from __future__ import annotations

from datetime import datetime, timedelta, timezone
from typing import Any

import jwt

from api.config import settings


def create_access_token(*, user_id: int, profile: dict[str, Any]) -> str:
    now = datetime.now(timezone.utc)
    payload = {
        "sub": str(user_id),
        "uid": user_id,
        "fn": profile.get("first_name"),
        "ln": profile.get("last_name"),
        "un": profile.get("username"),
        "iat": now,
        "exp": now + timedelta(seconds=settings.jwt_ttl_seconds),
    }
    return jwt.encode(payload, settings.session_secret, algorithm="HS256")


def decode_access_token(token: str) -> dict[str, Any]:
    return jwt.decode(token, settings.session_secret, algorithms=["HS256"])