#![cfg(not(target_os = "macos"))]

mod support;

use std::fs;
use std::io::{BufRead, BufReader, Write};
use std::os::unix::net::{UnixListener, UnixStream};
use std::path::{Path, PathBuf};
use std::process::{Command, Stdio};
use std::thread;
use std::time::{Duration, Instant, SystemTime, UNIX_EPOCH};

use portable_pty::{native_pty_system, Child, CommandBuilder, MasterPty, PtySize};
use support::{
    cleanup_test_base, register_runtime_dir, register_spawned_herdr_pid,
    unregister_spawned_herdr_pid,
};

fn unique_test_dir() -> PathBuf {
    let nanos = SystemTime::now()
        .duration_since(UNIX_EPOCH)
        .map(|d| d.as_nanos())
        .unwrap_or(0);
    PathBuf::from(format!("/tmp/hcli-{}-{nanos}", std::process::id()))
}

struct SpawnedHerdr {
    _master: Box<dyn MasterPty + Send>,
    child: Box<dyn Child + Send + Sync>,
}

impl Drop for SpawnedHerdr {
    fn drop(&mut self) {
        let pid = self.child.process_id();
        let _ = self.child.kill();

        if let Some(pid) = pid {
            let deadline = Instant::now() + Duration::from_secs(2);
            while Instant::now() < deadline {
                let mut status = 0;
                let result =
                    unsafe { libc::waitpid(pid as libc::pid_t, &mut status, libc::WNOHANG) };
                if result == pid as libc::pid_t || result == -1 {
                    break;
                }
                thread::sleep(Duration::from_millis(20));
            }

            unregister_spawned_herdr_pid(Some(pid));
        }
    }
}

fn cleanup_spawned_herdr(spawned: SpawnedHerdr, base: PathBuf) {
    drop(spawned);
    cleanup_test_base(&base);
}

fn wait_for_socket(path: &Path, timeout: Duration) {
    let deadline = Instant::now() + timeout;
    while Instant::now() < deadline {
        if path.exists() && std::os::unix::net::UnixStream::connect(path).is_ok() {
            return;
        }
        thread::sleep(Duration::from_millis(25));
    }
    panic!("socket did not appear at {}", path.display());
}

fn spawn_herdr(config_home: &Path, runtime_dir: &Path, socket_path: &Path) -> SpawnedHerdr {
    spawn_herdr_with_path(config_home, runtime_dir, socket_path, None)
}

fn spawn_herdr_with_path(
    config_home: &Path,
    runtime_dir: &Path,
    socket_path: &Path,
    path_override: Option<&Path>,
) -> SpawnedHerdr {
    fs::create_dir_all(config_home.join("herdr")).unwrap();
    fs::create_dir_all(runtime_dir).unwrap();
    register_runtime_dir(runtime_dir);
    fs::write(
        config_home.join("herdr/config.toml"),
        "onboarding = false\n",
    )
    .unwrap();

    let pair = native_pty_system()
        .openpty(PtySize {
            rows: 24,
            cols: 80,
            pixel_width: 0,
            pixel_height: 0,
        })
        .unwrap();

    let mut cmd = CommandBuilder::new(env!("CARGO_BIN_EXE_herdr"));
    cmd.arg("server");
    cmd.env("XDG_CONFIG_HOME", config_home);
    cmd.env("XDG_RUNTIME_DIR", runtime_dir);
    cmd.env("HERDR_SOCKET_PATH", socket_path);
    cmd.env_remove("HERDR_CLIENT_SOCKET_PATH");
    cmd.env("SHELL", "/bin/sh");
    cmd.env_remove("HERDR_ENV");
    if let Some(path) = path_override {
        cmd.env("PATH", path);
    }

    let child = pair.slave.spawn_command(cmd).unwrap();
    register_spawned_herdr_pid(child.process_id());
    SpawnedHerdr {
        _master: pair.master,
        child,
    }
}

fn run_cli(socket_path: &Path, args: &[&str]) -> std::process::Output {
    let mut command = Command::new(env!("CARGO_BIN_EXE_herdr"));
    command.args(args);
    command.env("HERDR_SOCKET_PATH", socket_path);
    command.output().unwrap()
}

fn run_cli_json(socket_path: &Path, args: &[&str]) -> serde_json::Value {
    let output = run_cli(socket_path, args);
    assert!(
        output.status.success(),
        "command failed: herdr {}\nstatus: {:?}\nstderr: {}\nstdout: {}",
        args.join(" "),
        output.status.code(),
        String::from_utf8_lossy(&output.stderr),
        String::from_utf8_lossy(&output.stdout)
    );

    serde_json::from_slice(&output.stdout).unwrap_or_else(|err| {
        panic!(
            "failed to parse JSON response for `herdr {}`: {}\nstdout: {}\nstderr: {}",
            args.join(" "),
            err,
            String::from_utf8_lossy(&output.stdout),
            String::from_utf8_lossy(&output.stderr)
        )
    })
}

fn process_exists(pid: u32) -> bool {
    let result = unsafe { libc::kill(pid as i32, 0) };
    if result == 0 {
        true
    } else {
        std::io::Error::last_os_error().raw_os_error() == Some(libc::EPERM)
    }
}

fn wait_for_pid_exit(pid: u32, timeout: Duration) -> bool {
    let deadline = Instant::now() + timeout;
    while Instant::now() < deadline {
        if !process_exists(pid) {
            return true;
        }
        thread::sleep(Duration::from_millis(25));
    }
    !process_exists(pid)
}

fn wait_for_pid_file(pid_file: &Path, timeout: Duration) -> Result<u32, String> {
    const STABLE_PID_CONTENT_WINDOW: Duration = Duration::from_millis(250);

    let deadline = Instant::now() + timeout;
    let mut last_contents = String::new();
    let mut stable_candidate: Option<(String, u32, Instant)> = None;

    while Instant::now() < deadline {
        if let Ok(contents) = fs::read_to_string(pid_file) {
            let trimmed = contents.trim().to_string();
            last_contents = contents;

            if let Ok(pid) = trimmed.parse::<u32>() {
                match &stable_candidate {
                    Some((candidate_text, candidate_pid, stable_since))
                        if candidate_text == &trimmed && *candidate_pid == pid =>
                    {
                        if stable_since.elapsed() >= STABLE_PID_CONTENT_WINDOW {
                            return Ok(pid);
                        }
                    }
                    _ => {
                        stable_candidate = Some((trimmed, pid, Instant::now()));
                    }
                }
            } else {
                stable_candidate = None;
            }
        }

        thread::sleep(Duration::from_millis(25));
    }

    Err(format!(
        "pid file {} did not contain stable parseable pid before timeout; last contents={:?}",
        pid_file.display(),
        last_contents
    ))
}

