Cell and Range Operations

/**
 * Convert cell address object to A1 notation string
 * @param cell - Cell address with row and column numbers
 * @returns A1 notation string (e.g., "A1", "B5", "AA100")
 */
function encode_cell(cell: CellAddress): string;

/**
 * Convert row number to A1 notation
 * @param row - Row number (0-indexed)
 * @returns Row string (e.g., "1", "5", "100")
 */
function encode_row(row: number): string;

/**
 * Convert column number to A1 notation
 * @param col - Column number (0-indexed)
 * @returns Column string (e.g., "A", "B", "AA")
 */
function encode_col(col: number): string;

/**
 * Convert range object to A1 notation string
 * @param range - Range object with start and end addresses
 * @returns A1 range string (e.g., "A1:C5", "B2:D10")
 */
function encode_range(range: Range): string;

/**
 * Convert range coordinates to A1 notation string
 * @param s - Start cell address
 * @param e - End cell address  
 * @returns A1 range string
 */
function encode_range(s: CellAddress, e: CellAddress): string;

import { utils } from "xlsx";

// Encode cell addresses
const cellA1 = utils.encode_cell({ r: 0, c: 0 });        // "A1"
const cellB5 = utils.encode_cell({ r: 4, c: 1 });        // "B5"
const cellAA100 = utils.encode_cell({ r: 99, c: 26 });   // "AA100"

// Encode rows and columns separately
const row10 = utils.encode_row(9);    // "10" (0-indexed input)
const colZ = utils.encode_col(25);    // "Z" (0-indexed input)

// Encode ranges
const range1 = utils.encode_range(
  { r: 0, c: 0 },     // A1
  { r: 4, c: 2 }      // C5
);  // "A1:C5"

const rangeObj = {
  s: { r: 1, c: 1 },  // B2
  e: { r: 9, c: 3 }   // D10
};
const range2 = utils.encode_range(rangeObj);  // "B2:D10"

// Dynamic range creation
function createDynamicRange(startRow: number, startCol: number, numRows: number, numCols: number) {
  return utils.encode_range(
    { r: startRow, c: startCol },
    { r: startRow + numRows - 1, c: startCol + numCols - 1 }
  );
}
const dynamicRange = createDynamicRange(0, 0, 10, 5);  // "A1:E10"

/**
 * Convert A1 notation string to cell address object
 * @param address - A1 notation string (e.g., "A1", "B5", "AA100")
 * @returns CellAddress object with row and column numbers
 */
function decode_cell(address: string): CellAddress;

/**
 * Convert A1 row string to number
 * @param row - Row string (e.g., "1", "5", "100")
 * @returns Row number (0-indexed)
 */
function decode_row(row: string): number;

/**
 * Convert A1 column string to number
 * @param col - Column string (e.g., "A", "B", "AA")
 * @returns Column number (0-indexed)
 */
function decode_col(col: string): number;

/**
 * Convert A1 range string to range object
 * @param range - A1 range string (e.g., "A1:C5", "B2:D10")
 * @returns Range object with start and end addresses
 */
function decode_range(range: string): Range;

import { utils } from "xlsx";

// Decode cell addresses
const addr1 = utils.decode_cell("A1");        // { r: 0, c: 0 }
const addr2 = utils.decode_cell("B5");        // { r: 4, c: 1 }
const addr3 = utils.decode_cell("AA100");     // { r: 99, c: 26 }

// Decode rows and columns
const rowNum = utils.decode_row("10");        // 9 (0-indexed output)
const colNum = utils.decode_col("Z");         // 25 (0-indexed output)

// Decode ranges
const range1 = utils.decode_range("A1:C5");
// { s: { r: 0, c: 0 }, e: { r: 4, c: 2 } }

const range2 = utils.decode_range("B2:D10");
// { s: { r: 1, c: 1 }, e: { r: 9, c: 3 } }

// Use decoded addresses for cell access
const workbook = utils.book_new();
const worksheet = utils.aoa_to_sheet([["A", "B", "C"], [1, 2, 3]]);

const cellAddr = utils.decode_cell("B2");
const cellValue = worksheet[utils.encode_cell(cellAddr)];
console.log(cellValue?.v);  // 2

