public static void AddRoad(DTO.Road newRoad)
{
CitiesAndRoadsDbContext db = new CitiesAndRoadsDbContext();
if (newRoad.Length == 0)
{
throw new CustomException("Road requires actual length.");
}
if (newRoad.SideCityOneId == newRoad.SideCityTwoId)
{
throw new CustomException("Cities must be different.");
}
if (DoesRoadExist(newRoad, db))
{
throw new CustomException("Road already exist.");
}
var road = new Road();
road.Length = newRoad.Length;
road.SideCityOneId = newRoad.SideCityOneId;
road.SideCityTwoId = newRoad.SideCityTwoId;
db.Roads.Add(road);
db.SaveChanges();
}
private static bool DoesRoadExist(DTO.Road newRoad, CitiesAndRoadsDbContext db)
{
return(db.Roads.Any(r =>
(r.SideCityOneId == newRoad.SideCityOneId &&
r.SideCityTwoId == newRoad.SideCityTwoId) ||
(r.SideCityOneId == newRoad.SideCityTwoId &&
r.SideCityTwoId == newRoad.SideCityOneId)));
}
public static void AddRoad(DTO.Road road)
{
try
{
RoadsRepository.AddRoad(road);
}
catch (Exception ex)
{
// Log it
throw;
}
}
public static string GetLogisticCentername()
{
IEnumerable <DTO.City> cities = GetCities();
DTO.City logisticCenter = cities.FirstOrDefault(c => c.IsLogisticCenter == true);
IEnumerable <DTO.Road> roads = RoadsManager.GetRoads();
IEnumerable <DTO.Road> connectedRoadsTmp = null;
DTO.Road furthestRoad = new DTO.Road();
int newLogisticCenterId = 0;
foreach (DTO.City city in cities)
{
connectedRoadsTmp = roads.Where(r => r.SideCityOneId == city.Id || r.SideCityTwoId == city.Id);
if (connectedRoadsTmp != null && connectedRoadsTmp.Count() > 0)
{
DTO.Road closestRoadTmp = connectedRoadsTmp.OrderBy(r => r.Length).First();
if (closestRoadTmp.Length > furthestRoad.Length)
{
furthestRoad = closestRoadTmp;
// Get logistic center city id which is opposite side of the furthest city
newLogisticCenterId = city.Id == furthestRoad.SideCityOneId ? furthestRoad.SideCityTwoId : furthestRoad.SideCityOneId;
}
}
}
if (logisticCenter != null && logisticCenter.Id == newLogisticCenterId)
{
throw new CustomException("Logistic center hasn't changed.");
}
else if (newLogisticCenterId == 0)
{
throw new CustomException("Logistic center doesn't exist.");
}
else
{
logisticCenter = cities.First(c => c.Id == newLogisticCenterId);
CitiesRepository.SetLogisticCenter(logisticCenter);
}
return(logisticCenter.Name);
}
public static List <DTO.Road> GetRoads()
{
CitiesAndRoadsDbContext db = new CitiesAndRoadsDbContext();
List <Road> dbRoads = db.Roads.Include("SideCityOne").Include("SideCityTwo").OrderBy(r => r.Length).ToList();
List <DTO.Road> dtoRoads = new List <DTO.Road>();
foreach (Road item in dbRoads)
{
var road = new DTO.Road();
road.Id = item.Id;
road.Length = item.Length;
road.SideCityOneId = item.SideCityOneId;
road.SideCityOneName = item.SideCityOne.Name;
road.SideCityTwoId = item.SideCityTwoId;
road.SideCityTwoName = item.SideCityTwo.Name;
dtoRoads.Add(road);
}
return(dtoRoads);
}
