Initial commit

Assets/YooAsset/Runtime/PatchSystem/Operations/InitializationOperation.cs

@@ -0,0 +1,197 @@
+using System.Collections;
+using System.Collections.Generic;
+using System.IO;
+using UnityEngine;
+
+namespace YooAsset
+{
+	/// <summary>
+	/// 初始化操作
+	/// </summary>
+	public abstract class InitializationOperation : AsyncOperationBase
+	{
+	}
+
+	/// <summary>
+	/// 编辑器下模拟运行的初始化操作
+	/// </summary>
+	internal class EditorModeInitializationOperation : InitializationOperation
+	{
+		internal override void Start()
+		{
+			Status = EOperationStatus.Succeed;
+		}
+		internal override void Update()
+		{
+		}
+	}
+
+	/// <summary>
+	/// 离线模式的初始化操作
+	/// </summary>
+	internal class OfflinePlayModeInitializationOperation : InitializationOperation
+	{
+		private enum ESteps
+		{
+			Idle,
+			LoadAppManifest,
+			CheckAppManifest,
+			Done,
+		}
+
+		private OfflinePlayModeImpl _impl;
+		private ESteps _steps = ESteps.Idle;
+		private UnityWebRequester _downloader;
+		private string _downloadURL;
+
+		internal OfflinePlayModeInitializationOperation(OfflinePlayModeImpl impl)
+		{
+			_impl = impl;
+		}
+		internal override void Start()
+		{
+			_steps = ESteps.LoadAppManifest;
+		}
+		internal override void Update()
+		{
+			if (_steps == ESteps.Idle)
+				return;
+
+			if (_steps == ESteps.LoadAppManifest)
+			{
+				string filePath = AssetPathHelper.MakeStreamingLoadPath(ResourceSettingData.Setting.PatchManifestFileName);
+				_downloadURL = AssetPathHelper.ConvertToWWWPath(filePath);
+				_downloader = new UnityWebRequester();
+				_downloader.SendRequest(_downloadURL);
+				_steps = ESteps.CheckAppManifest;
+			}
+
+			if (_steps == ESteps.CheckAppManifest)
+			{
+				if (_downloader.IsDone() == false)
+					return;
+
+				if (_downloader.HasError())
+				{
+					Error = _downloader.GetError();
+					Status = EOperationStatus.Failed;
+					_downloader.Dispose();
+					_steps = ESteps.Done;
+					throw new System.Exception($"Fatal error : Failed load application patch manifest file : {_downloadURL}");
+				}
+
+				// 解析APP里的补丁清单
+				_impl.AppPatchManifest = PatchManifest.Deserialize(_downloader.GetText());
+				_downloader.Dispose();
+				_steps = ESteps.Done;
+				Status = EOperationStatus.Succeed;
+			}
+		}
+	}
+
+	/// <summary>
+	/// 网络模式的初始化操作
+	/// </summary>
+	internal class HostPlayModeInitializationOperation : InitializationOperation
+	{
+		private enum ESteps
+		{
+			Idle,
+			InitCache,
+			LoadAppManifest,
+			CheckAppManifest,
+			LoadSandboxManifest,
+			Done,
+		}
+
+		private HostPlayModeImpl _impl;
+		private ESteps _steps = ESteps.Idle;
+		private UnityWebRequester _downloader;
+		private string _downloadURL;
+
+		internal HostPlayModeInitializationOperation(HostPlayModeImpl impl)
+		{
+			_impl = impl;
+		}
+		internal override void Start()
+		{
+			_steps = ESteps.InitCache;
+		}
+		internal override void Update()
+		{
+			if (_steps == ESteps.Idle)
+				return;
+
+			if (_steps == ESteps.InitCache)
+			{
+				// 每次启动时比对APP版本号是否一致	
+				PatchCache cache = PatchCache.LoadCache();
+				if (cache.CacheAppVersion != Application.version)
+				{
+					Logger.Warning($"Cache is dirty ! Cache app version is {cache.CacheAppVersion}, Current app version is {Application.version}");
+
+					// 注意：在覆盖安装的时候，会保留APP沙盒目录，可以选择清空缓存目录
+					if (_impl.ClearCacheWhenDirty)
+					{
+						Logger.Warning("Clear cache files.");					
+						PatchHelper.DeleteSandboxCacheFolder();
+					}
+
+					// 删除清单文件
+					PatchHelper.DeleteSandboxPatchManifestFile();
+					// 更新缓存文件
+					PatchCache.UpdateCache();
+				}
+				_steps = ESteps.LoadAppManifest;
+			}
+
+			if (_steps == ESteps.LoadAppManifest)
+			{
+				// 加载APP内的补丁清单
+				Logger.Log($"Load application patch manifest.");
+				string filePath = AssetPathHelper.MakeStreamingLoadPath(ResourceSettingData.Setting.PatchManifestFileName);
+				_downloadURL = AssetPathHelper.ConvertToWWWPath(filePath);
+				_downloader = new UnityWebRequester();
+				_downloader.SendRequest(_downloadURL);
+				_steps = ESteps.CheckAppManifest;
+			}
+
+			if (_steps == ESteps.CheckAppManifest)
+			{
+				if (_downloader.IsDone() == false)
+					return;
+
+				if (_downloader.HasError())
+				{
+					Error = _downloader.GetError();
+					Status = EOperationStatus.Failed;
+					_downloader.Dispose();
+					_steps = ESteps.Done;
+					throw new System.Exception($"Fatal error : Failed load application patch manifest file : {_downloadURL}");
+				}
+
+				// 解析补丁清单
+				string jsonData = _downloader.GetText();
+				_impl.AppPatchManifest = PatchManifest.Deserialize(jsonData);
+				_impl.LocalPatchManifest = _impl.AppPatchManifest;
+				_downloader.Dispose();
+				_steps = ESteps.LoadSandboxManifest;
+			}
+
+			if (_steps == ESteps.LoadSandboxManifest)
+			{
+				// 加载沙盒内的补丁清单	
+				if (PatchHelper.CheckSandboxPatchManifestFileExist())
+				{
+					Logger.Log($"Load sandbox patch manifest.");
+					string filePath = AssetPathHelper.MakePersistentLoadPath(ResourceSettingData.Setting.PatchManifestFileName);
+					string jsonData = File.ReadAllText(filePath);
+					_impl.LocalPatchManifest = PatchManifest.Deserialize(jsonData);
+				}
+
+				_steps = ESteps.Done;
+				Status = EOperationStatus.Succeed;
+			}
+		}
+	}
+}