using System.IO.Compression;
using System.Net;
using System.Xml;
using Netina.Core.Models;
using Netina.Domain.Entities.ProductCategories;

namespace Netina.Core.BaseServices;


public class SiteMapService(
    IOptionsSnapshot<SiteSettings> snapshot,
    IUploadFileService uploadFileService,
    IRepositoryWrapper repositoryWrapper,
    IPageService pageService) : ISiteMapService
{
    private readonly SiteSettings _siteSetting = snapshot.Value;

    public async Task CreateSiteMapAsync()
    {
        XmlDocument doc = new XmlDocument();
        XmlDeclaration documentType = doc.CreateXmlDeclaration("1.0", "utf-8", null);
        doc.AppendChild(documentType);

        // XML declaration
        //XmlNode declaration = doc.CreateNode(XmlNodeType.XmlDeclaration, "sitemap.xml", null);
        //doc.AppendChild(declaration);

        // Root element: Catalog
        XmlElement root = doc.CreateElement("sitemapindex", "http://www.sitemaps.org/schemas/sitemap/0.9");
        doc.AppendChild(root);


        var productCategories = await repositoryWrapper.SetRepository<ProductCategory>()
            .TableNoTracking
            .ToListAsync();

        var blogCategories= await repositoryWrapper.SetRepository<BlogCategory>()
            .TableNoTracking
            .ToListAsync();

        foreach (var siteMapsUId in SiteMapUIds.AllSiteMapsUIds)
        {
            XmlElement siteMapElement = doc.CreateElement("sitemap", doc.DocumentElement?.NamespaceURI);
            root.AppendChild(siteMapElement);

            XmlElement id = doc.CreateElement("loc", doc.DocumentElement?.NamespaceURI);
            id.InnerText = Path.Combine(_siteSetting.StorageBaseUrl, "site-maps", $"{siteMapsUId}.gz");
            siteMapElement.AppendChild(id);

            XmlElement lastmod = doc.CreateElement("lastmod", doc.DocumentElement?.NamespaceURI);
            lastmod.InnerText = DateTime.Today.ToString("yyyy-MM-dd");
            siteMapElement.AppendChild(lastmod);
        }

        foreach (var blogCategory in blogCategories)
        {

            XmlElement siteMapElement = doc.CreateElement("sitemap", doc.DocumentElement?.NamespaceURI);
            root.AppendChild(siteMapElement);

            XmlElement id = doc.CreateElement("loc", doc.DocumentElement?.NamespaceURI);
            id.InnerText = Path.Combine(_siteSetting.StorageBaseUrl, "site-maps", $"{blogCategory.Id.ToString().ToUpper()}.gz");
            siteMapElement.AppendChild(id);

            XmlElement lastmod = doc.CreateElement("lastmod", doc.DocumentElement?.NamespaceURI);
            lastmod.InnerText = DateTime.Today.ToString("yyyy-MM-dd");
            siteMapElement.AppendChild(lastmod);
        }

        foreach (var productCategory in productCategories)
        {

            XmlElement siteMapElement = doc.CreateElement("sitemap", doc.DocumentElement?.NamespaceURI);
            root.AppendChild(siteMapElement);

            XmlElement id = doc.CreateElement("loc", doc.DocumentElement?.NamespaceURI);
            id.InnerText = Path.Combine(_siteSetting.StorageBaseUrl, "site-maps", $"{productCategory.Id.ToString().ToUpper()}.gz");
            siteMapElement.AppendChild(id);

            XmlElement lastmod = doc.CreateElement("lastmod", doc.DocumentElement?.NamespaceURI);
            lastmod.InnerText = DateTime.Today.ToString("yyyy-MM-dd");
            siteMapElement.AppendChild(lastmod);
        }

