/// <summary>
/// Redeems a code for a user and gives him the game
/// </summary>
/// <param name="user">id of user</param>
/// <param name="code">code string</param>
/// <returns>-1 if code was already redeemed or invalid else the id of the game that user bought</returns>
public static int RedeemCode(int user, string code)
{
if (!DbGameCodes.CodeUnredeemed(code))
{
return(-1);
}
if (!DbGameCodes.UseGameCode(code, user))
{
return(-1);
}
int game = DbGameCodes.GetGameFromCode(code);
UserGame.AddGame(user, game, 0);
return(game);
}
