using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using DocumentFormat.OpenXml;
using DocumentFormat.OpenXml.Drawing;
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Wordprocessing;
using A = DocumentFormat.OpenXml.Drawing;
using DW = DocumentFormat.OpenXml.Drawing.Wordprocessing;
using PIC = DocumentFormat.OpenXml.Drawing.Pictures;
using Paragraph = DocumentFormat.OpenXml.Wordprocessing.Paragraph;
using Text = DocumentFormat.OpenXml.Wordprocessing.Text;
using Run = DocumentFormat.OpenXml.Wordprocessing.Run;
using WinFormsLibrary.SupportClasses;

namespace WinFormsLibrary
{
    public partial class DocumentWithImage : Component
    {
        private WordprocessingDocument? _wordDocument;

        private Body? _docBody;

        public DocumentWithImage()
        {
            InitializeComponent();
        }

        public DocumentWithImage(IContainer container)
        {
            container.Add(this);

            InitializeComponent();
        }

        public void CreateDocument(ImageClass imageClass)
        {
            if (string.IsNullOrEmpty(imageClass.Path) || string.IsNullOrEmpty(imageClass.Title) || imageClass.Files.Count == 0)
            {
                throw new Exception("Не все данные заполнены");
            }

            // Создаем Word-документ
            using (WordprocessingDocument wordDocument = WordprocessingDocument.Create(imageClass.Path, WordprocessingDocumentType.Document))
            {
                MainDocumentPart mainPart = wordDocument.AddMainDocumentPart();
                mainPart.Document = new Document();
                Body body = new Body();

                // Добавляем заголовок
                Paragraph titleParagraph = new Paragraph(new Run(new Text(imageClass.Title)));
                body.Append(titleParagraph);

                // Добавляем изображения
                mainPart.Document.Append(body);

                foreach (byte[] imageData in imageClass.Files)
                {
                    ImagePart imagePart = mainPart.AddImagePart(ImagePartType.Jpeg);
                    using (MemoryStream stream = new MemoryStream(imageData))
                    {
                        imagePart.FeedData(stream);
                    }

                    AddImageToBody(wordDocument, mainPart.GetIdOfPart(imagePart));
                }

                Console.WriteLine($"Word-документ успешно создан в файле '{imageClass.Path}'.");
            }
        }

        private void AddImageToBody(WordprocessingDocument wordDoc, string relationshipId)
        {
            var element = new Drawing(
                new DW.Inline(
                    new DW.Extent() { Cx = 1990000L, Cy = 1792000L },
                    new DW.EffectExtent()
                    {
                        LeftEdge = 0L,
                        TopEdge = 0L,
                        RightEdge = 0L,
                        BottomEdge = 0L
                    },
                    new DW.DocProperties()
                    {
                        Id = (UInt32Value)1U,
                        Name = "Picture 1"
                    },
                    new DW.NonVisualGraphicFrameDrawingProperties(
                        new A.GraphicFrameLocks() { NoChangeAspect = true }),
                    new A.Graphic(
                        new A.GraphicData(
                            new PIC.Picture(
                                new PIC.NonVisualPictureProperties(
                                    new PIC.NonVisualDrawingProperties()
                                    {
                                        Id = (UInt32Value)0U,
                                        Name = "New Bitmap Image.jpg"
                                    },
                                    new PIC.NonVisualPictureDrawingProperties()),
                                new PIC.BlipFill(
                                    new A.Blip(
                                        new A.BlipExtensionList(
                                            new A.BlipExtension()
                                            {
                                                Uri =
                                                  "{28A0092B-C50C-407E-A947-70E740481C1C}"
                                            })
                                    )
                                    {
                                        Embed = relationshipId,
                                        CompressionState =
                                        A.BlipCompressionValues.Print
                                    },
                                    new A.Stretch(
                                        new A.FillRectangle())),
                                new PIC.ShapeProperties(
                                    new A.Transform2D(
                                        new A.Offset() { X = 0L, Y = 0L },
                                        new A.Extents() { Cx = 990000L, Cy = 792000L }),
                                    new A.PresetGeometry(
                                        new A.AdjustValueList()
                                    )
                                    { Preset = A.ShapeTypeValues.Rectangle }))
                        )
                        { Uri = "http://schemas.openxmlformats.org/drawingml/2006/picture" })
                )
                {
                    DistanceFromTop = (UInt32Value)0U,
                    DistanceFromBottom = (UInt32Value)0U,
                    DistanceFromLeft = (UInt32Value)0U,
                    DistanceFromRight = (UInt32Value)0U,
                    EditId = "50D07946"
                });

            // Append the reference to the body. The element should be in 
            // a DocumentFormat.OpenXml.Wordprocessing.Run.
            wordDoc.MainDocumentPart.Document.Body.AppendChild(new Paragraph(new Run(element)));
        }
    }
}