private void LoadHistory()
{
Logger.Info("RestoreTabs TabsVM LoadHistory start");
var cache = HistoryModel.LoadHistoryCache();
if (cache.Any())
{
Task.Run(() =>
{
var tabs = cache.Select(s => GetTab(s.File, false, s.Start)).ToList();
dispatcher.Invoke(() =>
{
try
{
tabs.ForEach(t => historySrc.Add(t));
}
catch (Exception ex)
{
Logger.Error(ex, "RestoreTabs TabsVM dispatcher.Invoke History adds from cache.");
}
});
});
}
Task.Run(() =>
{
var dbItems = cache.Any()
? new DbHistory().LoadHistoryFiles(cache.Max(m => m.Start)).ToList()
: new DbHistory().LoadHistoryFiles().ToList();
Logger.Info("RestoreTabs TabsVM Load dbItems.");
var tabs = dbItems.Select(s => GetTab(s.DocPath, false, s.Start)).ToList();
Task.Delay(TimeSpan.FromMilliseconds(300)).Wait();
dispatcher.Invoke(() =>
{
try
{
tabs.ForEach(t => historySrc.Add(t));
}
catch (Exception ex)
{
Logger.Error(ex, "RestoreTabs TabsVM dispatcher.Invoke History");
}
});
var removeTabs = historySrc.Items.GroupBy(g => g.File).SelectMany(s => s.OrderByDescending(o => o.Start).Skip(1));
Task.Delay(TimeSpan.FromMilliseconds(300)).Wait();
foreach (var tab in removeTabs)
{
dispatcher.Invoke(() =>
{
try
{
historySrc.Remove(tab);
}
catch
{
}
});
}
});
// Загрузка из базы и сохранение в кеш
Task.Run(() =>
{
if (!cache.Any() || HistoryModel.NeedUpdateCashe())
{
var dbItems = new DbHistory().LoadHistoryFiles().ToList();
var tabs = dbItems.Select(s => new HistoryTab {
File = s.DocPath, Start = s.Start
})
.GroupBy(g => g.File).Select(s => s.OrderByDescending(o => o.Start).FirstOrDefault()).ToList();
HistoryModel.SaveHistoryCache(tabs);
}
});
}