cloud sync updates

MediaBrowser.Server.Implementations/Sync/MultiProviderSync.cs

@@ -0,0 +1,69 @@
+using MediaBrowser.Common.IO;
+using MediaBrowser.Common.Progress;
+using MediaBrowser.Controller;
+using MediaBrowser.Controller.Sync;
+using MediaBrowser.Model.Logging;
+using MediaBrowser.Model.Sync;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace MediaBrowser.Server.Implementations.Sync
+{
+    public class MultiProviderSync
+    {
+        private readonly ISyncManager _syncManager;
+        private readonly IServerApplicationHost _appHost;
+        private readonly ILogger _logger;
+        private readonly IFileSystem _fileSystem;
+
+        public MultiProviderSync(ISyncManager syncManager, IServerApplicationHost appHost, ILogger logger, IFileSystem fileSystem)
+        {
+            _syncManager = syncManager;
+            _appHost = appHost;
+            _logger = logger;
+            _fileSystem = fileSystem;
+        }
+
+        public async Task Sync(IEnumerable<IServerSyncProvider> providers, IProgress<double> progress, CancellationToken cancellationToken)
+        {
+            var targets = providers
+                .SelectMany(i => i.GetAllSyncTargets().Select(t => new Tuple<IServerSyncProvider, SyncTarget>(i, t)))
+                .ToList();
+
+            var numComplete = 0;
+            double startingPercent = 0;
+            double percentPerItem = 1;
+            if (targets.Count > 0)
+            {
+                percentPerItem /= targets.Count;
+            }
+
+            foreach (var target in targets)
+            {
+                cancellationToken.ThrowIfCancellationRequested();
+
+                var currentPercent = startingPercent;
+                var innerProgress = new ActionableProgress<double>();
+                innerProgress.RegisterAction(pct =>
+                {
+                    var totalProgress = pct * percentPerItem;
+                    totalProgress += currentPercent;
+                    progress.Report(totalProgress);
+                });
+
+                await new MediaSync(_logger, _syncManager, _appHost, _fileSystem)
+                    .Sync(target.Item1, target.Item1.GetDataProvider(), target.Item2, innerProgress, cancellationToken)
+                    .ConfigureAwait(false);
+
+                numComplete++;
+                startingPercent = numComplete;
+                startingPercent /= targets.Count;
+                startingPercent *= 100;
+                progress.Report(startingPercent);
+            }
+        }
+    }
+}