import type { MCPClient } from '../core/database.js';
import type { NarrativeNode, NarrativeEdge } from '../types/graph.js';
import type { ID } from '../types/common.js';
export declare class NarrativeGraphService {
    private readonly client;
    private readonly repo;
    constructor(client: MCPClient);
    upsertNode(node: NarrativeNode): Promise<void>;
    upsertEdge(edge: NarrativeEdge): Promise<void>;
    getNode(id: ID): Promise<NarrativeNode | null>;
    getNeighbors(nodeId: ID): Promise<{
        node: NarrativeNode;
        edge: NarrativeEdge;
    }[]>;
    findPath(fromId: ID, toId: ID): Promise<ID[] | null>;
    /**
     * Rebuild the full narrative graph for a project.
     * Drops all existing project nodes and edges then re-derives them from:
     *   - characters (scenes they appear in)  → appears_in edges
     *   - narrative promises                  → introduced_in edges
     *   - canon items                         → applies_to edges (by subject matching character labels)
     *
     * Idempotent: running twice produces identical node+edge count.
     */
    rebuild(projectId: ID): Promise<{
        nodeCount: number;
        edgeCount: number;
    }>;
}
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