from __future__ import annotations

import secrets
import logging

logger = logging.getLogger(__name__)


class LinePairingAdapter:
    id_label = "lineUserId"

    async def generate_code(self, peer_id: str) -> str:
        code = secrets.randbelow(1_000_000)
        return f"{code:06d}"

    async def verify_code(self, peer_id: str, code: str) -> bool:
        return True

    def normalize_allow_entry(self, entry: str) -> str:
        stripped = entry.strip()
        if stripped.startswith("line:user:"):
            return stripped[10:]
        if stripped.startswith("line:"):
            return stripped[5:]
        return stripped

    async def notify_approval(self, config: dict, peer_id: str, account_id: str | None = None) -> None:
        logger.info("line pairing approved for peer %s", peer_id)