import datetime
from typing import Callable, Any


class Scheduler:
    def __init__(self):
        self.jobs = {}

    def schedule(
        self,
        name: str,
        every: datetime.timedelta,
        func: Callable[..., None],
        *args: list[Any],
    ):
        self.jobs[name] = {
            "call": func,
            "args": args,
            "timedelta": every,
            "runat": (datetime.datetime.utcnow() + every),
        }

    def unschedule(self, name: str):
        if name in self.jobs:
            del self.jobs[name]

    def run_pending(self):
        now = datetime.datetime.utcnow()
        for job in self.jobs.values():
            if job["runat"] <= now:
                job["runat"] += job["timedelta"]
                job["call"](*job["args"])