        System.IO.MemoryStream stream = new System.IO.MemoryStream();
        XmlTextWriter writer = new XmlTextWriter(stream, System.Text.Encoding.UTF8);

        doc.WriteTo(writer);
        writer.Flush();
        byte[] byteArray = stream.ToArray();
        await uploadFileService.UploadFileByteAsync(new FileUploadRequest
        {
            FileBytes = byteArray,
            ContentType = "text/xml",
            FileName = "site-map.xml",
            FileUploadType = FileUploadType.SiteMap,
        });

        await CreateCategoriesSiteMapsAsync();
        await CreateProductsSiteMapsAsync();
        await CreateBlogsSiteMapsAsync();
        await CreateBrandsSiteMapsAsync();
        await CreateBlogCategoriesSiteMapsAsync();
        await CreatePagesSiteMapsAsync();


    }

    private async Task CreatePagesSiteMapsAsync()
    {
        var siteMapsUId = SiteMapUIds.Pages;

        var pages = await pageService.GetPagesAsync();

        XmlDocument doc = new XmlDocument();
        XmlDeclaration documentType = doc.CreateXmlDeclaration("1.0", "utf-8", null);
        doc.AppendChild(documentType);

        //XmlNode declaration = doc.CreateNode(XmlNodeType.XmlDeclaration, "sitemap.xml", null);
        //doc.AppendChild(declaration);

        XmlElement root = doc.CreateElement("urlset", "http://www.sitemaps.org/schemas/sitemap/0.9");
        root.SetAttribute("xmlns:image", "http://www.google.com/schemas/sitemap-image/1.1");
        doc.AppendChild(root);

        foreach (var page in pages)
        {
            string slugHtml = page.Slug;
            if (slugHtml.Contains(' '))
                slugHtml = WebUtility.UrlEncode(slugHtml.Replace(' ', '-'));
            var productUrl = $"{_siteSetting.WebSiteUrl}/{slugHtml}";
            XmlElement urlElement = doc.CreateElement("url", doc.DocumentElement?.NamespaceURI);
            root.AppendChild(urlElement);

            XmlElement loc = doc.CreateElement("loc", doc.DocumentElement?.NamespaceURI);
            loc.InnerText = Path.Combine(productUrl);
            urlElement.AppendChild(loc);

            XmlElement lastmod = doc.CreateElement("lastmod", doc.DocumentElement?.NamespaceURI);
            lastmod.InnerText = page.ModifiedAt == DateTime.MinValue ? page.CreatedAt.ToString("yyyy-MM-dd") : page.ModifiedAt.ToString("yyyy-MM-dd");
            urlElement.AppendChild(lastmod);


            XmlElement changeFeq = doc.CreateElement("changefreq", doc.DocumentElement?.NamespaceURI);
            changeFeq.InnerText = "weekly";
            urlElement.AppendChild(changeFeq);


            XmlElement priority = doc.CreateElement("priority", doc.DocumentElement?.NamespaceURI);
            priority.InnerText = "0.8";
            urlElement.AppendChild(priority);

        }

        using var siteMapStream = new MemoryStream();
        await using var siteMapWriter = new XmlTextWriter(siteMapStream, Encoding.UTF8);
        doc.WriteTo(siteMapWriter);
        siteMapWriter.Flush();
        byte[] unZipBytes = siteMapStream.ToArray();

        using (var compressedStream = new MemoryStream())
        await using (var zipStream = new GZipStream(compressedStream, CompressionMode.Compress))
        {
            zipStream.Write(unZipBytes, 0, unZipBytes.Length);
            zipStream.Close();
            var siteMapArray = compressedStream.ToArray();

            await uploadFileService.UploadFileByteAsync(new FileUploadRequest
            {
                FileBytes = siteMapArray,
                ContentType = "text/plain",
                FileName = $"{siteMapsUId}.gz",
                FileUploadType = FileUploadType.SiteMap,
            });
        }
    }

    private async Task CreateBrandsSiteMapsAsync()  
    {
        var siteMapsUId = SiteMapUIds.Brands;

        var brands = await repositoryWrapper.SetRepository<Brand>()
            .TableNoTracking
            .ToListAsync();

