# ============================================================================
# memory.py — working memory for the Grounded Theory workbench (stub)
# ============================================================================
#
# This is a scaffolding stub. Future rounds will grow this into a real
# per-run memory that nodes can read from and write to for inter-node
# continuity beyond what fits in the TypedDict state.
#
# For round 1 this is just a dict with a consistent interface, so nodes
# that want to remember something across invocations have a place to
# put it. Not currently used by any real node.
# ============================================================================


class WorkbenchMemory:
    """Tiny in-process memory store. Keyed by arbitrary string."""

    def __init__(self):
        self._store = {}

    def get(self, key, default=None):
        return self._store.get(key, default)

    def put(self, key, value):
        self._store[key] = value

    def clear(self):
        self._store.clear()

    def items(self):
        return list(self._store.items())


# Module-level singleton. Nodes can import and use, or ignore.
memory = WorkbenchMemory()