public async Task <IEnumerable <Label> > UpdateLabelsAsync(bool force)
{
// Wait for the old update to finish first:
if (!(updateLabelsTask is null) && !updateLabelsTask.IsCompleted)
{
return(await updateLabelsTask.ConfAwaitFalse());
}
updateLabelsTask = Task.Run(async() =>
{
IEnumerable <Label> labels = null;
if (!force && CacheDbContext.IsCacheEntryValid(LABELS_URI.ToString()))
{
Logger.Info("No need to fetch labels. Cache is still valid.");
using (CanteensDbContext ctx = new CanteensDbContext())
{
labels = ctx.Labels.Include(ctx.GetIncludePaths(typeof(Label))).ToList();
}
if (LABEL_CACHE.Count <= 0)
{
UpdateLabelCache(labels);
}
}
labels = await DownloadLabelsAsync();
if (!(labels is null))
{
using (CanteensDbContext ctx = new CanteensDbContext())
{
ctx.RemoveRange(ctx.Labels);
ctx.RemoveRange(ctx.LabelTranslations);
ctx.AddRange(labels);
}
CacheDbContext.UpdateCacheEntry(LABELS_URI.ToString(), DateTime.Now.Add(MAX_TIME_IN_CACHE));
UpdateLabelCache(labels);
return(labels);
}
Logger.Info("Failed to retrieve labels. Returning from DB.");
using (CanteensDbContext ctx = new CanteensDbContext())
{
labels = ctx.Labels.Include(ctx.GetIncludePaths(typeof(Label))).ToList();
}
if (LABEL_CACHE.Count <= 0)
{
UpdateLabelCache(labels);
}
return(labels);
});
return(await updateLabelsTask.ConfAwaitFalse());
}
//--------------------------------------------------------Misc Methods:---------------------------------------------------------------\\
#region --Misc Methods (Public)--
public async Task <IEnumerable <Canteen> > UpdateCanteensAsync(bool force)
{
// Wait for the old update to finish first:
if (!(updateCanteensTask is null) && !updateCanteensTask.IsCompleted)
{
return(await updateCanteensTask.ConfAwaitFalse());
}
updateCanteensTask = Task.Run(async() =>
{
// Get current language:
Language lang = CanteensDbContext.GetActiveLanguage();
if (lang is null)
{
Logger.Error("Failed to download canteens. No language available.");
return(new List <Canteen>());
}
Logger.Debug($"Canteen language: {lang.Name}");
if (!force && CacheDbContext.IsCacheEntryValid(CANTEENS_URI_POSTDIX + '_' + lang.BaseUrl))
{
Logger.Info("No need to fetch canteens. Cache is still valid.");
using (CanteensDbContext ctx = new CanteensDbContext())
{
return(ctx.Canteens.Include(ctx.GetIncludePaths(typeof(Canteen))).ToList());
}
}
IEnumerable <Canteen> canteens = await DownloadCanteensAsync(lang);
if (!(canteens is null))
{
using (CanteensDbContext ctx = new CanteensDbContext())
{
ctx.RemoveRange(ctx.Canteens);
ctx.AddRange(canteens);
}
CacheDbContext.UpdateCacheEntry(CANTEENS_URI_POSTDIX + '_' + lang.BaseUrl, DateTime.Now.Add(MAX_TIME_IN_CACHE));
return(canteens);
}
Logger.Info("Failed to retrieve canteens. Returning from DB.");
using (CanteensDbContext ctx = new CanteensDbContext())
{
return(ctx.Canteens.Include(ctx.GetIncludePaths(typeof(Canteen))).ToList());
}
});
return(await updateCanteensTask.ConfAwaitFalse());
}
public async Task <IEnumerable <Language> > UpdateLanguagesAsync(bool force)
{
// Wait for the old update to finish first:
if (!(updateLanguagesTask is null) && !updateLanguagesTask.IsCompleted)
{
return(await updateLanguagesTask.ConfAwaitFalse());
}
updateLanguagesTask = Task.Run(async() =>
{
if (!force && CacheDbContext.IsCacheEntryValid(LANGUAGES_URI.ToString()))
{
Logger.Info("No need to fetch canteen languages. Cache is still valid.");
using (CanteensDbContext ctx = new CanteensDbContext())
{
return(ctx.Languages.Include(ctx.GetIncludePaths(typeof(Language))).ToList());
}
}
IEnumerable <Language> languages = await DownloadLanguagesAsync();
if (!(languages is null))
{
// Keep currently selected language or select english per default:
List <Language> langList = languages.ToList();
MigrateActiveLanguage(langList);
using (CanteensDbContext ctx = new CanteensDbContext())
{
ctx.RemoveRange(ctx.Languages);
ctx.AddRange(langList);
}
CacheDbContext.UpdateCacheEntry(LANGUAGES_URI.ToString(), DateTime.Now.Add(MAX_TIME_IN_CACHE));
return((IEnumerable <Language>)langList);
}
Logger.Info("Failed to retrieve canteen languages. Returning from DB.");
using (CanteensDbContext ctx = new CanteensDbContext())
{
return(ctx.Languages.Include(ctx.GetIncludePaths(typeof(Language))).ToList());
}
});
return(await updateLanguagesTask.ConfAwaitFalse());
}
public async Task <IEnumerable <Dish> > LoadDishesAsync(string canteenId, DateTime date)
{
// Wait for the old update to finish first:
if (!(updateTask is null) && !updateTask.IsCompleted)
{
await updateTask.ConfAwaitFalse();
}
List <Dish> dishes;
using (CanteensDbContext ctx = new CanteensDbContext())
{
dishes = ctx.Dishes.Where(d => string.Equals(d.CanteenId, canteenId) && d.Date.Date.CompareTo(date.Date) == 0).Include(ctx.GetIncludePaths(typeof(Dish))).ToList();
}
// Sort dishes, so side dishes are at the end:
dishes.Sort((a, b) =>
{
if (a.IsSideDish && b.IsSideDish)
{
return(0);
}
if (a.IsSideDish)
{
return(1);
}
if (b.IsSideDish)
{
return(-1);
}
return(0);
});
return(dishes);
}