258 lines
11 KiB
C#
258 lines
11 KiB
C#
using ClockSnowFlake;
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using dy.net.extension;
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using dy.net.model.dto;
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using dy.net.model.entity;
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using dy.net.model.response;
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using SqlSugar;
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namespace dy.net.repository
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{
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public class DouyinFollowRepository : BaseRepository<DouyinFollowed>
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{
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// 注入SQLSugar客户端
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public DouyinFollowRepository(ISqlSugarClient db) : base(db)
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{
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}
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public async Task<List<DouyinFollowGroupDto>> GetDouyinFollowGroup()
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{
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var data = this.Db.Queryable<DouyinFollowed>()
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.LeftJoin<DouyinCookie>((f, u) => f.mySelfId == u.MyUserId)
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//.Where((f, u) => u.Status == 1) // 注意：LeftJoin+u.Status==1 等价于 InnerJoin（u必须存在）
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.GroupBy((f, u) => f.mySelfId) // 按 mySelfId 分组
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.Select((f, u) => new DouyinFollowGroupDto
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{
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Key = f.mySelfId, // 分组键（mySelfId）
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Name = u.UserName, // 取每组的 UserName（因分组唯一，用 First() 兼容 SQL）
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Total = SqlFunc.AggregateCount(f.Id) // 统计每组的记录数（用主表主键避免 null 影响）
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})
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.ToList(); // 执行查询
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return data;
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}
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/// <summary>
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/// 分页查询收藏视频
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/// </summary>
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/// <param name="dto"></param>
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/// <returns>分页结果（视频列表和总数）</returns>
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public async Task<(List<DouyinFollowed> list, int totalCount)> GetPagedAsync(FollowRequestDto dto)
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{
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var where = this.Db.Queryable<DouyinFollowed>()
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.Where(x => x.mySelfId == dto.MySelfId)
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.WhereIF(!string.IsNullOrWhiteSpace(dto.FollowUserName), x => x.UperName.Contains(dto.FollowUserName));
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var totalCount = await where.CountAsync();
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var list = await where.OrderByDescending(x => x.OpenSync).OrderByDescending(x => x.LastSyncTime).Skip((dto.PageIndex - 1) * dto.PageSize).Take(dto.PageSize).ToListAsync();
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return (list, totalCount);
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}
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public async Task<bool> BatchInsert(List<DouyinFollowed> followeds)
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{
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return await Db.Insertable(followeds).ExecuteCommandAsync() > 0;
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}
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public async Task<bool> BatchUpdate(List<DouyinFollowed> followeds)
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{
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return await Db.Updateable(followeds).ExecuteCommandAsync() > 0;
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}
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public async Task<DouyinFollowed> GetBySecUId(string secUid)
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{
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return await this.GetFirstAsync(x => x.SecUid == secUid);
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}
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public async Task<DouyinFollowed> GetBySecUId(string uperId, string myId)
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{
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return await this.GetFirstAsync(x => x.UperId == uperId && x.mySelfId == myId);
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}
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public async Task<bool> Update(DouyinFollowed followed)
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{
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return await this.UpdateAsync(followed);
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}
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public async Task<bool> Insert(DouyinFollowed followed)
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{
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return await this.InsertAsync(followed);
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}
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public async Task<List<DouyinFollowed>> GetSyncFollows(string userId)
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{
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return await this.Db.Queryable<DouyinFollowed>()
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.Where(x => x.OpenSync == true).Where(x => x.mySelfId == userId).Where(x=>!string.IsNullOrWhiteSpace(x.SecUid))
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.ToListAsync();
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}
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/// <summary>
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/// 同步关注列表（新增名字和签名变更检测）
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/// </summary>
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/// <param name="followInfos"></param>
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/// <param name="ck"></param>
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/// <returns></returns>
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public async Task<(int add, int update, bool succ)> Sync(List<FollowingsItem> followInfos, DouyinCookie ck)
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{
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// 基础参数校验
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if (followInfos == null) followInfos = new List<FollowingsItem>();
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if (ck == null || string.IsNullOrWhiteSpace(ck.MyUserId))
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{
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Serilog.Log.Error("同步关注列表失败：当前用户ID为空");
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return (0, 0, false);
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}
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try
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{
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// 2. 开启SqlSugar事务
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await Db.Ado.BeginTranAsync();
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// 1. 提取当前批次的SecUid集合（去重）
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HashSet<string> currentSecUids = followInfos.Select(x => x.SecUid).ToHashSet();
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if (!currentSecUids.Any())
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{
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Serilog.Log.Debug($"同步关注列表：当前批次无有效数据（{ck.UserName}），直接返回成功");
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return (0, 0, true);
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}
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// 2. 查询当前批次对应的现有记录（仅查需要对比的，减少数据量）
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List<DouyinFollowed> existFollows = await Db.Queryable<DouyinFollowed>()
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.Where(x => x.mySelfId == ck.MyUserId)
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.Where(x => !x.IsNoFollowed)
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.Where(x => currentSecUids.Contains(x.SecUid)) // 仅查当前批次的SecUid
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.ToListAsync() ?? new List<DouyinFollowed>();
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// 3. 拆分：新增（当前批次有，数据库无） + 更新（当前批次有，数据库也有且字段变化）
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HashSet<string> existSecUids = existFollows.Select(x => x.SecUid).ToHashSet();
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var toAddFollows = followInfos.Where(x => !existSecUids.Contains(x.SecUid)).ToList();
