import { Ref, ComputedRef } from 'vue';
import { TreeNode, SummaryData, SelectOption } from '../types';
export interface UseExperimentDataOptions {
    apiBaseUrl?: string;
    immediate?: boolean;
}
export interface UseExperimentDataReturn {
    /** Raw experiment data response from `/experiments/{id}/data`, or null. */
    data: Ref<Record<string, unknown> | null>;
    /** Plugin-defined design_data payload unwrapped from platform response shapes, or null. */
    designData: ComputedRef<Record<string, unknown> | null>;
    /** Sample values extracted from design_data for SampleSelector-style components. */
    sampleNames: ComputedRef<string[]>;
    /** Sample options extracted from design_data for select/dropdown components. */
    sampleOptions: ComputedRef<SelectOption<string>[]>;
    /** Hierarchy tree rows normalised from `tree_data` or `treeData`. */
    treeData: ComputedRef<TreeNode[]>;
    /** Table rows normalised from `table_data` or `tableData`. */
    tableData: ComputedRef<Record<string, unknown>[]>;
    /** Summary payload normalised from `summary_data` or `summaryData`, or null. */
    summaryData: ComputedRef<SummaryData | null>;
    /** Whether experiment data is currently loading. */
    isLoading: Ref<boolean>;
    /** Error message from the last failed fetch, or null. */
    error: Ref<string | null>;
    /** Timestamp of the last successful experiment data fetch, or null. */
    lastLoadedAt: Ref<Date | null>;
    /** Fetch experiment data for an experiment id. */
    fetch: (experimentId: number) => Promise<Record<string, unknown> | null>;
    /** Refetch the most recently fetched experiment id. */
    refresh: () => Promise<void>;
    /** Clear local experiment data and current fetch target. */
    clear: () => void;
}
/** Fetches and normalises experiment output data (tree, table, summary) from the platform API. */
export declare function useExperimentData(options?: UseExperimentDataOptions): UseExperimentDataReturn;