#[test]
fn wait_for_pid_file_retries_until_pid_is_written() {
    let base = unique_test_dir();
    fs::create_dir_all(&base).unwrap();
    let pid_file = base.join("delayed.pid");
    fs::write(&pid_file, "").unwrap();

    let writer = thread::spawn({
        let pid_file = pid_file.clone();
        move || {
            thread::sleep(Duration::from_millis(100));
            fs::write(pid_file, "424242\n").unwrap();
        }
    });

    let pid = wait_for_pid_file(&pid_file, Duration::from_secs(2)).unwrap();
    assert_eq!(pid, 424242);

    writer.join().unwrap();
    cleanup_test_base(&base);
}

#[test]
fn wait_for_pid_file_errors_when_file_never_contains_pid() {
    let base = unique_test_dir();
    fs::create_dir_all(&base).unwrap();
    let pid_file = base.join("empty.pid");
    fs::write(&pid_file, "").unwrap();

    let err = wait_for_pid_file(&pid_file, Duration::from_millis(150)).unwrap_err();
    assert!(
        err.contains("did not contain stable parseable pid"),
        "unexpected error: {err}"
    );

    cleanup_test_base(&base);
}

#[test]
fn wait_for_pid_file_rejects_unparseable_partial_write_until_stable_contents() {
    let base = unique_test_dir();
    fs::create_dir_all(&base).unwrap();
    let pid_file = base.join("partial-race.pid");
    fs::write(&pid_file, "").unwrap();

    let writer = thread::spawn({
        let pid_file = pid_file.clone();
        move || {
            thread::sleep(Duration::from_millis(40));
            fs::write(&pid_file, "pid=").unwrap();
            thread::sleep(Duration::from_millis(40));
            fs::write(&pid_file, "pid=424242").unwrap();
            thread::sleep(Duration::from_millis(40));
            fs::write(&pid_file, "424242\n").unwrap();
        }
    });

    let start = Instant::now();
    let pid = wait_for_pid_file(&pid_file, Duration::from_secs(2)).unwrap();
    assert_eq!(pid, 424242);
    assert!(
        start.elapsed() >= Duration::from_millis(300),
        "helper should wait for stable complete contents, elapsed={:?}",
        start.elapsed()
    );

    writer.join().unwrap();
    cleanup_test_base(&base);
}

fn send_request(socket_path: &Path, json: &str) -> serde_json::Value {
    let mut stream = UnixStream::connect(socket_path).unwrap();
    stream.write_all(json.as_bytes()).unwrap();
    stream.write_all(b"\n").unwrap();
    stream.flush().unwrap();

    let mut line = String::new();
    let mut reader = BufReader::new(stream);
    reader.read_line(&mut line).unwrap();
    serde_json::from_str(&line).unwrap()
}

fn run_claude_hook(action: &str, hook_input: &str) -> Option<serde_json::Value> {
    let base = unique_test_dir();
    fs::create_dir_all(&base).unwrap();
    let socket_path = base.join("herdr.sock");
    let listener = UnixListener::bind(&socket_path).unwrap();

    let server = thread::spawn(move || {
        listener.set_nonblocking(true).unwrap();
        let deadline = Instant::now() + Duration::from_millis(700);
        while Instant::now() < deadline {
            match listener.accept() {
                Ok((mut stream, _)) => {
                    let mut line = String::new();
                    let mut reader = BufReader::new(stream.try_clone().unwrap());
                    reader.read_line(&mut line).unwrap();
                    stream
                        .write_all(br#"{"id":"test","result":{"type":"ok"}}"#)
                        .unwrap();
                    stream.write_all(b"\n").unwrap();
                    stream.flush().unwrap();
                    return Some(line);
                }
                Err(err) if err.kind() == std::io::ErrorKind::WouldBlock => {
                    thread::sleep(Duration::from_millis(10));
                }
                Err(err) => panic!("accept failed: {err}"),
            }
        }
        None
    });

    let hook_path = Path::new(env!("CARGO_MANIFEST_DIR"))
        .join("src/integration/assets/claude/herdr-agent-state.sh");
    let mut child = Command::new("bash")
        .arg(hook_path)
        .arg(action)
        .env("HERDR_ENV", "1")
        .env("HERDR_SOCKET_PATH", &socket_path)
        .env("HERDR_PANE_ID", "p_test")
        .stdin(Stdio::piped())
        .stdout(Stdio::piped())
        .stderr(Stdio::piped())
        .spawn()
        .unwrap();
    let mut stdin = child.stdin.take().unwrap();
    stdin.write_all(hook_input.as_bytes()).unwrap();
    drop(stdin);

    let output = child.wait_with_output().unwrap();
    assert!(
        output.status.success(),
        "hook failed: status={:?} stderr={} stdout={}",
        output.status.code(),
        String::from_utf8_lossy(&output.stderr),
        String::from_utf8_lossy(&output.stdout)
    );

    let request = server.join().unwrap();
    cleanup_test_base(&base);
    request.map(|line| serde_json::from_str(&line).unwrap())
}

#[test]
fn claude_hook_reports_subagent_working_and_blocked() {
    let subagent_input = r#"{"hook_event_name":"Notification","agent_id":"agent-abc123","agent_type":"Explore","notification_type":"permission_prompt"}"#;

    let working =
        run_claude_hook("working", subagent_input).expect("subagent working should report working");
    assert_eq!(working["method"], "pane.report_agent");
    assert_eq!(working["params"]["state"], "working");

    let blocked =
        run_claude_hook("blocked", subagent_input).expect("subagent blocked should report blocked");
    assert_eq!(blocked["method"], "pane.report_agent");
    assert_eq!(blocked["params"]["state"], "blocked");
}

