bun_runtime 0.1.0

// @trace REQ-ENG-006 [api:node:console]
use ::std::cell::RefCell;
use ::std::collections::HashMap;
use ::std::ptr::NonNull;
use ::std::sync::{Mutex, OnceLock};
use ::std::time::Instant;
use bun_core::ZBox;

use mozjs::jsapi::*;
use mozjs::jsval::{
    BooleanValue, DoubleValue, Int32Value, JSVal, ObjectValue, StringValue, UndefinedValue,
};
use mozjs::rooted;
use mozjs::rust::wrappers2 as w2;

use crate::require::cache_builtin;

/// Console timers storage — Mutex for cross-call safety (console.time/timeEnd
/// can be called from different scopes). Key = label, Value = Instant.
static CONSOLE_TIMERS: OnceLock<Mutex<HashMap<String, Instant>>> = OnceLock::new();

/// Console counters storage.
static CONSOLE_COUNTERS: OnceLock<Mutex<HashMap<String, u32>>> = OnceLock::new();

fn console_timers() -> &'static Mutex<HashMap<String, Instant>> {
    CONSOLE_TIMERS.get_or_init(|| Mutex::new(HashMap::new()))
}

fn console_counters() -> &'static Mutex<HashMap<String, u32>> {
    CONSOLE_COUNTERS.get_or_init(|| Mutex::new(HashMap::new()))
}

thread_local! {
    /// Indent level for console.group/groupEnd
    static CONSOLE_INDENT: RefCell<u32> = const { RefCell::new(0) };
}

pub fn install(cx: &mut mozjs::context::JSContext) {
    rooted!(&in(cx) let console_obj = unsafe { w2::JS_NewPlainObject(cx) });
    if console_obj.get().is_null() {
        return;
    }

    unsafe {
        // Logging methods
        w2::JS_DefineFunction(
            cx,
            console_obj.handle(),
            c"log".as_ptr(),
            Some(console_log),
            0,
            JSPROP_ENUMERATE as u32,
        );
        w2::JS_DefineFunction(
            cx,
            console_obj.handle(),
            c"warn".as_ptr(),
            Some(console_warn),
            0,
            JSPROP_ENUMERATE as u32,
        );
        w2::JS_DefineFunction(
            cx,
            console_obj.handle(),
            c"error".as_ptr(),
            Some(console_error),
            0,
            JSPROP_ENUMERATE as u32,
        );
        w2::JS_DefineFunction(
            cx,
            console_obj.handle(),
            c"info".as_ptr(),
            Some(console_info),
            0,
            JSPROP_ENUMERATE as u32,
        );
        w2::JS_DefineFunction(
            cx,
            console_obj.handle(),
            c"debug".as_ptr(),
            Some(console_debug),
            0,
            JSPROP_ENUMERATE as u32,
        );

        // Formatting methods
        w2::JS_DefineFunction(
            cx,
            console_obj.handle(),
            c"dir".as_ptr(),
            Some(console_dir),
            1,
            JSPROP_ENUMERATE as u32,
        );
        w2::JS_DefineFunction(
            cx,
            console_obj.handle(),
            c"dirxml".as_ptr(),
            Some(console_dir),
            1,
            JSPROP_ENUMERATE as u32,
        );
        w2::JS_DefineFunction(
            cx,
            console_obj.handle(),
            c"table".as_ptr(),
            Some(console_table),
            1,
            JSPROP_ENUMERATE as u32,
        );

        // Timer methods
        w2::JS_DefineFunction(
            cx,
            console_obj.handle(),
            c"time".as_ptr(),
            Some(console_time),
            0,
            JSPROP_ENUMERATE as u32,
        );
        w2::JS_DefineFunction(
            cx,
            console_obj.handle(),
            c"timeEnd".as_ptr(),
            Some(console_time_end),
            0,
            JSPROP_ENUMERATE as u32,
        );
        w2::JS_DefineFunction(
            cx,
            console_obj.handle(),
            c"timeLog".as_ptr(),
            Some(console_time_log),
            0,
            JSPROP_ENUMERATE as u32,
        );

        // Trace / assert
        w2::JS_DefineFunction(
            cx,
            console_obj.handle(),
            c"trace".as_ptr(),
            Some(console_trace),
            0,
            JSPROP_ENUMERATE as u32,
        );
        w2::JS_DefineFunction(
            cx,
            console_obj.handle(),
            c"assert".as_ptr(),
            Some(console_assert),
            0,
            JSPROP_ENUMERATE as u32,
        );