        XmlDocument doc = new XmlDocument();
        XmlDeclaration documentType = doc.CreateXmlDeclaration("1.0", "utf-8", null);
        doc.AppendChild(documentType);

        //XmlNode declaration = doc.CreateNode(XmlNodeType.XmlDeclaration, "sitemap.xml", null);
        //doc.AppendChild(declaration);

        XmlElement root = doc.CreateElement("urlset", "http://www.sitemaps.org/schemas/sitemap/0.9");
        root.SetAttribute("xmlns:image", "http://www.google.com/schemas/sitemap-image/1.1");
        doc.AppendChild(root);

        foreach (var brand in brands)
        {
            string slugHtml = brand.Slug;
            if (slugHtml.Contains(' '))
                slugHtml = WebUtility.UrlEncode(slugHtml.Replace(' ', '-'));
            var productUrl = $"{_siteSetting.WebSiteUrl}/brands/{brand.Id}/{slugHtml}";
            XmlElement urlElement = doc.CreateElement("url", doc.DocumentElement?.NamespaceURI);
            root.AppendChild(urlElement);

            XmlElement loc = doc.CreateElement("loc", doc.DocumentElement?.NamespaceURI);
            loc.InnerText = Path.Combine(productUrl);
            urlElement.AppendChild(loc);

            XmlElement lastmod = doc.CreateElement("lastmod", doc.DocumentElement?.NamespaceURI);
            lastmod.InnerText = brand.ModifiedAt == DateTime.MinValue ? brand.CreatedAt.ToString("yyyy-MM-dd") : brand.ModifiedAt.ToString("yyyy-MM-dd");
            urlElement.AppendChild(lastmod);


            XmlElement changeFeq = doc.CreateElement("changefreq", doc.DocumentElement?.NamespaceURI);
            changeFeq.InnerText = "daily";
            urlElement.AppendChild(changeFeq);


            XmlElement priority = doc.CreateElement("priority", doc.DocumentElement?.NamespaceURI);
            priority.InnerText = "0.9";
            urlElement.AppendChild(priority);

        }

        using var siteMapStream = new MemoryStream();
        await using var siteMapWriter = new XmlTextWriter(siteMapStream, Encoding.UTF8);
        doc.WriteTo(siteMapWriter);
        siteMapWriter.Flush();
        byte[] unZipBytes = siteMapStream.ToArray();

        using (var compressedStream = new MemoryStream())
        await using (var zipStream = new GZipStream(compressedStream, CompressionMode.Compress))
        {
            zipStream.Write(unZipBytes, 0, unZipBytes.Length);
            zipStream.Close();
            var siteMapArray = compressedStream.ToArray();

            await uploadFileService.UploadFileByteAsync(new FileUploadRequest
            {
                FileBytes = siteMapArray,
                ContentType = "text/plain",
                FileName = $"{siteMapsUId}.gz",
                FileUploadType = FileUploadType.SiteMap,
            });
        }

    }

    private async Task CreateCategoriesSiteMapsAsync()
    {
        var siteMapsUId = SiteMapUIds.Categories;

        var categories = await repositoryWrapper.SetRepository<ProductCategory>()
            .TableNoTracking
            .ToListAsync();

        XmlDocument doc = new XmlDocument();
        XmlDeclaration documentType = doc.CreateXmlDeclaration("1.0", "utf-8", null);
        doc.AppendChild(documentType);

        //XmlNode declaration = doc.CreateNode(XmlNodeType.XmlDeclaration, "sitemap.xml", null);
        //doc.AppendChild(declaration);

