import { Node as FlowNode, Edge as FlowEdge, NodeChange, EdgeChange } from '@xyflow/react';
import { FlatLink, FlatNode } from './types.js';
import { OntologyFlowNodeData } from './OntologyNode.js';
import { OntologyFlowEdgeData } from './OntologyEdge.js';
/**
 * Mutation callbacks the parent renderer injects. In read-only mode the
 * parent passes no-ops; in editable mode each callback re-derives the
 * next-ontology and writes it back through `binding.write` via
 * `useBindingOntology`'s `mutate`.
 */
export interface OntologyMutations {
    deleteNodes(ids: Set<string>): void;
    deleteLinks(ids: Set<string>): void;
}
export interface UseFlowStateArgs {
    flatNodes: FlatNode[];
    flatLinks: FlatLink[];
    mutations: OntologyMutations;
}
export declare function useFlowState({ flatNodes, flatLinks, mutations }: UseFlowStateArgs): {
    nodes: FlowNode<OntologyFlowNodeData>[];
    edges: FlowEdge<OntologyFlowEdgeData>[];
    onNodesChange: (changes: NodeChange[]) => void;
    onEdgesChange: (changes: EdgeChange[]) => void;
    screenToFlowPosition: (clientPosition: import('@xyflow/react').XYPosition, options?: {
        snapToGrid?: boolean;
        snapGrid?: import('@xyflow/react').SnapGrid;
    }) => import('@xyflow/react').XYPosition;
    setNodePosition: (id: string, pos: {
        x: number;
        y: number;
    }) => void;
};
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