/**
 * Utility functions for Excel Export
 *
 * This file contains shared utility functions to avoid code duplication
 * and ensure consistent behavior across the export functionality.
 */
/**
 * Convert a 0-based column number to Excel column letter(s)
 * Examples: 0 -> 'A', 1 -> 'B', 25 -> 'Z', 26 -> 'AA', 27 -> 'AB'
 *
 * @param colNumber - 0-based column index
 * @returns Excel column letter(s)
 * @throws Error if column number is negative or exceeds Excel's maximum
 */
export declare function columnNumberToLetter(colNumber: number): string;
/**
 * Convert Excel column letter(s) to 0-based column number
 * Examples: 'A' -> 0, 'B' -> 1, 'Z' -> 25, 'AA' -> 26, 'AB' -> 27
 *
 * @param columnLetter - Excel column letter(s)
 * @returns 0-based column index
 * @throws Error if column letter is invalid
 */
export declare function columnLetterToNumber(columnLetter: string): number;
/**
 * Convert 0-based row/column indices to 1-based for Excel
 *
 * @param zeroBasedIndex - 0-based index
 * @returns 1-based index for Excel
 */
export declare function toOneBased(zeroBasedIndex: number): number;
/**
 * Convert 1-based Excel indices to 0-based
 *
 * @param oneBasedIndex - 1-based Excel index
 * @returns 0-based index
 */
export declare function toZeroBased(oneBasedIndex: number): number;
/**
 * Create an Excel cell reference from row and column indices
 *
 * @param row - 0-based row index
 * @param col - 0-based column index
 * @param absolute - Whether to use absolute references ($)
 * @returns Excel cell reference (e.g., 'A1', '$A$1')
 */
export declare function createCellReference(row: number, col: number, absolute?: {
    row?: boolean;
    col?: boolean;
}): string;
/**
 * Create an Excel range reference from start and end coordinates
 *
 * @param startRow - 0-based start row
 * @param startCol - 0-based start column
 * @param endRow - 0-based end row
 * @param endCol - 0-based end column
 * @returns Excel range reference (e.g., 'A1:C3')
 */
export declare function createRangeReference(startRow: number, startCol: number, endRow: number, endCol: number): string;
/**
 * Parse an Excel cell reference to get row and column indices
 *
 * @param cellRef - Excel cell reference (e.g., 'A1', '$B$2')
 * @returns Object with 0-based row and column indices and absolute flags
 */
export declare function parseCellReference(cellRef: string): {
    row: number;
    col: number;
    absoluteRow: boolean;
    absoluteCol: boolean;
} | null;
/**
 * Parse an Excel range reference to get start and end coordinates
 *
 * @param rangeRef - Excel range reference (e.g., 'A1:C3')
 * @returns Object with start and end coordinates (0-based)
 */
export declare function parseRangeReference(rangeRef: string): {
    startRow: number;
    startCol: number;
    endRow: number;
    endCol: number;
} | null;
/**
 * Validate if a value represents a boolean in Excel terms
 *
 * @param value - Value to check
 * @returns Boolean representation or undefined if not boolean
 */
export declare function toBooleanValue(value: any): boolean | undefined;
/**
 * Check if a row index is valid for Excel
 *
 * @param row - 0-based row index
 * @returns True if valid
 */
export declare function isValidRow(row: number): boolean;
/**
 * Check if a column index is valid for Excel
 *
 * @param col - 0-based column index
 * @returns True if valid
 */
export declare function isValidColumn(col: number): boolean;
/**
 * Check if a cell reference is valid
 *
 * @param row - 0-based row index
 * @param col - 0-based column index
 * @returns True if valid cell reference
 */
export declare function isValidCell(row: number, col: number): boolean;
/**
 * Safely get a value from a nested object structure
 *
 * @param obj - Object to get value from
 * @param path - Path to the value (e.g., 'a.b.c')
 * @param defaultValue - Default value if path doesn't exist
 * @returns Value at path or default
 */
export declare function safeGet<T = any>(obj: any, path: string, defaultValue?: T): T;
/**
 * Create a unique identifier for a range
 *
 * @param startRow - Start row (0-based)
 * @param startCol - Start column (0-based)
 * @param endRow - End row (0-based)
 * @param endCol - End column (0-based)
 * @returns Unique range identifier
 */
export declare function createRangeId(startRow: number, startCol: number, endRow: number, endCol: number): string;
/**
 * Normalize a sheet name for comparison
 *
 * @param name - Sheet name
 * @returns Normalized sheet name
 */
export declare function normalizeSheetName(name: string): string;
/**
 * Check if two ranges overlap
 *
 * @param range1 - First range
 * @param range2 - Second range
 * @returns True if ranges overlap
 */
export declare function doRangesOverlap(range1: {
    startRow: number;
    startCol: number;
    endRow: number;
    endCol: number;
}, range2: {
    startRow: number;
    startCol: number;
    endRow: number;
    endCol: number;
}): boolean;
/**
 * Deep clone an object (simple implementation for plain objects)
 *
 * @param obj - Object to clone
 * @returns Cloned object
 */
export declare function deepClone<T>(obj: T): T;