        XmlElement root = doc.CreateElement("urlset", "http://www.sitemaps.org/schemas/sitemap/0.9");
        root.SetAttribute("xmlns:image", "http://www.google.com/schemas/sitemap-image/1.1");
        doc.AppendChild(root);

        foreach (var productCategory in categories)
        {
            string slugHtml = productCategory.Slug;
            if (slugHtml.Contains(' '))
                slugHtml = WebUtility.UrlEncode(slugHtml.Replace(' ', '-'));
            var productUrl = $"{_siteSetting.WebSiteUrl}/categories/{productCategory.Id}/{slugHtml}";
            XmlElement urlElement = doc.CreateElement("url", doc.DocumentElement?.NamespaceURI);
            root.AppendChild(urlElement);

            XmlElement loc = doc.CreateElement("loc", doc.DocumentElement?.NamespaceURI);
            loc.InnerText = Path.Combine(productUrl);
            urlElement.AppendChild(loc);

            XmlElement lastmod = doc.CreateElement("lastmod", doc.DocumentElement?.NamespaceURI);
            lastmod.InnerText = productCategory.ModifiedAt == DateTime.MinValue ? productCategory.CreatedAt.ToString("yyyy-MM-dd") : productCategory.ModifiedAt.ToString("yyyy-MM-dd");
            urlElement.AppendChild(lastmod);


            XmlElement changeFeq = doc.CreateElement("changefreq", doc.DocumentElement?.NamespaceURI);
            changeFeq.InnerText = "daily";
            urlElement.AppendChild(changeFeq);


            XmlElement priority = doc.CreateElement("priority", doc.DocumentElement?.NamespaceURI);
            priority.InnerText = "0.9";
            urlElement.AppendChild(priority);

        }

        using var siteMapStream = new MemoryStream();
        await using var siteMapWriter = new XmlTextWriter(siteMapStream, Encoding.UTF8);
        doc.WriteTo(siteMapWriter);
        siteMapWriter.Flush();
        byte[] unZipBytes = siteMapStream.ToArray();

        using (var compressedStream = new MemoryStream())
        await using (var zipStream = new GZipStream(compressedStream, CompressionMode.Compress))
        {
            zipStream.Write(unZipBytes, 0, unZipBytes.Length);
            zipStream.Close();
            var siteMapArray = compressedStream.ToArray();

            await uploadFileService.UploadFileByteAsync(new FileUploadRequest
            {
                FileBytes = siteMapArray,
                ContentType = "text/plain",
                FileName = $"{siteMapsUId}.gz",
                FileUploadType = FileUploadType.SiteMap,
            });
        }

    }

    private async Task CreateProductsSiteMapsAsync()
    {

        var products = await repositoryWrapper.SetRepository<Product>()
            .TableNoTracking
            .Select(ProductMapper.ProjectToSDto)
            .ToListAsync();

        var groupedProducts = products.GroupBy(p => p.CategoryId);

        foreach (var group in groupedProducts)
        {
            XmlDocument doc = new XmlDocument();
            XmlDeclaration documentType = doc.CreateXmlDeclaration("1.0", "utf-8", null);
            doc.AppendChild(documentType);

            //XmlNode declaration = doc.CreateNode(XmlNodeType.XmlDeclaration, "sitemap.xml", null);
            //doc.AppendChild(declaration);

            XmlElement root = doc.CreateElement("urlset", "http://www.sitemaps.org/schemas/sitemap/0.9");
            root.SetAttribute("xmlns:image", "http://www.google.com/schemas/sitemap-image/1.1");
            doc.AppendChild(root);

            foreach (var product in group)
            {
                string slugHtml = product.Slug;
                if (slugHtml.Contains(' '))
                    slugHtml = WebUtility.UrlEncode(slugHtml.Replace(' ', '-'));
                var productUrl = $"{_siteSetting.WebSiteUrl}/products/{product.Id}/{slugHtml}";
                XmlElement urlElement = doc.CreateElement("url", doc.DocumentElement?.NamespaceURI);
                root.AppendChild(urlElement);

                XmlElement loc = doc.CreateElement("loc", doc.DocumentElement?.NamespaceURI);
                loc.InnerText = Path.Combine(productUrl);
                urlElement.AppendChild(loc);

