TODO: Implement roll_over_proofs() for NIP-60 state transitions #19

TODO Location

sixty_nuts/wallet.py:824

Priority

🔴 High Priority - Core functionality that blocks essential features

Current Code

async def roll_over_proofs(
    self,
    *,
    spent_proofs: list[ProofDict],
    unspent_proofs: list[ProofDict],
    deleted_event_ids: list[str],
) -> str:
    """Roll over unspent proofs after a partial spend and return new token id."""
    # TODO: Implement roll over logic
    return ""

What needs to be done

• Implement the logic for NIP-60 proof rollovers when only some proofs from a token event are spent
• Create a new token event containing only the unspent proofs
• Mark the old token event as superseded using the del field
• Return the new token event ID
• This is critical for proper state transitions and preventing double-spending

Implementation details

1. Convert unspent proofs to NIP-60 format (base64 secrets)
2. Create new token event with del field pointing to old event IDs
3. Publish to relays using EventManager
4. Handle errors gracefully to prevent proof loss