import * as _flowgram_ai_core from '@flowgram.ai/core';
import { WorkflowNodeEntity } from '@flowgram.ai/free-layout-core';

/**
 * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates
 * SPDX-License-Identifier: MIT
 */

interface StackingContext {
    hoveredEntityID?: string;
    selectedNodes: WorkflowNodeEntity[];
    selectedIDs: Set<string>;
    sortNodes: (nodes: WorkflowNodeEntity[]) => WorkflowNodeEntity[];
}
interface StackContextManagerOptions {
    sortNodes: (nodes: WorkflowNodeEntity[]) => WorkflowNodeEntity[];
}
type FreeStackPluginOptions = Partial<StackContextManagerOptions>;

/**
 * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates
 * SPDX-License-Identifier: MIT
 */
declare const createFreeStackPlugin: _flowgram_ai_core.PluginCreator<Partial<StackContextManagerOptions>>;

/**
 * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates
 * SPDX-License-Identifier: MIT
 */

declare class StackingContextManager {
    private readonly document;
    private readonly entityManager;
    private readonly pipelineRenderer;
    private readonly pipelineRegistry;
    private readonly hoverService;
    private readonly selectService;
    readonly node: HTMLDivElement;
    private options;
    private disposers;
    constructor();
    init(options?: Partial<StackContextManagerOptions>): void;
    ready(): void;
    dispose(): void;
    /**
     * 触发计算
     * 10ms内仅计算一次
     */
    private compute;
    private _compute;
    private get nodes();
    private get lines();
    private get context();
    private mountListener;
    private onZoom;
    private onHover;
    private onEntityChange;
    private onSelect;
}

/**
 * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates
 * SPDX-License-Identifier: MIT
 */
declare const BASE_Z_INDEX = 8;

/**
 * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates
 * SPDX-License-Identifier: MIT
 */

declare class StackingComputing {
    private currentLevel;
    private topLevel;
    private maxLevel;
    private nodeIndexes;
    private nodeLevel;
    private lineLevel;
    private selectedNodeParentSet;
    private context;
    compute(params: {
        root: WorkflowNodeEntity;
        nodes: WorkflowNodeEntity[];
        context: StackingContext;
    }): {
        /** 节点层级 */
        nodeLevel: Map<string, number>;
        /** 线条层级 */
        lineLevel: Map<string, number>;
        /** 正常渲染的最高层级 */
        topLevel: number;
        /** 选中计算叠加后可能计算出的最高层级 */
        maxLevel: number;
    };
    private clearCache;
    private computeNodeIndexesMap;
    private computeSelectedNodeParentSet;
    private getNodeParents;
    private computeTopLevel;
    private layerHandler;
    private sortNodes;
    private getNodesAllLines;
    private isHigherFirstLine;
    private getLevel;
    private levelIncrease;
}

export { BASE_Z_INDEX, type FreeStackPluginOptions, type StackContextManagerOptions, StackingComputing, type StackingContext, StackingContextManager, createFreeStackPlugin };