Пример #1
0
        public async Task <IActionResult> Post(
            string type,
            int id,
            [FromBody] Comment comment,
            [FromQuery(Name = "token")] string token)
        {
            // 先评论是否有正文
            // 再检查Token是否有效
            // 再检查评论类型
            // 再检查文章/评论是否存在
            int     replyCommentId = 0;
            Comment commentResult  = null;

            ModelResult <CommentInfo> result = TokenUtils.CheckToken <CommentInfo>(token, _context);

            if (result != null)
            {
                return(BadRequest(result));
            }

            if (comment.Content == null || comment.CommentId != 0)
            {
                result = new ModelResult <CommentInfo>(400, new CommentInfo(comment), "Invalid Comment");
                return(BadRequest(result));
            }

            comment.PublishDate = DateTime.Now;

            if (type == "article" || type == "reply")
            {
                Article articleResult;
                if (type == "article")
                {
                    if (comment.ArticleId == 0)
                    {
                        comment.ArticleId = id;
                    }
                    if (id == 0)
                    {
                        id = comment.ArticleId;
                    }

                    articleResult = await _context.Articles
                                    .FirstOrDefaultAsync(a => a.ArticleId == id);
                }
                else // if (type == "reply")
                {
                    commentResult = await _context.Comments
                                    .FirstOrDefaultAsync(c => c.CommentId == id);

                    if (commentResult == null)
                    {
                        result = new ModelResult <CommentInfo>(404, null, "Comment to Reply Not Exists");
                        return(BadRequest(result));
                    }

                    replyCommentId = commentResult.CommentId;
                    articleResult  = await _context.Articles
                                     .FirstOrDefaultAsync(a => a.ArticleId == commentResult.ArticleId);

                    comment.ArticleId = articleResult.ArticleId;
                }

                Session sessionResult = await _context.Sessions
                                        .FirstOrDefaultAsync(s => s.SessionToken == token);

                if (articleResult == null)
                {
                    result = new ModelResult <CommentInfo>(404, null, "Article Not Exists");
                    return(BadRequest(result));
                }

                comment.UserId = sessionResult.SessionUserId;
                comment.User   = await _context.Users
                                 .FirstOrDefaultAsync(u => u.UserId == comment.UserId);

                comment.ArticleId = id;
                comment.Article   = articleResult;

                await _context.AddAsync(comment);

                await _context.SaveChangesAsync();

                result = new ModelResult <CommentInfo>(201, new CommentInfo(comment), "Commented");
            }
            else
            {
                result = new ModelResult <CommentInfo>(405, null, "Undefined Comment Type");
                return(BadRequest(result));
            }

            if (type == "reply" && replyCommentId != 0)
            {
                await _context.AddAsync(new CommentReply
                {
                    CommentId        = comment.CommentId,
                    RepliedCommentId = replyCommentId
                });

                await _context.SaveChangesAsync();

                result.Message = "Replied";
            }

            int noticeUserId = 0;

            if (type == "article")
            {
                noticeUserId = comment.UserId;
            }
            else
            {
                if (commentResult != null)
                {
                    noticeUserId = commentResult.UserId;
                }
            }

            await NoticeUtils.CreateCommentNotice(comment, _context, noticeUserId, type);

            return(Ok(result));
        }