using DocumentFormat.OpenXml;
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Wordprocessing;

internal class WordBuilder
{
    private readonly string _filePath;
    private readonly Document _doc;
    private readonly Body _body;
    public WordBuilder(string filepath)
    {
        if (string.IsNullOrWhiteSpace(filepath))
        {
            throw new ArgumentNullException(nameof(filepath));
        }

        if (File.Exists(filepath))
        {
            File.Delete(filepath);
        }

        _filePath = filepath;
        _doc = new Document();
        _body = _doc.AppendChild(new Body());
    }

    public WordBuilder AddHeader(string header)
    {
        var paragraph = _body.AppendChild(new Paragraph());
        var run = paragraph.AppendChild(new Run());

        // Set bold text using RunProperties
        run.AppendChild(new RunProperties(new Bold()));
        run.AppendChild(new Text(header));  // Use Wordprocessing.Text
        return this;
    }

    public WordBuilder AddTable(int[] widths, List<string[]> data)
    {
        if (widths == null || widths.Length == 0)
        {
            throw new ArgumentNullException(nameof(widths));
        }

        if (data == null || data.Count == 0)
        {
            throw new ArgumentNullException(nameof(data));
        }

        if (data.Any(x => x.Length != widths.Length))
        {
            throw new InvalidOperationException("widths.Length != data.Length");
        }

        var table = new Table();
        table.AppendChild(new TableProperties(new TableBorders(new TopBorder() { Val = new EnumValue<BorderValues>(BorderValues.Single), Size = 12 },
            new BottomBorder() { Val = new EnumValue<BorderValues>(BorderValues.Single), Size = 12 },
            new LeftBorder() { Val = new EnumValue<BorderValues>(BorderValues.Single), Size = 12 },
            new RightBorder() { Val = new EnumValue<BorderValues>(BorderValues.Single), Size = 12 },
            new InsideHorizontalBorder() { Val = new EnumValue<BorderValues>(BorderValues.Single), Size = 12 },
            new InsideVerticalBorder() { Val = new EnumValue<BorderValues>(BorderValues.Single), Size = 12 })));

        // Заголовок 
        var tr = new TableRow();
        for (var j = 0; j < widths.Length; ++j)
        {
            tr.Append(new TableCell(
             new TableCellProperties(new TableCellWidth()
             {
                 Width = widths[j].ToString()
             }),
             new Paragraph(new Run(new RunProperties(new Bold()), new Text(data.First()[j]))))); // Use Wordprocessing.Text
        }
        table.Append(tr);

        // Данные 
        table.Append(data.Skip(1).Select(x => new TableRow(x.Select(y => new TableCell(new Paragraph(new Run(new Text(y)))))))); // Use Wordprocessing.Text

        _body.Append(table);

        return this;
    }

    public WordBuilder AddParagraph(string text)
    {
        var paragraph = _body.AppendChild(new Paragraph());
        var run = paragraph.AppendChild(new Run());
        run.AppendChild(new Text(text)); // Use Wordprocessing.Text

        return this;
    }

    public void Build()
    {
        using var wordDocument = WordprocessingDocument.Create(_filePath, WordprocessingDocumentType.Document);
        var mainPart = wordDocument.AddMainDocumentPart();
        mainPart.Document = _doc;
    }
}