                XmlElement lastmod = doc.CreateElement("lastmod", doc.DocumentElement?.NamespaceURI);
                lastmod.InnerText = product.ModifiedAt == DateTime.MinValue ? product.CreatedAt.ToString("yyyy-MM-dd") : product.ModifiedAt.ToString("yyyy-MM-dd");
                urlElement.AppendChild(lastmod);


                XmlElement changeFeq = doc.CreateElement("changefreq", doc.DocumentElement?.NamespaceURI);
                changeFeq.InnerText = "daily";
                urlElement.AppendChild(changeFeq);


                XmlElement priority = doc.CreateElement("priority", doc.DocumentElement?.NamespaceURI);
                priority.InnerText = "0.9";
                urlElement.AppendChild(priority);

                if (product.MainImage != string.Empty)
                {
                    XmlElement image = doc.CreateElement("image:image", "http://www.google.com/schemas/sitemap-image/1.1");
                    urlElement.AppendChild(image);


                    XmlElement imageLoc = doc.CreateElement("image:loc", "http://www.google.com/schemas/sitemap-image/1.1");
                    var imageUrl = product.MainImage.Contains("Med") || product.MainImage.Contains("Thumb")
                    ? product.MainImage.Replace("Med", "Thumb")
                        : Path.Combine("Images", "Med", product.MainImage);
                    imageLoc.InnerText = $"{_siteSetting.StorageBaseUrl}/{imageUrl}";
                    image.AppendChild(imageLoc);


                    XmlElement imageCaption = doc.CreateElement("image:caption", "http://www.google.com/schemas/sitemap-image/1.1");
                    imageCaption.InnerText = product.PersianName;
                    image.AppendChild(imageCaption);
                }

            }

            using var siteMapStream = new MemoryStream();
            await using var siteMapWriter = new XmlTextWriter(siteMapStream, Encoding.UTF8);
            doc.WriteTo(siteMapWriter);
            siteMapWriter.Flush();
            byte[] unZipBytes = siteMapStream.ToArray();

            using (var compressedStream = new MemoryStream())
            await using (var zipStream = new GZipStream(compressedStream, CompressionMode.Compress))
            {
                zipStream.Write(unZipBytes, 0, unZipBytes.Length);
                zipStream.Close();
                var siteMapArray = compressedStream.ToArray();

                await uploadFileService.UploadFileByteAsync(new FileUploadRequest
                {
                    FileBytes = siteMapArray,
                    ContentType = "text/plain",
                    FileName = $"{group.Key.ToString().ToUpper()}.gz",
                    FileUploadType = FileUploadType.SiteMap,
                });
            }
        }



    }

    private async Task CreateBlogsSiteMapsAsync()
    {

        var blogs = await repositoryWrapper.SetRepository<Blog>()
            .TableNoTracking
            .Select(BlogMapper.ProjectToSDto)
            .ToListAsync();

        var groupedProducts = blogs.GroupBy(p => p.CategoryId);

        foreach (var group in groupedProducts)
        {
            XmlDocument doc = new XmlDocument();
            XmlDeclaration documentType = doc.CreateXmlDeclaration("1.0", "utf-8", null);
            doc.AppendChild(documentType);

            //XmlNode declaration = doc.CreateNode(XmlNodeType.XmlDeclaration, "sitemap.xml", null);
            //doc.AppendChild(declaration);

            XmlElement root = doc.CreateElement("urlset", "http://www.sitemaps.org/schemas/sitemap/0.9");
            root.SetAttribute("xmlns:image", "http://www.google.com/schemas/sitemap-image/1.1");
            //root.SetAttribute("xmlns:news", "http://www.google.com/schemas/sitemap-news/0.9");
            doc.AppendChild(root);

            foreach (var blog in group)
            {
                XmlElement urlElement = doc.CreateElement("url", doc.DocumentElement?.NamespaceURI);
                root.AppendChild(urlElement);