        // Counter methods
        w2::JS_DefineFunction(
            cx,
            console_obj.handle(),
            c"count".as_ptr(),
            Some(console_count),
            0,
            JSPROP_ENUMERATE as u32,
        );
        w2::JS_DefineFunction(
            cx,
            console_obj.handle(),
            c"countReset".as_ptr(),
            Some(console_count_reset),
            0,
            JSPROP_ENUMERATE as u32,
        );

        // Grouping methods
        w2::JS_DefineFunction(
            cx,
            console_obj.handle(),
            c"group".as_ptr(),
            Some(console_group),
            0,
            JSPROP_ENUMERATE as u32,
        );
        w2::JS_DefineFunction(
            cx,
            console_obj.handle(),
            c"groupCollapsed".as_ptr(),
            Some(console_group),
            0,
            JSPROP_ENUMERATE as u32,
        );
        w2::JS_DefineFunction(
            cx,
            console_obj.handle(),
            c"groupEnd".as_ptr(),
            Some(console_group_end),
            0,
            JSPROP_ENUMERATE as u32,
        );

        // Clear
        w2::JS_DefineFunction(
            cx,
            console_obj.handle(),
            c"clear".as_ptr(),
            Some(console_clear),
            0,
            JSPROP_ENUMERATE as u32,
        );
    }

    cache_builtin(cx, "console", console_obj.get());

    // Bind globalThis.console. `bao_engine`'s realm bootstrap installs a
    // minimal fallback console (`bun_sm::host_fn::install_console`) before
    // `global_setup` runs; without this define, that fallback — which routes
    // error/warn to stdout and drops timer/count output into the `log` crate
    // — shadows this full Node-semantics implementation on every
    // `BaoRuntime` global. Defining here overrides it (the fallback property
    // is writable) so the runtime's single console reaches script code.
    let global = unsafe { CurrentGlobalOrNull(cx.raw_cx()) };
    if !global.is_null() {
        rooted!(&in(cx) let global_rooted = global);
        unsafe {
            w2::JS_DefineProperty3(
                cx,
                global_rooted.handle(),
                c"console".as_ptr(),
                console_obj.handle(),
                JSPROP_ENUMERATE as u32,
            );
        }
    }
}

// --- Helper: format arguments to a string ---

#[allow(unsafe_op_in_unsafe_fn)]
unsafe fn format_args(cx: *mut JSContext, args: &CallArgs) -> String {
    let mut parts: Vec<String> = Vec::new();
    for i in 0..args.argc_ {
        let val = *args.get(i).ptr;
        let s = js_val_to_display_string(cx, val);
        parts.push(s);
    }
    parts.join(" ")
}

#[allow(unsafe_op_in_unsafe_fn)]
unsafe fn js_val_to_display_string(cx: *mut JSContext, val: JSVal) -> String {
    if val.is_undefined() {
        return "undefined".to_string();
    }
    if val.is_null() {
        return "null".to_string();
    }
    if val.is_boolean() {
        return if val.to_boolean() {
            "true".to_string()
        } else {
            "false".to_string()
        };
    }
    if val.is_int32() {
        return val.to_int32().to_string();
    }
    if val.is_double() {
        return format!("{}", val.to_double());
    }
    if val.is_string() {
        let s = val.to_string();
        if !s.is_null() {
            return crate::jsstr_to_rust_string(cx, s);
        }
        return String::new();
    }
    if val.is_object() {
        // Try JSON.stringify for objects, fallback to toString
        let mut wrapped_cx = mozjs::context::JSContext::from_ptr(NonNull::new_unchecked(cx));
        let cx_ref = &mut wrapped_cx;
        rooted!(&in(cx_ref) let obj = val.to_object());

