init

2025-09-30 15:00:32 +08:00
parent 1b262f06b8
commit b4e759cf69
202 changed files with 22035 additions and 0 deletions
@@ -0,0 +1,90 @@
+using dy.net.dto;
+using dy.net.model;
+using dy.net.repository;
+using dy.net.utils;
+using System.ComponentModel;
+using System.Threading.Tasks;
+
+namespace dy.net.service
+{
+    public class DyCollectVideoService
+    {
+
+        private readonly DyCollectVideoRepository _dyCollectVideoRepository;
+
+        public DyCollectVideoService(DyCollectVideoRepository dyCollectVideoRepository)
+        {
+            _dyCollectVideoRepository = dyCollectVideoRepository;
+        }
+
+
+        public async Task<bool> batchInsert(List<DyCollectVideo> videos)
+        {
+
+            // 边界处理：如果传入的列表为空，直接返回成功（或根据业务返回false）
+            if (videos == null || !videos.Any())
+                return true;
+
+            // 1. 提取待插入的所有AwemeId（去重，减少数据库查询压力）
+            var newAwemeIds = videos.Select(x => x.AwemeId)
+                                    .Distinct()
+                                    .ToList();
+
+            // 2. 查询数据库中已存在的AwemeId（只查需要的字段，提高效率）
+            var existingAwemeIds = await _dyCollectVideoRepository
+                .Query(x => newAwemeIds.Contains(x.AwemeId)) // 使用Query方法构建查询
+                .Select(x => x.AwemeId) // 只获取AwemeId，减少数据传输
+                .ToListAsync();
+
+            // 3. 过滤出数据库中不存在的视频（只保留新记录）
+            var videosToInsert = videos
+                .Where(video => !existingAwemeIds.Contains(video.AwemeId))
+                .ToList();
+
+            // 4. 如果没有需要插入的新记录，直接返回成功
+            if (!videosToInsert.Any())
+                return true;
+
+            // 5. 批量插入过滤后的新记录
+            var insertedCount = await _dyCollectVideoRepository.InsertRangeAsync(videosToInsert);
+
+            // 返回是否插入成功（至少插入一条）
+            return insertedCount > 0;
+        }
+
+
+        public async Task<VideoStaticsDto> GetStatics()
+        {
+
+            List<DyCollectVideo> list = await this._dyCollectVideoRepository.GetAllAsync();
+            if (!list.Any())
+                return new VideoStaticsDto();
+            var Categories = list.GroupBy(x => x.Tag1).Select(x => new VideoStaticsItemDto { Name = x.Key, Count = x.LongCount() }).OrderByDescending(p=>p.Count).ToList();
+            Categories.Where(x => string.IsNullOrWhiteSpace(x.Name)).ToList().ForEach(x => x.Name = "其他");
+            var data = new VideoStaticsDto
+            {
+                AuthorCount = list.Select(x => x.AuthorId).Distinct().Count(),
+                CategoryCount=list.Select(x=>x.Tag1).Distinct().Count(),
+                VideoCount = list.Count,
+                Categories= Categories,
+                FavoriteCount= list.Count(x => x.ViedoType=="1"),
+                CollectCount= list.Count(x => x.ViedoType=="2"),
+                ViedoSizeTotal = ByteToGbConverter.ConvertBytesToGb(list.Sum(x=>x.FileSize))
+            };
+            data.Authors = list.GroupBy(x => x.Author).Select(x => new VideoStaticsItemDto { Name = x.Key, Count = x.LongCount(), Icon=x.FirstOrDefault().AuthorAvatarUrl }).OrderByDescending(d=>d.Count).ToList();
+            return data;
+        }
+
+
+        //分页查询
+
+        public async Task<(List<DyCollectVideo> list, int totalCount)> GetPagedAsync(int pageIndex, int pageSize, string tag = null, string author = null,string viedoType=null,List<string>? dates=null)
+        {
+            return await _dyCollectVideoRepository.GetPagedAsync(pageIndex, pageSize, tag, author, viedoType, dates);
+        }
+
+    }
+
+
+
+}