import type { Cell, Op, Selection } from '@fortune-sheet/core';
import type { WorkSpreadsheetContent, WorkSpreadsheetDateSystem } from '../work-types';
import type { OfficeSelectOption } from './office-select';
export interface SpreadsheetSelectionSummary {
    average: number | null;
    nonEmptyCount: number;
    numericCount: number;
    sum: number | null;
}
export declare function spreadsheetSelectionReference(selection: Pick<Selection, 'row' | 'column'>): string;
export declare function spreadsheetSingleRange(selection: Pick<Selection, 'row' | 'column'>): {
    row: number[];
    column: number[];
};
export declare function spreadsheetCellAt(sheet: WorkSpreadsheetContent['sheets'][number] | undefined, row: number | undefined, column: number | undefined): Cell | null;
export declare function spreadsheetSelectionSummary(sheet: WorkSpreadsheetContent['sheets'][number] | undefined, selection: Pick<Selection, 'row' | 'column'>): SpreadsheetSelectionSummary;
export declare function spreadsheetFontSizeOptions(current: number | undefined): {
    value: string;
    label: string;
}[];
export declare function spreadsheetFontFamilyOptions(current: string | undefined): OfficeSelectOption[];
export declare function spreadsheetSheetsWithFiniteSelections(sheets: WorkSpreadsheetContent['sheets']): WorkSpreadsheetContent['sheets'];
export declare function spreadsheetSheetsForFortune(sheets: WorkSpreadsheetContent['sheets'], namedRanges?: WorkSpreadsheetContent['namedRanges']): WorkSpreadsheetContent['sheets'];
export declare function spreadsheetSheetsFromFortune(sheets: WorkSpreadsheetContent['sheets'], sourceSheets: WorkSpreadsheetContent['sheets'], operations?: readonly Op[], dateSystem?: WorkSpreadsheetDateSystem): WorkSpreadsheetContent['sheets'];
export declare function finiteSpreadsheetSelection(selection: Selection | undefined): Selection;
export declare function sameSpreadsheetWorkbookState(changed: WorkSpreadsheetContent['sheets'], rendered: WorkSpreadsheetContent['sheets']): boolean;
/**
 * Answers the workbook equality check from Fortune's exact operation batch
 * without walking unrelated matrix cells. A null result requires the legacy
 * full comparison because the batch is missing or too broad to prove safely.
 */
export declare function sameSpreadsheetWorkbookStateAfterOperations(changed: WorkSpreadsheetContent['sheets'], rendered: WorkSpreadsheetContent['sheets'], operations: readonly Op[]): boolean | null;
export declare function sameSpreadsheetHistoryContent(left: WorkSpreadsheetContent, right: WorkSpreadsheetContent): boolean;
export declare function spreadsheetContentWithSelection(content: WorkSpreadsheetContent, sheetId: string, selection: Selection | null | undefined): WorkSpreadsheetContent;
export declare function spreadsheetContentWithSelections(content: WorkSpreadsheetContent, sheetId: string, selections: readonly Selection[]): WorkSpreadsheetContent;
export declare function isSpreadsheetNativeTextUndoTarget(target: EventTarget | null): boolean;
export declare function isSpreadsheetCellEditingTarget(target: EventTarget | null): boolean;
export declare function isSpreadsheetCellEditorTarget(target: EventTarget | null): boolean;
export declare function spreadsheetFormulaBarSelectAllTarget(event: KeyboardEvent): HTMLElement | null;
export declare function selectSpreadsheetFormulaBarContents(event: KeyboardEvent): boolean;