public async Task <Response> Handle(Request request, CancellationToken cancellationToken)
{
var account =
await
(
from setting in _context.AccountSettings
where setting.AccountId == _currentAccount.Id
select new
{
setting.TargetCalories,
CurrentCalories = setting.Account.Meals.Where(x => x.Date == request.Date).Sum(x => x.Calories)
}
).SingleOrDefaultAsync(cancellationToken);
if (!request.Calories.HasValue)
{
request.Calories = await _caloriesService.GetCaloriesAsync(request.Text);
}
var meal = request.ToMeal(_currentAccount.Id);
// This is a business operation. So, it should not be in the related mapper extension
meal.CalorieStatus = account?.CurrentCalories.GetValueOrDefault() + request.Calories < account?.TargetCalories;
_context.Meals.Add(meal);
await _context.SaveChangesAsync(cancellationToken);
return(new Response
{
Id = meal.Id
});
}
public async Task <Unit> Handle(Request request, CancellationToken cancellationToken)
{
var query = _context.Meals.Where(x => x.Id == request.Id);
// User can only update her own meal
// Admin can update all meals
if (_currentAccount.Role != Role.Admin)
{
query = query.Where(x => x.Account.Id == _currentAccount.Id);
}
var meal = await query.SingleOrDefaultAsync(cancellationToken);
if (meal == null)
{
throw new RestException(HttpStatusCode.NotFound, ResourceConstant.NotFound);
}
var account =
await
(
from setting in _context.AccountSettings
where setting.AccountId == _currentAccount.Id
select new
{
setting.TargetCalories,
CurrentCalories = setting.Account.Meals.Where(x => x.Date == request.Date).Sum(x => x.Calories)
}
).SingleOrDefaultAsync(cancellationToken);
if (!request.Calories.HasValue)
{
request.Calories = await _caloriesService.GetCaloriesAsync(request.Text);
}
meal.Date = request.Date;
meal.Time = DateTime.ParseExact(request.Time, ResourceConstant.TimeFormat, CultureInfo.InvariantCulture,
DateTimeStyles.None);
meal.Text = request.Text;
meal.Calories = request.Calories;
// CalorieStatus calculation should be optimized
meal.CalorieStatus = account?.CurrentCalories.GetValueOrDefault() + request.Calories - meal.Calories < account?.TargetCalories;
await _context.SaveChangesAsync(cancellationToken);
return(default);