public static OrderWithStatus FromOrder(Order order)
{
// To simulate a real backend process, we fake status updates based on the amount
// of time since the order was placed
string statusText;
List <Marker> mapMarkers;
var dispatchTime = order.CreatedTime.AddSeconds(10);
var deliveryDuration = TimeSpan.FromMinutes(1); // Unrealistic, but more interesting to watch
if (DateTime.Now < dispatchTime)
{
statusText = "Preparing";
mapMarkers = new List <Marker>
{
ToMapMarker("You", order.DeliveryLocation, showPopup: true)
};
}
else if (DateTime.Now < dispatchTime + deliveryDuration)
{
statusText = "Out for delivery";
var startPosition = ComputeStartPosition(order);
var proportionOfDeliveryCompleted = Math.Min(1, (DateTime.Now - dispatchTime).TotalMilliseconds / deliveryDuration.TotalMilliseconds);
var driverPosition = LatLong.Interpolate(startPosition, order.DeliveryLocation, proportionOfDeliveryCompleted);
mapMarkers = new List <Marker>
{
ToMapMarker("You", order.DeliveryLocation),
ToMapMarker("Driver", driverPosition, showPopup: true),
};
}
else
{
statusText = "Delivered";
mapMarkers = new List <Marker>
{
ToMapMarker("Delivery location", order.DeliveryLocation, showPopup: true),
};
}
return(new OrderWithStatus
{
Order = order,
StatusText = statusText,
MapMarkers = mapMarkers,
});
}
static Marker ToMapMarker(string description, LatLong coords, bool showPopup = false)
=> new Marker
{
Description = description, X = coords.Longitude, Y = coords.Latitude, ShowPopup = showPopup
};