        // Try JSON.stringify
        let global = CurrentGlobalOrNull(cx);
        if !global.is_null() {
            rooted!(&in(cx_ref) let global_rooted = global);
            let mut json_val = UndefinedValue();
            JS_GetProperty(
                cx,
                global_rooted.handle().into(),
                c"JSON".as_ptr(),
                MutableHandle::<Value> {
                    _phantom_0: ::std::marker::PhantomData,
                    ptr: &mut json_val,
                },
            );
            if json_val.is_object() {
                rooted!(&in(cx_ref) let json_obj = json_val.to_object());
                let mut stringify_val = UndefinedValue();
                JS_GetProperty(
                    cx,
                    json_obj.handle().into(),
                    c"stringify".as_ptr(),
                    MutableHandle::<Value> {
                        _phantom_0: ::std::marker::PhantomData,
                        ptr: &mut stringify_val,
                    },
                );
                if stringify_val.is_object() {
                    let elems = [ObjectValue(obj.get())];
                    let call_args = HandleValueArray {
                        length_: elems.len(),
                        elements_: elems.as_ptr(),
                    };
                    rooted!(&in(cx_ref) let stringify_fn = ObjectValue(stringify_val.to_object()));
                    let mut rval = UndefinedValue();
                    JS_CallFunctionValue(
                        cx,
                        json_obj.handle().into(),
                        stringify_fn.handle().into(),
                        &call_args,
                        MutableHandle::<Value> {
                            _phantom_0: ::std::marker::PhantomData,
                            ptr: &mut rval,
                        },
                    );
                    if rval.is_string() {
                        let s = rval.to_string();
                        if !s.is_null() {
                            return crate::jsstr_to_rust_string(cx, s);
                        }
                    }
                }
            }
        }
        // Fallback: try toString()
        let mut to_string_rval = UndefinedValue();
        JS_GetProperty(
            cx,
            obj.handle().into(),
            c"toString".as_ptr(),
            MutableHandle::<Value> {
                _phantom_0: ::std::marker::PhantomData,
                ptr: &mut to_string_rval,
            },
        );
        if to_string_rval.is_object() {
            rooted!(&in(cx_ref) let to_string_fn = ObjectValue(to_string_rval.to_object()));
            let null_args = HandleValueArray::empty();
            let mut rval2 = UndefinedValue();
            JS_CallFunctionValue(
                cx,
                obj.handle().into(),
                to_string_fn.handle().into(),
                &null_args,
                MutableHandle::<Value> {
                    _phantom_0: ::std::marker::PhantomData,
                    ptr: &mut rval2,
                },
            );
            if rval2.is_string() {
                let s = rval2.to_string();
                if !s.is_null() {
                    return crate::jsstr_to_rust_string(cx, s);
                }
            }
        }
        return "[object]".to_string();
    }
    String::new()
}

/// Get the indent prefix string based on current indent level.
fn get_indent_prefix() -> String {
    CONSOLE_INDENT.with(|indent| {
        let level = *indent.borrow();
        "  ".repeat(level as usize)
    })
}

// --- Output routing (Node stream semantics) ---
//
// Node: console.log/info/debug/dir/table/timeEnd/timeLog/count/group write to
// stdout; console.warn/error/trace/assert (and the timer/counter "Warning:
// ..." diagnostics Node routes through console.warn) write to stderr. All
// writes go through the unified `bun_core::output` layer — buffering, TTY
// detection and flush semantics stay in one place; there is no second output
// path to drift from process.stdout.write.

/// Bring up this thread's `bun_core::output::Source` if not yet configured.
/// Idempotent; publishes the global stream slots from the real stdio fds on
/// first use (bare embedders), otherwise adopts them — without init_test's
/// colour forcing or configure_thread's JS StackCheck FFI (a console write
/// never executes JavaScript).
fn ensure_output_source() {
    bun_core::output::Source::ensure_thread_source();
}

/// Console stdout line (trailing `\n` appended here).
#[inline]
fn console_out(line: &str) {
    ensure_output_source();
    let mut bytes = Vec::with_capacity(line.len() + 1);
    bytes.extend_from_slice(line.as_bytes());
    bytes.push(b'\n');
    bun_core::output::write_bytes(bun_core::output::Destination::Stdout, &bytes);
}

/// Console stderr line (trailing `\n` appended here).
#[inline]
fn console_err(line: &str) {
    ensure_output_source();
    let mut bytes = Vec::with_capacity(line.len() + 1);
    bytes.extend_from_slice(line.as_bytes());
    bytes.push(b'\n');
    bun_core::output::write_bytes(bun_core::output::Destination::Stderr, &bytes);
}

/// Wrap `s` in an ANSI colour when stderr colours are enabled (TTY); plain
/// bytes otherwise so piped/CI consumers get clean output.
#[inline]
fn stderr_coloured(code: &str, s: &str) -> String {
    if bun_core::output::enable_ansi_colors_stderr() {
        format!("{}{}\x1b[0m", code, s)
    } else {
        s.to_string()
    }
}

