Tranga-Website/Tranga/TaskExecutor.cs

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C#
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namespace Tranga;
public static class TaskExecutor
{
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public static void Execute(Connector[] connectors, TrangaTask trangaTask, Dictionary<Publication, List<Chapter>> chapterCollection)
{
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Connector? connector = connectors.FirstOrDefault(c => c.name == trangaTask.connectorName);
if (connector is null)
throw new ArgumentException($"Connector {trangaTask.connectorName} is not a known connector.");
if (trangaTask.isBeingExecuted)
return;
trangaTask.isBeingExecuted = true;
trangaTask.lastExecuted = DateTime.Now;
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switch (trangaTask.task)
{
case TrangaTask.Task.DownloadNewChapters:
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DownloadNewChapters(connector, (Publication)trangaTask.publication!, trangaTask.language, chapterCollection);
break;
case TrangaTask.Task.UpdateChapters:
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UpdateChapters(connector, (Publication)trangaTask.publication!, trangaTask.language, chapterCollection);
break;
case TrangaTask.Task.UpdatePublications:
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UpdatePublications(connector, chapterCollection);
break;
}
trangaTask.isBeingExecuted = false;
}
private static void UpdatePublications(Connector connector, Dictionary<Publication, List<Chapter>> chapterCollection)
{
Publication[] publications = connector.GetPublications();
foreach (Publication publication in publications)
chapterCollection.TryAdd(publication, new List<Chapter>());
}
private static void DownloadNewChapters(Connector connector, Publication publication, string language, Dictionary<Publication, List<Chapter>> chapterCollection)
{
List<Chapter> newChapters = UpdateChapters(connector, publication, language, chapterCollection);
foreach(Chapter newChapter in newChapters)
connector.DownloadChapter(publication, newChapter);
connector.DownloadCover(publication);
connector.SaveSeriesInfo(publication);
}
private static List<Chapter> UpdateChapters(Connector connector, Publication publication, string language, Dictionary<Publication, List<Chapter>> chapterCollection)
{
List<Chapter> newChaptersList = new();
if (!chapterCollection.ContainsKey(publication))
return newChaptersList;
List<Chapter> currentChapters = chapterCollection[publication];
Chapter[] newChapters = connector.GetChapters(publication, language);
newChaptersList = newChapters.ToList()
.ExceptBy(currentChapters.Select(cChapter => cChapter.url), nChapter => nChapter.url).ToList();
return newChaptersList;
}
}