using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using CanteenBusinessLogic.OfficePackage.HelperEnums;
using CanteenBusinessLogic.OfficePackage.HelperModels;
using DocumentFormat.OpenXml;
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Wordprocessing;

namespace CanteenBusinessLogic.OfficePackage.Implements
{
    public class SaveToWord : AbstractSaveToWord
    {
        private WordprocessingDocument wordDocument;
        private Body docBody;
        private static JustificationValues GetJustificationValues(WordJustificationType type)
        {
            return type switch
            {
                WordJustificationType.Both => JustificationValues.Both,
                WordJustificationType.Center => JustificationValues.Center,
                _ => JustificationValues.Left
            };
        }
        private static SectionProperties CreateSectionProperties()
        {
            var properties = new SectionProperties();
            var pageSize = new PageSize
            {
                Orient = PageOrientationValues.Portrait
            };
            properties.AppendChild(pageSize);
            return properties;
        }
        private static ParagraphProperties CreateParagraphProperties(WordTextProperties paragraphProperites)
        {
            if (paragraphProperites != null)
            {
                var properites = new ParagraphProperties();
                properites.AppendChild(new Justification() { Val = GetJustificationValues(paragraphProperites.JustificationType) });
                properites.AppendChild(new SpacingBetweenLines { LineRule = LineSpacingRuleValues.Auto });
                properites.AppendChild(new Indentation());
                var paragraphMarkRunProperties = new ParagraphMarkRunProperties();
                if (!string.IsNullOrEmpty(paragraphProperites.Size))
                {
                    paragraphMarkRunProperties.AppendChild(new FontSize { Val = paragraphProperites.Size });
                }
                properites.AppendChild(paragraphMarkRunProperties);
                return properites;
            }
            return null;
        }
        protected override void CreateWord(WordInfo info)
        {
            wordDocument = WordprocessingDocument.Create(info.FileName, WordprocessingDocumentType.Document);
            MainDocumentPart mainPart = wordDocument.AddMainDocumentPart();
            mainPart.Document = new Document();
            docBody = mainPart.Document.AppendChild(new Body());
        }
        protected override void CreateParagraph(WordParagraph paragraph)
        {
            if (paragraph != null)
            {
                var docParagraph = new Paragraph();
                docParagraph.AppendChild(CreateParagraphProperties(paragraph.TextProperties));
                foreach (var run in paragraph.Texts)
                {
                    var docRun = new Run();
                    var properties = new RunProperties();
                    properties.AppendChild(new FontSize { Val = run.Item2.Size });
                    if (run.Item2.Bold)
                    {
                        properties.AppendChild(new Bold());
                    }
                    docRun.AppendChild(properties);
                    docRun.AppendChild(new Text
                    {
                        Text = run.Item1,
                        Space = SpaceProcessingModeValues.Preserve
                    });
                    docParagraph.AppendChild(docRun);
                }
                docBody.AppendChild(docParagraph);
            }
        }
        protected override void SaveWord(WordInfo info)
        {
            docBody.AppendChild(CreateSectionProperties());
            wordDocument.MainDocumentPart.Document.Save();
            wordDocument.Close();
        }
    }
}