#[test]
fn claude_hook_converts_subagent_idle_and_release_to_working() {
    let subagent_input =
        r#"{"hook_event_name":"SubagentStop","agent_id":"agent-abc123","agent_type":"Explore"}"#;

    let idle = run_claude_hook("idle", subagent_input)
        .expect("subagent idle should keep parent pane working");
    assert_eq!(idle["method"], "pane.report_agent");
    assert_eq!(idle["params"]["state"], "working");

    let release = run_claude_hook("release", subagent_input)
        .expect("subagent release should keep parent pane working");
    assert_eq!(release["method"], "pane.report_agent");
    assert_eq!(release["params"]["state"], "working");
}

#[test]
fn claude_hook_keeps_parent_agent_type_only_blocked() {
    let request = run_claude_hook(
        "blocked",
        r#"{"hook_event_name":"PermissionRequest","agent_type":"Explore"}"#,
    )
    .expect("parent blocked should still report blocked");

    assert_eq!(request["method"], "pane.report_agent");
    assert_eq!(request["params"]["state"], "blocked");
}

#[test]
fn pane_run_sends_one_send_input_request_with_enter_key() {
    let base = unique_test_dir();
    fs::create_dir_all(&base).unwrap();
    let socket_path = base.join("herdr.sock");
    let listener = UnixListener::bind(&socket_path).unwrap();

    let server = thread::spawn(move || {
        let (mut first_stream, _) = listener.accept().unwrap();
        let mut first_line = String::new();
        let mut first_reader = BufReader::new(first_stream.try_clone().unwrap());
        first_reader.read_line(&mut first_line).unwrap();
        first_stream
            .write_all(br#"{"id":"cli:request","result":{"type":"ok"}}"#)
            .unwrap();
        first_stream.write_all(b"\n").unwrap();
        first_stream.flush().unwrap();

        let mut second_line = None;
        listener.set_nonblocking(true).unwrap();
        let deadline = Instant::now() + Duration::from_millis(250);
        while Instant::now() < deadline {
            match listener.accept() {
                Ok((mut second_stream, _)) => {
                    let mut line = String::new();
                    let mut reader = BufReader::new(second_stream.try_clone().unwrap());
                    reader.read_line(&mut line).unwrap();
                    second_stream
                        .write_all(br#"{"id":"cli:request","result":{"type":"ok"}}"#)
                        .unwrap();
                    second_stream.write_all(b"\n").unwrap();
                    second_stream.flush().unwrap();
                    second_line = Some(line);
                    break;
                }
                Err(err) if err.kind() == std::io::ErrorKind::WouldBlock => {
                    thread::sleep(Duration::from_millis(10));
                }
                Err(err) => panic!("second accept failed: {err}"),
            }
        }

        (first_line, second_line)
    });

    let run = run_cli(&socket_path, &["pane", "run", "1-1", "echo hello"]);
    assert!(
        run.status.success(),
        "stderr: {}",
        String::from_utf8_lossy(&run.stderr)
    );

    let (first_line, second_line) = server.join().unwrap();
    let first_request: serde_json::Value = serde_json::from_str(&first_line).unwrap();
    assert_eq!(first_request["method"], "pane.send_input");
    assert_eq!(first_request["params"]["pane_id"], "1-1");
    assert_eq!(first_request["params"]["text"], "echo hello");
    assert_eq!(
        first_request["params"]["keys"],
        serde_json::json!(["Enter"])
    );
    assert!(
        second_line.is_none(),
        "pane run sent an unexpected second request: {:?}",
        second_line
    );

    cleanup_test_base(&base);
}

#[test]
fn integration_commands_honor_socket_override_when_server_is_missing() {
    let base = unique_test_dir();
    let home_dir = base.join("home");
    let extensions_dir = home_dir.join(".pi/agent/extensions");
    fs::create_dir_all(&extensions_dir).unwrap();

    let runtime_dir = base.join("runtime");
    fs::create_dir_all(&runtime_dir).unwrap();
    register_runtime_dir(&runtime_dir);
    let missing_socket = runtime_dir.join("missing.sock");

    let expected_extension = extensions_dir.join("herdr-agent-state.ts");
    assert!(
        !expected_extension.exists(),
        "test setup should start without extension file"
    );

    let workspace_list = Command::new(env!("CARGO_BIN_EXE_herdr"))
        .args(["workspace", "list"])
        .env("HERDR_SOCKET_PATH", &missing_socket)
        .env("HOME", &home_dir)
        .output()
        .unwrap();
    assert_eq!(workspace_list.status.code(), Some(1));

    let integration_install = Command::new(env!("CARGO_BIN_EXE_herdr"))
        .args(["integration", "install", "pi"])
        .env("HERDR_SOCKET_PATH", &missing_socket)
        .env("HOME", &home_dir)
        .output()
        .unwrap();
    assert_eq!(integration_install.status.code(), Some(1));
    assert!(
        !expected_extension.exists(),
        "integration install should not run local install logic when socket is missing"
    );

    let integration_uninstall = Command::new(env!("CARGO_BIN_EXE_herdr"))
        .args(["integration", "uninstall", "pi"])
        .env("HERDR_SOCKET_PATH", &missing_socket)
        .env("HOME", &home_dir)
        .output()
        .unwrap();
    assert_eq!(integration_uninstall.status.code(), Some(1));
    assert!(
        !expected_extension.exists(),
        "integration uninstall should also be socket-backed when socket is missing"
    );

    cleanup_test_base(&base);
}

#[test]
fn server_stop_command_shuts_down_running_server() {
    let base = unique_test_dir();
    let config_home = base.join("config");
    let runtime_dir = base.join("runtime");
    let socket_path = runtime_dir.join("herdr.sock");
    let client_socket = runtime_dir.join("herdr-client.sock");

    let mut herdr = spawn_herdr(&config_home, &runtime_dir, &socket_path);
    wait_for_socket(&socket_path, Duration::from_secs(5));
    wait_for_socket(&client_socket, Duration::from_secs(5));

