using Excel = Microsoft.Office.Interop.Excel;
using System.ComponentModel;


namespace PutincevLibrary
{
    public partial class ComponentExcelWithImage : Component
    {
        public ComponentExcelWithImage()
        {
            InitializeComponent();
        }

        public ComponentExcelWithImage(IContainer container) : this()
        {
            container.Add(this);
        }

        private void CheckInputValues(string filePath, string tableTitle, string[] imagePaths)
        {
            if (string.IsNullOrEmpty(filePath))
            {
                throw new ArgumentNullException(nameof(filePath));
            }
            if (string.IsNullOrEmpty(tableTitle))
            {
                throw new ArgumentNullException(nameof(tableTitle));
            }
            if (imagePaths == null)
            {
                throw new ArgumentNullException(nameof(imagePaths));
            }
            foreach (string imagePath in imagePaths)
            {
                if (string.IsNullOrEmpty(imagePath))
                {
                    throw new ArgumentNullException("Image path is null");
                }
            }
        }

        public void CreateExcelWithImages(string filePath, string tableTitle, string[] imagePaths)
        {
            CheckInputValues(filePath, tableTitle, imagePaths);

            Excel.Application excelApp = new Excel.Application();
            Excel.Workbook workbook = excelApp.Workbooks.Add();
            Excel.Worksheet worksheet = workbook.Sheets[1];

            worksheet.Cells[1, 1] = tableTitle;

            InsertImagesInSingleCell(worksheet, imagePaths, 2, 1);

            workbook.SaveAs(filePath);
            workbook.Close();
            excelApp.Quit();

            ReleaseObject(worksheet);
            ReleaseObject(workbook);
            ReleaseObject(excelApp);
        }

        private void InsertImagesInSingleCell(Excel.Worksheet worksheet, string[] imagePaths, int rowIndex, int columnIndex)
        {
            Excel.Range cell = worksheet.Cells[rowIndex, columnIndex];
            double currentTopOffset = 0;

            foreach (string imagePath in imagePaths)
            {
                if (File.Exists(imagePath))
                {
                    Excel.Pictures pictures = (Excel.Pictures)worksheet.Pictures(System.Reflection.Missing.Value);
                    Excel.Picture picture = pictures.Insert(imagePath);

                    picture.Left = cell.Left;
                    picture.Top = cell.Top + currentTopOffset;

                    currentTopOffset += picture.Height;
                }
                else
                {
                    throw new FileNotFoundException("Image not found at: " + imagePath);
                }
            }
        }

        private void ReleaseObject(object obj)
        {
            try
            {
                if (obj != null)
                {
                    System.Runtime.InteropServices.Marshal.ReleaseComObject(obj);
                    obj = null;
                }
            }
            catch (Exception ex)
            {
                obj = null;
                Console.WriteLine("Error releasing object: " + ex.ToString());
            }
            finally
            {
                GC.Collect();
            }
        }
    }
}