categorie fix

Webshop.Api/Controllers/Admin/AdminCategorieController.cs

@@ -4,6 +4,7 @@ using Microsoft.AspNetCore.Mvc;
 using System;
 using System.Collections.Generic;
 using System.Threading.Tasks;
+using Webshop.Application;
 using Webshop.Application.DTOs.Categorie;
 using Webshop.Application.Services.Admin;
 
@@ -37,41 +38,51 @@ namespace Webshop.Api.Controllers.Admin
         }
 
         [HttpPost]
-        public async Task<ActionResult<CategorieDto>> Createcategorie([FromBody] CreatecategorieDto categorieDto)
+        [Consumes("multipart/form-data")]
+        public async Task<ActionResult<CategorieDto>> CreateCategorie([FromForm] CreatecategorieDto categorieDto)
         {
             if (!ModelState.IsValid) return BadRequest(ModelState);
 
-            var (createdcategorie, errorMessage) = await _adminCategorieService.CreateAsync(categorieDto);
+            var result = await _adminCategorieService.CreateAsync(categorieDto);
 
-            if (createdcategorie == null)
+            if (result.Type == ServiceResultType.Success)
             {
-                return BadRequest(new { Message = errorMessage });
+                return CreatedAtAction(nameof(GetcategorieById), new { id = result.Value!.Id }, result.Value);
             }
             
-            return CreatedAtAction(nameof(GetcategorieById), new { id = createdcategorie.Id }, createdcategorie);
+            return BadRequest(new { Message = result.ErrorMessage });
         }
 
         [HttpPut("{id}")]
-        public async Task<IActionResult> Updatecategorie(Guid id, [FromBody] CreatecategorieDto categorieDto)
+        [Consumes("multipart/form-data")]
+        public async Task<IActionResult> UpdateCategorie(Guid id, [FromForm] UpdatecategorieDto categorieDto)
         {
+            if (id != categorieDto.Id) return BadRequest("ID in URL und Body stimmen nicht <20>berein.");
             if (!ModelState.IsValid) return BadRequest(ModelState);
 
-            var (success, errorMessage) = await _adminCategorieService.UpdateAsync(id, categorieDto);
+            var result = await _adminCategorieService.UpdateAsync(categorieDto);
 
-            if (!success)
+            return result.Type switch
             {
-                return BadRequest(new { Message = errorMessage });
+                ServiceResultType.Success => NoContent(),
-            }
+                ServiceResultType.NotFound => NotFound(new { Message = result.ErrorMessage }),
-
+                ServiceResultType.InvalidInput => BadRequest(new { Message = result.ErrorMessage }),
-            return NoContent();
+                _ => StatusCode(500, "Ein unerwarteter Fehler ist aufgetreten.")
+            };
         }
 
         [HttpDelete("{id}")]
-        public async Task<IActionResult> Deletecategorie(Guid id)
+        public async Task<IActionResult> DeleteCategorie(Guid id)
         {
-            var success = await _adminCategorieService.DeleteAsync(id);
+            var result = await _adminCategorieService.DeleteAsync(id);
-            if (!success) return NotFound();
+
-            return NoContent();
+            return result.Type switch
+            {
+                ServiceResultType.Success => NoContent(),
+                ServiceResultType.NotFound => NotFound(new { Message = result.ErrorMessage }),
+                ServiceResultType.Conflict => Conflict(new { Message = result.ErrorMessage }),
+                _ => StatusCode(500, "Ein unerwarteter Fehler ist aufgetreten.")
+            };
         }
     }
 }

Webshop.Application/DTOs/Categories/CreateCategorieDto.cs

@@ -1,6 +1,8 @@
 // Auto-generiert von CreateWebshopFiles.ps1
+using Microsoft.AspNetCore.Http;
 using System;
 using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
 using System.Threading.Tasks;
 
 
@@ -8,12 +10,20 @@ namespace Webshop.Application.DTOs.Categorie
 {
     public class CreatecategorieDto
     {
+        [Required]
         public string Name { get; set; } = string.Empty;
-        public string Slug { get; set; } = string.Empty;
+
-        public string Description { get; set; } = string.Empty;
+        [Required]
+        public string Slug { get; set; }
+
+        public string? Description { get; set; }
         public Guid? ParentcategorieId { get; set; }
-        public string? ImageUrl { get; set; }
+
+        public IFormFile? ImageFile { get; set; } // << HINZUF<55>GEN >>
+
         public bool IsActive { get; set; } = true;
         public int DisplayOrder { get; set; } = 0;
+
+        // public string? ImageUrl { get; set; } // << ENTFERNEN >>
     }
 }

