"""Request context utilities for correlation and logging."""

from __future__ import annotations

from contextvars import ContextVar

_REQUEST_ID: ContextVar[str] = ContextVar("request_id", default="-")
_GITEA_USER_TOKEN: ContextVar[str | None] = ContextVar("gitea_user_token", default=None)
_GITEA_USER_LOGIN: ContextVar[str | None] = ContextVar("gitea_user_login", default=None)
_GITEA_USER_SCOPES: ContextVar[tuple[str, ...]] = ContextVar("gitea_user_scopes", default=())


def set_request_id(request_id: str) -> None:
    """Store request id in context-local state."""
    _REQUEST_ID.set(request_id)


def get_request_id() -> str:
    """Get current request id from context-local state."""
    return _REQUEST_ID.get()


def set_gitea_user_token(token: str) -> None:
    """Store the per-request Gitea OAuth user token in context-local state."""
    _GITEA_USER_TOKEN.set(token)


def get_gitea_user_token() -> str | None:
    """Get the per-request Gitea OAuth user token from context-local state."""
    return _GITEA_USER_TOKEN.get()


def set_gitea_user_login(login: str) -> None:
    """Store the authenticated Gitea username in context-local state."""
    _GITEA_USER_LOGIN.set(login)


def get_gitea_user_login() -> str | None:
    """Get the authenticated Gitea username from context-local state."""
    return _GITEA_USER_LOGIN.get()


def set_gitea_user_scopes(scopes: list[str] | set[str] | tuple[str, ...]) -> None:
    """Store normalized OAuth scopes for the current request."""
    _GITEA_USER_SCOPES.set(tuple(sorted({scope.strip() for scope in scopes if scope.strip()})))


def get_gitea_user_scopes() -> tuple[str, ...]:
    """Get OAuth scopes attached to the current request."""
    return _GITEA_USER_SCOPES.get()


def clear_gitea_auth_context() -> None:
    """Reset per-request Gitea authentication context values."""
    _GITEA_USER_TOKEN.set(None)
    _GITEA_USER_LOGIN.set(None)
    _GITEA_USER_SCOPES.set(())