    let stopped = run_cli(&socket_path, &["server", "stop"]);
    assert!(
        stopped.status.success(),
        "stderr: {}",
        String::from_utf8_lossy(&stopped.stderr)
    );
    assert!(
        stopped.stdout.is_empty(),
        "server stop should not print stdout: {}",
        String::from_utf8_lossy(&stopped.stdout)
    );

    let pid = herdr.child.process_id();
    let exit_status = herdr.child.wait().unwrap();
    unregister_spawned_herdr_pid(pid);
    assert!(exit_status.success(), "server stop should exit cleanly");

    let deadline = Instant::now() + Duration::from_secs(3);
    while Instant::now() < deadline && (socket_path.exists() || client_socket.exists()) {
        thread::sleep(Duration::from_millis(25));
    }

    assert!(
        !socket_path.exists() || UnixStream::connect(&socket_path).is_err(),
        "api socket should be removed or stale after server stop"
    );
    assert!(
        !client_socket.exists() || UnixStream::connect(&client_socket).is_err(),
        "client socket should be removed or stale after server stop"
    );

    cleanup_spawned_herdr(herdr, base);
}

#[test]
fn workspace_and_pane_management_commands_work() {
    let base = unique_test_dir();
    let config_home = base.join("config");
    let runtime_dir = base.join("runtime");
    let socket_path = runtime_dir.join("herdr.sock");

    let herdr = spawn_herdr(&config_home, &runtime_dir, &socket_path);
    wait_for_socket(&socket_path, Duration::from_secs(5));

    let reloaded = run_cli(&socket_path, &["server", "reload-config"]);
    assert!(
        reloaded.status.success(),
        "stderr: {}",
        String::from_utf8_lossy(&reloaded.stderr)
    );
    let reload_json: serde_json::Value = serde_json::from_slice(&reloaded.stdout).unwrap();
    assert_eq!(reload_json["result"]["type"], "config_reload");
    assert_eq!(reload_json["result"]["status"], "applied");

    let listed = run_cli(&socket_path, &["workspace", "list"]);
    assert!(listed.status.success());
    let listed_json: serde_json::Value = serde_json::from_slice(&listed.stdout).unwrap();
    assert_eq!(listed_json["result"]["type"], "workspace_list");
    assert_eq!(
        listed_json["result"]["workspaces"]
            .as_array()
            .unwrap()
            .len(),
        0
    );

    let created = run_cli(
        &socket_path,
        &["workspace", "create", "--cwd", base.to_str().unwrap()],
    );
    assert!(created.status.success());
    let created_json: serde_json::Value = serde_json::from_slice(&created.stdout).unwrap();
    let workspace_id = created_json["result"]["workspace"]["workspace_id"]
        .as_str()
        .unwrap()
        .to_string();

    let panes = run_cli(&socket_path, &["pane", "list", "--workspace", "1"]);
    assert!(panes.status.success());
    let panes_json: serde_json::Value = serde_json::from_slice(&panes.stdout).unwrap();
    assert_eq!(panes_json["result"]["panes"].as_array().unwrap().len(), 1);

    let split = run_cli(
        &socket_path,
        &["pane", "split", "1-1", "--direction", "right"],
    );
    assert!(
        split.status.success(),
        "stderr: {}",
        String::from_utf8_lossy(&split.stderr)
    );
    let split_json: serde_json::Value = serde_json::from_slice(&split.stdout).unwrap();
    let split_pane_id = split_json["result"]["pane"]["pane_id"].as_str().unwrap();

    let fetched = run_cli(&socket_path, &["pane", "get", split_pane_id]);
    assert!(fetched.status.success());
    let fetched_json: serde_json::Value = serde_json::from_slice(&fetched.stdout).unwrap();
    assert_eq!(fetched_json["result"]["pane"]["pane_id"], split_pane_id);

    let closed = run_cli(&socket_path, &["pane", "close", split_pane_id]);
    assert!(closed.status.success());
    let closed_json: serde_json::Value = serde_json::from_slice(&closed.stdout).unwrap();
    assert_eq!(closed_json["result"]["type"], "ok");

    let renamed = run_cli(
        &socket_path,
        &["workspace", "rename", &workspace_id, "demo"],
    );
    assert!(renamed.status.success());
    let renamed_json: serde_json::Value = serde_json::from_slice(&renamed.stdout).unwrap();
    assert_eq!(renamed_json["result"]["workspace"]["label"], "demo");

    let focused = run_cli(&socket_path, &["workspace", "focus", &workspace_id]);
    assert!(focused.status.success());

    let closed_workspace = run_cli(&socket_path, &["workspace", "close", &workspace_id]);
    assert!(closed_workspace.status.success());
    let closed_workspace_json: serde_json::Value =
        serde_json::from_slice(&closed_workspace.stdout).unwrap();
    assert_eq!(closed_workspace_json["result"]["type"], "ok");

    cleanup_spawned_herdr(herdr, base);
}

#[test]
fn tab_management_commands_work() {
    let base = unique_test_dir();
    let config_home = base.join("config");
    let runtime_dir = base.join("runtime");
    let socket_path = runtime_dir.join("herdr.sock");

    let herdr = spawn_herdr(&config_home, &runtime_dir, &socket_path);
    wait_for_socket(&socket_path, Duration::from_secs(5));

    let created = run_cli(
        &socket_path,
        &["workspace", "create", "--cwd", base.to_str().unwrap()],
    );
    assert!(created.status.success());
    let created_json: serde_json::Value = serde_json::from_slice(&created.stdout).unwrap();
    let workspace_id = created_json["result"]["workspace"]["workspace_id"]
        .as_str()
        .unwrap()
        .to_string();
    let first_tab_id = created_json["result"]["workspace"]["active_tab_id"]
        .as_str()
        .unwrap()
        .to_string();

    let created_tab = run_cli(
        &socket_path,
        &["tab", "create", "--workspace", &workspace_id],
    );
    assert!(created_tab.status.success());
    let created_tab_json: serde_json::Value = serde_json::from_slice(&created_tab.stdout).unwrap();
    let second_tab_id = created_tab_json["result"]["tab"]["tab_id"]
        .as_str()
        .unwrap()
        .to_string();
    assert_eq!(second_tab_id, format!("{workspace_id}:2"));

