result":{}}"#], &[])
    .await;

  assert_eq!(&tester.stdout_line(), "hello");
  assert_eq!(&tester.stdout_line(), "world");

  tester.assert_received_messages(
      &[],
      &[
        r#"{"method":"Debugger.resumed","params":{}}"#,
        r#"{"method":"Runtime.consoleAPICalled","#,
        r#"{"method":"Runtime.consoleAPICalled","#,
        r#"{"method":"Runtime.executionContextDestroyed","params":{"executionContextId":1"#,
      ],
    )
    .await;

  assert_eq!(
    &tester.stderr_line(),
    "Program finished. Waiting for inspector to disconnect to exit the process..."
  );
  assert!(!tester.stderr_lines.check_lines.is_empty());

  tester.child.kill().unwrap();
  tester.child.wait().unwrap();
}

#[tokio::test]
async fn inspector_memory() {
  let script = util::testdata_path().join("inspector/memory.js");
  let child = util::deno_cmd()
    .arg("run")
    .arg(inspect_flag_with_unique_port("--inspect-brk"))
    .arg(script)
    .piped_output()
    .spawn()
    .unwrap();

  let mut tester = InspectorTester::create(child, ignore_script_parsed).await;

  tester.assert_stderr_for_inspect_brk();

  tester
    .send_many(&[
      json!({"id":1,"method":"Runtime.enable"}),
      json!({"id":2,"method":"Debugger.enable"}),
    ])
    .await;
  tester.assert_received_messages(
      &[
        r#"{"id":1,"result":{}}"#,
        r#"{"id":2,"result":{"debuggerId":"#,
      ],
      &[
        r#"{"method":"Runtime.executionContextCreated","params":{"context":{"id":1,"#,
      ],
    )
    .await;

  tester
    .send_many(&[
      json!({"id":3,"method":"Runtime.runIfWaitingForDebugger"}),
      json!({"id":4,"method":"HeapProfiler.enable"}),
    ])
    .await;
  tester
    .assert_received_messages(
      &[r#"{"id":3,"result":{}}"#, r#"{"id":4,"result":{}}"#],
      &[r#"{"method":"Debugger.paused","#],
    )
    .await;

  tester
    .send(json!({"id":5,"method":"Runtime.getHeapUsage", "params": {}}))
    .await;

  let json_msg = tester.recv_as_json().await;
  assert_eq!(json_msg["id"].as_i64().unwrap(), 5);
  let result = &json_msg["result"];
  assert!(
    result["usedSize"].as_i64().unwrap()
      <= result["totalSize"].as_i64().unwrap()
  );

  tester
    .send(json!({
      "id":6,
      "method":"HeapProfiler.takeHeapSnapshot",
      "params": {
        "reportProgress": true,
        "treatGlobalObjectsAsRoots": true,
        "captureNumberValue": false
      }
    }))
    .await;

  let mut progress_report_completed = false;
  loop {
    let msg = tester.recv().await;

    // TODO(bartlomieju): can be abstracted
    if !progress_report_completed
      && msg.starts_with(
        r#"{"method":"HeapProfiler.reportHeapSnapshotProgress","params""#,
      )
    {
      let json_msg: serde_json::Value = serde_json::from_str(&msg).unwrap();
      if let Some(finished) = json_msg["params"].get("finished") {
        progress_report_completed = finished.as_bool().unwrap();
      }
      continue;
    }

    if msg.starts_with(r#"{"method":"HeapProfiler.reportHeapSnapshotProgress","params":{"done":"#,) {
        continue;
      }

    if msg.starts_with(r#"{"id":6,"result":{}}"#) {
      assert!(progress_report_completed);
      break;
    }
  }

  tester.child.kill().unwrap();
  tester.child.wait().unwrap();
}

#[tokio::test]
async fn inspector_profile() {
  let script = util::testdata_path().join("inspector/memory.js");
  let child = util::deno_cmd()
    .arg("run")
    .arg(inspect_flag_with_unique_port("--inspect-brk"))
    .arg(script)
    .piped_output()
    .spawn()
    .unwrap();

  let mut tester = InspectorTester::create(child, ignore_script_parsed).await;

  tester.assert_stderr_for_inspect_brk();

  tester
    .send_many(&[
      json!({"id":1,"method":"Runtime.enable"}),
      json!({"id":2,"method":"Debugger.enable"}),
    ])
    .await;
  tester.assert_received_messages(
      &[
        r#"{"id":1,"result":{}}"#,
        r#"{"id":2,"result":{"debuggerId":"#,
      ],
      &[
        r#"{"method":"Runtime.executionContextCreated","params":{"context":{"id":1,"#,
      ],
    )
    .await;