                XmlElement loc = doc.CreateElement("loc", doc.DocumentElement?.NamespaceURI);

                string slugHtml = blog.Slug;
                if (slugHtml.Contains(' '))
                    slugHtml = WebUtility.UrlEncode(slugHtml.Replace(' ', '-'));
                loc.InnerText = Path.Combine($"{_siteSetting.WebSiteUrl}/blogs/{blog.Id}/{slugHtml}");
                urlElement.AppendChild(loc);

                XmlElement lastmod = doc.CreateElement("lastmod", doc.DocumentElement?.NamespaceURI);
                lastmod.InnerText = blog.ModifiedAt == DateTime.MinValue
                    ? blog.CreatedAt.ToString("yyyy-MM-dd")
                    : blog.ModifiedAt.ToString("yyyy-MM-dd");
                urlElement.AppendChild(lastmod);


                XmlElement changeFeq = doc.CreateElement("changefreq", doc.DocumentElement?.NamespaceURI);
                changeFeq.InnerText = "daily";
                urlElement.AppendChild(changeFeq);


                XmlElement priority = doc.CreateElement("priority", doc.DocumentElement?.NamespaceURI);
                priority.InnerText = "0.9";
                urlElement.AppendChild(priority);

                //Image



                if (blog.MainImage != string.Empty)
                {
                    XmlElement image =
                        doc.CreateElement("image:image", "http://www.google.com/schemas/sitemap-image/1.1");
                    urlElement.AppendChild(image);


                    XmlElement imageLoc =
                        doc.CreateElement("image:loc", "http://www.google.com/schemas/sitemap-image/1.1");
                    var imageUrl = blog.MainImage.Contains("Med") || blog.MainImage.Contains("Thumb")
                        ? blog.MainImage.Replace("Med", "Thumb")
                        : Path.Combine("Images", "Med", blog.MainImage);
                    imageLoc.InnerText = $"{_siteSetting.StorageBaseUrl}/{imageUrl}";
                    image.AppendChild(imageLoc);


                    XmlElement imageCaption = doc.CreateElement("image:caption",
                        "http://www.google.com/schemas/sitemap-image/1.1");
                    imageCaption.InnerText = blog.Title;
                    image.AppendChild(imageCaption);
                }

                ////News

                //XmlElement news = doc.CreateElement("news:news", "http://www.google.com/schemas/sitemap-news/0.9");
                //urlElement.AppendChild(news);

                //XmlElement newTitle = doc.CreateElement("news:title", "http://www.google.com/schemas/sitemap-news/0.9");
                //newTitle.InnerText = blog.Title;
                //news.AppendChild(newTitle);

                //XmlElement newPublificationDate = doc.CreateElement("news:publication_date", "http://www.google.com/schemas/sitemap-news/0.9");
                //newPublificationDate.InnerText = blog.CreatedAt.ToString("yyyy-MM-dd");
                //news.AppendChild(newPublificationDate);



                //XmlElement newsPublification = doc.CreateElement("news:publication", "http://www.google.com/schemas/sitemap-news/0.9");
                //news.AppendChild(newsPublification);

                //XmlElement newsPublicationName = doc.CreateElement("news:name", "http://www.google.com/schemas/sitemap-news/0.9");
                //newsPublicationName.InnerText = blog.Title;
                //newsPublification.AppendChild(newsPublicationName);

                //XmlElement newsPublicationLanq = doc.CreateElement("news:language", "http://www.google.com/schemas/sitemap-news/0.9");
                //newsPublicationLanq.InnerText = blog.CreatedAt.ToString("yyyy-MM-dd");
                //newsPublification.AppendChild(newsPublicationLanq);

