public async Task StartBuildingAsync(string username, int buildingId)
{
var country = await _context.Countries.Include(c => c.InProgressBuildings)
.SingleAsync(c => c.ParentUser.UserName == username);
if (country.InProgressBuildings.Count > 0)
{
throw new InProgressException("The country already has a building in progress.");
}
var buildingType = await _context.BuildingTypes.FindAsync(buildingId);
if (buildingType == null)
{
throw new ArgumentOutOfRangeException(nameof(buildingId), "No such building id.");
}
if (buildingType.CostPearl > country.Pearls || buildingType.CostCoral > country.Corals)
{
throw new InvalidOperationException("Not enough money");
}
country.Pearls -= buildingType.CostPearl;
country.Corals -= buildingType.CostCoral;
var inProgressBuilding = new InProgressBuilding
{
ParentCountry = country,
Building = buildingType,
TimeLeft = KnownValues.DefaultBuildingTime
};
_context.InProgressBuildings.Add(inProgressBuilding);
await _context.SaveChangesAsync();
}
public async Task StartBuildingAsync(string username, int buildingId, CancellationToken turnEndWaitToken)
{
using (var lck = await _turnEndLock.ReaderLockAsync(turnEndWaitToken))
{
var country = await _context.Countries.Include(c => c.InProgressBuildings)
.ThenInclude(b => b.Building)
.SingleAsync(c => c.ParentUser.UserName == username);
if (country.InProgressBuildings.Any(b => b.Building.Id == buildingId))
{
throw new InProgressException("There is already a building of this type in progress.");
}
var buildingType = await _context.BuildingTypes.FindAsync(buildingId);
if (buildingType == null)
{
throw new ArgumentOutOfRangeException(nameof(buildingId), "No such building id.");
}
if (buildingType.CostPearl > country.Pearls || buildingType.CostCoral > country.Corals)
{
throw new InvalidOperationException("Not enough money");
}
country.Pearls -= buildingType.CostPearl;
country.Corals -= buildingType.CostCoral;
var inProgressBuilding = new InProgressBuilding
{
ParentCountry = country,
Building = buildingType,
TimeLeft = KnownValues.DefaultBuildingTime
};
_context.InProgressBuildings.Add(inProgressBuilding);
await _context.SaveChangesAsync();
}
}
