Add one long hierarchical method, change some return codes

T120B165-ImgBoard/Controllers/AuthController.cs

@@ -21,6 +21,7 @@ public class AuthController(UserManager<User> userManager, ITokenService tokenSe
     [HttpPost("register")]
     [ProducesResponseType(StatusCodes.Status200OK)]
     [ProducesResponseType(StatusCodes.Status400BadRequest)]
+    [ProducesResponseType(StatusCodes.Status422UnprocessableEntity)]
     public async Task<ActionResult<SlimUserDto>> Register(RegisterDto dto)
     {
         var user = new User
@@ -31,9 +32,18 @@ public class AuthController(UserManager<User> userManager, ITokenService tokenSe
         
         var result = await userManager.CreateAsync(user, dto.Password);
         await userManager.AddToRoleAsync(user, UserRoles.Regular);
+
+        Dictionary<string, object> idk = new()
+        {
+            ["errors"] = result.Errors
+        };
+
         if (!result.Succeeded)
         {
-            return BadRequest(result.Errors);
+            return Problem(
+                statusCode: StatusCodes.Status422UnprocessableEntity,
+                extensions: idk
+            );
         }
         return Ok(SlimUserDto.FromUser(user));
     }
@@ -46,6 +56,7 @@ public class AuthController(UserManager<User> userManager, ITokenService tokenSe
     /// <response code="401">If the credentials are incorrect</response>
     [HttpPost("login")]
     [ProducesResponseType(StatusCodes.Status200OK)]
+    [ProducesResponseType(StatusCodes.Status400BadRequest)]
     [ProducesResponseType(StatusCodes.Status401Unauthorized)]
     public async Task<ActionResult<TokenDto>> Login(LoginDto dto)
     {
@@ -66,6 +77,7 @@ public class AuthController(UserManager<User> userManager, ITokenService tokenSe
     /// <response code="401">If refresh token is missing or is expired</response>
     [HttpPost("refresh")]
     [ProducesResponseType(StatusCodes.Status200OK)]
+    [ProducesResponseType(StatusCodes.Status400BadRequest)]
     [ProducesResponseType(StatusCodes.Status401Unauthorized)]
     public async Task<ActionResult<TokenDto>> Refresh(RefreshDto dto)
     {
@@ -88,6 +100,7 @@ public class AuthController(UserManager<User> userManager, ITokenService tokenSe
     /// <response code="401">If refresh token is missing or is expired</response>
     [HttpPost("revoke")]
     [ProducesResponseType(StatusCodes.Status204NoContent)]
+    [ProducesResponseType(StatusCodes.Status400BadRequest)]
     [ProducesResponseType(StatusCodes.Status401Unauthorized)]
     public async Task<ActionResult<TokenDto>> Revoke(RefreshDto dto)
     {

T120B165-ImgBoard/Controllers/PostController.cs

@@ -102,7 +102,7 @@ public class PostController(
             if (tag == null)
                 return Problem(
                     detail: $"'{tagName}' is not a valid tag",
-                    statusCode: StatusCodes.Status400BadRequest
+                    statusCode: StatusCodes.Status422UnprocessableEntity
                 );
             tags.Add(tag);
         }
@@ -123,6 +123,7 @@ public class PostController(
     [ProducesResponseType(StatusCodes.Status400BadRequest)]
     [ProducesResponseType(StatusCodes.Status401Unauthorized)]
     [ProducesResponseType(StatusCodes.Status403Forbidden)]
+    [ProducesResponseType(StatusCodes.Status422UnprocessableEntity)]
     public async Task<ActionResult<PostDto>> Create(CreatePostDto dto)
     {
         var userId = HttpContext.User.Claims.First(c => c.Type == ClaimTypes.NameIdentifier).Value;
@@ -172,7 +173,9 @@ public class PostController(
     [ProducesResponseType(StatusCodes.Status401Unauthorized)]
     [ProducesResponseType(StatusCodes.Status403Forbidden)]
     [ProducesResponseType(StatusCodes.Status404NotFound)]
+    [ProducesResponseType(StatusCodes.Status409Conflict)]
     [ProducesResponseType(StatusCodes.Status415UnsupportedMediaType)]
+    [ProducesResponseType(StatusCodes.Status422UnprocessableEntity)]
     public async Task<IActionResult> PatchFileContent(int postId, int fileId)
     {
         var post = await postService.GetById(postId, includeUnfinished: true);
@@ -186,7 +189,7 @@ public class PostController(
         if (userId != post.Author.Id) return Forbid();
 
         if (fileRecord.FinishedDate != null)
-            return Problem(statusCode: StatusCodes.Status400BadRequest,
+            return Problem(statusCode: StatusCodes.Status409Conflict,
                 detail: "File was already uploaded.");
 