    let listed_tabs = run_cli(&socket_path, &["tab", "list", "--workspace", &workspace_id]);
    assert!(listed_tabs.status.success());
    let listed_tabs_json: serde_json::Value = serde_json::from_slice(&listed_tabs.stdout).unwrap();
    assert_eq!(
        listed_tabs_json["result"]["tabs"].as_array().unwrap().len(),
        2
    );

    let renamed_tab = run_cli(&socket_path, &["tab", "rename", &second_tab_id, "logs"]);
    assert!(renamed_tab.status.success());
    let renamed_tab_json: serde_json::Value = serde_json::from_slice(&renamed_tab.stdout).unwrap();
    assert_eq!(renamed_tab_json["result"]["tab"]["label"], "logs");

    let focused_tab = run_cli(&socket_path, &["tab", "focus", &first_tab_id]);
    assert!(focused_tab.status.success());
    let focused_tab_json: serde_json::Value = serde_json::from_slice(&focused_tab.stdout).unwrap();
    assert_eq!(focused_tab_json["result"]["tab"]["tab_id"], first_tab_id);

    let tab_get = run_cli(&socket_path, &["tab", "get", &second_tab_id]);
    assert!(tab_get.status.success());
    let tab_get_json: serde_json::Value = serde_json::from_slice(&tab_get.stdout).unwrap();
    assert_eq!(tab_get_json["result"]["tab"]["tab_id"], second_tab_id);

    let closed_tab = run_cli(&socket_path, &["tab", "close", &second_tab_id]);
    assert!(closed_tab.status.success());
    let closed_tab_json: serde_json::Value = serde_json::from_slice(&closed_tab.stdout).unwrap();
    assert_eq!(closed_tab_json["result"]["type"], "ok");

    cleanup_spawned_herdr(herdr, base);
}

#[test]
fn pane_close_only_removes_the_target_tab_when_other_tabs_exist() {
    let base = unique_test_dir();
    let config_home = base.join("config");
    let runtime_dir = base.join("runtime");
    let socket_path = runtime_dir.join("herdr.sock");

    let herdr = spawn_herdr(&config_home, &runtime_dir, &socket_path);
    wait_for_socket(&socket_path, Duration::from_secs(5));

    let created = run_cli(
        &socket_path,
        &["workspace", "create", "--cwd", base.to_str().unwrap()],
    );
    assert!(created.status.success());
    let created_json: serde_json::Value = serde_json::from_slice(&created.stdout).unwrap();
    let workspace_id = created_json["result"]["workspace"]["workspace_id"]
        .as_str()
        .unwrap()
        .to_string();

    let created_tab = run_cli(
        &socket_path,
        &["tab", "create", "--workspace", &workspace_id],
    );
    assert!(created_tab.status.success());
    let created_tab_json: serde_json::Value = serde_json::from_slice(&created_tab.stdout).unwrap();
    let second_root_pane_id = created_tab_json["result"]["root_pane"]["pane_id"]
        .as_str()
        .unwrap()
        .to_string();

    let closed = run_cli(&socket_path, &["pane", "close", &second_root_pane_id]);
    assert!(closed.status.success());
    let closed_json: serde_json::Value = serde_json::from_slice(&closed.stdout).unwrap();
    assert_eq!(closed_json["result"]["type"], "ok");

    let workspaces = run_cli(&socket_path, &["workspace", "list"]);
    assert!(workspaces.status.success());
    let workspaces_json: serde_json::Value = serde_json::from_slice(&workspaces.stdout).unwrap();
    assert_eq!(
        workspaces_json["result"]["workspaces"]
            .as_array()
            .unwrap()
            .len(),
        1
    );
    assert_eq!(
        workspaces_json["result"]["workspaces"][0]["workspace_id"],
        workspace_id
    );

    let tabs = run_cli(&socket_path, &["tab", "list", "--workspace", &workspace_id]);
    assert!(tabs.status.success());
    let tabs_json: serde_json::Value = serde_json::from_slice(&tabs.stdout).unwrap();
    assert_eq!(tabs_json["result"]["tabs"].as_array().unwrap().len(), 1);

    cleanup_spawned_herdr(herdr, base);
}

#[test]
fn pane_close_removes_the_workspace_when_it_closes_the_last_pane() {
    let base = unique_test_dir();
    let config_home = base.join("config");
    let runtime_dir = base.join("runtime");
    let socket_path = runtime_dir.join("herdr.sock");

    let herdr = spawn_herdr(&config_home, &runtime_dir, &socket_path);
    wait_for_socket(&socket_path, Duration::from_secs(5));

    let created = run_cli(
        &socket_path,
        &["workspace", "create", "--cwd", base.to_str().unwrap()],
    );
    assert!(created.status.success());
    let created_json: serde_json::Value = serde_json::from_slice(&created.stdout).unwrap();
    let root_pane_id = created_json["result"]["root_pane"]["pane_id"]
        .as_str()
        .unwrap()
        .to_string();

    let closed = run_cli(&socket_path, &["pane", "close", &root_pane_id]);
    assert!(closed.status.success());
    let closed_json: serde_json::Value = serde_json::from_slice(&closed.stdout).unwrap();
    assert_eq!(closed_json["result"]["type"], "ok");

    let workspaces = run_cli(&socket_path, &["workspace", "list"]);
    assert!(workspaces.status.success());
    let workspaces_json: serde_json::Value = serde_json::from_slice(&workspaces.stdout).unwrap();
    assert!(workspaces_json["result"]["workspaces"]
        .as_array()
        .unwrap()
        .is_empty());

    cleanup_spawned_herdr(herdr, base);
}

#[test]
fn pane_run_read_and_wait_commands_work() {
    let base = unique_test_dir();
    let config_home = base.join("config");
    let runtime_dir = base.join("runtime");
    let socket_path = runtime_dir.join("herdr.sock");

    let herdr = spawn_herdr(&config_home, &runtime_dir, &socket_path);
    wait_for_socket(&socket_path, Duration::from_secs(5));

    let created = send_request(
        &socket_path,
        &format!(
            r#"{{"id":"req_cli_1","method":"workspace.create","params":{{"cwd":"{}","focus":true}}}}"#,
            base.display()
        ),
    );
    assert!(created["result"]["workspace"]["workspace_id"].is_string());

