104 lines
3.6 KiB
C#
104 lines
3.6 KiB
C#
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namespace YooAsset
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{
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internal class QueryRemotePackageVersionOperation : AsyncOperationBase
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{
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private enum ESteps
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{
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None,
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DownloadPackageVersion,
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Done,
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}
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private readonly IRemoteServices _remoteServices;
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private readonly string _packageName;
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private readonly bool _appendTimeTicks;
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private readonly int _timeout;
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private UnityWebDataRequester _downloader;
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private ESteps _steps = ESteps.None;
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private int _requestCount = 0;
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/// <summary>
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/// 包裹版本
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/// </summary>
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public string PackageVersion { private set; get; }
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public QueryRemotePackageVersionOperation(IRemoteServices remoteServices, string packageName, bool appendTimeTicks, int timeout)
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{
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_remoteServices = remoteServices;
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_packageName = packageName;
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_appendTimeTicks = appendTimeTicks;
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_timeout = timeout;
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}
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internal override void InternalOnStart()
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{
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_requestCount = RequestHelper.GetRequestFailedCount(_packageName, nameof(QueryRemotePackageVersionOperation));
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_steps = ESteps.DownloadPackageVersion;
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}
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internal override void InternalOnUpdate()
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{
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if (_steps == ESteps.None || _steps == ESteps.Done)
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return;
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if (_steps == ESteps.DownloadPackageVersion)
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{
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if (_downloader == null)
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{
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string fileName = YooAssetSettingsData.GetPackageVersionFileName(_packageName);
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string webURL = GetPackageVersionRequestURL(fileName);
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YooLogger.Log($"Beginning to request package version : {webURL}");
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_downloader = new UnityWebDataRequester();
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_downloader.SendRequest(webURL, _timeout);
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}
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Progress = _downloader.Progress();
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_downloader.CheckTimeout();
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if (_downloader.IsDone() == false)
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return;
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if (_downloader.HasError())
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{
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_steps = ESteps.Done;
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Status = EOperationStatus.Failed;
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Error = _downloader.GetError();
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RequestHelper.RecordRequestFailed(_packageName, nameof(QueryRemotePackageVersionOperation));
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}
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else
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{
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PackageVersion = _downloader.GetText();
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if (string.IsNullOrEmpty(PackageVersion))
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{
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_steps = ESteps.Done;
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Status = EOperationStatus.Failed;
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Error = $"Remote package version is empty : {_downloader.URL}";
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}
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else
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{
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_steps = ESteps.Done;
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Status = EOperationStatus.Succeed;
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}
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}
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_downloader.Dispose();
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}
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}
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private string GetPackageVersionRequestURL(string fileName)
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{
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string url;
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// 轮流返回请求地址
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if (_requestCount % 2 == 0)
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url = _remoteServices.GetRemoteMainURL(fileName);
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else
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url = _remoteServices.GetRemoteFallbackURL(fileName);
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// 在URL末尾添加时间戳
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if (_appendTimeTicks)
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return $"{url}?{System.DateTime.UtcNow.Ticks}";
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else
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return url;
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}
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}
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}
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