            }

            using var siteMapStream = new MemoryStream();
            await using var siteMapWriter = new XmlTextWriter(siteMapStream, Encoding.UTF8);
            doc.WriteTo(siteMapWriter);
            siteMapWriter.Flush();
            byte[] unZipBytes = siteMapStream.ToArray();

            using (var compressedStream = new MemoryStream())
            await using (var zipStream = new GZipStream(compressedStream, CompressionMode.Compress))
            {
                zipStream.Write(unZipBytes, 0, unZipBytes.Length);
                zipStream.Close();
                var siteMapArray = compressedStream.ToArray();

                await uploadFileService.UploadFileByteAsync(new FileUploadRequest
                {
                    FileBytes = siteMapArray,
                    ContentType = "text/plain",
                    FileName = $"{group.Key.ToString().ToUpper()}.gz",
                    FileUploadType = FileUploadType.SiteMap,
                });
            }



        }
    }

    private async Task CreateBlogCategoriesSiteMapsAsync()
    {
        var siteMapsUId = SiteMapUIds.BlogCategories;

        var blogCategories = await repositoryWrapper.SetRepository<BlogCategory>()
            .TableNoTracking
            .ToListAsync();

        XmlDocument doc = new XmlDocument();
        XmlDeclaration documentType = doc.CreateXmlDeclaration("1.0", "utf-8", null);
        doc.AppendChild(documentType);

        //XmlNode declaration = doc.CreateNode(XmlNodeType.XmlDeclaration, "sitemap.xml", null);
        //doc.AppendChild(declaration);

        XmlElement root = doc.CreateElement("urlset", "http://www.sitemaps.org/schemas/sitemap/0.9");
        root.SetAttribute("xmlns:image", "http://www.google.com/schemas/sitemap-image/1.1");
        root.SetAttribute("xmlns:news", "http://www.google.com/schemas/sitemap-news/0.9");
        doc.AppendChild(root);

        foreach (var blogCategory in blogCategories)
        {
            XmlElement urlElement = doc.CreateElement("url", doc.DocumentElement?.NamespaceURI);
            root.AppendChild(urlElement);

            XmlElement loc = doc.CreateElement("loc", doc.DocumentElement?.NamespaceURI);
            loc.InnerText = Path.Combine($"{_siteSetting.WebSiteUrl}/blogs?blogCategoryId={blogCategory.Id}");
            urlElement.AppendChild(loc);

            XmlElement lastmod = doc.CreateElement("lastmod", doc.DocumentElement?.NamespaceURI);
            lastmod.InnerText = blogCategory.ModifiedAt == DateTime.MinValue ? blogCategory.CreatedAt.ToString("yyyy-MM-dd") : blogCategory.ModifiedAt.ToString("yyyy-MM-dd");
            urlElement.AppendChild(lastmod);


            XmlElement changeFeq = doc.CreateElement("changefreq", doc.DocumentElement?.NamespaceURI);
            changeFeq.InnerText = "daily";
            urlElement.AppendChild(changeFeq);


            XmlElement priority = doc.CreateElement("priority", doc.DocumentElement?.NamespaceURI);
            priority.InnerText = "0.9";
            urlElement.AppendChild(priority);

        }

        using var siteMapStream = new MemoryStream();
        await using var siteMapWriter = new XmlTextWriter(siteMapStream, Encoding.UTF8);
        doc.WriteTo(siteMapWriter);
        siteMapWriter.Flush();
        byte[] unZipBytes = siteMapStream.ToArray();

        using (var compressedStream = new MemoryStream())
        await using (var zipStream = new GZipStream(compressedStream, CompressionMode.Compress))
        {
            zipStream.Write(unZipBytes, 0, unZipBytes.Length);
            zipStream.Close();
            var siteMapArray = compressedStream.ToArray();

            await uploadFileService.UploadFileByteAsync(new FileUploadRequest
            {
                FileBytes = siteMapArray,
                ContentType = "text/plain",
                FileName = $"{siteMapsUId}.gz",
                FileUploadType = FileUploadType.SiteMap,
            });
        }

    }
}