private void DeserializeSchemsHistory()
{
using (var streamReader = new StreamReader(Path.Combine(HistoryDataPath, HistoryCacheFile)))
{
var xmlSerializer = new XmlSerializer(typeof(Histories));
var histories = xmlSerializer.Deserialize(streamReader) as Histories;
if (histories == null)
{
throw new InvalidOperationException("The History Chace File Is Corrupted. It was deleted!");
}
Schemes.Clear();
History.Clear();
foreach (var history in histories.AllHistories)
{
var scheme = SchemeCache.ByTitle(history.Scheme.Title);
// Is this update necessary? Maybe the scheme was changed and so the history gets updated?
history.Scheme = scheme;
Schemes.Add(history.Scheme, history);
History.Add(history);
}
}
}
public async Task Refresh()
{
IsCacheRefreshing = true;
var schemes = await StudioStylesService.AllAsync();
Schemes.Clear();
foreach (var scheme in schemes)
{
Schemes.Add(scheme);
}
LastRefresh = DateTime.Now;
SerializeCachedSchemes(false);
IsCacheRefreshing = false;
IsImageCacheRefreshing = true;
await CheckSchemes(false);
SerializeCachedSchemes(true);
IsCacheValid = true;
IsImageCacheRefreshing = false;
}
public async Task Check()
{
var schemesCachePath = Path.Combine(SchemesDataPath, schemesCacheFile);
try
{
if (File.Exists(schemesCachePath))
{
IsCacheRefreshing = true;
var schemes = DeserializeCachedSchemes();
IsCacheValid = DateTime.Now.Subtract(schemes.LastRefresh).Days <= 10;
Schemes.Clear();
foreach (var scheme in schemes.AllSchemes)
{
Schemes.Add(scheme);
}
IsCacheRefreshing = false;
IsImageCacheRefreshing = true;
await CheckSchemes(schemes.ImagesFinished);
SerializeCachedSchemes(true);
IsImageCacheRefreshing = false;
}
else
{
IsCacheValid = false;
IsCacheRefreshing = false;
}
}
catch (InvalidOperationException)
{
IsCacheValid = false;
IsCacheRefreshing = false;
File.Delete(schemesCachePath);
}
catch (XmlException)
{
IsCacheValid = false;
IsCacheRefreshing = false;
File.Delete(schemesCachePath);
}
}