         // Parse the Content-Range Header
@@ -204,7 +207,7 @@ public class PostController(
         if (totalSizeFromHeader != totalSize)
         {
             return Problem(
-                statusCode: StatusCodes.Status400BadRequest,
+                statusCode: StatusCodes.Status422UnprocessableEntity,
                 detail: $"Total file size mismatch. Expected: {totalSize} bytes, Received: {totalSizeFromHeader} bytes."
             );
         }
@@ -383,6 +386,7 @@ public class PostController(
     [ProducesResponseType(StatusCodes.Status401Unauthorized)]
     [ProducesResponseType(StatusCodes.Status403Forbidden)]
     [ProducesResponseType(StatusCodes.Status404NotFound)]
+    [ProducesResponseType(StatusCodes.Status422UnprocessableEntity)]
     public async Task<ActionResult<PostDto>> Update(int id, EditPostDto dto)
     {
         var post = await postService.GetById(id);
@@ -550,6 +554,7 @@ public class PostController(
     [ProducesResponseType(StatusCodes.Status401Unauthorized)]
     [ProducesResponseType(StatusCodes.Status403Forbidden)]
     [ProducesResponseType(StatusCodes.Status404NotFound)]
+    [ProducesResponseType(StatusCodes.Status422UnprocessableEntity)]
     public async Task<ActionResult<CommentDto>> Update(int postId, int commentId, EditCommentDto dto)
     {
         var post = await postService.GetById(postId);

T120B165-ImgBoard/Controllers/TagController.cs

@@ -1,6 +1,6 @@
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
-using T120B165_ImgBoard.Dtos;
+using T120B165_ImgBoard.Dtos.Comment;
 using T120B165_ImgBoard.Dtos.Tag;
 using T120B165_ImgBoard.Models;
 using T120B165_ImgBoard.Services;
@@ -10,7 +10,10 @@ namespace T120B165_ImgBoard.Controllers;
 
 [ApiController]
 [Route("api/tags")]
-public class TagController(ITagService tagService) : ControllerBase
+public class TagController(
+    ITagService tagService,
+    IPostService postService,
+    ICommentService commentService) : ControllerBase
 {
     /// <summary>
     /// Creates a new tag.
@@ -126,4 +129,34 @@ public class TagController(ITagService tagService) : ControllerBase
         var updatedTag = await tagService.Update(tag, dto.Type);
         return Ok(updatedTag);
     }
+    
+    
+    /// <summary>
+    /// Get specific tag, specific post comment.
+    /// </summary>
+    /// <param name="tagName">Tag name</param>
+    /// <param name="postId">Post ID</param>
+    /// <param name="commentId">Comment ID</param>
+    /// <response code="200">Comment data</response>
+    /// <response code="400">If request is malformed</response>
+    /// <response code="404">If tag or post or comment is not found</response>
+    [HttpGet("{tagName}/posts/{postId:int}/comments/{commentId:int}")]
+    [ProducesResponseType(StatusCodes.Status200OK)]
+    [ProducesResponseType(StatusCodes.Status400BadRequest)]
+    [ProducesResponseType(StatusCodes.Status404NotFound)]
+    public async Task<ActionResult<CommentDto>> GetComment(string tagName, int postId, int commentId)
+    {
+        var tag = await tagService.GetByName(tagName);
+        if (tag == null) return NotFound();
+        
+        var entry = await postService.GetById(postId);
+        if (entry == null) return NotFound();
+        
+        if (entry.Tags.All(t => t.Name != tag.Name)) return NotFound();
+        
+        var comment = await commentService.GetById(commentId);
+        if (comment == null || entry.Id != comment.OriginalPost.Id) return NotFound();
+        
+        return Ok(CommentDto.FromComment(comment));
+    }
 }