import type { FilterValue, TreeNodeData } from "element-plus";
/** 树组件运行时节点公开使用的最小结构。 */
export interface TreeNode {
    key?: string | number | null;
    label: string;
    level: number;
    parent: TreeNode | null;
    expanded: boolean;
    isLeaf?: boolean;
    expand: () => void;
    collapse: () => void;
}
/** 树组件的数据集合。 */
export type TreeData = TreeNodeData[];
/** 树节点的唯一键类型 */
export type TreeKey = string | number;
/** 树节点的懒加载方法。 */
export type LoadFunction = (rootNode: TreeNode, loadedCallback: (data: TreeData) => void, stopLoading: () => void) => void;
/** 树节点字段映射配置 */
export interface TreeOptionProps {
    children?: string;
    label?: string | ((data: TreeNodeData, node: TreeNode) => string);
    disabled?: string | ((data: TreeNodeData, node: TreeNode) => boolean);
    isLeaf?: string | ((data: TreeNodeData, node: TreeNode) => boolean);
    class?: (data: TreeNodeData, node: TreeNode) => string | Record<string, boolean>;
}
/** 树节点筛选方法。 */
export type FilterNodeMethodFunction = (value: FilterValue, data: TreeNodeData, child: TreeNode) => boolean;
/** 树节点拖放位置。 */
export type NodeDropType = "before" | "after" | "inner";