import type { SynthEvent, CanonicalState } from "../types/index.js";
import type { HistoricalAliasRegistry } from "./historical-aliases.js";
export declare function createEmptyState(): CanonicalState;
export declare function applyEvent(state: CanonicalState, event: SynthEvent): CanonicalState;
export declare function rebuildState(events: SynthEvent[]): CanonicalState;
export declare function rebuildStateFromOffset(events: SynthEvent[], startOffset?: number): CanonicalState;
export declare function computeStateHash(state: CanonicalState): string;
export declare function statesEqual(a: CanonicalState, b: CanonicalState): boolean;
/** A single graph-integrity violation found in an event log or replayed state. */
export type AggregateGraphViolation = {
    kind: "malformed-creation" | "duplicate-creation" | "missing-parent-reference" | "broken-parent-reference" | "cycle" | "orphan-aggregate" | "broken-navigation";
    message: string;
    aggregateKind: "mission" | "expedition" | "objective";
    aggregateId: string;
    parentId?: string;
};
export type AggregateGraphNode = {
    id: string;
    kind: "mission" | "expedition" | "objective";
    parentId?: string;
    /** Event id of the canonical creation event, when known. */
    eventId?: string;
};
export declare function creationPayload(event: SynthEvent, key: string): {
    id?: unknown;
    missionId?: unknown;
    expeditionId?: unknown;
} | undefined;
export declare const CREATION_EVENTS: Array<{
    eventType: string;
    payloadKey: string;
    kind: AggregateGraphNode["kind"];
    parentKey?: "missionId" | "expeditionId";
    parentKind?: AggregateGraphNode["kind"];
}>;
export declare function validateAggregateGraph(events: SynthEvent[], state?: CanonicalState, aliasRegistry?: HistoricalAliasRegistry): AggregateGraphViolation[];