// --- Logging natives ---

#[allow(unsafe_op_in_unsafe_fn)]
unsafe extern "C" fn console_log(cx: *mut JSContext, argc: u32, vp: *mut JSVal) -> bool {
    let args = CallArgs::from_vp(vp, argc);
    let prefix = get_indent_prefix();
    let msg = format_args(cx, &args);
    console_out(&format!("{}{}", prefix, msg));
    args.rval().set(UndefinedValue());
    true
}

#[allow(unsafe_op_in_unsafe_fn)]
unsafe extern "C" fn console_warn(cx: *mut JSContext, argc: u32, vp: *mut JSVal) -> bool {
    let args = CallArgs::from_vp(vp, argc);
    let prefix = get_indent_prefix();
    let msg = format_args(cx, &args);
    console_err(&stderr_coloured("\x1b[33m", &format!("{}{}", prefix, msg)));
    args.rval().set(UndefinedValue());
    true
}

#[allow(unsafe_op_in_unsafe_fn)]
unsafe extern "C" fn console_error(cx: *mut JSContext, argc: u32, vp: *mut JSVal) -> bool {
    let args = CallArgs::from_vp(vp, argc);
    let prefix = get_indent_prefix();
    let msg = format_args(cx, &args);
    console_err(&stderr_coloured("\x1b[31m", &format!("{}{}", prefix, msg)));
    args.rval().set(UndefinedValue());
    true
}

#[allow(unsafe_op_in_unsafe_fn)]
unsafe extern "C" fn console_info(cx: *mut JSContext, argc: u32, vp: *mut JSVal) -> bool {
    // info is same as log in most implementations
    let args = CallArgs::from_vp(vp, argc);
    let prefix = get_indent_prefix();
    let msg = format_args(cx, &args);
    console_out(&format!("{}{}", prefix, msg));
    args.rval().set(UndefinedValue());
    true
}

#[allow(unsafe_op_in_unsafe_fn)]
unsafe extern "C" fn console_debug(cx: *mut JSContext, argc: u32, vp: *mut JSVal) -> bool {
    // debug is same as log in most implementations
    let args = CallArgs::from_vp(vp, argc);
    let prefix = get_indent_prefix();
    let msg = format_args(cx, &args);
    console_out(&format!("{}{}", prefix, msg));
    args.rval().set(UndefinedValue());
    true
}

// --- Formatting ---

#[allow(unsafe_op_in_unsafe_fn)]
unsafe extern "C" fn console_dir(cx: *mut JSContext, argc: u32, vp: *mut JSVal) -> bool {
    let args = CallArgs::from_vp(vp, argc);
    if argc == 0 {
        console_out("undefined");
        args.rval().set(UndefinedValue());
        return true;
    }
    let val = *args.get(0).ptr;
    let s = js_val_to_display_string(cx, val);
    console_out(&s);
    args.rval().set(UndefinedValue());
    true
}

#[allow(unsafe_op_in_unsafe_fn)]
unsafe extern "C" fn console_table(cx: *mut JSContext, argc: u32, vp: *mut JSVal) -> bool {
    let args = CallArgs::from_vp(vp, argc);
    if argc == 0 {
        console_out("undefined");
        args.rval().set(UndefinedValue());
        return true;
    }
    // Simplified: output as formatted string (full table rendering would need
    // column width calculation which is overkill for a native implementation)
    let val = *args.get(0).ptr;
    let s = js_val_to_display_string(cx, val);
    console_out(&s);
    args.rval().set(UndefinedValue());
    true
}

// --- Timers ---

#[allow(unsafe_op_in_unsafe_fn)]
unsafe extern "C" fn console_time(cx: *mut JSContext, argc: u32, vp: *mut JSVal) -> bool {
    let args = CallArgs::from_vp(vp, argc);
    let label = if argc > 0 {
        let val = *args.get(0).ptr;
        if val.is_string() {
            let s = val.to_string();
            if !s.is_null() {
                crate::jsstr_to_rust_string(cx, s)
            } else {
                "default".to_string()
            }
        } else {
            "default".to_string()
        }
    } else {
        "default".to_string()
    };

    let mut timers = console_timers().lock().unwrap();
    timers.insert(label, Instant::now());
    args.rval().set(UndefinedValue());
    true
}

