import re

from datetime import datetime

from ceph_devstack.resources.ceph.exceptions import TooManyJobsFound

RUN_DIRNAME_PATTERN = re.compile(

r"^(?P<username>^[a-z_]([a-z0-9_-]{0,31}|[a-z0-9_-]{0,30}))-(?P<timestamp>\d{4}-\d{2}-\d{2}_\d{2}:\d{2}:\d{2})"

)

def get_logtimestamp(dirname: str) -> datetime:

match_ = RUN_DIRNAME_PATTERN.search(dirname)

assert match_

return datetime.strptime(match_.group("timestamp"), "%Y-%m-%d_%H:%M:%S")

def get_most_recent_run(runs: list[str]) -> str:

try:

run_name = next(

iter(

sorted(

(

dirname

for dirname in runs

if RUN_DIRNAME_PATTERN.search(dirname)

),

key=lambda dirname: get_logtimestamp(dirname),

reverse=True,

)

)

)

return run_name

except StopIteration as e:

raise FileNotFoundError from e

def get_job_id(jobs: list[str]):

job_dir_pattern = re.compile(r"^\d+$")

dirs = [d for d in jobs if job_dir_pattern.match(d)]

if len(dirs) == 0:

raise FileNotFoundError

elif len(dirs) > 1:

raise TooManyJobsFound(dirs)

return dirs[0]