// Range iteration
const range = utils.decode_range("A1:C2");
for (let r = range.s.r; r <= range.e.r; r++) {
  for (let c = range.s.c; c <= range.e.c; c++) {
    const cellRef = utils.encode_cell({ r, c });
    const cell = worksheet[cellRef];
    console.log(`${cellRef}: ${cell?.v}`);
  }
}

/**
 * Format cell value for display
 * @param cell - Cell object to format
 * @param v - Optional value override
 * @param opts - Formatting options
 * @returns Formatted string representation
 */
function format_cell(cell: CellObject, v?: any, opts?: any): string;

/**
 * Set number format for a cell
 * @param cell - Cell object to modify
 * @param fmt - Number format string or format index
 * @returns Modified cell object
 */
function cell_set_number_format(cell: CellObject, fmt: string | number): CellObject;

import { utils } from "xlsx";

// Create sample cells
const numberCell: CellObject = { v: 1234.567, t: "n" };
const dateCell: CellObject = { v: new Date("2023-06-15"), t: "d" };
const percentCell: CellObject = { v: 0.1234, t: "n" };

// Basic formatting
const formatted1 = utils.format_cell(numberCell);
console.log(formatted1);  // "1234.567"

// Set number formats
const currencyCell = utils.cell_set_number_format(numberCell, "$#,##0.00");
const formattedCurrency = utils.format_cell(currencyCell);
console.log(formattedCurrency);  // "$1,234.57"

const percentFormatted = utils.cell_set_number_format(percentCell, "0.00%");
const formattedPercent = utils.format_cell(percentFormatted);
console.log(formattedPercent);  // "12.34%"

const dateFormatted = utils.cell_set_number_format(dateCell, "mm/dd/yyyy");
const formattedDate = utils.format_cell(dateFormatted);
console.log(formattedDate);  // "06/15/2023"

// Custom formatting with built-in format codes
const scientificCell = utils.cell_set_number_format(numberCell, "0.00E+00");
const timeCell = utils.cell_set_number_format(dateCell, "hh:mm:ss");
const fractionCell = utils.cell_set_number_format(numberCell, "# ?/?");

/**
 * Set external hyperlink for a cell
 * @param cell - Cell object to modify
 * @param target - URL or external reference
 * @param tooltip - Optional tooltip text
 * @returns Modified cell object with hyperlink
 */
function cell_set_hyperlink(cell: CellObject, target: string, tooltip?: string): CellObject;

/**
 * Set internal workbook link for a cell
 * @param cell - Cell object to modify
 * @param target - Internal reference (sheet name, cell address)
 * @param tooltip - Optional tooltip text
 * @returns Modified cell object with internal link
 */
function cell_set_internal_link(cell: CellObject, target: string, tooltip?: string): CellObject;

import { utils } from "xlsx";

// Create cells with text
const urlCell: CellObject = { v: "Visit Google", t: "s" };
const emailCell: CellObject = { v: "Contact Us", t: "s" };
const internalCell: CellObject = { v: "Go to Summary", t: "s" };

// Add external hyperlinks
const webLink = utils.cell_set_hyperlink(urlCell, "https://www.google.com", "Google Search");
const mailLink = utils.cell_set_hyperlink(emailCell, "mailto:support@example.com", "Send Email");

// Add internal links
const sheetLink = utils.cell_set_internal_link(internalCell, "Summary!A1", "Go to Summary Sheet");
const rangeLink = utils.cell_set_internal_link(internalCell, "Data!A1:C10", "View Data Range");

// Apply to worksheet
const worksheet = utils.aoa_to_sheet([
  ["Links Example"],
  ["Visit Google", "Contact Us", "Go to Summary"]
]);

// Set hyperlinks on specific cells
worksheet["A2"] = webLink;
worksheet["B2"] = mailLink;
worksheet["C2"] = sheetLink;

// Create workbook with linked worksheet
const workbook = utils.book_new();
utils.book_append_sheet(workbook, worksheet, "Links");

// Add summary sheet for internal link
const summarySheet = utils.aoa_to_sheet([["Summary Data"], ["Item 1"], ["Item 2"]]);
utils.book_append_sheet(workbook, summarySheet, "Summary");

/**
 * Add comment to a cell
 * @param cell - Cell object to modify
 * @param text - Comment text content
 * @param author - Optional author name
 */
function cell_add_comment(cell: CellObject, text: string, author?: string): void;

import { utils } from "xlsx";

