update sync objects

MediaBrowser.Server.Implementations/Sync/SyncJobProcessor.cs

@@ -0,0 +1,89 @@
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Library;
+using MediaBrowser.Controller.Sync;
+using MediaBrowser.Model.Sync;
+using MoreLinq;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace MediaBrowser.Server.Implementations.Sync
+{
+    public class SyncJobProcessor
+    {
+        private readonly ILibraryManager _libraryManager;
+        private readonly ISyncRepository _syncRepo;
+
+        public SyncJobProcessor(ILibraryManager libraryManager, ISyncRepository syncRepo)
+        {
+            _libraryManager = libraryManager;
+            _syncRepo = syncRepo;
+        }
+
+        public void ProcessJobItem(SyncJob job, SyncJobItem jobItem, SyncTarget target)
+        {
+
+        }
+
+        public async Task EnsureJobItems(SyncJob job)
+        {
+            var items = GetItemsForSync(job.RequestedItemIds)
+                .ToList();
+
+            var jobItems = _syncRepo.GetJobItems(job.Id)
+                .ToList();
+
+            var created = 0;
+
+            foreach (var item in items)
+            {
+                var itemId = item.Id.ToString("N");
+
+                var jobItem = jobItems.FirstOrDefault(i => string.Equals(i.ItemId, itemId, StringComparison.OrdinalIgnoreCase));
+
+                if (jobItem != null)
+                {
+                    continue;
+                }
+
+                jobItem = new SyncJobItem
+                {
+                    Id = Guid.NewGuid().ToString("N"),
+                    ItemId = itemId,
+                    JobId = job.Id,
+                    TargetId = job.TargetId
+                };
+
+                await _syncRepo.Create(jobItem).ConfigureAwait(false);
+
+                created++;
+            }
+
+            job.ItemCount = jobItems.Count + created;
+            await _syncRepo.Update(job).ConfigureAwait(false);
+        }
+
+        public IEnumerable<BaseItem> GetItemsForSync(IEnumerable<string> itemIds)
+        {
+            return itemIds.SelectMany(GetItemsForSync).DistinctBy(i => i.Id);
+        }
+
+        private IEnumerable<BaseItem> GetItemsForSync(string id)
+        {
+            var item = _libraryManager.GetItemById(id);
+
+            if (item == null)
+            {
+                return new List<BaseItem>();
+            }
+
+            return GetItemsForSync(item);
+        }
+
+        private IEnumerable<BaseItem> GetItemsForSync(BaseItem item)
+        {
+            return new[] { item };
+        }
+    }
+}