fix: allow for image deletion (by leaving blank url)

allows unauthenticated users to select a category for random draw

.gitignore

@@ -417,3 +417,6 @@ FodyWeavers.xsd
 # ----------
 # Files storing credentials
 appsettings.json
+
+# User uploads
+wwwroot/uploads/images

Controllers/CategoryController.cs

@@ -80,20 +80,21 @@ public class CategoryController : ControllerBase
 
     // GET /api/v1/categories
     /// <summary>
-    /// [AUTHED] Get every category
+    /// Get every category
     /// </summary>
     /// <remarks>
-    /// Can (and will) return an empty list if no categories are found in DB. <br/>
+    /// Can (and will) return an empty list if no categories are found in DB. <br/><br/>
-    /// Unlike GET /api/v1/categories/page/..., requires authorization with a JWT.
+    /// <s>Unlike GET /api/v1/categories/page/..., requires authorization with a JWT.</s>
+    /// Not the case anymore, as choosing a quote from a category requires the user to know
+    /// of existing categories.<br/><br/>
     /// Has CORS set.
     /// </remarks>
     /// <response code="200">Returned on valid request</response>
     // /// <response code="404">Returned when there are no categories to list</response>
     [HttpGet]
-    [Authorize]
     [EnableCors]
     [ProducesResponseType(typeof(List<CategoryShortDTO>), 200)]
-    public async Task<IActionResult> GetQuotePage()
+    public async Task<IActionResult> GetEveryCategory()
     {
         // The following seems to be a bad idea, so I leave it as is. ~eee4
         // 

Controllers/GeneralUseHelperFunctions.cs

@@ -139,7 +139,7 @@ public class GeneralUseHelpers(ApplicationDbContext db, IConfiguration appsettin
     {
 
         string           _model = model ?? _appsettings.GetSection("LlmIntegration")["DefaultModel"] ?? "deepclaude";
-        float             _temp = temp ?? 0.6f; // sane default
+        float             _temp = temp ?? 0.8f; // sane default
         string _included_sample = string.Empty;
         string          _prompt = prompt ?? _appsettings.GetSection("LlmIntegration")["DefaultPrompt"] ??
                                     "Cześć, czy jesteś w stanie wymyślić i stworzyć jeden oryginalny cytat? " +
@@ -233,7 +233,12 @@ public class GeneralUseHelpers(ApplicationDbContext db, IConfiguration appsettin
             else
             {
                 // Handle the error
+                JObject error = JObject.Parse(await response.Content.ReadAsStringAsync());
                 Console.WriteLine($"[QuotifyBE] Error: response status code from API was {response.StatusCode}.");
+                if (error != null && error["error"] != null && error["error"]!["message"] != null)
+                {
+                    Console.WriteLine($"            Error message: {error["error"]!["message"]}");
+                }
                 return null;
             }
         }

Controllers/QuoteController.cs

@@ -20,11 +20,13 @@ public class QuotesController : ControllerBase
 
     private readonly ApplicationDbContext _db;
     private readonly GeneralUseHelpers guhf;
+    private readonly IConfiguration _appsettings;
 
-    public QuotesController(ApplicationDbContext db, GeneralUseHelpers GUHF)
+    public QuotesController(ApplicationDbContext db, GeneralUseHelpers GUHF, IConfiguration appsettings)
     {
         _db = db;
         guhf = GUHF;
+        _appsettings = appsettings;
     }
 
     // GET /api/v1/quotes
@@ -46,7 +48,7 @@ public class QuotesController : ControllerBase
     /// <response code="404">Returned when requested page is invalid (page_no &lt;= 0)</response>
     [HttpGet("page/{page_no}")]
     [EnableCors]
-    [ProducesResponseType(typeof(List<QuoteShortDTO>), 200)]
+    [ProducesResponseType(typeof(List<QuoteCompleteDTO>), 200)]
     [ProducesResponseType(typeof(ErrorDTO), 404)]
     public async Task<IActionResult> GetQuotePage(int page_no = 1, string? sort = "desc", [FromQuery] string? category_id = null)
     {
@@ -113,7 +115,7 @@ public class QuotesController : ControllerBase
         }
 
         var result = pageQuotes
-            .Select(q => q.ToQuoteShortDTO())
+            .Select(q => q.ToQuoteCompleteDTO())
             .ToList();
 