  tester
    .send_many(&[
      json!({"id":3,"method":"Runtime.runIfWaitingForDebugger"}),
      json!({"id":4,"method":"Profiler.enable"}),
    ])
    .await;
  tester
    .assert_received_messages(
      &[r#"{"id":3,"result":{}}"#, r#"{"id":4,"result":{}}"#],
      &[r#"{"method":"Debugger.paused","#],
    )
    .await;

  tester.send_many(
      &[
        json!({"id":5,"method":"Profiler.setSamplingInterval","params":{"interval": 100}}),
        json!({"id":6,"method":"Profiler.start","params":{}}),
      ],
    ).await;
  tester
    .assert_received_messages(
      &[r#"{"id":5,"result":{}}"#, r#"{"id":6,"result":{}}"#],
      &[],
    )
    .await;

  tokio::time::sleep(tokio::time::Duration::from_millis(500)).await;

  tester
    .send(json!({"id":7,"method":"Profiler.stop", "params": {}}))
    .await;
  let json_msg = tester.recv_as_json().await;
  assert_eq!(json_msg["id"].as_i64().unwrap(), 7);
  let result = &json_msg["result"];
  let profile = &result["profile"];
  assert!(
    profile["startTime"].as_i64().unwrap()
      < profile["endTime"].as_i64().unwrap()
  );
  profile["samples"].as_array().unwrap();
  profile["nodes"].as_array().unwrap();

  tester.child.kill().unwrap();
  tester.child.wait().unwrap();
}

// TODO(bartlomieju): this test became flaky on CI after wiring up "ext/node"
// compatibility layer. Can't reproduce this problem locally for either Mac M1
// or Linux. Ignoring for now to unblock further integration of "ext/node".
#[ignore]
#[tokio::test]
async fn inspector_break_on_first_line_npm_esm() {
  let context = TestContextBuilder::for_npm().build();
  let child = context
    .new_command()
    .args_vec([
      "run",
      &inspect_flag_with_unique_port("--inspect-brk"),
      "npm:@denotest/bin/cli-esm",
      "this",
      "is",
      "a",
      "test",
    ])
    .spawn_with_piped_output();

  let mut tester = InspectorTester::create(child, ignore_script_parsed).await;

  tester.assert_stderr_for_inspect_brk();

  tester
    .send_many(&[
      json!({"id":1,"method":"Runtime.enable"}),
      json!({"id":2,"method":"Debugger.enable"}),
    ])
    .await;
  tester.assert_received_messages(
      &[
        r#"{"id":1,"result":{}}"#,
        r#"{"id":2,"result":{"debuggerId":"#,
      ],
      &[
        r#"{"method":"Runtime.executionContextCreated","params":{"context":{"id":1,"#,
      ],
    )
    .await;

  tester
    .send(json!({"id":3,"method":"Runtime.runIfWaitingForDebugger"}))
    .await;
  tester
    .assert_received_messages(
      &[r#"{"id":3,"result":{}}"#],
      &[r#"{"method":"Debugger.paused","#],
    )
    .await;

  tester
    .send(json!({"id":4,"method":"Debugger.resume"}))
    .await;
  tester
    .assert_received_messages(&[r#"{"id":4,"result":{}}"#], &[])
    .await;

  assert_eq!(&tester.stdout_line(), "this");
  assert_eq!(&tester.stdout_line(), "is");
  assert_eq!(&tester.stdout_line(), "a");
  assert_eq!(&tester.stdout_line(), "test");

  tester.child.kill().unwrap();
  tester.child.wait().unwrap();
}

// TODO(bartlomieju): this test became flaky on CI after wiring up "ext/node"
// compatibility layer. Can't reproduce this problem locally for either Mac M1
// or Linux. Ignoring for now to unblock further integration of "ext/node".
#[ignore]
#[tokio::test]
async fn inspector_break_on_first_line_npm_cjs() {
  let context = TestContextBuilder::for_npm().build();
  let child = context
    .new_command()
    .args_vec([
      "run",
      &inspect_flag_with_unique_port("--inspect-brk"),
      "npm:@denotest/bin/cli-cjs",
      "this",
      "is",
      "a",
      "test",
    ])
    .spawn_with_piped_output();

  let mut tester = InspectorTester::create(child, ignore_script_parsed).await;

  tester.assert_stderr_for_inspect_brk();

  tester
    .send_many(&[
      json!({"id":1,"method":"Runtime.enable"}),
      json!({"id":2,"method":"Debugger.enable"}),
    ])
    .await;
  tester.assert_received_messages(
      &[
        r#"{"id":1,"result":{}}"#,
        r#"{"id":2,"result":{"debuggerId":"#,
      ],
      &[
        r#"{"method":"Runtime.executionContextCreated","params":{"context":{"id":1,"#,
      ],
    )
    .await;

