glz
8291b82362
本次提交包含多项核心更新：
1. 重构宠物模块数据结构：拆分皮肤图片为独立表，优化Pet、PetEvolution实体，调整字段类型与冗余字段
2. 新增宠物皮肤图片管理表，支持多进化阶段多图片展示
3. 完善宠物DTO，新增当前形态名称、皮肤信息与图片序列返回
4. 新增社区功能模块：
- 微信端社区Feed流、点赞/取消点赞接口
- 后台社区消息管理接口与服务实现
5. 优化商城与背包模块，替换皮肤图片获取逻辑为从新表读取预览图
6. 重构勋章服务，新增规则校验逻辑
7. 调整命名规范，修复原有控制器命名问题
297 lines
9.6 KiB
C#
297 lines
9.6 KiB
C#
using Microsoft.Extensions.Logging;
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using QYZH.InteractiveMagazine.IService;
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using QYZH.InteractiveMagazine.Models.Common;
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using QYZH.InteractiveMagazine.Models.Dto;
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using QYZH.InteractiveMagazine.Models.Entity;
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using QYZH.InteractiveMagazine.Repository;
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using SqlSugar;
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namespace QYZH.InteractiveMagazine.Service;
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/// <summary>
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/// 社区微信端服务实现
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/// </summary>
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public class WeChatCommunityService(
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BaseRepository<CommunityMessage> messageRepository,
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ILogger<WeChatCommunityService> logger)
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: BaseRepository<CommunityMessage>, IWeChatCommunityService
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{
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private const int FeaturedCount = 5;
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private const int NormalCount = 5;
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/// <summary>
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/// 获取社区Feed流（翻页）
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/// </summary>
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public async Task<WxFeedOutput> GetFeedAsync(long userId, long? cursor)
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{
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logger.LogInformation("正在获取社区Feed，用户ID: {UserId}, Cursor: {Cursor}", userId, cursor);
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var journalIds = await GetUserJournalIds(userId);
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if (!journalIds.Any())
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{
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return new WxFeedOutput { Messages = new List<WxFeedMessageOutput>(), HasMore = false };
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}
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// 查询精选消息
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var featuredQuery = messageRepository.Queryable()
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.Where(m => journalIds.Contains(m.JournalId)
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&& m.Status == 1
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&& m.IsActive
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&& m.UserId != userId
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&& m.IsFeatured == 1);
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// 查询普通消息
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var normalQuery = messageRepository.Queryable()
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.Where(m => journalIds.Contains(m.JournalId)
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&& m.Status == 1
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&& m.IsActive
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&& m.UserId != userId
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&& m.IsFeatured == 0);
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// 游标分页：按ID降序（ID越大越新）
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if (cursor.HasValue)
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{
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featuredQuery = featuredQuery.Where(m => m.Id < cursor.Value);
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normalQuery = normalQuery.Where(m => m.Id < cursor.Value);
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}
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var featured = await featuredQuery
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.OrderByDescending(m => m.SortOrder)
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.Take(FeaturedCount)
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.ToListAsync();
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var normal = await normalQuery
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.OrderByDescending(m => m.SortOrder)
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.Take(NormalCount)
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.ToListAsync();
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// 混排
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var mixed = MixMessages(featured, normal);
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// 查询当前用户点赞状态
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var messageIds = mixed.Select(m => m.Id).ToList();
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var likedIds = await GetLikedMessageIds(userId, messageIds);
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var output = mixed.Select(m => new WxFeedMessageOutput
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{
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Id = m.Id,
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JournalId = m.JournalId,
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UserId = m.UserId,
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Content = m.Content,
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ImageUrl = m.ImageUrl,
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Type = m.Type,
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LikeCount = m.LikeCount,
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IsFeatured = m.IsFeatured,
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IsLiked = likedIds.Contains(m.Id),
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CreatedAt = m.CreatedAt
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}).ToList();
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var nextCursor = mixed.Any() ? mixed.Min(m => m.Id) : (long?)null;
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var hasMore = featured.Count >= FeaturedCount || normal.Count >= NormalCount;
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return new WxFeedOutput
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{
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Messages = output,
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NextCursor = hasMore ? nextCursor : null,
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HasMore = hasMore
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};
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}
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/// <summary>
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/// 下拉刷新（重置游标，返回最新列表）
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/// </summary>
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public async Task<WxFeedOutput> RefreshFeedAsync(long userId)
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{
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logger.LogInformation("正在刷新社区Feed，用户ID: {UserId}", userId);
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return await GetFeedAsync(userId, null);
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}
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/// <summary>
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/// 点赞
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/// </summary>
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public async Task<WxLikeOutput> LikeAsync(long userId, WxLikeInput input)
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{
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logger.LogInformation("用户正在点赞，用户ID: {UserId}, 消息ID: {MessageId}", userId, input.MessageId);
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if (input.MessageId <= 0)
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{
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throw new BusinessException("消息ID无效", 400);
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}
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var message = await messageRepository.GetByIdAsync(input.MessageId);
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if (message == null)
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{
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throw new BusinessException("消息不存在", 404);
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}
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// 检查是否已点赞
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var existingLike = await Context.Queryable<CommunityMessageLike>()
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.Where(l => l.UserId == userId && l.MessageId == input.MessageId && l.Type == "Like")
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.FirstAsync();
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if (existingLike != null)
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{
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throw new BusinessException("您已点赞过该消息", 400);
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}
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// 插入点赞记录
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var like = new CommunityMessageLike
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{
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UserId = userId,
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MessageId = input.MessageId,
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Type = "Like",
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CreatedBy = "System",
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UpdatedBy = "System",
