/// <summary>
/// Create a new Daf object
/// </summary>
/// <param name="m"></param>
/// <param name="d"></param>
internal Daf(Masechta m, int d)
{
this.Masechta = m; this.DafNumber = d;
}
public static async Task ProcessFile(ExecutionContext context, DateTime?dayToProcess = null)
{
dayToProcess ??= DateTime.Now;
var(Masechta, Daf) = StaticData.CalculateDafForDate(dayToProcess.Value);
var shiurName = $"{Masechta} {(Daf < 10 ? "0" + Daf : Daf.ToString())}";
var tempFilePath = Path.GetTempPath();
var client = new HttpClient();
/*
* FIND SHIUR PAGE HREF
*/
var baseUrl = "https://www.outorah.org";
var seriesUrl = $"{baseUrl}/series/4033";
var response = client.GetAsync(seriesUrl).ConfigureAwait(false).GetAwaiter().GetResult();
var stringContent = response.Content.ReadAsStringAsync().ConfigureAwait(false).GetAwaiter().GetResult();
var html = new HtmlAgilityPack.HtmlDocument();
html.LoadHtml(stringContent);
var elements = html.DocumentNode.SelectNodes("//*[@class='shiur__name']");
var element = elements.First(e => e.InnerText.Contains(shiurName));
var attribute = element.Attributes.First(a => a.Name == "href").Value;
/*
* FIND VIDEO URL
*/
response = client.GetAsync($"{baseUrl}{attribute}").ConfigureAwait(false).GetAwaiter().GetResult();
stringContent = response.Content.ReadAsStringAsync().ConfigureAwait(false).GetAwaiter().GetResult();
html.LoadHtml(stringContent);
elements = html.DocumentNode.SelectNodes("//script");
var shiur = elements.Where(e => e.Attributes.Any(a => a.Name == "type" && a.Value == "application/ld+json"))
.Select(e => System.Text.Json.JsonSerializer.Deserialize <Shiur>(e.InnerHtml))
.FirstOrDefault(e => !string.IsNullOrWhiteSpace(e.contentUrl));
/*
* DOWNLOAD VIDEO FILE
*/
var fileName = $"Daf {Daf} ({dayToProcess.Value.ToString("MMM d yyyy")})";
var videoFilePath = Path.Combine(tempFilePath, $"{fileName}.mp4");
response = client.GetAsync(shiur.contentUrl).ConfigureAwait(false).GetAwaiter().GetResult();
using var content = response.Content.ReadAsStreamAsync().ConfigureAwait(false).GetAwaiter().GetResult();
using var file = File.Create(videoFilePath);
content.CopyToAsync(file).ConfigureAwait(false).GetAwaiter().GetResult();
file.Close();
/*
* CONVERT VIDEO FILE TO AUDIO FILE
*/
var mp3FilePath = Path.Combine(tempFilePath, $"{fileName}.mp3");
var workingDirectory = Path.Combine(context.FunctionAppDirectory, "ffmpeg");
var pathToExecutable = Path.Combine(workingDirectory, "ffmpeg.exe");
var info = new ProcessStartInfo
{
FileName = pathToExecutable,
WorkingDirectory = workingDirectory,
Arguments = $"-y -i \"{videoFilePath}\" -codec:a libmp3lame -b:a 32k -vn -ac 1 \"{mp3FilePath}\"",
RedirectStandardInput = false,
RedirectStandardOutput = true,
UseShellExecute = false,
CreateNoWindow = true
};
using var proc = new Process
{
StartInfo = info
};
proc.Start();
proc.WaitForExit();
/*
* UPLOAD FILE TO CLOUD
*/
var blockBlob = StorageAccount.NewFromConnectionString(Environment.GetEnvironmentVariable("AzureWebJobsStorage", EnvironmentVariableTarget.Process))
.CreateCloudBlobClient()
.GetContainerReference(StaticData.ShiurimContainerName)
.GetBlockBlobReference(Path.Combine("dist/rabbielistefansky/eightminutedaf", Masechta.ToLowerInvariant().Replace(" ", string.Empty), Path.GetFileName(mp3FilePath)));
blockBlob.Properties.ContentType = "audio/mpeg";
await blockBlob.UploadFromFileAsync(mp3FilePath).ConfigureAwait(false);
File.Delete(videoFilePath);
File.Delete(mp3FilePath);
}
/// <summary>
/// Create a new Daf object
/// </summary>
/// <param name="m"></param>
/// <param name="d"></param>
internal Daf(Masechta m, int d)
{
Masechta = m; DafNumber = d;
}
