public void Analyze()
{
var countCustomers = _customerRepository.GetCustomers()
.Distinct()
.Count();
var countSalesmen = _salesmanRepository.GetSalesmen()
.Distinct()
.Count();
var orders = _orderRepository
.GetOrders()
.ToList();
var mostValuableOrder = orders
.OrderByDescending(o => o.Total)
.FirstOrDefault();
var worstPerformingSalesman = orders
.GroupBy(o => o.Salesman)
.Select(g => new
{
salesman = g.Key,
yield = g.Sum(o => o.Total)
})
.OrderBy(a => a.yield)
.FirstOrDefault()
?.salesman;
_orderAnalysisRepository.GenerateAnalysis(
countCustomers,
countSalesmen,
mostValuableOrder,
worstPerformingSalesman
);
}