         return Ok(result);
@@ -125,15 +127,14 @@ public class QuotesController : ControllerBase
     /// [AUTHED] Get specified quote summary
     /// </summary>
     /// <remarks>
-    /// As per project's guidelines, requires a JWT.
+    /// <s>As per project's guidelines, requires a JWT.</s> We need this endpoint to check previous draws for draw history.
     /// </remarks>
     /// <param name="id">The quote id in question</param>
     /// <returns>A quote: id, quote content and author, imageUrl and categories if successful, otherwise: error message</returns>
     /// <response code="200">Returned on valid request</response>
     /// <response code="404">Returned when quote id is invalid or simply doesn't exist</response>
     [HttpGet("{id}")]
-    [Authorize]
+    [ProducesResponseType(typeof(QuoteCompleteDTO), 200)]
-    [ProducesResponseType(typeof(QuoteShortDTO), 200)]
     [ProducesResponseType(typeof(ErrorDTO), 404)]
     public async Task<IActionResult> GetQuoteById(int id)
     {
@@ -148,7 +149,7 @@ public class QuotesController : ControllerBase
         if (quote == null)
             return NotFound(new { status = "error", error_msg = "Quote not found" });
 
-        return Ok(quote.ToQuoteShortDTO());
+        return Ok(quote.ToQuoteCompleteDTO());
     }
 
     // POST /api/v1/quotes/new
@@ -386,6 +387,7 @@ public class QuotesController : ControllerBase
         // Try to find the quote in question
         Quote? quote = await _db.Quotes
             .Include(q => q.QuoteCategories)
+            .Include(q => q.Image)
             .FirstOrDefaultAsync(q => q.Id == id);
 
         // Failed?
@@ -536,6 +538,8 @@ public class QuotesController : ControllerBase
             request.CustomPrompt, request.Model, request.Temperature, request.CategoryId, request.UseSampleQuote
         );
 
+        string llmUsed = request.Model ?? _appsettings.GetSection("LlmIntegration")["DefaultModel"] ?? "deepclaude";
+
         // Check if any errors occurred
         if (generatedResponse == null)
         {
@@ -550,7 +554,7 @@ public class QuotesController : ControllerBase
             return StatusCode(500, new ErrorDTO { Status = "error", Error_msg = "Unexpected API response" });
 
         // Otherwise, return the response
-        return Ok(new { Status = "ok", BotResponse = llmResponse });
+        return Ok(new { Status = "ok", BotResponse = llmResponse, Model = llmUsed });
     }
 
 }

Controllers/UserContentController.cs

@@ -20,6 +20,7 @@ public class UserContentController : ControllerBase
     private readonly IConfiguration _appsettings;
     private readonly ApplicationDbContext _db;
     private readonly GeneralUseHelpers guhf;
+    List<string> _allowedExtensions = new List<string>() { ".jpg", ".jpeg", ".jfif", ".png", ".gif", ".avif", ".webp" };
 
     public UserContentController(IConfiguration appsettings, ApplicationDbContext db, GeneralUseHelpers GUHF)
     {
@@ -37,7 +38,7 @@ public class UserContentController : ControllerBase
     /// Requires authorization with a JWT, has CORS set.
     /// </remarks>
     /// <response code="200">Returned on valid request</response>
-    [HttpGet]
+    [HttpGet("images")]
     [Authorize]
     [EnableCors]
     [ProducesResponseType(typeof(List<Image>), 200)]
@@ -60,59 +61,183 @@ public class UserContentController : ControllerBase
     /// </summary>
     /// <remarks>
     /// Allows authorized users to publish images.
-    /// A user-reachable path is returned on success.<br/>
+    /// A user-reachable path and image id is returned on success.<br/>
     /// </remarks>
     /// <response code="200">Returned on valid request</response>
-    /// <response code="400">Returned when file extension is unknown</response>
+    /// <response code="400">Returned when request does not contain a file or the file is blank</response>
-    /// <response code="406">Returned when request does not follow user-provided config</response>
+    /// <response code="413">Returned when image size is too large</response>
-    [HttpPost]
+    /// <response code="415">Returned when file extension/mimetype is unknown</response>
+    [HttpPost("images")]
     [Authorize]
     [EnableCors]
     [ProducesResponseType(200)]
     [ProducesResponseType(typeof(ErrorDTO), 400)]
-    [ProducesResponseType(typeof(ErrorDTO), 406)]
+    [ProducesResponseType(typeof(ErrorDTO), 413)]
+    [ProducesResponseType(typeof(ErrorDTO), 415)]
     public IActionResult PostNewImage(IFormFile file)
     {
-
+        // Obsługa braku pliku
-        // Ideally, a hash of the file would be stored somewhere
+        if (file == null || file.Length == 0)
-        // in the database to have a basic redundancy check,
+        {
-        // but this will do for now. ~eee4
+            return BadRequest(new ErrorDTO
-
+            {
-        // A good idea would be to also check the Content-Type
-        // of submitted files. ~eee4
-
-        List<string> allowedExtensions = new List<string>() { ".jpg", ".jpeg", ".jfif", ".png", ".gif", ".avif", ".webp" };
-
-        string fileExtension = Path.GetExtension(file.FileName);
-        if (!allowedExtensions.Contains(fileExtension.ToLower())) {
-            return BadRequest(new ErrorDTO {
                 Status = "error",
-                Error_msg = $"Unknown file extension. Please use one of the following: {string.Join(", ", allowedExtensions)}"
+                Error_msg = "No file was uploaded."
             });
         }
 