    let create = run_cli(
        &socket_path,
        &[
            "pane",
            "run",
            "1-1",
            "echo alpha && echo beta && printf 'ready\\n'",
        ],
    );
    assert!(create.status.success());

    let waited = run_cli(
        &socket_path,
        &[
            "wait",
            "output",
            "1-1",
            "--match",
            "ready",
            "--source",
            "recent",
            "--lines",
            "40",
            "--timeout",
            "5000",
        ],
    );
    assert!(
        waited.status.success(),
        "stderr: {}",
        String::from_utf8_lossy(&waited.stderr)
    );
    let waited_json: serde_json::Value = serde_json::from_slice(&waited.stdout).unwrap();
    assert_eq!(waited_json["result"]["type"], "output_matched");

    let read = run_cli(
        &socket_path,
        &["pane", "read", "1-1", "--source", "recent", "--lines", "40"],
    );
    assert!(read.status.success());
    let text = String::from_utf8(read.stdout).unwrap();
    assert!(text.contains("alpha"));
    assert!(text.contains("ready"));

    cleanup_spawned_herdr(herdr, base);
}

#[test]
fn wait_output_matches_recent_unwrapped_text() {
    let base = unique_test_dir();
    let config_home = base.join("config");
    let runtime_dir = base.join("runtime");
    let socket_path = runtime_dir.join("herdr.sock");

    let herdr = spawn_herdr(&config_home, &runtime_dir, &socket_path);
    wait_for_socket(&socket_path, Duration::from_secs(5));

    let created = run_cli(
        &socket_path,
        &["workspace", "create", "--cwd", base.to_str().unwrap()],
    );
    assert!(created.status.success());

    let token = "WRAP_WAIT_TEST_ABCDEFGHIJKLMNOPQRSTUVWXYZ_0123456789_ABCDEFGHIJKLMNOPQRSTUVWXYZ_0123456789";
    let script = base.join("emit-long-token.sh");
    std::fs::write(&script, format!("#!/bin/sh\nprintf '%s\\n' '{token}'\n")).unwrap();
    #[cfg(unix)]
    {
        use std::os::unix::fs::PermissionsExt;
        let mut perms = std::fs::metadata(&script).unwrap().permissions();
        perms.set_mode(0o755);
        std::fs::set_permissions(&script, perms).unwrap();
    }

    let run = run_cli(
        &socket_path,
        &["pane", "run", "1-1", &format!("sh {}", script.display())],
    );
    assert!(run.status.success());

    let waited = run_cli(
        &socket_path,
        &[
            "wait",
            "output",
            "1-1",
            "--match",
            token,
            "--source",
            "recent",
            "--lines",
            "80",
            "--timeout",
            "5000",
        ],
    );
    assert!(
        waited.status.success(),
        "stderr: {} stdout: {}",
        String::from_utf8_lossy(&waited.stderr),
        String::from_utf8_lossy(&waited.stdout)
    );

    let read = run_cli(
        &socket_path,
        &[
            "pane",
            "read",
            "1-1",
            "--source",
            "recent-unwrapped",
            "--lines",
            "80",
        ],
    );
    assert!(read.status.success());
    let text = String::from_utf8(read.stdout).unwrap();
    assert!(text.contains(token));

    cleanup_spawned_herdr(herdr, base);
}

#[test]
fn closing_pane_terminates_processes_inside_it() {
    let base = unique_test_dir();
    let config_home = base.join("config");
    let runtime_dir = base.join("runtime");
    let socket_path = runtime_dir.join("herdr.sock");

    let herdr = spawn_herdr(&config_home, &runtime_dir, &socket_path);
    wait_for_socket(&socket_path, Duration::from_secs(5));

    let created = run_cli(
        &socket_path,
        &["workspace", "create", "--cwd", base.to_str().unwrap()],
    );
    assert!(created.status.success());

    let split = run_cli(
        &socket_path,
        &["pane", "split", "1-1", "--direction", "right"],
    );
    assert!(split.status.success());
    let split_json: serde_json::Value = serde_json::from_slice(&split.stdout).unwrap();
    let pane_id = split_json["result"]["pane"]["pane_id"].as_str().unwrap();

    let pid_file = base.join("pane-close.pid");
    let command = format!(
        "python3 -c 'import os,time,pathlib; pathlib.Path(r\"{}\").write_text(str(os.getpid())); time.sleep(1000)'",
        pid_file.display()
    );
    let ran = run_cli(&socket_path, &["pane", "run", pane_id, &command]);
    assert!(
        ran.status.success(),
        "stderr: {}",
        String::from_utf8_lossy(&ran.stderr)
    );

    let deadline = Instant::now() + Duration::from_secs(5);
    while Instant::now() < deadline && !pid_file.exists() {
        thread::sleep(Duration::from_millis(25));
    }
    assert!(pid_file.exists(), "pid file was not created");

    let pid = wait_for_pid_file(&pid_file, Duration::from_secs(3)).unwrap_or_else(|err| {
        panic!("failed to read pane child pid: {err}");
    });
    assert!(process_exists(pid), "child process was not running");

    let closed = run_cli(&socket_path, &["pane", "close", pane_id]);
    assert!(
        closed.status.success(),
        "stderr: {}",
        String::from_utf8_lossy(&closed.stderr)
    );
    assert!(
        wait_for_pid_exit(pid, Duration::from_secs(3)),
        "process {pid} survived pane close"
    );

    cleanup_spawned_herdr(herdr, base);
}

#[test]
fn closing_workspace_terminates_processes_inside_it() {
    let base = unique_test_dir();
    let config_home = base.join("config");
    let runtime_dir = base.join("runtime");
    let socket_path = runtime_dir.join("herdr.sock");

    let herdr = spawn_herdr(&config_home, &runtime_dir, &socket_path);
    wait_for_socket(&socket_path, Duration::from_secs(5));

    let created = run_cli(
        &socket_path,
        &["workspace", "create", "--cwd", base.to_str().unwrap()],
    );
    assert!(created.status.success());