#[allow(unsafe_op_in_unsafe_fn)]
unsafe extern "C" fn console_time_end(cx: *mut JSContext, argc: u32, vp: *mut JSVal) -> bool {
    let args = CallArgs::from_vp(vp, argc);
    let label = if argc > 0 {
        let val = *args.get(0).ptr;
        if val.is_string() {
            let s = val.to_string();
            if !s.is_null() {
                crate::jsstr_to_rust_string(cx, s)
            } else {
                "default".to_string()
            }
        } else {
            "default".to_string()
        }
    } else {
        "default".to_string()
    };

    let mut timers = console_timers().lock().unwrap();
    if let Some(start) = timers.remove(&label) {
        let elapsed = start.elapsed();
        drop(timers);
        let ms = elapsed.as_secs_f64() * 1000.0;
        console_out(&format!("{}: {}ms", label, ms));
    } else {
        drop(timers);
        // Node routes this diagnostic through console.warn → stderr.
        console_err(&format!(
            "Warning: No such label '{}' for console.timeEnd()",
            label
        ));
    }
    args.rval().set(UndefinedValue());
    true
}

#[allow(unsafe_op_in_unsafe_fn)]
unsafe extern "C" fn console_time_log(cx: *mut JSContext, argc: u32, vp: *mut JSVal) -> bool {
    let args = CallArgs::from_vp(vp, argc);
    let label = if argc > 0 {
        let val = *args.get(0).ptr;
        if val.is_string() {
            let s = val.to_string();
            if !s.is_null() {
                crate::jsstr_to_rust_string(cx, s)
            } else {
                "default".to_string()
            }
        } else {
            "default".to_string()
        }
    } else {
        "default".to_string()
    };

    let timers = console_timers().lock().unwrap();
    if let Some(start) = timers.get(&label) {
        let elapsed = start.elapsed();
        drop(timers);
        let ms = elapsed.as_secs_f64() * 1000.0;
        // Additional args after the label
        let mut extra = Vec::new();
        for i in 1..argc {
            let val = *args.get(i).ptr;
            extra.push(js_val_to_display_string(cx, val));
        }
        if extra.is_empty() {
            console_out(&format!("{}: {}ms", label, ms));
        } else {
            console_out(&format!("{}: {}ms {}", label, ms, extra.join(" ")));
        }
    } else {
        drop(timers);
        // Node routes this diagnostic through console.warn → stderr.
        console_err(&format!(
            "Warning: No such label '{}' for console.timeLog()",
            label
        ));
    }
    args.rval().set(UndefinedValue());
    true
}

// --- Trace / Assert ---

#[allow(unsafe_op_in_unsafe_fn)]
unsafe extern "C" fn console_trace(cx: *mut JSContext, argc: u32, vp: *mut JSVal) -> bool {
    let args = CallArgs::from_vp(vp, argc);
    let label = if argc > 0 {
        format!(" {}", format_args(cx, &args))
    } else {
        String::new()
    };

    // Use DescribeScriptedCaller for stack trace
    let mut filename = "<anonymous>".to_string();
    let mut lineno = 1u32;
    let mut colno = 0u32;
    // Allocate a buffer for the filename
    let mut buf = [0u8; 1024];
    if mozjs::glue::DescribeScriptedCaller(
        cx,
        buf.as_mut_ptr() as *mut ::std::os::raw::c_char,
        buf.len(),
        &mut lineno,
        &mut colno,
    ) {
        // Find the null terminator
        let len = buf.iter().position(|&b| b == 0).unwrap_or(buf.len());
        if len > 0 {
            filename = ::std::str::from_utf8(&buf[..len])
                .unwrap_or("<unknown>")
                .to_string();
        }
    }

    // Node: console.trace prints "Trace: ..." + stack to stderr.
    console_err(&format!("Trace{}:", label));
    console_err(&format!(
        "    at <anonymous> ({}:{}:{})",
        filename, lineno, colno
    ));
    args.rval().set(UndefinedValue());
    true
}

#[allow(unsafe_op_in_unsafe_fn)]
unsafe extern "C" fn console_assert(cx: *mut JSContext, argc: u32, vp: *mut JSVal) -> bool {
    let args = CallArgs::from_vp(vp, argc);
    if argc == 0 {
        // console.assert() with no args — no assertion to check
        args.rval().set(UndefinedValue());
        return true;
    }

    let condition = *args.get(0).ptr;
    if condition.is_boolean() && condition.to_boolean() {
        // Assertion passed, do nothing
        args.rval().set(UndefinedValue());
        return true;
    }
    // Also treat truthy non-boolean values as passing
    if !condition.is_boolean() {
        let is_truthy = if condition.is_int32() {
            condition.to_int32() != 0
        } else if condition.is_double() {
            condition.to_double() != 0.0
        } else if condition.is_string() {
            true
        } else if condition.is_object() {
            true
        } else {
            false
        };
        if is_truthy {
            args.rval().set(UndefinedValue());
            return true;
        }
    }

