from __future__ import annotations

import logging
import secrets

logger = logging.getLogger(__name__)


class GitHubPairing:
    def __init__(self):
        self._codes: dict[str, str] = {}

    async def generate_code(self, peer_id: str) -> str:
        code = secrets.token_hex(3).upper()
        self._codes[peer_id] = code
        logger.info("GitHub pairing code generated for %s: %s", peer_id, code)
        return code

    async def verify_code(self, peer_id: str, code: str) -> bool:
        stored = self._codes.get(peer_id, "")
        if stored and stored.upper() == code.upper().strip():
            self._codes.pop(peer_id, None)
            return True
        return False

    def normalize_allow_entry(self, entry: str) -> str:
        return str(entry).strip()