using MigraDoc.DocumentObjectModel;
using MigraDoc.DocumentObjectModel.Tables;
using MigraDoc.Rendering;
using PolyclinicBusinessLogic.OfficePackage.HelperEnums;
using PolyclinicBusinessLogic.OfficePackage.HelperModels.PDF;

namespace PolyclinicBusinessLogic.OfficePackage.Implements
{
    public class SaveToPdfProcedures : AbstractSaveToPdfProcedures
    {
        private Document? _document;
        private Section? _section;
        private Table? _table;
        private static ParagraphAlignment GetParagraphAlignment(PdfParagraphAlignmentType type)
        {
            return type switch
            {
                PdfParagraphAlignmentType.Center => ParagraphAlignment.Center,
                PdfParagraphAlignmentType.Left => ParagraphAlignment.Left,
                PdfParagraphAlignmentType.Rigth => ParagraphAlignment.Right,
                _ => ParagraphAlignment.Justify,
            };
        }
        /// <summary>
        /// Создание стилей для документа
        /// </summary>
        /// <param name="document"></param>
        private static void DefineStyles(Document document)
        {
            var style = document.Styles["Normal"];
            style.Font.Name = "Times New Roman";
            style.Font.Size = 11;
            style = document.Styles.AddStyle("NormalTitle", "Normal");
            style.Font.Bold = true;
        }
        protected override void CreatePdf(PdfProceduresByMedicamentsAndSymptomsInfo info)
        {
            _document = new Document();
            DefineStyles(_document);
            _section = _document.AddSection();
        }
        protected override void CreateParagraph(PdfParagraph pdfParagraph)
        {
            if (_section == null)
            {
                return;
            }
            var paragraph = _section.AddParagraph(pdfParagraph.Text);
            paragraph.Format.SpaceAfter = "1cm";
            paragraph.Format.Alignment = GetParagraphAlignment(pdfParagraph.ParagraphAlignment);
            paragraph.Style = pdfParagraph.Style;
        }
        protected override void CreateTable(List<string> columns)
        {
            if (_document == null)
            {
                return;
            }
            _table = _document.LastSection.AddTable();
            // Получаем доступную ширину страницы, чтобы таблица не вылезала за края
            var pageWidth = _document.DefaultPageSetup.PageWidth - _document.DefaultPageSetup.LeftMargin - _document.DefaultPageSetup.RightMargin;
            var totalWidth = columns.Sum(col => Unit.FromCentimeter(double.Parse(col.Replace("cm", ""))));

            // Если ширина таблицы превышает доступную ширину страницы, уменьшаем ширину колонок пропорционально
            if (totalWidth > pageWidth)
            {
                var scale = pageWidth / totalWidth;
                for (int i = 0; i < columns.Count; i++)
                {
                    columns[i] = $"{Unit.FromCentimeter(double.Parse(columns[i].Replace("cm", "")) * scale).Centimeter}cm";
                }
            }
            foreach (var elem in columns)
            {
                _table.AddColumn(elem);
            }
        }
        protected override void CreateRow(PdfRowParameters rowParameters)
        {
            if (_table == null)
            {
                return;
            }
            var row = _table.AddRow();
            for (int i = 0; i < rowParameters.Texts.Count; ++i)
            {
                row.Cells[i].AddParagraph(rowParameters.Texts[i]);
                if (!string.IsNullOrEmpty(rowParameters.Style))
                {
                    row.Cells[i].Style = rowParameters.Style;
                }
                Unit borderWidth = 0.5;
                row.Cells[i].Borders.Left.Width = borderWidth;
                row.Cells[i].Borders.Right.Width = borderWidth;
                row.Cells[i].Borders.Top.Width = borderWidth;
                row.Cells[i].Borders.Bottom.Width = borderWidth;
                row.Cells[i].Format.Alignment = GetParagraphAlignment(rowParameters.ParagraphAlignment);
                row.Cells[i].VerticalAlignment = VerticalAlignment.Center;
            }
        }
        protected override void SavePdf(PdfProceduresByMedicamentsAndSymptomsInfo info)
        {
            var renderer = new PdfDocumentRenderer(true)
            {
                Document = _document
            };
            renderer.RenderDocument();
            renderer.PdfDocument.Save(info.FileName);
        }
    }
}