import psutil

from app.sample import Sample


def fill(s: Sample) -> None:
    """Fill the mem_* and swap_* fields of a Sample.

    Args:
        s: sample to fill (bytes and 0-100 percentages, via psutil).
    """
    v = psutil.virtual_memory()
    s.mem_used = v.used
    s.mem_total = v.total
    s.mem_pct = v.percent
    sw = psutil.swap_memory()
    s.swap_used = sw.used
    s.swap_total = sw.total
    s.swap_pct = sw.percent