Webshop.Application/DTOs/Categories/UpdatecategorieDto.cs

@@ -0,0 +1,23 @@
+// src/Webshop.Application/DTOs/Categorie/UpdatecategorieDto.cs
+using Microsoft.AspNetCore.Http;
+using System;
+using System.ComponentModel.DataAnnotations;
+
+namespace Webshop.Application.DTOs.Categorie
+{
+    public class UpdatecategorieDto
+    {
+        [Required]
+        public Guid Id { get; set; }
+        [Required]
+        public string Name { get; set; } = string.Empty;
+        [Required]
+        public string Slug { get; set; }
+        public string? Description { get; set; }
+        public Guid? ParentcategorieId { get; set; }
+        public IFormFile? ImageFile { get; set; }
+        public string? ImageUrl { get; set; } // Zum Beibehalten oder Löschen der alten URL
+        public bool IsActive { get; set; }
+        public int DisplayOrder { get; set; }
+    }
+}

Webshop.Application/ServiceResult.cs

@@ -0,0 +1,44 @@
+// src/Webshop.Application/ServiceResult.cs
+namespace Webshop.Application
+{
+    public enum ServiceResultType
+    {
+        Success,
+        NotFound,
+        InvalidInput,
+        Conflict,
+        Failure
+    }
+
+    public class ServiceResult
+    {
+        public ServiceResultType Type { get; }
+        public string? ErrorMessage { get; }
+
+        protected ServiceResult(ServiceResultType type, string? errorMessage = null)
+        {
+            Type = type;
+            ErrorMessage = errorMessage;
+        }
+
+        public static ServiceResult Ok() => new ServiceResult(ServiceResultType.Success);
+        public static ServiceResult<T> Ok<T>(T value) => new ServiceResult<T>(value, ServiceResultType.Success);
+
+        // Allgemeine Fail-Methode
+        public static ServiceResult Fail(ServiceResultType type, string errorMessage) => new ServiceResult(type, errorMessage);
+
+        // Generische Fail-Methode
+        public static ServiceResult<T> Fail<T>(ServiceResultType type, string errorMessage) => new ServiceResult<T>(default, type, errorMessage);
+    }
+
+    public class ServiceResult<T> : ServiceResult
+    {
+        public T? Value { get; }
+
+        protected internal ServiceResult(T? value, ServiceResultType type, string? errorMessage = null)
+            : base(type, errorMessage)
+        {
+            Value = value;
+        }
+    }
+}

Webshop.Application/Services/Admin/AdminCategorieService.cs

@@ -6,22 +6,115 @@ using System.Threading.Tasks;
 using Webshop.Application.DTOs.Categorie;
 using Webshop.Domain.Entities;
 using Webshop.Domain.Interfaces;
+using Webshop.Application; // << NEU: F<>r ServiceResult >>
 
 namespace Webshop.Application.Services.Admin
 {
     public class AdminCategorieService : IAdminCategorieService
     {
         private readonly ICategorieRepository _categorieRepository;
+        private readonly IFileStorageService _fileStorageService;
 
-        public AdminCategorieService(ICategorieRepository categorieRepository)
+        public AdminCategorieService(ICategorieRepository categorieRepository, IFileStorageService fileStorageService)
         {
             _categorieRepository = categorieRepository;
+            _fileStorageService = fileStorageService;
         }
 