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var toUpdateFollows = new List<DouyinFollowed>();
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// 3.1 筛选需要更新的记录
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foreach (var existFollow in existFollows)
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{
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var newFollow = followInfos.FirstOrDefault(x => x.SecUid == existFollow.SecUid);
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if (newFollow == null) continue;
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// 检查字段是否变更（精确匹配）
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bool nameChanged = !string.Equals(existFollow.UperName, newFollow.NickName, StringComparison.Ordinal);
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bool signatureChanged = !string.Equals(existFollow.Signature, newFollow.Signature, StringComparison.Ordinal);
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bool enterpriseChanged = !string.Equals(existFollow.Enterprise, newFollow.EnterpriseVerifyReason, StringComparison.Ordinal);
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bool uperAvatarChanged = !string.Equals(existFollow.UperAvatar, newFollow.Avatar?.UrlList?.FirstOrDefault() ?? "", StringComparison.Ordinal);
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if (nameChanged || signatureChanged || uperAvatarChanged || enterpriseChanged)
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{
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toUpdateFollows.Add(new DouyinFollowed
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{
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Id = existFollow.Id, // 主键用于匹配
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mySelfId = ck.MyUserId,
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SecUid = existFollow.SecUid,
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UperName = newFollow.NickName,
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Signature = newFollow.Signature,
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Enterprise = newFollow.EnterpriseVerifyReason,
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UperAvatar = newFollow.Avatar?.UrlList?.FirstOrDefault() ?? "",
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LastSyncTime = DateTime.UtcNow // 更新同步时间
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});
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}
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}
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// 4. 分批处理新增（单批200条）
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if (toAddFollows.Any())
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{
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Func<FollowingsItem, DouyinFollowed> mapToDouyinFollowed = follow => new DouyinFollowed
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{
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Id = IdGener.GetLong().ToString(),
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Enterprise = follow.EnterpriseVerifyReason,
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LastSyncTime = DateTime.UtcNow,
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mySelfId = ck.MyUserId,
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SecUid = follow.SecUid,
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OpenSync = false,
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UperAvatar = follow.Avatar?.UrlList?.FirstOrDefault() ?? "",
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UperName = follow.NickName,
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Signature = follow.Signature,
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UperId = follow.UperId
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};
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bool batchAddSuccess = await BatchProcessAsync(toAddFollows, 200,
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async batch => await BatchInsert(batch.Select(mapToDouyinFollowed).ToList()));
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if (!batchAddSuccess)
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{
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Serilog.Log.Error("同步关注列表失败：新增关注分批插入异常");
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return (toAddFollows.Count, toUpdateFollows.Count, false);
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}
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}
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// 5. 分批处理更新（适配SQLSugar语法）
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if (toUpdateFollows.Any())
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{
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bool batchUpdateSuccess = await BatchProcessAsync(toUpdateFollows, 200,
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async batch =>
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{
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int affectedRows = await Db.Updateable(batch)
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.UpdateColumns(x => new { x.UperName, x.Signature, x.LastSyncTime, x.Enterprise, x.UperAvatar })
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.WhereColumns(x => x.Id) // 按主键匹配
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.ExecuteCommandAsync();
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return affectedRows >= 0;
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});
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if (!batchUpdateSuccess)
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{
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Serilog.Log.Error("同步关注列表失败：关注信息更新异常");
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return (toAddFollows.Count, toUpdateFollows.Count, false);
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}
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}
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// 6. 提交事务
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await Db.Ado.CommitTranAsync();
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// 【重要】删除逻辑已移除：增量场景下不能通过批次对比删除，需单独设计取消关注逻辑
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Serilog.Log.Debug($"[{ck.UserName}]关注列表同步完成：新增{toAddFollows.Count}条，更新{toUpdateFollows.Count}条");
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return (toAddFollows.Count, toUpdateFollows.Count, true);
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}
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catch (Exception ex)
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{
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await Db.Ado.RollbackTranAsync();
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Serilog.Log.Error(ex, $"同步关注列表失败（{ck.UserName}）：{ex.Message}");
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return (0, 0, false);
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}
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}
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/// <summary>
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/// 通用分批处理工具方法
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/// </summary>
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/// <typeparam name="T">数据类型</typeparam>
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/// <param name="dataList">待处理数据</param>
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/// <param name="batchSize">单批大小</param>
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/// <param name="processAction">单批处理逻辑（返回是否成功）</param>
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/// <returns>整体处理结果</returns>
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private async Task<bool> BatchProcessAsync<T>(List<T> dataList, int batchSize, Func<List<T>, Task<bool>> processAction)
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{
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if (dataList == null || !dataList.Any() || batchSize <= 0)
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return true;
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int totalCount = dataList.Count;
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int batchCount = (int)Math.Ceiling((double)totalCount / batchSize);
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for (int i = 0; i < batchCount; i++)
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{
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var batch = dataList.Skip(i * batchSize).Take(batchSize).ToList();
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if (!batch.Any()) continue;
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bool success = await processAction(batch);
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if (!success)
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{
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Serilog.Log.Debug($"分批处理失败：第{i + 1}批（数据范围：{i * batchSize}-{Math.Min((i + 1) * batchSize - 1, totalCount - 1)}）");
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return false;
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}
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}
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return true;
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}
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}
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}
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