/// <summary>
/// get the maximum number of LX that can be purchased by groupNumber during the public sale
/// </summary>
/// <param name="groupNumber"></param>
/// <returns></returns>
public static BigInteger GetGroupMaxContribution(BigInteger groupNumber)
{
StorageMap contributionLimits = Storage.CurrentContext.CreateMap(StorageKeys.GroupContributionAmountPrefix());
BigInteger maxContribution = contributionLimits.Get(groupNumber.AsByteArray()).AsBigInteger();
if (maxContribution > 0)
{
return(maxContribution);
}
return(ICOContract.MaximumContributionAmount());
}
/// <summary>
/// allow administrator to set the maximum contribution amount allowed for a presale group
/// </summary>
/// <param name="groupNumber"></param>
/// <param name="maxContribution">max number of LX that can be purchased by this group</param>
/// <returns></returns>
public static bool SetGroupMaxContribution(BigInteger groupNumber, uint maxContribution)
{
if (groupNumber <= 0 || maxContribution <= 0)
{
return(false);
}
if (Helpers.VerifyIsAdminAccount())
{
StorageMap contributionLimits = Storage.CurrentContext.CreateMap(StorageKeys.GroupContributionAmountPrefix());
contributionLimits.Put(groupNumber.AsByteArray(), maxContribution);
return(true);
}
return(false);
}