using SkiaSharp;
using System;
using System.IO;
using System.Linq;
using Telerik.Drawing;
using Telerik.Drawing.Contract;
using Telerik.Reporting;

namespace CSharp.Net9.WinFormsIntegrationDemo
{
    public class RenderSKImageInReport
    {
        public static void RenderReport()
        {
            const string imagePath = @"C:\Tickets\images\reporting.png";
            const string reportPath = "C:\\Program Files (x86)\\Progress\\Telerik Reporting 2025 Q2\\Examples\\CSharp\\.NET 9\\WinFormsIntegrationDemo\\Report1.trdx";

            using var image = GetImage(imagePath);
            SetPictureBoxImage(image, reportPath);
        }

        static SKImage GetImage(string imagePath)
        {
            if (!File.Exists(imagePath)) return null;
            using var inputStream = File.OpenRead(imagePath);
            using var skData = SKData.Create(inputStream);
            var skImage = SKImage.FromEncodedData(skData);

            return skImage;
        }

        static void SetPictureBoxImage(SKImage image, string reportPath)
        {
            if (image is null)
            {
                throw new ArgumentNullException(nameof(image), "Image cannot be null.");
            }

            var _telerikReport = GetReport(reportPath);
            var pictureBox = (PictureBox)_telerikReport.Items.Find("pictureBox1", true).FirstOrDefault();
            if (pictureBox is null) throw new NullReferenceException();

            DrawingFactory.CurrentGraphicsEngine = GraphicsEngine.Skia;
            using var bitmap = SKBitmap.FromImage(image);
            IImage tlkImage = DrawingFactory.CreateImage(bitmap);
            pictureBox.Value = tlkImage;

            RenderReport(_telerikReport);
        }

        static void RenderReport(Report telerikReport)
        {
            var reportProcessor = new Telerik.Reporting.Processing.ReportProcessor();

            var reportSource = new InstanceReportSource();

            reportSource.ReportDocument = telerikReport;

            Telerik.Reporting.Processing.RenderingResult result = reportProcessor.RenderReport("PDF", reportSource, null);

            if (!result.HasErrors)
            {
                string fileName = result.DocumentName + "." + result.Extension;
                string filePath = Path.Combine("C:\\test", fileName);

                using (FileStream fs = new FileStream(filePath, FileMode.Create))
                {
                    fs.Write(result.DocumentBytes, 0, result.DocumentBytes.Length);
                }
            }
        }

        static Report GetReport(string reportPath)
        {
            System.Xml.XmlReaderSettings settings = new System.Xml.XmlReaderSettings();
            settings.IgnoreWhitespace = true;

            using (System.Xml.XmlReader xmlReader = System.Xml.XmlReader.Create(reportPath, settings))
            {
                var xmlSerializer = new Telerik.Reporting.XmlSerialization.ReportXmlSerializer();
                var report = (Report)xmlSerializer.Deserialize(xmlReader);

                return report;
            }
        }
    }
}