-        // TODO:
+        // Dozwolone rozszerzenia
-        // https://www.youtube.com/watch?v=6-FNejMrVuk
+        string fileExtension = Path.GetExtension(file.FileName).ToLower();
 
-        // Sprawdź, czy plik spełnia ograniczenia:
+        if (!_allowedExtensions.Contains(fileExtension))
-        // 1. Czy rozmiar jest mniejszy od _appsettings["UserContent"]["MaxFileSize"] ?
+        {
+            return StatusCode(415, new ErrorDTO
+            {
+                Status = "error",
+                Error_msg = $"Unknown file extension. Allowed: {string.Join(", ", _allowedExtensions)}"
+            });
+        }
 
+        // Sprawdzenie typu MIME (opcjonalnie dokładniejsze)
+        if (!file.ContentType.StartsWith("image/"))
+        {
+            return StatusCode(415, new ErrorDTO
+            {
+                Status = "error",
+                Error_msg = "Uploaded file is not an image."
+            });
+        }
 
-        // Jeśli nie, zwróć ErrorDTO ze wiadomością: $"File size exceeds {_appsettings["UserContent"]["MaxFileSize"]}"
+        // Ograniczenie rozmiaru pliku do tego, ustawionego przez użytkownika
+        int MaxFileSize = int.TryParse(_appsettings.GetSection("UserContent")["MaxFileSize"], out int r)
+            ? r
+            : 5 * 1024 * 1024;
+        if (file.Length > MaxFileSize)
+        {
+            return StatusCode(413, new ErrorDTO
+            {
+                Status = "error",
+                Error_msg = $"File size exceeds {MaxFileSize / 1024 / 1024} MB."
+            });
+        }
 
+        // Generowanie unikalnej nazwy
+        string uniqueFileName = $"{Guid.NewGuid()}{fileExtension}";
+        string relativePath = $"/uploads/images/{uniqueFileName}";
+        string absolutePath = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot", "uploads", "images", uniqueFileName);
 
-        // Zapisz plik na dysku z pseudolosową nazwą GUID
+        // Upewnij się, że katalog istnieje
+        Directory.CreateDirectory(Path.GetDirectoryName(absolutePath)!);
 
+        // Zapis pliku na dysk
+        using (var stream = new FileStream(absolutePath, FileMode.Create))
+        {
+            file.CopyTo(stream);
+        }
 
-        // Wrzucić go do folderu "uploads/images/"
+        // Dodaj do bazy
+        Image image = new Image { Url = relativePath };
+        _db.Images.Add(image);
+        _db.SaveChanges();
 
+        // Zwracany adres URL (np. do użytku w cytacie)
+        return Ok(new
+        {
+            Status = "ok",
+            Filepath = relativePath,
+            ImageId = image.Id
+        });
+    }
 
-        // Stwórz URL postaci: "/uploads/images/<nazwa pliku>.<rozszerzenie>"
+    // GET /api/v1/uc/restrictions
+    /// <summary>
+    /// [AUTHED] Get server restrictions for file upload
+    /// </summary>
+    /// <remarks>
+    /// Returns a list of allowed file extensions and mimetypes for upload.
+    /// </remarks>
+    /// <response code="200">Returned on valid request</response>
+    [HttpGet("restrictions")]
+    [Authorize]
+    [EnableCors]
+    [ProducesResponseType(200)]
+    public IActionResult GetFileUploadRestrictions()
+    {
+        return Ok(new
+        {
+            Status = "ok",
+            AllowedMimeTypes = new List<string>
+            {
+                "image/" // this could be done dynamically ~eee4
+            },
+            AllowedExtensions = _allowedExtensions,
+            MaxFileSize = int.TryParse(_appsettings.GetSection("UserContent")["MaxFileSize"], out int r)
+            ? r
+            : 5 * 1024 * 1024
+    });
+    }
 
