/// <summary>
/// Returns a <see cref="Contract"/> instance for one of the known cryptokitty contracts.
/// </summary>
/// <param name="instance">The <see cref="EthApiContractService"/> being extended.</param>
/// <param name="contract">A <see cref="CryptoKittyContractType"/> identifying the desired contract.</param>
/// <returns>A <see cref="Contract"/> instance.</returns>
/// <exception cref="ArgumentOutOfRangeException">Thrown if <paramref name="contract"/> is not a recognized value.</exception>
/// <exception cref="InvalidOperationException">Thrown if there is some failure attaching to a valid contract.</exception>
public static Contract GetKittyContract(this EthApiContractService instance, CryptoKittyContractType contract)
{
// Note that ForContract will throw on an invalid contract type
var address = Globals.Contracts.Address.ForContract(contract);
// If we made it this far then we know we were givven a good contract
var ret = instance.GetContract(Globals.Contracts.ABI.ForContract(contract), address);
if (ret == null)
{
throw new InvalidOperationException(Res.FatalContractFailure);
}
return(ret);
}
/// <summary>
/// Returns the ABI for known cryptokitty contracts.
/// </summary>
/// <param name="contractType">A <see cref="CryptoKittyContractType"/> identifying the kitty contractType.</param>
/// <returns>A <see cref="string"/> that contains the specified ABI.</returns>
/// <exception cref="ArgumentOutOfRangeException">Thrown when <paramref name="contractType"/> is not a supported value.</exception>
public static string ForContract(CryptoKittyContractType contractType)
{
switch (contractType)
{
case CryptoKittyContractType.Core:
return(KittyCore);
case CryptoKittyContractType.Sales:
return(SalesAuction);
case CryptoKittyContractType.Siring:
return(SiringAuction);
}
throw new ArgumentOutOfRangeException(nameof(contractType), contractType, Res.UnsupportedKittyContractValue);
}
