87 lines
2.2 KiB
C#
87 lines
2.2 KiB
C#
using Dinah.Core.IO;
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using Dinah.Core.Net.Http;
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using Dinah.Core.StepRunner;
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using System;
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using System.IO;
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using System.Linq;
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using System.Threading;
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namespace AaxDecrypter
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{
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public class UnencryptedAudiobookDownloader : AudiobookDownloadBase
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{
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protected override StepSequence steps { get; }
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public UnencryptedAudiobookDownloader(string outFileName, string cacheDirectory, DownloadLicense dlLic)
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: base(outFileName, cacheDirectory, dlLic)
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{
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steps = new StepSequence
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{
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Name = "Download Mp3 Audiobook",
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["Step 1: Get Mp3 Metadata"] = Step1_GetMetadata,
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["Step 2: Download Audiobook"] = Step2_DownloadAudiobookAsSingleFile,
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["Step 3: Create Cue"] = Step3_CreateCue,
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["Step 4: Cleanup"] = Step4_Cleanup,
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};
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}
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public override void Cancel()
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{
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isCanceled = true;
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CloseInputFileStream();
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}
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protected override int GetSpeedup(TimeSpan elapsed)
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{
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//Not implemented
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return 0;
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}
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protected override bool Step1_GetMetadata()
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{
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OnRetrievedCoverArt(null);
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return !isCanceled;
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}
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protected override bool Step2_DownloadAudiobookAsSingleFile()
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{
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DateTime startTime = DateTime.Now;
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//MUST put InputFileStream.Length first, because it starts background downloader.
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while (InputFileStream.Length > InputFileStream.WritePosition && !InputFileStream.IsCancelled)
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{
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var rate = InputFileStream.WritePosition / (DateTime.Now - startTime).TotalSeconds;
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var estTimeRemaining = (InputFileStream.Length - InputFileStream.WritePosition) / rate;
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if (double.IsNormal(estTimeRemaining))
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OnDecryptTimeRemaining(TimeSpan.FromSeconds(estTimeRemaining));
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var progressPercent = (double)InputFileStream.WritePosition / InputFileStream.Length;
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OnDecryptProgressUpdate(
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new DownloadProgress
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{
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ProgressPercentage = 100 * progressPercent,
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BytesReceived = (long)(InputFileStream.Length * progressPercent),
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TotalBytesToReceive = InputFileStream.Length
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});
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Thread.Sleep(200);
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}
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CloseInputFileStream();
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if (File.Exists(outputFileName))
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FileExt.SafeDelete(outputFileName);
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FileExt.SafeMove(InputFileStream.SaveFilePath, outputFileName);
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return !isCanceled;
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}
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}
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}
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