from collections import OrderedDict
import time
import logging

logger = logging.getLogger(__name__)


class WorkplaceDeduplicator:
    def __init__(self, max_size: int = 10000, ttl_seconds: int = 300):
        self._seen: OrderedDict[str, float] = OrderedDict()
        self._max_size = max_size
        self._ttl = ttl_seconds

    def is_duplicate(self, msg_id: str) -> bool:
        if not msg_id:
            return False

        now = time.time()

        expired = [k for k, ts in self._seen.items() if now - ts > self._ttl]
        for k in expired:
            self._seen.pop(k, None)

        if msg_id in self._seen:
            return True

        if len(self._seen) >= self._max_size:
            self._seen.popitem(last=False)

        self._seen[msg_id] = now
        return False

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