private void SimulationEngine(LaunchMissileEvent eventMessage)
{
var deploymentPlatformLocation = eventMessage.DeploymentPlatformLocation;
var targetLocation = eventMessage.TargetLocation;
// Find bearing between deployment platform and target locations
var bearing = CoordinatesHelper.FindInitialBearing(deploymentPlatformLocation, targetLocation);
var launchedMissileCurrentStatusEvent = new LaunchedMissileCurrentStatusEvent
{
MissileId = eventMessage.MissileId,
MissileServiceIdentityNumber = eventMessage.MissileServiceIdentityNumber,
MissileName = eventMessage.MissileName,
MissileStatus = MissileStatus.Launched,
MissileGpsLocation = deploymentPlatformLocation,
InformationPostedDate = DateTime.UtcNow,
Bearing = bearing
};
// Post initial infromation about launched missile
PostCurrentStatusEvent(launchedMissileCurrentStatusEvent);
var distance = CoordinatesHelper.GetDistance(deploymentPlatformLocation, targetLocation);
if (distance <= stepInKm)
{
// Post final information about launched missile
launchedMissileCurrentStatusEvent.SetFinalInfo(targetLocation);
PostCurrentStatusEvent(launchedMissileCurrentStatusEvent);
return;
}
var currentDistance = 0;
var maxNotificationsBeforeFinish = (Int32)Math.Floor(distance / stepInKm);
for (var i = 0; i < maxNotificationsBeforeFinish; i++)
{
currentDistance += stepInKm;
// Double check if current distance is less than total distance
if (currentDistance >= distance)
{
break;
}
// Get current missile GPS coordinates
var currentMissileGpsLocation =
CoordinatesHelper.GetIntermediateLocation(
deploymentPlatformLocation, bearing, currentDistance);
// Post current status information about launched missile
launchedMissileCurrentStatusEvent.SetIntermediaryInfo(currentMissileGpsLocation);
PostCurrentStatusEvent(launchedMissileCurrentStatusEvent);
}
// Post final information about launched missile
launchedMissileCurrentStatusEvent.SetFinalInfo(targetLocation);
PostCurrentStatusEvent(launchedMissileCurrentStatusEvent);
}
public async Task SendMissileStatusUpdatedMessage(
LaunchedMissileCurrentStatusEvent missileStatusEvent)
{
if (missileStatusEvent == null)
{
return;
}
// Send message to all connected clients
await Clients.All.SendAsync(MissileStatusUpdatedMessage, missileStatusEvent);
}
private void PostSignalRMessage(LaunchedMissileCurrentStatusEvent eventMessage)
{
if (eventMessage == null)
{
return;
}
using (var client = clientFactory.CreateClient())
{
var uri = configuration.GetValue <String>("ApiPath:Mgcc");
var eventJson = JsonConvert.SerializeObject(eventMessage);
var contentToPost = new StringContent(eventJson, Encoding.UTF8, "application/json");
var postResult = client.PostAsync(uri, contentToPost).Result;
}
}
private void PostCurrentStatusEvent(LaunchedMissileCurrentStatusEvent eventMessage)
{
if (eventMessage == null)
{
return;
}
// TODO: Extract delay simulation from this method
// TODO: Add random delay
// 1 second delay
Thread.Sleep(1000);
// Post SignalR message with current status and GPS coordinates
// of launched missile so it can be handled on UI map.
PostSignalRMessage(eventMessage);
// If this is final event - also post message to Missile Finished Queue of Message Bus
if (eventMessage.IsFinished)
{
PostMissileFinishedEvent(eventMessage);
}
}
/// <summary>
/// Message produced by this method will be used by Reporting service.
/// </summary>
private void PostMissileFinishedEvent(LaunchedMissileCurrentStatusEvent eventMessage)
{
if (eventMessage == null || !eventMessage.IsFinished)
{
return;
}
// Publish missile finished message
var finishedMissilesQueue = configuration
.GetValue <String>("MessageBusSettings:Queues:FinishedMissilesQueue");
// TODO: Add more info
var missileFinishedEvent = new MissileFinishedEvent
{
MissileId = eventMessage.MissileId,
MissileServiceIdentityNumber = eventMessage.MissileServiceIdentityNumber,
MissileName = eventMessage.MissileName,
MissileStatus = eventMessage.MissileStatus,
MissileFinishedAtLocation = eventMessage.MissileGpsLocation,
MissileFinishedAtDate = eventMessage.InformationPostedDate
};
messageBus.PublishMessage(finishedMissilesQueue, missileFinishedEvent);
}
public async Task Post([FromBody] LaunchedMissileCurrentStatusEvent eventMessage)
{
// Send SignalR message with current missile status
await hubContext.Clients.All.SendAsync(MissileStatusHub.MissileStatusUpdatedMessage,
eventMessage);
}
