private void ValidateInput(BusInput input)
{
if (input.XCoordinate == null || input.YCoordinate == null || input.RouteId == null || input.IMEI == null)
{
throw new ArgumentException("A Route ID and X and Y coordinates must be included in the body of the request.");
}
}
public async Task <IActionResult> PostBusLocation(BusInput input)
{
ValidateInput(input);
var buses = _context.Buses.Where(b => b.IMEI == input.IMEI.Value).ToList();
if (buses.Count == 0)
{
var bus = await _busManager.GetNewBus(input);
_context.Buses.Add(bus);
}
else if (buses.Count == 1)
{
await _busManager.UpdateExistingBus(buses[0], input);
}
else
{
throw new ArgumentException($"Multiple buses were found with IMEI number '{input.IMEI}'! None were updated.");
}
await _context.SaveChangesAsync();
return(Ok());
}
/// <summary>
/// Create a new <see cref="Bus"/> from the data given in the POST request
/// </summary>
/// <param name="input">The input <see cref="BusInput"/> from the request</param>
/// <returns>A new <see cref="Bus"/></returns>
public async Task <Bus> GetNewBus(BusInput input)
{
var route = await _context.Routes.FindAsync(input.RouteId);
var nextSchedule = GetNextSchedule(route, DateTime.Now.TimeOfDay);
return(new Bus
{
XCoordinate = input.XCoordinate.Value,
YCoordinate = input.YCoordinate.Value,
RouteId = input.RouteId.Value,
TripId = nextSchedule.TripId,
IMEI = input.IMEI.Value,
InactiveFlag = input.RouteId.Value == 0 ? true : false
});
}
/// <summary>
/// Set the <see cref="Bus"/> attributes based on the given <see cref="BusInput"/>
/// </summary>
/// <param name="bus">The bus to update</param>
/// <param name="input">The input <see cref="BusInput"/> from the request</param>
public async Task UpdateExistingBus(Bus bus, BusInput input)
{
bus.XCoordinate = input.XCoordinate.Value;
bus.YCoordinate = input.YCoordinate.Value;
bus.RouteId = input.RouteId.Value;
bus.InactiveFlag = input.RouteId.Value == 0 ? true : false;
var route = await _context.Routes.FindAsync(input.RouteId);
var closestStop = GetClosestStop(bus, route);
if (closestStop != null)
{
bus.LastStopId = closestStop.StopId;
bus.LastStopTime = DateTime.Now.TimeOfDay;
if (closestStop.FirstStopFlg)
{
var firstStopSchedules = route.Schedules.Where(s => s.Stop.FirstStopFlg);
var closestSchedule = GetClosestSchedule(firstStopSchedules, DateTime.Now.TimeOfDay);
bus.TripId = closestSchedule.TripId;
}
}
}