    // Assertion failed
    let mut msg_parts: Vec<String> = vec!["Assertion failed".to_string()];
    if argc > 1 {
        // Extra args after the condition are the message
        let mut extra = Vec::new();
        for i in 1..argc {
            let val = *args.get(i).ptr;
            extra.push(js_val_to_display_string(cx, val));
        }
        if !extra.is_empty() {
            msg_parts.push(extra.join(" "));
        }
    }
    console_err(&stderr_coloured("\x1b[31m", &msg_parts.join(": ")));
    args.rval().set(UndefinedValue());
    true
}

// --- Counters ---

#[allow(unsafe_op_in_unsafe_fn)]
unsafe extern "C" fn console_count(cx: *mut JSContext, argc: u32, vp: *mut JSVal) -> bool {
    let args = CallArgs::from_vp(vp, argc);
    let label = if argc > 0 {
        let val = *args.get(0).ptr;
        if val.is_string() {
            let s = val.to_string();
            if !s.is_null() {
                crate::jsstr_to_rust_string(cx, s)
            } else {
                "default".to_string()
            }
        } else {
            "default".to_string()
        }
    } else {
        "default".to_string()
    };

    let mut counters = console_counters().lock().unwrap();
    let count = counters.entry(label.clone()).or_insert(0);
    *count += 1;
    let current = *count;
    drop(counters);

    console_out(&format!("{}: {}", label, current));
    args.rval().set(UndefinedValue());
    true
}

#[allow(unsafe_op_in_unsafe_fn)]
unsafe extern "C" fn console_count_reset(cx: *mut JSContext, argc: u32, vp: *mut JSVal) -> bool {
    let args = CallArgs::from_vp(vp, argc);
    let label = if argc > 0 {
        let val = *args.get(0).ptr;
        if val.is_string() {
            let s = val.to_string();
            if !s.is_null() {
                crate::jsstr_to_rust_string(cx, s)
            } else {
                "default".to_string()
            }
        } else {
            "default".to_string()
        }
    } else {
        "default".to_string()
    };

    let mut counters = console_counters().lock().unwrap();
    if counters.contains_key(&label) {
        counters.insert(label, 0);
    } else {
        drop(counters);
        // Node routes this diagnostic through console.warn → stderr.
        console_err(&format!("Warning: Count for '{}' does not exist", label));
        args.rval().set(UndefinedValue());
        return true;
    }
    args.rval().set(UndefinedValue());
    true
}

// --- Grouping ---

#[allow(unsafe_op_in_unsafe_fn)]
unsafe extern "C" fn console_group(cx: *mut JSContext, argc: u32, vp: *mut JSVal) -> bool {
    let args = CallArgs::from_vp(vp, argc);
    if argc > 0 {
        let label = format_args(cx, &args);
        console_out(&label);
    }
    CONSOLE_INDENT.with(|indent| {
        *indent.borrow_mut() += 1;
    });
    args.rval().set(UndefinedValue());
    true
}

#[allow(unsafe_op_in_unsafe_fn)]
unsafe extern "C" fn console_group_end(_cx: *mut JSContext, _argc: u32, vp: *mut JSVal) -> bool {
    let args = CallArgs::from_vp(vp, _argc);
    CONSOLE_INDENT.with(|indent| {
        let mut level = indent.borrow_mut();
        if *level > 0 {
            *level -= 1;
        }
    });
    args.rval().set(UndefinedValue());
    true
}

// --- Clear ---

#[allow(unsafe_op_in_unsafe_fn)]
unsafe extern "C" fn console_clear(_cx: *mut JSContext, _argc: u32, vp: *mut JSVal) -> bool {
    let args = CallArgs::from_vp(vp, _argc);
    // ANSI clear screen + move cursor home, on stdout with no trailing
    // newline (Node writes the escape sequence verbatim).
    ensure_output_source();
    bun_core::output::write_bytes(
        bun_core::output::Destination::Stdout,
        b"\x1b[2J\x1b[H",
    );
    args.rval().set(UndefinedValue());
    true
}