public async Task <ComicDetail> StoreAsync()
{
KeepingAction?.Invoke(null, null, null, null, KeepingActionTypes.BeginGetEntity);
OnBeginGetEntity();
var entity = await Provider.GetChaptersAsync(Address);
try
{
if (entity is null)
{
return(null);
}
var detail = new ComicDetail {
Entity = entity
};
var cwps = new List <ChapterWithPage>(entity.Chapters.Length);
foreach (var item in entity.Chapters)
{
if (tokenSource.IsCancellationRequested)
{
break;
}
KeepingAction?.Invoke(entity, item, null, null, KeepingActionTypes.BeginStoreChapter);
OnBeginStoreChapter(entity, item);
try
{
var cwp = await StoreChapterAsync(entity, item);
cwps.Add(cwp);
}
catch (Exception ex)
{
KeepingAction?.Invoke(entity, item, null, ex, KeepingActionTypes.StoreChapterException);
OnStoreChapterException(entity, item, ex);
}
KeepingAction?.Invoke(entity, item, null, null, KeepingActionTypes.EndStoreChapter);
OnEndStoreChapter(entity, item);
}
if (!tokenSource.IsCancellationRequested)
{
var streamManager = AppEngine.GetRequiredService <RecyclableMemoryStreamManager>();
var str = JsonHelper.Serialize(detail);
var buffer = Encoding.UTF8.GetBytes(str);
var path = ComicIndexName;
using (var stream = streamManager.GetStream())
{
stream.Write(buffer, 0, buffer.Length);
stream.Seek(0, SeekOrigin.Begin);
await storeService.SaveAsync(path, stream);
}
}
return(detail);
}
finally
{
KeepingAction?.Invoke(entity, null, null, null, KeepingActionTypes.EndGetEntity);
OnEndGetEntity(entity);
}
}
protected virtual async Task StorePageAsync(ComicEntity entity, ComicChapter chapter, ComicPage page)
{
KeepingAction?.Invoke(entity, chapter, page, null, KeepingActionTypes.BeginStorePage);
OnBeginStorePage(chapter, page);
try
{
var mode = WriteMode;
if (mode == ComicStoreWriteModes.NotExists)
{
var ok = await storeService.ExistsAsync(page.TargetUrl);
if (ok)
{
KeepingAction?.Invoke(entity, chapter, page, null, KeepingActionTypes.EndStorePage);
OnEndStorePage(chapter, page, false);
return;
}
}
var path = page.TargetUrl;
if (HasImageFolderName)
{
path = string.Concat(ImageFolderName, "/", page.TargetUrl);
}
var stream = await fetchService.GetStreamAsync(page.TargetUrl);
if (stream is null)
{
stream = await Provider.GetImageStreamAsync(page.TargetUrl);
if (fetchService != storeService)
{
await fetchService.SaveAsync(path, stream);
}
}
stream.Seek(0, SeekOrigin.Begin);
await storeService.SaveAsync(path, stream);
}
catch (Exception ex)
{
KeepingAction?.Invoke(entity, chapter, page, ex, KeepingActionTypes.StorePageException);
OnStorePageException(chapter, page, ex);
}
KeepingAction?.Invoke(entity, chapter, page, null, KeepingActionTypes.EndStorePage);
OnEndStorePage(chapter, page, true);
}