// Create cells with data
const dataCell: CellObject = { v: 1000, t: "n" };
const formulaCell: CellObject = { v: 2000, t: "n", f: "SUM(A1:A10)" };

// Add comments
utils.cell_add_comment(dataCell, "This value was manually entered on 2023-06-15", "Alice");
utils.cell_add_comment(formulaCell, "Formula calculates total revenue\nLast updated: Q2 2023", "Bob");

// Create worksheet with commented cells
const worksheet = utils.aoa_to_sheet([
  ["Revenue Data"],
  ["Q1 Revenue", 1000],
  ["Q2 Revenue", 2000]
]);

// Apply commented cells
worksheet["B2"] = dataCell;
worksheet["B3"] = formulaCell;

// Comments are preserved in Excel output
const workbook = utils.book_new();
utils.book_append_sheet(workbook, worksheet, "Revenue");

// Comments will be visible when opening in Excel/Sheets

import { utils, readFile } from "xlsx";

// Load existing workbook
const workbook = readFile("data.xlsx");
const worksheet = workbook.Sheets[workbook.SheetNames[0]];

// Get worksheet range
const wsRange = worksheet["!ref"];
console.log(`Worksheet range: ${wsRange}`);  // e.g., "A1:E10"

if (wsRange) {
  const range = utils.decode_range(wsRange);
  
  // Iterate through all cells in range
  for (let r = range.s.r; r <= range.e.r; r++) {
    for (let c = range.s.c; c <= range.e.c; c++) {
      const cellAddress = utils.encode_cell({ r, c });
      const cell = worksheet[cellAddress];
      
      if (cell) {
        // Process cell
        console.log(`${cellAddress}: ${cell.v} (type: ${cell.t})`);
        
        // Apply formatting based on cell type
        if (cell.t === "n" && cell.v > 1000) {
          utils.cell_set_number_format(cell, "$#,##0.00");
        } else if (cell.t === "d") {
          utils.cell_set_number_format(cell, "mm/dd/yyyy");
        }
      }
    }
  }
}

// Find specific cells
function findCellsWithValue(worksheet: any, searchValue: any) {
  const results: string[] = [];
  const range = worksheet["!ref"];
  
  if (range) {
    const decodedRange = utils.decode_range(range);
    for (let r = decodedRange.s.r; r <= decodedRange.e.r; r++) {
      for (let c = decodedRange.s.c; c <= decodedRange.e.c; c++) {
        const cellAddress = utils.encode_cell({ r, c });
        const cell = worksheet[cellAddress];
        if (cell && cell.v === searchValue) {
          results.push(cellAddress);
        }
      }
    }
  }
  
  return results;
}

// Usage
const matchingCells = findCellsWithValue(worksheet, "Total");
console.log(`Found "Total" in cells: ${matchingCells.join(", ")}`);

import { utils } from "xlsx";

// Create range utilities
function getCellsInRange(worksheet: any, rangeStr: string) {
  const range = utils.decode_range(rangeStr);
  const cells: any[] = [];
  
  for (let r = range.s.r; r <= range.e.r; r++) {
    for (let c = range.s.c; c <= range.e.c; c++) {
      const cellAddress = utils.encode_cell({ r, c });
      const cell = worksheet[cellAddress];
      if (cell) {
        cells.push({ address: cellAddress, ...cell });
      }
    }
  }
  
  return cells;
}

function sumRange(worksheet: any, rangeStr: string): number {
  const cells = getCellsInRange(worksheet, rangeStr);
  return cells
    .filter(cell => cell.t === "n")
    .reduce((sum, cell) => sum + (cell.v || 0), 0);
}

// Usage with actual worksheet
const workbook = utils.book_new();
const data = [
  ["Product", "Q1", "Q2", "Q3", "Q4"],
  ["Widget", 100, 150, 200, 175],
  ["Gadget", 80, 120, 160, 140],
  ["Tool", 60, 90, 110, 100]
];
const worksheet = utils.aoa_to_sheet(data);

// Calculate totals for ranges
const q1Total = sumRange(worksheet, "B2:B4");  // Sum Q1 column
const widgetTotal = sumRange(worksheet, "B2:E2");  // Sum Widget row

console.log(`Q1 Total: ${q1Total}`);      // 240
console.log(`Widget Total: ${widgetTotal}`); // 625