last ...

Extensions/XCategoryResourceExtensions.cs

@@ -0,0 +1,79 @@
+using System.Linq;
+using xCategoryService.Providers.Dtos;
+using xCommons.Extensions;
+
+namespace xCategoryService.Extensions
+{
+    /// <summary>
+    /// Extensions Method Related to XCategoryResourceDto ...
+    /// </summary>
+    public static class XCategoryResourceExtensions
+    {
+        /// <summary>
+        /// Check a Resource is Valid or not ...
+        /// </summary>
+        /// <param name="source"></param>
+        /// <returns></returns>
+        public static bool IsValid(
+            this XCategoryResourceDto source
+        )
+        {
+            //
+            return
+                !source.IsNullOrDefault() &&
+                !source.Item.IsNullOrDefault();
+        }
+
+        /// <summary>
+        /// Check a Resource is a New Resource for Add or not ...
+        /// </summary>
+        /// <param name="source"></param>
+        /// <returns></returns>
+        public static bool IsNew(
+            this XCategoryResourceDto source
+        )
+        {
+            //
+            return
+                source.IsValid() &&
+                !source.Item.Id.IsValidIntId();
+        }
+
+        /// <summary>
+        /// Extract Available Languages ...
+        /// </summary>
+        /// <param name="source"></param>
+        /// <returns></returns>
+        public static string[] ExtractLanguages(
+            this XCategoryResourceDto source
+        )
+        {
+            //
+            var result = new string[] { };
+
+            //
+            // Validate ...
+            if (!source.IsValid())
+            {
+                return result;
+            }
+
+            //
+            result =
+                source.Titles.Locales.Select(x => x.Language)
+                .Union(source.Descriptions.Locales.Select(x => x.Language))
+                .Distinct()
+                .ToArray();
+
+            //
+            return result;
+        }
+
+        public static bool ValidateResources(
+            this XCategoryResourceDto source
+        )
+        {
+            var result = 
+        }
+    }
+}

Interfaces/IXCategoryProvider.cs

@@ -36,6 +36,40 @@ namespace xCategoryService.Interfaces
             string connectionId = null,
             XUserClaimsInfoDto userInfo = null,
             CancellationToken cancellationToken = default
-        );        
+        );
+
+        /// <summary>
+        /// Update a Category Item for Specified Language ...
+        /// </summary>
+        /// <param name="id"></param>
+        /// <param name="item"></param>
+        /// <param name="language"></param>
+        /// <param name="connectionId"></param>
+        /// <param name="userInfo"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        Task<XCategoryResourceDto> Update(
+            int id,
+            XCategoryDto item,
+            string language = null,
+            string connectionId = null,
+            XUserClaimsInfoDto userInfo = null,
+            CancellationToken cancellationToken = default
+        );
+
+        /// <summary>
+        /// Referesh a Resource ...
+        /// </summary>
+        /// <param name="resource"></param>
+        /// <param name="connectionId"></param>
+        /// <param name="userInfo"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        Task<XCategoryResourceDto> RefereshResource(
+            XCategoryResourceDto resource,
+            string connectionId = null,
+            XUserClaimsInfoDto userInfo = null,
+            CancellationToken cancellationToken = default
+        );
     }
 }

Providers/XCategoryProvider.cs

@@ -319,6 +319,32 @@ namespace xCategoryService.Providers
                 language: language,
                 cancellationToken: cancellationToken
             );
+            if (!isValid)
+            {
+                XException.NotFound.Throw();
+            }
+
+            //
+            // Retrieve Category Dto for Validate Owining ...
+            var dto = await Get(
+                id: id,
+                includeBuilder: null,
+                cancellationToken: cancellationToken
+            );
+
+            //
+            // Check Permission ...
+            isValid =
+                !dto.IsNullOrDefault() &&
+                !userInfo.IsNullOrDefault() &&
+                IsOwned(
+                    item: dto,
+                    userInfo: userInfo
+                );
+            if (!isValid)
+            {
+                XException.NotAllowed.Throw();
+            }
 
             //
             // Retrieve Exists Item Resource ...
@@ -328,8 +354,132 @@ namespace xCategoryService.Providers
             );
 
             //
-            // Here we can Use Exists Title and Description for Access Resource Titles ...
+            var titleUpdated = false;
+            var descriptionUpdated = false;
 
+            //
+            // Update Title ...
+            resource.Titles.Locales
+                .ToList()
+                .ForEach(tl =>
+                {
+                    //
+                    if (tl.Language.Equals(language, System.StringComparison.InvariantCultureIgnoreCase))
+                    {
+                        //
+                        titleUpdated = true;
+                        tl.Value = item.Title;
+                    }
+                });
+
+            //
+            // Update Description ...
+            resource.Descriptions.Locales
+                .ToList()
+                .ForEach(dl =>
+                {
+                    //
+                    if (dl.Language.Equals(language, System.StringComparison.InvariantCultureIgnoreCase))
+                    {
+                        //
+                        descriptionUpdated = true;
+                        dl.Value = item.Description;
+                    }
+                });
+
+            //
+            // Validate Title and Description Updated ...
+            isValid = titleUpdated && descriptionUpdated;
+            if (!isValid)
+            {
+                XException.ActionFailed.Throw();
+            }
+
+            //
+            resource = await RefereshResource(
+                resource: resource,
+                userInfo: userInfo,
+                connectionId: connectionId,
+                cancellationToken: cancellationToken
+            );
+
+            //
+            return resource;
+        }
+
+        /// <summary>
+        /// Referesh a Resource ...
+        /// </summary>
+        /// <param name="resource"></param>
+        /// <param name="connectionId"></param>
+        /// <param name="userInfo"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        public async Task<XCategoryResourceDto> RefereshResource(
+            XCategoryResourceDto resource,
+            string connectionId = null,
+            XUserClaimsInfoDto userInfo = null,
+            CancellationToken cancellationToken = default
+        )
+        {
+            //
+            // Validate Args ...
+            var isValid =
+                !resource.IsNull() &&
+                !resource.Item.IsNullOrDefault();
+            if (!isValid)
+            {
+                XException.InvalidArgs.Throw();
+            }
+
+            //
+            var id = -1;
+
+            //
+            // Check Item Exists ...
+            XCategoryDto dto =
+                !resource.Item.Id.IsValidIntId()
+                ? null
+                : await Get(
+                    id: resource.Item.Id,
+                    includeBuilder: null,
+                    cancellationToken: cancellationToken
+            );
+            var isExists = !dto.IsNullOrDefault();
+
+            //
+            // Do Referesh Based on Existance ...
+            var isNew =
+                !isExists &&
+                !resource.Item.Id.IsValidIntId();
+            if (isNew)
+            {
+                //
+                // Add ...
+            }
+            else if (isExists)
+            {
+                //
+                // Re State ...
+                id = resource.Item.Id;
+            }
+
+            //
+            isValid = id.IsValidIntId();
+            if (!isValid)
+            {
+                XException.ActionFailed.Throw();
+            }
+
+            //
+            // Get Result ...
+            var result = await GetResource(
+                id: id,
+                cancellationToken: cancellationToken
+            );
+
+            //
+            return result;
         }
     }
 }