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@@ -2,10 +2,10 @@
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using Microsoft.AspNetCore.Authorization;
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using Microsoft.AspNetCore.Authorization;
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using Microsoft.AspNetCore.Http;
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using Microsoft.AspNetCore.Http;
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.AspNetCore.Mvc;
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using System.IO;
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using System.Threading.Tasks;
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using System.Threading.Tasks;
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using Webshop.Application;
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using Webshop.Application.DTOs;
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using Webshop.Application.DTOs;
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using Webshop.Domain.Interfaces;
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using Webshop.Application.Services; // Namespace für den neuen Service
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namespace Webshop.Api.Controllers.Admin
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namespace Webshop.Api.Controllers.Admin
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{
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{
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@@ -14,34 +14,27 @@ namespace Webshop.Api.Controllers.Admin
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[Authorize(Roles = "Admin")]
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[Authorize(Roles = "Admin")]
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public class FileUploadController : ControllerBase
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public class FileUploadController : ControllerBase
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{
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{
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private readonly IFileStorageService _fileStorageService;
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private readonly IFileUploadService _fileUploadService;
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public FileUploadController(IFileStorageService fileStorageService)
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public FileUploadController(IFileUploadService fileUploadService)
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{
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{
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_fileStorageService = fileStorageService;
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_fileUploadService = fileUploadService;
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}
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}
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[HttpPost("upload")]
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[HttpPost("upload")]
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public async Task<ActionResult<FileUploadResultDto>> UploadImage(IFormFile file)
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[ProducesResponseType(typeof(FileUploadResultDto), StatusCodes.Status200OK)]
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[ProducesResponseType(typeof(ProblemDetails), StatusCodes.Status400BadRequest)]
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[ProducesResponseType(typeof(ProblemDetails), StatusCodes.Status500InternalServerError)]
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public async Task<IActionResult> UploadImage(IFormFile file)
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{
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{
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if (file == null || file.Length == 0)
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var result = await _fileUploadService.UploadFileAsync(file);
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return result.Type switch
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{
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{
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return BadRequest(new { Message = "Es wurde keine Datei hochgeladen." });
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ServiceResultType.Success => Ok(result.Value),
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}
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ServiceResultType.InvalidInput => BadRequest(new { Message = result.ErrorMessage }),
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_ => StatusCode(StatusCodes.Status500InternalServerError, new { Message = result.ErrorMessage ?? "Ein unerwarteter Fehler ist aufgetreten." })
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// Optional: Validierung des Dateityps
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};
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if (!file.ContentType.StartsWith("image/"))
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{
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return BadRequest(new { Message = "Nur Bilddateien sind erlaubt." });
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}
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// Öffne einen Stream aus der hochgeladenen Datei
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await using var stream = file.OpenReadStream();
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// Speichere die Datei mit dem Service und erhalte die URL
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var fileUrl = await _fileStorageService.SaveFileAsync(stream, file.FileName, file.ContentType);
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return Ok(new FileUploadResultDto { Url = fileUrl });
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}
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}
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}
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}
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}
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}
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46
Webshop.Application/Services/FileUploadService.cs
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46
Webshop.Application/Services/FileUploadService.cs
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@@ -0,0 +1,46 @@
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// src/Webshop.Application/Services/FileUploadService.cs
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using Microsoft.AspNetCore.Http;
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using System;
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using System.Threading.Tasks;
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using Webshop.Application.DTOs;
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using Webshop.Domain.Interfaces;
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namespace Webshop.Application.Services
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{
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public class FileUploadService : IFileUploadService
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{
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private readonly IFileStorageService _fileStorageService;
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public FileUploadService(IFileStorageService fileStorageService)
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{
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_fileStorageService = fileStorageService;
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}
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public async Task<ServiceResult<FileUploadResultDto>> UploadFileAsync(IFormFile file)
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{
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if (file == null || file.Length == 0)
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{
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return ServiceResult.Fail<FileUploadResultDto>(ServiceResultType.InvalidInput, "Es wurde keine Datei hochgeladen.");
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}
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if (!file.ContentType.StartsWith("image/"))
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{
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return ServiceResult.Fail<FileUploadResultDto>(ServiceResultType.InvalidInput, "Nur Bilddateien sind erlaubt.");
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}
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try
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{
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await using var stream = file.OpenReadStream();
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var fileUrl = await _fileStorageService.SaveFileAsync(stream, file.FileName, file.ContentType);
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var resultDto = new FileUploadResultDto { Url = fileUrl };
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return ServiceResult.Ok(resultDto);
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}
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catch (Exception ex)
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{
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// Hier könntest du den Fehler loggen (z.B. bei Festplattenproblemen)
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return ServiceResult.Fail<FileUploadResultDto>(ServiceResultType.Failure, $"Beim Speichern der Datei ist ein interner Fehler aufgetreten: {ex.Message}");
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}
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}
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}
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}
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18
Webshop.Application/Services/IFileUploadService.cs
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18
Webshop.Application/Services/IFileUploadService.cs
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@@ -0,0 +1,18 @@
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// src/Webshop.Application/Services/IFileUploadService.cs
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using Microsoft.AspNetCore.Http;
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using System.Threading.Tasks;
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using Webshop.Application;
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using Webshop.Application.DTOs;
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namespace Webshop.Application.Services
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{
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public interface IFileUploadService
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{
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/// <summary>
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/// Validiert und speichert eine hochgeladene Datei.
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/// </summary>
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/// <param name="file">Die per HTTP-Request hochgeladene Datei.</param>
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/// <returns>Ein ServiceResult, das bei Erfolg die URL der Datei enthält.</returns>
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Task<ServiceResult<FileUploadResultDto>> UploadFileAsync(IFormFile file);
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}
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}
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@@ -6,13 +6,6 @@ namespace Webshop.Domain.Interfaces
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{
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{
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public interface IFileStorageService
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public interface IFileStorageService
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{
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{
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/// <summary>
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/// Speichert eine Datei und gibt die öffentlich zugängliche URL zurück.
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/// </summary>
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/// <param name="fileStream">Der Stream der Datei.</param>
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/// <param name="fileName">Der ursprüngliche Dateiname (zur Ermittlung der Erweiterung).</param>
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/// <param name="contentType">Der MIME-Typ der Datei.</param>
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/// <returns>Die öffentliche URL der gespeicherten Datei.</returns>
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Task<string> SaveFileAsync(Stream fileStream, string fileName, string contentType);
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Task<string> SaveFileAsync(Stream fileStream, string fileName, string contentType);
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}
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}
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}
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}
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