using System.Data.SqlClient;

namespace SDA.DataProvider.MSSQLWrappers
{
    class MSSQLExceptionHelper
    {
        public static SDADataProviderException TranslateSqlException(SqlException exception)
        {
            return TranslateSqlException(exception, "");
        }

        public static SDADataProviderException TranslateSqlException(SqlException exception, string commandText)
        {
            switch ((MSSQLErrors)exception.Number)
            {
                case MSSQLErrors.ForeignKeyViolation:
                    return new ForeignKeyViolationException(exception, exception.Number, commandText);
                case MSSQLErrors.UniqueKeyViolation:
                case MSSQLErrors.CannotInsertDuplicateKeyRow:
                    return new UniqueKeyViolationException(exception, exception.Number, commandText);
                case MSSQLErrors.DeadlockDetected:
                    return new DeadlockException(exception, exception.Number, commandText);
                case MSSQLErrors.CommandTimeout:
                    return new CommandTimeoutException(exception, exception.Number, commandText);
                case MSSQLErrors.TableOrViewDoesNotExist:
                    return new TableOrViewNotExistsException(exception, exception.Number, commandText);
                case MSSQLErrors.UntitledCommunicationError:
                case MSSQLErrors.PreLoginHandshake:
                case MSSQLErrors.ConnectionError:
                    return new CommunicationErrorException(exception, exception.Number, false);
                default:
                    return new SDADataProviderException(exception, SDADataProviderError.Unknown, exception.Number, commandText);
            }
        }
    }

    enum MSSQLErrors
    {
        CommandTimeout = -2,
        ForeignKeyViolation = 547,
        UniqueKeyViolation = 2627,
        CannotInsertDuplicateKeyRow = 2601,
        CannotInsertNull = 515,
        TableOrViewDoesNotExist = 208,
        ConnectionError = 1231,
        PreLoginHandshake = 10054,
        UntitledCommunicationError = 2,
        DeadlockDetected = 1205,
    }
}