import { default as React } from 'react';
import { BuiltInFieldDefinition } from './built-in-fields';
import { DatasourcePlugin, CustomParameterPlugin, ReportBuilderState, ReportTemplate, AvailableSubReport } from './report-builder-types';
import { ReportBuilderStore } from './report-builder-store';
export interface ReportBuilderContextValue {
    store: ReportBuilderStore;
    datasourcePlugins: DatasourcePlugin[];
    parameterPlugins: CustomParameterPlugin[];
    availableSubReports: AvailableSubReport[];
    /** Fully merged list of built-in fields (library registry + per-instance overrides). */
    builtInFields: BuiltInFieldDefinition[];
    templates: ReportTemplate[];
    onSaveTemplate?: (template: ReportTemplate) => void;
    onDeleteTemplate?: (templateId: string) => void;
    onLoadTemplate?: (template: ReportTemplate) => void;
}
export declare const ReportBuilderContext: React.Context<ReportBuilderContextValue | null>;
export declare function useReportBuilderContext(): ReportBuilderContextValue;
/**
 * Subscribe to the report-builder store with an optional selector.
 *
 * Pass `shallow = true` as the second argument when the selector returns a freshly-built
 * array or object derived from state — e.g. `s.definition.variables ?? []` or
 * `Object.values(s.datasources)`. Without shallow comparison a new reference would fire a
 * re-render on every store change even when the underlying values are unchanged; with it,
 * the hook compares element-by-element and only re-renders on real differences.
 *
 * Reference-stable selectors (`s.definition.components`, `s.selectedItemId`) don't need it.
 */
export declare function useRBStore(): ReportBuilderState;
export declare function useRBStore<R>(selector: (s: ReportBuilderState) => R, shallow?: boolean): R;