/// <summary>
/// Verifies and stores the map in the database
/// </summary>
/// <param name="key">Player secret key</param>
/// <param name="cells">Selected ship cells on the map</param>
public void UpdateMap(string key, List <Point> cells)
{
var player = _entities.Players.Include(t => t.Cells).FirstOrDefault(t => t.Key == key);
if (player == null)
{
throw new KeyNotFoundException("Player with key " + key + " not found.");
}
if (player.MapValidated)
{
throw new EntityValidationException("Map changes are not allowed.");
}
var shipMap = new ShipMap();
shipMap.ParseShips(cells);
shipMap.Validate();
player.MapValidated = true;
var newCells = cells.Select(t => new ShipCell(t.X, t.Y)
{
PlayerId = player.Id
});
_entities.ShipCells.RemoveRange(player.Cells);
_entities.ShipCells.AddRange(newCells);
using (var transaction = _entities.Database.BeginTransaction())
{
try
{
_entities.SaveChanges();
transaction.Commit();
}
catch (DbEntityValidationException exception)
{
transaction.Rollback();
throw new EntityValidationException(exception);
}
}
}