import Database from 'better-sqlite3';
import { NeuromcpConfig } from '../config.js';
import { Logger } from '../observability/logger.js';
import { Metrics } from '../observability/metrics.js';
import { Entity, Relation, GraphQueryResult } from '../types.js';

interface CreateEntityInput {
    readonly name: string;
    readonly entity_type?: string;
    readonly namespace?: string;
    readonly metadata?: Record<string, unknown>;
}
declare function createEntity(input: CreateEntityInput, db: Database.Database, config: NeuromcpConfig, logger: Logger, metrics: Metrics): Entity;
interface CreateRelationInput {
    readonly source_entity_id: string;
    readonly target_entity_id: string;
    readonly relation_type: string;
    readonly namespace?: string;
    readonly weight?: number;
    readonly metadata?: Record<string, unknown>;
    readonly valid_from?: string;
    readonly valid_to?: string;
}
declare function createRelation(input: CreateRelationInput, db: Database.Database, config: NeuromcpConfig, logger: Logger, metrics: Metrics): Relation;
interface QueryGraphInput {
    readonly entity_id?: string;
    readonly entity_name?: string;
    readonly namespace?: string;
    readonly max_depth?: number;
    readonly relation_types?: readonly string[];
    readonly valid_at?: string;
    readonly limit?: number;
}
declare function queryGraph(input: QueryGraphInput, db: Database.Database, config: NeuromcpConfig, logger: Logger, metrics: Metrics): GraphQueryResult;

export { type CreateEntityInput, type CreateRelationInput, type QueryGraphInput, createEntity, createRelation, queryGraph };