public async Task <TotalEarningForCustomerInMonth> CalculateAndSaveCustomerEarningsForMonthAsync(int customerId, Month month)
{
var customer = await _customerReadRepository.GetAsync(customerId);
var earnings = customer.Earnings.Where(x => x.MonthInYear == month).Sum(s => s.Value);
var result = new TotalEarningForCustomerInMonth
{
CustomerId = customer.Id,
Month = month,
Name = customer.Name,
TotalEarning = earnings
};
await _totalEarningWriteRepository.AddAsync(result);
return(result);
}
public async Task CalculateCustomerEarningsForMonthAsync(int customerId, Month month,
Func <int, Task <Customer> > read, Func <TotalEarningForCustomerInMonth, Task> write,
Action <TotalEarningForCustomerInMonth> returnValue)
{
var customer = await read?.Invoke(customerId);
var earnings = customer.Earnings.Where(x => x.MonthInYear == month).Sum(s => s.Value);
var result = new TotalEarningForCustomerInMonth
{
CustomerId = customer.Id,
Month = month,
Name = customer.Name,
TotalEarning = earnings
};
await write?.Invoke(result);
returnValue?.Invoke(result);
}
