"""CPython stub for MicroPython `utime` (led-simulator)."""

import time

_MS_MASK = (1 << 30) - 1


def sleep_ms(ms):
    time.sleep(max(0, ms) / 1000.0)


def sleep(s):
    time.sleep(s)


def ticks_ms():
    return int(time.monotonic() * 1000) & _MS_MASK


def ticks_diff(t1, t0):
    """Approximate MicroPython ticks_diff for host monotonic ms."""
    return ((t1 - t0 + (1 << 29)) & _MS_MASK) - (1 << 29)