internal IEnumerable<Music> GetMusicInfo()
{
var result = new BlockingCollection<Music>();
Task.Factory.StartNew(async () =>
{
int offset = 0;
int batch = 200;
int vkCount;
do
{
var response = await _client.CallApiMethod(ApiMethod.audio_get, new Dictionary<string, string>
{
["owner_id"] = _args.UserId,
["count"] = batch.ToString(),
["offset"] = (offset * batch).ToString()
});
vkCount = response["count"].ToObject<int>();
offset++;
foreach (var item in response["items"])
{
var music = new Music
{
Title = item["title"].ToObject<string>().Trim(),
Artist = item["artist"].ToObject<string>(),
Id = item["id"].ToObject<string>(),
Url = item["url"].ToObject<string>()
};
result.Add(music);
}
} while (offset * batch < vkCount);
result.CompleteAdding();
});
return result.GetConsumingEnumerable();
}
internal bool Download(Music music)
{
var targetFilename = Path.Combine(_args.Folder, $"{CleanFileName(music.Title)}.mp3");
if (File.Exists(targetFilename)) return true;
using (var client = new WebClient())
{
var downloadStateItem = new ConsoleState.DownloadState { Id = music.Id, Title = music.Title, PercentComplete = " NEW" };
_reporter.Update(s => { s.Downloads = s.Downloads.Add(downloadStateItem); });
long lastBytes = 0;
var locker = new ManualResetEventSlim(false);
client.DownloadProgressChanged += (o, downloadProgress) =>
{
_reporter.Update(s =>
{
downloadStateItem.PercentComplete = $"{downloadProgress.ProgressPercentage}%".PadLeft(4, ' ');
s.TotalBytes += downloadProgress.BytesReceived - lastBytes;
lastBytes = downloadProgress.BytesReceived;
});
};
client.DownloadFileCompleted += (o, completed) =>
{
locker.Set();
};
client.DownloadFileAsync(new Uri(music.Url), targetFilename);
locker.Wait();
_reporter.Update(s => { downloadStateItem.PercentComplete = "DONE"; });
return true;
}
}
