using DevExpress.XtraRichEdit;
using DevExpress.XtraRichEdit.API.Native;
using System.Text;

string GenerateDocumentStatisticsText(Stream inputStream, bool includeHeaderFooter, bool includeTextBoxes, bool includeFootnotesEndnotes) {
    var output = new StringBuilder();
    using var wordProcessor = new RichEditDocumentServer();
    wordProcessor.LoadDocument(inputStream);

    var document = wordProcessor.Document;

    // Basic document statistics
    output.AppendLine("BASIC DOCUMENT STATISTICS:");
    output.AppendLine(new string('-', 35));

    var pageCount = wordProcessor.DocumentLayout.GetPageCount();
    var sectionCount = document.Sections.Count;
    var paragraphCount = 0;
    var totalWords = 0;
    var totalChars = 0;
    var totalCharsNoSpaces = 0;
    var totalTables = 0;
    var totalImages = 0;
    var totalHyperlinks = 0;
    var totalBookmarks = 0;

    // Count paragraphs, words, characters, tables, images, hyperlinks, bookmarks
    wordProcessor.Document.ForEachSubDocument(subDoc => {
        var docType = subDoc.GetSubDocumentType();
        if((docType == SubDocumentType.Main) ||
        (includeHeaderFooter && (docType == SubDocumentType.Header || docType == SubDocumentType.Footer)) ||
        (includeFootnotesEndnotes && (docType == SubDocumentType.FootNote || docType == SubDocumentType.EndNote)) ||
        (includeTextBoxes && (docType == SubDocumentType.TextBox))) {
            paragraphCount += subDoc.Paragraphs.Count;
            string docText = subDoc.GetText(subDoc.Range);
            totalWords += CountWords(docText);
            totalChars += docText.Length;
            totalCharsNoSpaces += docText.Replace(" ", "").Replace("\r", "").Replace("\n", "").Replace("\t", "").Length;
            totalTables += subDoc.Tables.Count;
            totalImages += subDoc.Shapes.Count;
            totalHyperlinks += subDoc.Hyperlinks.Count;
            totalBookmarks += subDoc.Bookmarks.Count;
        }
    });

    output.AppendLine($"Pages: {pageCount}");
    output.AppendLine($"Sections: {sectionCount}");
    output.AppendLine($"Paragraphs: {paragraphCount}");
    output.AppendLine();

    // Text statistics
    output.AppendLine("TEXT CONTENT ANALYSIS:");
    output.AppendLine(new string('-', 35));

    output.AppendLine($"Words: {totalWords:N0}");
    output.AppendLine($"Characters (with spaces): {totalChars:N0}");
    output.AppendLine($"Characters (no spaces): {totalCharsNoSpaces:N0}");
    output.AppendLine();

    // Document elements count
    output.AppendLine("DOCUMENT ELEMENTS:");
    output.AppendLine(new string('-', 35));
    output.AppendLine($"Tables: {totalTables:N0}");
    output.AppendLine($"Images/Shapes: {totalImages:N0}");
    output.AppendLine($"Hyperlinks: {totalHyperlinks:N0}");
    output.AppendLine($"Bookmarks: {totalBookmarks:N0}");
    output.AppendLine($"Comments: {document.Comments.Count:N0}");
    output.AppendLine($"Footnotes: {document.Footnotes.Count:N0}");
    output.AppendLine($"Endnotes: {document.Endnotes.Count:N0}");
    output.AppendLine();

    return output.ToString();
}
int CountWords(string text) {
    if(string.IsNullOrWhiteSpace(text))
        return 0;

    return text.Split(new char[] { ' ', '\r', '\n', '\t' }, StringSplitOptions.RemoveEmptyEntries).Length;
}