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"""Campaign clusterer protocol — layer above identity resolution.
Mirrors :mod:`decnet.clustering.base` for the layer above. Each concrete
campaign clusterer implements :class:`CampaignClusterer`; callers obtain
the active instance via
:func:`decnet.clustering.campaign.factory.get_campaign_clusterer`.
The result shape parallels :class:`ClusterResult` but speaks campaign
vocabulary: campaigns formed, identities assigned, campaigns merged,
campaigns unmerged.
"""
from __future__ import annotations
from abc import ABC, abstractmethod
from dataclasses import dataclass, field
from typing import Any
from decnet.web.db.repository import BaseRepository
@dataclass
class CampaignClusterResult:
"""Side-effects produced by a single campaign-clusterer ``tick``.
Consumed by the worker shell to publish on the bus
(``campaign.formed`` / ``campaign.identity.assigned`` /
``campaign.merged`` / ``campaign.unmerged`` plus the cross-family
``identity.campaign.assigned``). DB writes are already committed
by the time this returns.
"""
campaigns_formed: list[dict[str, Any]] = field(default_factory=list)
"""``{"campaign_uuid": str, "identity_uuids": [str, ...]}``."""
identities_assigned: list[dict[str, Any]] = field(default_factory=list)
"""``{"campaign_uuid": str, "identity_uuid": str,
"prior_campaign_uuid": Optional[str]}``."""
campaigns_merged: list[dict[str, Any]] = field(default_factory=list)
"""``{"winner_uuid": str, "loser_uuid": str}``."""
campaigns_unmerged: list[dict[str, Any]] = field(default_factory=list)
"""``{"resurrected_uuid": str, "former_winner_uuid": str}``."""
class CampaignClusterer(ABC):
"""Abstract campaign clusterer.
Single-method contract mirroring :class:`Clusterer`: ``tick`` reads
identities from the repo, projects them to a campaign-level feature
shape, runs a clustering pass, commits ``campaigns`` rows + sets
``attacker_identities.campaign_id``, and returns a
:class:`CampaignClusterResult` summarising side-effects.
Implementations MUST NOT raise from ``tick``: a single bad pass
cannot be allowed to crash the worker.
"""
name: str
@abstractmethod
async def tick(self, repo: BaseRepository) -> CampaignClusterResult:
"""Run a single campaign clustering pass."""
__all__ = ["CampaignClusterer", "CampaignClusterResult"]