    let pid_file = base.join("workspace-close.pid");
    let command = format!(
        "python3 -c 'import os,time,pathlib; pathlib.Path(r\"{}\").write_text(str(os.getpid())); time.sleep(1000)'",
        pid_file.display()
    );
    let ran = run_cli(&socket_path, &["pane", "run", "1-1", &command]);
    assert!(
        ran.status.success(),
        "stderr: {}",
        String::from_utf8_lossy(&ran.stderr)
    );

    let deadline = Instant::now() + Duration::from_secs(5);
    while Instant::now() < deadline && !pid_file.exists() {
        thread::sleep(Duration::from_millis(25));
    }
    assert!(pid_file.exists(), "pid file was not created");

    let pid = wait_for_pid_file(&pid_file, Duration::from_secs(3)).unwrap_or_else(|err| {
        panic!("failed to read pane child pid: {err}");
    });
    assert!(process_exists(pid), "child process was not running");

    let closed = run_cli(&socket_path, &["workspace", "close", "1"]);
    assert!(
        closed.status.success(),
        "stderr: {}",
        String::from_utf8_lossy(&closed.stderr)
    );
    assert!(
        wait_for_pid_exit(pid, Duration::from_secs(3)),
        "process {pid} survived workspace close"
    );

    cleanup_spawned_herdr(herdr, base);
}

#[test]
fn workspace_ids_are_stable_and_pane_numbers_stay_compact() {
    let base = unique_test_dir();
    let config_home = base.join("config");
    let runtime_dir = base.join("runtime");
    let socket_path = runtime_dir.join("herdr.sock");

    let herdr = spawn_herdr(&config_home, &runtime_dir, &socket_path);
    wait_for_socket(&socket_path, Duration::from_secs(5));

    let ws1_json = run_cli_json(
        &socket_path,
        &["workspace", "create", "--cwd", base.to_str().unwrap()],
    );
    let ws1_id = ws1_json["result"]["workspace"]["workspace_id"]
        .as_str()
        .unwrap()
        .to_string();

    let split_12_json = run_cli_json(
        &socket_path,
        &["pane", "split", "1-1", "--direction", "right", "--no-focus"],
    );
    assert_eq!(
        split_12_json["result"]["pane"]["pane_id"],
        format!("{ws1_id}-2")
    );

    let split_13_json = run_cli_json(
        &socket_path,
        &["pane", "split", "1-1", "--direction", "down", "--no-focus"],
    );
    assert_eq!(
        split_13_json["result"]["pane"]["pane_id"],
        format!("{ws1_id}-3")
    );

    let ws2_json = run_cli_json(
        &socket_path,
        &["workspace", "create", "--cwd", "/tmp", "--no-focus"],
    );
    let ws2_id = ws2_json["result"]["workspace"]["workspace_id"]
        .as_str()
        .unwrap()
        .to_string();
    assert_ne!(ws2_id, ws1_id);

    let ws2_focus = run_cli(&socket_path, &["workspace", "focus", &ws2_id]);
    assert!(
        ws2_focus.status.success(),
        "stderr: {}",
        String::from_utf8_lossy(&ws2_focus.stderr)
    );

    let ws2_split_json = run_cli_json(
        &socket_path,
        &["pane", "split", "2-1", "--direction", "right", "--no-focus"],
    );
    assert_eq!(
        ws2_split_json["result"]["pane"]["pane_id"],
        format!("{ws2_id}-2")
    );

    let ws3_json = run_cli_json(
        &socket_path,
        &["workspace", "create", "--cwd", "/", "--no-focus"],
    );
    let ws3_id = ws3_json["result"]["workspace"]["workspace_id"]
        .as_str()
        .unwrap()
        .to_string();
    assert_ne!(ws3_id, ws1_id);
    assert_ne!(ws3_id, ws2_id);

    let close_ws2 = run_cli(&socket_path, &["workspace", "close", &ws2_id]);
    assert!(
        close_ws2.status.success(),
        "stderr: {}",
        String::from_utf8_lossy(&close_ws2.stderr)
    );

    let workspaces_json = run_cli_json(&socket_path, &["workspace", "list"]);
    let ids: Vec<String> = workspaces_json["result"]["workspaces"]
        .as_array()
        .unwrap()
        .iter()
        .map(|ws| ws["workspace_id"].as_str().unwrap().to_string())
        .collect();
    assert_eq!(ids, vec![ws1_id.clone(), ws3_id.clone()]);

    let new_ws_json = run_cli_json(
        &socket_path,
        &["workspace", "create", "--cwd", "/var/tmp", "--no-focus"],
    );
    let new_ws_id = new_ws_json["result"]["workspace"]["workspace_id"]
        .as_str()
        .unwrap()
        .to_string();
    assert_ne!(new_ws_id, ws1_id);
    assert_ne!(new_ws_id, ws2_id);
    assert_ne!(new_ws_id, ws3_id);

    let ws3_panes_json = run_cli_json(&socket_path, &["pane", "list", "--workspace", &ws3_id]);
    assert_eq!(
        ws3_panes_json["result"]["panes"][0]["pane_id"],
        format!("{ws3_id}-1")
    );

    let close_middle = run_cli(&socket_path, &["pane", "close", &format!("{ws1_id}-2")]);
    assert!(
        close_middle.status.success(),
        "stderr: {}",
        String::from_utf8_lossy(&close_middle.stderr)
    );

    let ws1_panes_json = run_cli_json(&socket_path, &["pane", "list", "--workspace", &ws1_id]);
    let pane_ids: Vec<String> = ws1_panes_json["result"]["panes"]
        .as_array()
        .unwrap()
        .iter()
        .map(|pane| pane["pane_id"].as_str().unwrap().to_string())
        .collect();
    assert_eq!(pane_ids, vec![format!("{ws1_id}-1"), format!("{ws1_id}-2")]);

    cleanup_spawned_herdr(herdr, base);
}

#[test]
fn pane_shell_gets_herdr_socket_and_pane_env() {
    let base = unique_test_dir();
    let config_home = base.join("config");
    let runtime_dir = base.join("runtime");
    let socket_path = runtime_dir.join("herdr.sock");

    let herdr = spawn_herdr(&config_home, &runtime_dir, &socket_path);
    wait_for_socket(&socket_path, Duration::from_secs(5));