+    // DELETE /api/v1/uc/images/{id}
+    /// <summary>
+    /// [AUTHED] Delete an image
+    /// </summary>
+    /// <remarks>
+    /// Deletes an image, granted it exists.
+    /// <br/><br/>
+    /// <b>Note</b>:
+    /// If the image is a file on disk, it's also deleted. 
+    /// <br/><br/>
+    /// <b>Warning</b>:
+    /// Any reference to deleted image in Quotes table will also be deleted (nullified).
+    /// </remarks>
+    /// <returns>Json with status</returns>
+    /// <param name="id">Image id which will be deleted</param>
+    /// <response code="200">Returned on valid request</response>
+    /// <response code="404">Returned when no such image exists</response>
+    [HttpDelete("images/{id}")]
+    [Authorize]
+    [EnableCors]
+    [ProducesResponseType(200)]
+    [ProducesResponseType(typeof(ErrorDTO), 404)]
+    public async Task<IActionResult> DeleteImage(int id)
+    {
+        // (Attempt to) find the image
+        Image? image = await _db.Images
+                            .FirstOrDefaultAsync(q => q.Id == id);
+        // Failed?
+        if (image == null)
+            return NotFound(new { status = "error", error_msg = "Image not found" });
 
-        // Zwróć powyższy URL
+        // If succeded, remove the image:
-        return Ok(new { Status = "ok", Filepath = "miejsce na wspomniany URL" });
+        // - from disk - if saved locally
+        if (!string.IsNullOrEmpty(image.Url)) {
+            if (image.Url.StartsWith("/uploads/images/")) {
+                // delete from disk
+                int fileNameStart = image.Url.LastIndexOf('/');
+                string uniqueFileName = image.Url.Substring(fileNameStart + 1);
+                string absolutePath = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot", "uploads", "images", uniqueFileName);
+                System.IO.File.Delete(absolutePath);
+            }
+        }
 
+        // - from db
+        //    - first, from any quotes that reference it
+        List<Quote> quotesToModify = await _db.Quotes
+                                            .Include(q => q.Image)
+                                            .Where(q => q.Image == image)
+                                            .ToListAsync();
+
+        foreach (Quote quote in quotesToModify)
+        {
+            quote.Image = null;
+        }
+
+        //    - finally, from images table
+        _db.Images.Remove(image);
+        await _db.SaveChangesAsync();
+
+        // Return ok
+        return Ok(new { Status = "ok" });
     }
 
 }

DTOs/AskLLMInDTO.cs

@@ -2,8 +2,8 @@ namespace QuotifyBE.DTOs;
 
 public record class AskLLMInDTO
 {
-    public string? CustomPrompt { get; set; }
+    public string? CustomPrompt { get; set; } = null;
-    public string? Model { get; set; } = "deepclaude";
+    public string? Model { get; set; } = null;
     public float? Temperature { get; set; } = 0.8f;
     public int? CategoryId { get; set; } = null;
     public bool? UseSampleQuote { get; set; } = false;

DTOs/QuoteCompleteDTO.cs

@@ -0,0 +1,14 @@
+namespace QuotifyBE.DTOs;
+
+public record class QuoteCompleteDTO
+{
+    public int Id { get; set; }
+    public string Text { get; set; } = string.Empty;
+    public string Author { get; set; } = string.Empty;
+    public string? ImageUrl { get; set; }
+    public List<string>? Categories { get; set; } = new();
+    public DateTime? createDate { get; set; }
+    public DateTime? updateDate { get; set; }
+
+};
+

Mapping/QuoteMapping.cs

@@ -29,4 +29,28 @@ public static class QuoteMapping
             Categories = categoryNames
         };
     }
+
+    public static QuoteCompleteDTO ToQuoteCompleteDTO(this Quote quote)
+    {
+
+        List<string> categoryNames = [];
+        if (quote.QuoteCategories != null)
+        {
+            foreach (QuoteCategory quoteCategory in quote.QuoteCategories)
+            {
+                categoryNames.Add(quoteCategory.Category!.Name ?? $"Unnamed category {quoteCategory.CategoryId}");
+            }
+        }
+
+        return new QuoteCompleteDTO
+        {
+            Id = quote.Id,
+            Text = quote.Text,
+            Author = quote.Author,
+            ImageUrl = quote.Image?.Url,
+            Categories = categoryNames,
+            createDate = quote.CreatedAt,
+            updateDate = quote.LastUpdatedAt
+        };
+    }
 }

Program.cs

@@ -151,5 +151,5 @@ app.UseAuthentication();
 app.UseAuthorization();
 
 app.MapControllers();
-
+app.UseStaticFiles();
 app.Run();

QuotifyBE.csproj

@@ -37,7 +37,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <Folder Include="uploads\images\" />
+    <Folder Include="wwwroot\uploads\images\" />
   </ItemGroup>
 
 </Project>