         public async Task<IEnumerable<CategorieDto>> GetAllAsync()
         {
             var categories = await _categorieRepository.GetAllAsync();
-            return categories.Select(c => new CategorieDto
+            return categories.Select(MapToDto).ToList();
+        }
+
+        public async Task<CategorieDto?> GetByIdAsync(Guid id)
+        {
+            var categorie = await _categorieRepository.GetByIdAsync(id);
+            return categorie != null ? MapToDto(categorie) : null;
+        }
+
+        public async Task<ServiceResult<CategorieDto>> CreateAsync(CreatecategorieDto categorieDto)
+        {
+            var existing = await _categorieRepository.GetBySlugAsync(categorieDto.Slug);
+            if (existing != null)
+            {
+                return ServiceResult.Fail<CategorieDto>(ServiceResultType.InvalidInput, "Eine Kategorie mit diesem Slug existiert bereits.");
+            }
+
+            string? imageUrl = null;
+            if (categorieDto.ImageFile != null)
+            {
+                await using var stream = categorieDto.ImageFile.OpenReadStream();
+                imageUrl = await _fileStorageService.SaveFileAsync(stream, categorieDto.ImageFile.FileName, categorieDto.ImageFile.ContentType);
+            }
+
+            var categorie = new Categorie
+            {
+                Name = categorieDto.Name,
+                Slug = categorieDto.Slug,
+                Description = categorieDto.Description,
+                ParentcategorieId = categorieDto.ParentcategorieId,
+                ImageUrl = imageUrl,
+                IsActive = categorieDto.IsActive,
+                DisplayOrder = categorieDto.DisplayOrder,
+                CreatedDate = DateTimeOffset.UtcNow
+            };
+
+            await _categorieRepository.AddAsync(categorie);
+
+            var createdDto = MapToDto(categorie);
+            return ServiceResult.Ok(createdDto);
+        }
+
+        public async Task<ServiceResult> UpdateAsync(UpdatecategorieDto categorieDto)
+        {
+            var existing = await _categorieRepository.GetByIdAsync(categorieDto.Id);
+            if (existing == null) return ServiceResult.Fail(ServiceResultType.NotFound, "Kategorie nicht gefunden.");
+
+            var slugExists = await _categorieRepository.GetBySlugAsync(categorieDto.Slug);
+            if (slugExists != null && slugExists.Id != categorieDto.Id)
+            {
+                return ServiceResult.Fail(ServiceResultType.InvalidInput, "Eine andere Kategorie mit diesem Slug existiert bereits.");
+            }
+
+            string? imageUrl = existing.ImageUrl;
+            if (categorieDto.ImageFile != null)
+            {
+                await using var stream = categorieDto.ImageFile.OpenReadStream();
+                imageUrl = await _fileStorageService.SaveFileAsync(stream, categorieDto.ImageFile.FileName, categorieDto.ImageFile.ContentType);
+            }
+            else if (string.IsNullOrEmpty(categorieDto.ImageUrl))
+            {
+                imageUrl = null;
+            }
+
+
+            existing.Name = categorieDto.Name;
+            existing.Slug = categorieDto.Slug;
+            existing.Description = categorieDto.Description;
+            existing.ParentcategorieId = categorieDto.ParentcategorieId;
+            existing.ImageUrl = imageUrl;
+            existing.IsActive = categorieDto.IsActive;
+            existing.DisplayOrder = categorieDto.DisplayOrder;
+            existing.LastModifiedDate = DateTimeOffset.UtcNow;
+
+            await _categorieRepository.UpdateAsync(existing);
+            return ServiceResult.Ok();
+        }
+
+        public async Task<ServiceResult> DeleteAsync(Guid id)
+        {
+            var categorie = await _categorieRepository.GetByIdAsync(id);
+            if (categorie == null) return ServiceResult.Fail(ServiceResultType.NotFound, "Kategorie nicht gefunden.");
+
+            await _categorieRepository.DeleteAsync(id);
+            return ServiceResult.Ok();
+        }
+
+        // Private Helper-Methode f<>r konsistentes Mapping
+        private CategorieDto MapToDto(Categorie c)
+        {
+            return new CategorieDto
             {
                 Id = c.Id,
                 Name = c.Name,
@@ -31,99 +124,7 @@ namespace Webshop.Application.Services.Admin
                 ImageUrl = c.ImageUrl,
                 IsActive = c.IsActive,
                 DisplayOrder = c.DisplayOrder
-            }).ToList();
-        }
-
-        public async Task<CategorieDto?> GetByIdAsync(Guid id)
-        {
-            var categorie = await _categorieRepository.GetByIdAsync(id);
