using OfficeOpenXml;
using System;
using System.IO;

// Quick utility to inspect Excel file structure
ExcelPackage.LicenseContext = LicenseContext.NonCommercial;

var file = @"Y:\PCC\Quickbooks\Online\Customers.xls";
Console.WriteLine($"Inspecting: {file}\n");

try
{
    using var package = new ExcelPackage(new FileInfo(file));
    var worksheet = package.Workbook.Worksheets[0];

    Console.WriteLine($"Worksheet: {worksheet.Name}");
    Console.WriteLine($"Rows: {worksheet.Dimension.Rows}");
    Console.WriteLine($"Columns: {worksheet.Dimension.Columns}\n");

    Console.WriteLine("Column Headers (Row 1):");
    for (int col = 1; col <= worksheet.Dimension.Columns; col++)
    {
        var header = worksheet.Cells[1, col].Value?.ToString() ?? "";
        Console.WriteLine($"  [{col}] {header}");
    }

    Console.WriteLine("\nSample Data (Row 2):");
    if (worksheet.Dimension.Rows >= 2)
    {
        for (int col = 1; col <= worksheet.Dimension.Columns; col++)
        {
            var value = worksheet.Cells[2, col].Value?.ToString() ?? "";
            var truncated = value.Length > 50 ? value.Substring(0, 50) + "..." : value;
            Console.WriteLine($"  [{col}] {truncated}");
        }
    }
}
catch (Exception ex)
{
    Console.WriteLine($"Error: {ex.Message}");
}