public static void SimpleRun()
{
var repository = new Repository <CustomerFare>();
var groupedCustomerFares = repository.ItemsAdded
.GroupBy(customerFare => (customerFare.Id, customerFare.DateTime.Date))
.Select(customerFareGroup =>
customerFareGroup.Scan(
(Group: customerFareGroup.Key, CustomerFares: new List <CustomerFare>()),
(state, customerFare) =>
{
state.CustomerFares.Add(customerFare);
return(state.Group, state.CustomerFares);
}))
.Merge();
var subscription = groupedCustomerFares
.Subscribe(customerFareGroup =>
{
var group = customerFareGroup.Group;
var customerId = group.Id;
var groupDate = group.Date;
Console.WriteLine(
$"Group: <{customerId}::{groupDate.Day}-{groupDate.Month}-{groupDate.Year}>, Fares: ");
foreach (var customerFare in customerFareGroup.CustomerFares)
{
var date = customerFare.DateTime;
Console.Write($"\t<{customerFare.Id}::{date.Day}_{date.Month}_{date.Year} {date.Hour}_{date.Minute}_{date.Hour}::{customerFare.Fare}>, ");
}
Console.WriteLine();
});
DateTime[] dates = new DateTime[]
{
new DateTime(2020, 12, 07),
new DateTime(2020, 12, 08),
new DateTime(2020, 12, 09),
new DateTime(2020, 12, 10)
};
int[] ids = new int[] { 1, 2 };
for (int i = 0; i < 15; i++)
{
var date = dates[i % dates.Length];
var dateWithDifferentTime = new DateTime(date.Year, date.Month, date.Day, 10, i, 10);
var id = ids[i % ids.Length];
var customerFare = new CustomerFare(id, dateWithDifferentTime, i * 100);
repository.Add(customerFare);
}
subscription.Dispose();
}
public static void MaxTotalRun()
{
var repository = new Repository <CustomerFare>();
var groupedCustomerFares = repository.ItemsAdded
.GroupBy(customerFare => (customerFare.Id, customerFare.DateTime.Date))
.Select(customerFareGroup =>
customerFareGroup.Scan(
(Group: customerFareGroup.Key, Total: 0m, Max: 0m, CustomerFare: (CustomerFare)null),
(state, customerFare) =>
{
return(state.Group, state.Total + customerFare.Fare, Math.Max(state.Max, customerFare.Fare), customerFare);
}))
.Merge();
var subscription = groupedCustomerFares
.Subscribe(customerFareGroup =>
{
var group = customerFareGroup.Group;
var customerId = group.Id;
var groupDate = group.Date;
var customerFare = customerFareGroup.CustomerFare;
var fareId = customerFare.Id;
var rideDate = customerFare.DateTime;
var fare = customerFare.Fare;
Console.Write($"Group: [{customerId}::{groupDate.Day}-{groupDate.Month}-{groupDate.Year}], ");
Console.Write($"Total: <{customerFareGroup.Total}>, Max: <{customerFareGroup.Max}>, ");
Console.WriteLine($"Item: [{fareId}]:<{rideDate.Day}-{rideDate.Month}-{rideDate.Year}>, Fare: {fare}");
});
DateTime[] dates = new DateTime[]
{
new DateTime(2020, 12, 07),
new DateTime(2020, 12, 08),
new DateTime(2020, 12, 09),
new DateTime(2020, 12, 10)
};
int[] ids = new int[] { 1, 2 };
for (int i = 0; i < 15; i++)
{
var date = dates[i % dates.Length];
var dateWithDifferentTime = new DateTime(date.Year, date.Month, date.Day, 10, i, 10);
var id = ids[i % ids.Length];
var customerFare = new CustomerFare(id, dateWithDifferentTime, i * 100);
repository.Add(customerFare);
}
subscription.Dispose();
}
