using IRaCIS.Core.Domain.Share;
using NPOI.XWPF.UserModel;
using System.Globalization;
using Xceed.Document.NET;
using Xceed.Words.NET;

namespace IRaCIS.Core.Application.Helper;

/// <summary>
/// 利用DocX 库 处理word国际化模板
/// </summary>
public static class WordTempleteHelper
{
    public static void DocX_GetInternationalTempleteStream(string filePath, Stream memoryStream)
    {

        var isEn_US = CultureInfo.CurrentCulture.Name == StaticData.CultureInfo.en_US;

        using (DocX document = DocX.Load(filePath))
        {
            // 查找书签
            var bookmarkEn_Start = document.Bookmarks.FirstOrDefault(b => b.Name == StaticData.CultureInfo.en_US_bookMark);

            if (bookmarkEn_Start != null)
            {
                // 获取书签的起始位置
                //int bookmarkCNStartPos = bookmarkCn_Start.Paragraph.StartIndex;

                var bookmarkENStartPos = bookmarkEn_Start.Paragraph.StartIndex;

                // 创建一个要删除段落的列表
                List<Paragraph> paragraphsToRemove = new List<Paragraph>();

                foreach (var item in document.Paragraphs)
                {
                    //中文模板在前，英文在后，英文模板，就删除英文之前的，中文模板就删除英文之后的

                    if (isEn_US ? item.EndIndex < bookmarkENStartPos : item.StartIndex >= bookmarkENStartPos)
                    {
                        paragraphsToRemove.Add(item);
                    }
                }

                foreach (var paragraph in paragraphsToRemove)
                {
                    document.RemoveParagraph(paragraph);
                }

            }

            // 保存修改
            document.SaveAs(memoryStream);
        }
    }


    public static void Npoi_GetInternationalTempleteStream(string filePath, Stream memoryStream)
    {

        var isEn_US = CultureInfo.CurrentCulture.Name == StaticData.CultureInfo.en_US;

        using (FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read))
        {
            XWPFDocument doc = new XWPFDocument(fs);

            // 查找包含指定书签的段落及其索引
            var bookmarkParagraph = doc.Paragraphs
                .FirstOrDefault(p => p.GetCTP().GetBookmarkStartList().Any(b => b.name == StaticData.CultureInfo.en_US_bookMark));

            if (bookmarkParagraph != null)
            {
                int bookmarkIndex = doc.Paragraphs.IndexOf(bookmarkParagraph);

                if (isEn_US)
                {
                    // 从书签所在段落开始，删除之前的所有段落
                    for (int i = bookmarkIndex - 1; i >= 0; i--)
                    {
                        doc.RemoveBodyElement(i);
                    }
                }
                else
                {
                    // 删除书签之后的所有段落
                    for (int i = doc.Paragraphs.Count - 1; i >= bookmarkIndex; i--)
                    {
                        doc.RemoveBodyElement(i);
                    }
                }
            }
            doc.Write(memoryStream);
        }
    }

}