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CreatedAt = DateTime.Now,
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UpdatedAt = DateTime.Now,
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IsDeleted = false
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};
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var insertResult = await Context.Insertable(like).ExecuteCommandAsync();
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if (insertResult <= 0)
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{
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throw new BusinessException("点赞失败", 500);
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}
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// 更新点赞数
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await Context.Updateable<CommunityMessage>()
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.SetColumns(m => new CommunityMessage
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{
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LikeCount = m.LikeCount + 1,
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UpdatedAt = DateTime.Now
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})
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.Where(m => m.Id == input.MessageId)
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.ExecuteCommandAsync();
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logger.LogInformation("点赞成功，用户ID: {UserId}, 消息ID: {MessageId}", userId, input.MessageId);
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return new WxLikeOutput
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{
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MessageId = input.MessageId,
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LikeCount = message.LikeCount + 1,
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IsLiked = true
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};
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}
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/// <summary>
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/// 取消点赞
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/// </summary>
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public async Task<WxLikeOutput> UnlikeAsync(long userId, long messageId)
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{
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logger.LogInformation("用户正在取消点赞，用户ID: {UserId}, 消息ID: {MessageId}", userId, messageId);
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if (messageId <= 0)
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{
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throw new BusinessException("消息ID无效", 400);
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}
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var message = await messageRepository.GetByIdAsync(messageId);
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if (message == null)
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{
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throw new BusinessException("消息不存在", 404);
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}
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var existingLike = await Context.Queryable<CommunityMessageLike>()
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.Where(l => l.UserId == userId && l.MessageId == messageId && l.Type == "Like")
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.FirstAsync();
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if (existingLike == null)
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{
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throw new BusinessException("您尚未点赞过该消息", 400);
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}
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// 软删除点赞记录
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await Context.Updateable<CommunityMessageLike>()
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.SetColumns(l => new CommunityMessageLike { IsDeleted = true, UpdatedAt = DateTime.Now })
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.Where(l => l.Id == existingLike.Id)
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.ExecuteCommandAsync();
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// 更新点赞数（不小于0）
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var newLikeCount = Math.Max(0, message.LikeCount - 1);
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await Context.Updateable<CommunityMessage>()
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.SetColumns(m => new CommunityMessage
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{
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LikeCount = newLikeCount,
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UpdatedAt = DateTime.Now
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})
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.Where(m => m.Id == messageId)
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.ExecuteCommandAsync();
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logger.LogInformation("取消点赞成功，用户ID: {UserId}, 消息ID: {MessageId}", userId, messageId);
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return new WxLikeOutput
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{
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MessageId = messageId,
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LikeCount = newLikeCount,
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IsLiked = false
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};
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}
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#region 私有辅助方法
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/// <summary>
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/// 获取用户拥有的期刊ID列表
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/// </summary>
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private async Task<List<long>> GetUserJournalIds(long userId)
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{
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return await Context.Queryable<UserJournal>()
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.Where(uj => uj.UserId == userId && uj.Status == "Active")
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.Select(uj => uj.JournalId)
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.ToListAsync();
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}
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/// <summary>
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/// 获取当前用户已点赞的消息ID集合
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/// </summary>
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private async Task<HashSet<long>> GetLikedMessageIds(long userId, List<long> messageIds)
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{
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if (!messageIds.Any()) return new HashSet<long>();
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var likes = await Context.Queryable<CommunityMessageLike>()
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.Where(l => l.UserId == userId && messageIds.Contains(l.MessageId) && l.Type == "Like" && !l.IsDeleted)
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.Select(l => l.MessageId)
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.ToListAsync();
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return likes.ToHashSet();
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}
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/// <summary>
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/// 混排精选消息和普通消息（按权重随机插入）
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/// </summary>
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private static List<CommunityMessage> MixMessages(List<CommunityMessage> featured, List<CommunityMessage> normal)
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{
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var result = new List<CommunityMessage>();
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var allMessages = new List<(CommunityMessage msg, bool isFeatured)>();
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allMessages.AddRange(featured.Select(m => (m, true)));
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allMessages.AddRange(normal.Select(m => (m, false)));
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// 按SortOrder加权随机排序：SortOrder越大出现越靠前
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var random = new Random();
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while (allMessages.Any())
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{
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var totalWeight = allMessages.Sum(x => Math.Max(1, x.msg.SortOrder));
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var pick = random.Next(0, totalWeight + 1);
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var cumulative = 0;
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var selectedIndex = 0;
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for (var i = 0; i < allMessages.Count; i++)
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{
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cumulative += Math.Max(1, allMessages[i].msg.SortOrder);
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if (pick <= cumulative)
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{
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selectedIndex = i;
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break;
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}
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}
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result.Add(allMessages[selectedIndex].msg);
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allMessages.RemoveAt(selectedIndex);
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}
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return result;
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}
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#endregion
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}
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