private static async Task <(CatalogPage, bool)> GetPage(CatalogPageIdentifier pageId, bool forceDownload)
{
string filePath = GetPageCachePath(pageId.Url);
if (!File.Exists(filePath))
{
Log.Debug($"Cannot find page {pageId.Url}, will download it..");
return(await DownloadPage(pageId).ContinueWith(CachePage), true);
}
if (forceDownload)
{
Log.Debug($"Download of page {pageId.Url} was forced..");
return(await DownloadPage(pageId).ContinueWith(CachePage), false);
}
string pageString = File.ReadAllText(filePath);
return(JsonConvert.DeserializeObject <CatalogPage>(pageString), false);
CatalogPage CachePage(Task <CatalogPage> i)
{
return(DiskCache.Cache(filePath, i));
}
}
private static async Task <CatalogPage> DownloadPage(CatalogPageIdentifier pageId)
{
var pageString = await SharedHttpClient.GetStringAsync(pageId.Url);
return(JsonConvert.DeserializeObject <CatalogPage>(pageString));
}