    let created = send_request(
        &socket_path,
        &format!(
            r#"{{"id":"req_env_1","method":"workspace.create","params":{{"cwd":"{}","focus":true}}}}"#,
            base.display()
        ),
    );
    assert!(created["result"]["workspace"]["workspace_id"].is_string());

    let env_capture = base.join("pane-env.txt");
    let ran = run_cli(
        &socket_path,
        &[
            "pane",
            "run",
            "1-1",
            &format!(
                "printf '%s\\n%s\\n' \"$HERDR_SOCKET_PATH\" \"$HERDR_PANE_ID\" > {}",
                env_capture.display()
            ),
        ],
    );
    assert!(ran.status.success());

    let deadline = Instant::now() + Duration::from_secs(3);
    while Instant::now() < deadline && !env_capture.exists() {
        thread::sleep(Duration::from_millis(25));
    }
    assert!(env_capture.exists(), "env capture file was not created");
    let text = fs::read_to_string(&env_capture).unwrap();
    assert!(
        text.contains(&socket_path.display().to_string()),
        "env file was: {text:?}"
    );
    assert!(text.contains("p_"), "env file was: {text:?}");

    cleanup_spawned_herdr(herdr, base);
}

#[test]
fn wait_agent_status_exits_when_idle_status_matches() {
    let base = unique_test_dir();
    let config_home = base.join("config");
    let runtime_dir = base.join("runtime");
    let socket_path = runtime_dir.join("herdr.sock");
    let bin_dir = base.join("bin");

    fs::create_dir_all(&bin_dir).unwrap();
    let fake_pi = bin_dir.join("pi");
    fs::write(
        &fake_pi,
        "#!/bin/sh\nprintf 'Working...\\n'\nsleep 1\nprintf '\\033[2J\\033[Hdone\\n'\n",
    )
    .unwrap();
    #[cfg(unix)]
    {
        use std::os::unix::fs::PermissionsExt;
        let mut perms = fs::metadata(&fake_pi).unwrap().permissions();
        perms.set_mode(0o755);
        fs::set_permissions(&fake_pi, perms).unwrap();
    }

    let inherited_path = std::env::var("PATH").unwrap_or_default();
    let path_override = format!("{}:{}", bin_dir.display(), inherited_path);
    let herdr = spawn_herdr_with_path(
        &config_home,
        &runtime_dir,
        &socket_path,
        Some(Path::new(&path_override)),
    );

    wait_for_socket(&socket_path, Duration::from_secs(5));

    let created = send_request(
        &socket_path,
        &format!(
            r#"{{"id":"req_cli_2","method":"workspace.create","params":{{"cwd":"{}","focus":true}}}}"#,
            base.display()
        ),
    );
    assert!(created["result"]["workspace"]["workspace_id"].is_string());

    let start_pi = run_cli(&socket_path, &["pane", "run", "1-1", "pi"]);
    assert!(start_pi.status.success());

    let waited = run_cli(
        &socket_path,
        &[
            "wait",
            "agent-status",
            "1-1",
            "--status",
            "idle",
            "--timeout",
            "5000",
        ],
    );
    assert!(
        waited.status.success(),
        "stderr: {}",
        String::from_utf8_lossy(&waited.stderr)
    );
    let waited_json: serde_json::Value = serde_json::from_slice(&waited.stdout).unwrap();
    assert_eq!(waited_json["event"], "pane.agent_status_changed");
    assert_eq!(waited_json["data"]["agent_status"], "idle");
    assert_eq!(waited_json["data"]["agent"], "pi");

    cleanup_spawned_herdr(herdr, base);
}

#[test]
fn wait_agent_status_exits_when_done_status_matches() {
    let base = unique_test_dir();
    let config_home = base.join("config");
    let runtime_dir = base.join("runtime");
    let socket_path = runtime_dir.join("herdr.sock");
    let bin_dir = base.join("bin");

    fs::create_dir_all(&bin_dir).unwrap();
    let fake_pi = bin_dir.join("pi");
    fs::write(
        &fake_pi,
        "#!/bin/sh\nprintf 'Working...\\n'\nsleep 1\nprintf '\\033[2J\\033[Hdone\\n'\n",
    )
    .unwrap();
    #[cfg(unix)]
    {
        use std::os::unix::fs::PermissionsExt;
        let mut perms = fs::metadata(&fake_pi).unwrap().permissions();
        perms.set_mode(0o755);
        fs::set_permissions(&fake_pi, perms).unwrap();
    }

    let inherited_path = std::env::var("PATH").unwrap_or_default();
    let path_override = format!("{}:{}", bin_dir.display(), inherited_path);
    let herdr = spawn_herdr_with_path(
        &config_home,
        &runtime_dir,
        &socket_path,
        Some(Path::new(&path_override)),
    );

    wait_for_socket(&socket_path, Duration::from_secs(5));

    let created = send_request(
        &socket_path,
        &format!(
            r#"{{"id":"req_cli_status_1","method":"workspace.create","params":{{"cwd":"{}","focus":true}}}}"#,
            base.display()
        ),
    );
    let workspace_id = created["result"]["workspace"]["workspace_id"]
        .as_str()
        .unwrap()
        .to_string();

    let tab_created = send_request(
        &socket_path,
        &format!(
            r#"{{"id":"req_cli_status_2","method":"tab.create","params":{{"workspace_id":"{}","focus":true}}}}"#,
            workspace_id
        ),
    );
    assert_eq!(tab_created["result"]["type"], "tab_created");

    let start_pi = run_cli(&socket_path, &["pane", "run", "1-1", "pi"]);
    assert!(start_pi.status.success());

    let waited = run_cli(
        &socket_path,
        &[
            "wait",
            "agent-status",
            "1-1",
            "--status",
            "done",
            "--timeout",
            "5000",
        ],
    );
    assert!(
        waited.status.success(),
        "stderr: {}",
        String::from_utf8_lossy(&waited.stderr)
    );
    let waited_json: serde_json::Value = serde_json::from_slice(&waited.stdout).unwrap();
    assert_eq!(waited_json["event"], "pane.agent_status_changed");
    assert_eq!(waited_json["data"]["agent_status"], "done");
    assert_eq!(waited_json["data"]["agent"], "pi");

    cleanup_spawned_herdr(herdr, base);
}