TEngine 6

UnityProject/Packages/YooAsset/Runtime/ResourcePackage/Operation/ClearCacheFilesOperation.cs

@@ -0,0 +1,108 @@
+using System.Collections.Generic;
+using System.Linq;
+
+namespace YooAsset
+{
+    public sealed class ClearCacheFilesOperation : AsyncOperationBase
+    {
+        private enum ESteps
+        {
+            None,
+            Prepare,
+            ClearCacheFiles,
+            CheckClearResult,
+            Done,
+        }
+
+        private readonly PlayModeImpl _impl;
+        private readonly string _clearMode;
+        private readonly object _clearParam;
+        private List<IFileSystem> _cloneList;
+        private FSClearCacheFilesOperation _clearCacheFilesOp;
+        private ESteps _steps = ESteps.None;
+
+        internal ClearCacheFilesOperation(PlayModeImpl impl, string clearMode, object clearParam)
+        {
+            _impl = impl;
+            _clearMode = clearMode;
+            _clearParam = clearParam;
+        }
+        internal override void InternalStart()
+        {
+            _steps = ESteps.Prepare;
+        }
+        internal override void InternalUpdate()
+        {
+            if (_steps == ESteps.None || _steps == ESteps.Done)
+                return;
+
+            if (_steps == ESteps.Prepare)
+            {
+                var fileSytems = _impl.FileSystems;
+                if (fileSytems == null || fileSytems.Count == 0)
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = "The file system is empty !";
+                    return;
+                }
+
+                foreach (var fileSystem in fileSytems)
+                {
+                    if (fileSystem == null)
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = "An empty object exists in the list!";
+                        return;
+                    }
+                }
+
+                _cloneList = fileSytems.ToList();
+                _steps = ESteps.ClearCacheFiles;
+            }
+
+            if (_steps == ESteps.ClearCacheFiles)
+            {
+                if (_cloneList.Count == 0)
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Succeed;
+                }
+                else
+                {
+                    var fileSystem = _cloneList[0];
+                    _cloneList.RemoveAt(0);
+
+                    _clearCacheFilesOp = fileSystem.ClearCacheFilesAsync(_impl.ActiveManifest, _clearMode, _clearParam);
+                    _clearCacheFilesOp.StartOperation();
+                    AddChildOperation(_clearCacheFilesOp);
+                    _steps = ESteps.CheckClearResult;
+                }
+            }
+
+            if (_steps == ESteps.CheckClearResult)
+            {
+                _clearCacheFilesOp.UpdateOperation();
+                Progress = _clearCacheFilesOp.Progress;
+                if (_clearCacheFilesOp.IsDone == false)
+                    return;
+
+                if (_clearCacheFilesOp.Status == EOperationStatus.Succeed)
+                {
+                    _steps = ESteps.ClearCacheFiles;
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = _clearCacheFilesOp.Error;
+                }
+            }
+        }
+        internal override string InternalGetDesc()
+        {
+            return $"ClearMode : {_clearMode}";
+        }
+    }
+}