from __future__ import annotations

import time


class RingCentralDeduplicator:
    def __init__(self, ttl_seconds: int = 300, max_entries: int = 10000):
        self._seen: dict[str, float] = {}
        self.ttl_seconds = ttl_seconds
        self.max_entries = max_entries

    def is_duplicate(self, key: str) -> bool:
        self._evict_expired()
        return key in self._seen

    def mark_seen(self, key: str) -> None:
        self._seen[key] = time.time()
        if len(self._seen) > self.max_entries:
            self._evict_oldest()

    def reset(self) -> None:
        self._seen.clear()

    def _evict_expired(self) -> None:
        now = time.time()
        expired = [k for k, t in self._seen.items() if now - t > self.ttl_seconds]
        for k in expired:
            del self._seen[k]

    def _evict_oldest(self) -> None:
        excess = len(self._seen) - self.max_entries
        if excess <= 0:
            return
        sorted_keys = sorted(self._seen, key=lambda k: self._seen[k])
        for k in sorted_keys[:excess]:
            del self._seen[k]