-            if (categorie == null) return null;
-
-            return new CategorieDto
-            {
-                Id = categorie.Id,
-                Name = categorie.Name,
-                Slug = categorie.Slug,
-                Description = categorie.Description,
-                ParentcategorieId = categorie.ParentcategorieId,
-                ImageUrl = categorie.ImageUrl,
-                IsActive = categorie.IsActive,
-                DisplayOrder = categorie.DisplayOrder
             };
         }
-
-        public async Task<(CategorieDto? Createdcategorie, string? ErrorMessage)> CreateAsync(CreatecategorieDto categorieDto)
-        {
-            var existingcategorie = await _categorieRepository.GetBySlugAsync(categorieDto.Slug);
-            if (existingcategorie != null)
-            {
-                return (null, "Eine Kategorie mit diesem Slug existiert bereits.");
-            }
-
-            var categorie = new Categorie
-            {
-                Id = Guid.NewGuid(),
-                Name = categorieDto.Name,
-                Slug = categorieDto.Slug,
-                Description = categorieDto.Description,
-                ParentcategorieId = categorieDto.ParentcategorieId,
-                ImageUrl = categorieDto.ImageUrl,
-                IsActive = categorieDto.IsActive,
-                DisplayOrder = categorieDto.DisplayOrder,
-                CreatedDate = DateTimeOffset.UtcNow
-            };
-
-            await _categorieRepository.AddAsync(categorie);
-
-            var createdDto = new CategorieDto
-            {
-                Id = categorie.Id,
-                Name = categorie.Name,
-                Slug = categorie.Slug,
-                Description = categorie.Description,
-                ParentcategorieId = categorie.ParentcategorieId,
-                ImageUrl = categorie.ImageUrl,
-                IsActive = categorie.IsActive,
-                DisplayOrder = categorie.DisplayOrder
-            };
-
-            return (createdDto, null);
-        }
-
-        public async Task<(bool Success, string? ErrorMessage)> UpdateAsync(Guid id, CreatecategorieDto categorieDto)
-        {
-            var existingcategorie = await _categorieRepository.GetByIdAsync(id);
-            if (existingcategorie == null)
-            {
-                return (false, "Kategorie nicht gefunden.");
-            }
-
-            var categorieWithSameSlug = await _categorieRepository.GetBySlugAsync(categorieDto.Slug);
-            if (categorieWithSameSlug != null && categorieWithSameSlug.Id != id)
-            {
-                return (false, "Eine andere Kategorie mit diesem Slug existiert bereits.");
-            }
-
-            existingcategorie.Name = categorieDto.Name;
-            existingcategorie.Slug = categorieDto.Slug;
-            existingcategorie.Description = categorieDto.Description;
-            existingcategorie.ParentcategorieId = categorieDto.ParentcategorieId;
-            existingcategorie.ImageUrl = categorieDto.ImageUrl;
-            existingcategorie.IsActive = categorieDto.IsActive;
-            existingcategorie.DisplayOrder = categorieDto.DisplayOrder;
-            existingcategorie.LastModifiedDate = DateTimeOffset.UtcNow;
-
-            await _categorieRepository.UpdateAsync(existingcategorie);
-            return (true, null);
-        }
-
-        public async Task<bool> DeleteAsync(Guid id)
-        {
-            var categorie = await _categorieRepository.GetByIdAsync(id);
-            if (categorie == null) return false;
-
-            await _categorieRepository.DeleteAsync(id);
-            return true;
-        }
     }
 }

Webshop.Application/Services/Admin/Interfaces/IAdminCategorieService.cs

@@ -2,6 +2,7 @@
 using System;
 using System.Collections.Generic;
 using System.Threading.Tasks;
+using Webshop.Application; // << HINZUF<55>GEN >>
 using Webshop.Application.DTOs.Categorie;
 
 namespace Webshop.Application.Services.Admin
@@ -10,8 +11,8 @@ namespace Webshop.Application.Services.Admin
     {
         Task<IEnumerable<CategorieDto>> GetAllAsync();
         Task<CategorieDto?> GetByIdAsync(Guid id);
-        Task<(CategorieDto? Createdcategorie, string? ErrorMessage)> CreateAsync(CreatecategorieDto categorieDto);
+        Task<ServiceResult<CategorieDto>> CreateAsync(CreatecategorieDto categorieDto);
-        Task<(bool Success, string? ErrorMessage)> UpdateAsync(Guid id, CreatecategorieDto categorieDto);
+        Task<ServiceResult> UpdateAsync(UpdatecategorieDto categorieDto); // << DTO-TYP GE<47>NDERT >>
-        Task<bool> DeleteAsync(Guid id);
+        Task<ServiceResult> DeleteAsync(Guid id);
     }
 }