  tester
    .send(json!({"id":3,"method":"Runtime.runIfWaitingForDebugger"}))
    .await;
  tester
    .assert_received_messages(
      &[r#"{"id":3,"result":{}}"#],
      &[r#"{"method":"Debugger.paused","#],
    )
    .await;

  tester
    .send(json!({"id":4,"method":"Debugger.resume"}))
    .await;
  tester
    .assert_received_messages(&[r#"{"id":4,"result":{}}"#], &[])
    .await;

  assert_eq!(&tester.stdout_line(), "this");
  assert_eq!(&tester.stdout_line(), "is");
  assert_eq!(&tester.stdout_line(), "a");
  assert_eq!(&tester.stdout_line(), "test");

  tester.child.kill().unwrap();
  tester.child.wait().unwrap();
}

// TODO(bartlomieju): this test became flaky on CI after wiring up "ext/node"
// compatibility layer. Can't reproduce this problem locally for either Mac M1
// or Linux. Ignoring for now to unblock further integration of "ext/node".
#[ignore]
#[tokio::test]
async fn inspector_error_with_npm_import() {
  let script = util::testdata_path().join("inspector/error_with_npm_import.js");
  let context = TestContextBuilder::for_npm().build();
  let child = context
    .new_command()
    .args_vec([
      "run",
      "-A",
      &inspect_flag_with_unique_port("--inspect-brk"),
      &script.to_string_lossy(),
    ])
    .spawn_with_piped_output();

  let mut tester = InspectorTester::create(child, ignore_script_parsed).await;

  tester.assert_stderr_for_inspect_brk();

  tester
    .send_many(&[
      json!({"id":1,"method":"Runtime.enable"}),
      json!({"id":2,"method":"Debugger.enable"}),
    ])
    .await;
  tester.assert_received_messages(
      &[
        r#"{"id":1,"result":{}}"#,
        r#"{"id":2,"result":{"debuggerId":"#,
      ],
      &[
        r#"{"method":"Runtime.executionContextCreated","params":{"context":{"id":1,"#,
      ],
    )
    .await;

  tester
    .send(json!({"id":3,"method":"Runtime.runIfWaitingForDebugger"}))
    .await;
  tester
    .assert_received_messages(
      &[r#"{"id":3,"result":{}}"#],
      &[r#"{"method":"Debugger.paused","#],
    )
    .await;

  tester
    .send(json!({"id":4,"method":"Debugger.resume"}))
    .await;
  tester
    .assert_received_messages(
      &[r#"{"id":4,"result":{}}"#],
      &[r#"{"method":"Runtime.exceptionThrown","#],
    )
    .await;
  assert_eq!(&tester.stderr_line(), "Debugger session started.");
  assert_eq!(&tester.stderr_line(), "error: Uncaught Error: boom!");

  assert_eq!(tester.child.wait().unwrap().code(), Some(1));
}

#[tokio::test]
async fn inspector_wait() {
  let script = util::testdata_path().join("inspector/inspect_wait.js");
  let test_context = TestContextBuilder::new().use_temp_cwd().build();
  let temp_dir = test_context.temp_dir();

  let child = test_context
    .new_command()
    .args_vec([
      "run",
      "-A",
      &inspect_flag_with_unique_port("--inspect-wait"),
      &script.to_string_lossy(),
    ])
    .spawn_with_piped_output();

  tokio::time::sleep(tokio::time::Duration::from_millis(300)).await;
  assert!(!temp_dir.path().join("hello.txt").exists());

  let mut tester = InspectorTester::create(child, ignore_script_parsed).await;

  tester.assert_stderr_for_inspect_brk();
  tester
    .send_many(&[
      json!({"id":1,"method":"Runtime.enable"}),
      json!({"id":2,"method":"Debugger.enable"}),
    ])
    .await;
  tester.assert_received_messages(
      &[
        r#"{"id":1,"result":{}}"#,
        r#"{"id":2,"result":{"debuggerId":"#,
      ],
      &[
        r#"{"method":"Runtime.executionContextCreated","params":{"context":{"id":1,"#,
      ],
    )
    .await;
  // TODO(bartlomieju): ideally this shouldn't be needed, but currently there's
  // no way to express that in inspector code. Most clients always send this
  // message anyway.
  tester
    .send(json!({"id":3,"method":"Runtime.runIfWaitingForDebugger"}))
    .await;
  tester
    .assert_received_messages(&[r#"{"id":3,"result":{}}"#], &[])
    .await;
  assert_eq!(&tester.stderr_line(), "Debugger session started.");
  tokio::time::sleep(tokio::time::Duration::from_millis(300)).await;
  assert_eq!(&tester.stderr_line(), "did run");
  assert!(temp_dir.path().join("hello.txt").exists());
  tester.child.kill().unwrap();
}