public async Task <BankAccountGrainState> Close(BankAccountGrainState state)
{
var stateMachineData = BankAccountData.NewBalance(Balance.ZeroBalance);
var stateMachineState = BankAccountState.ClosedState;
return(await Task.FromResult(new BankAccountGrainState(stateMachineData, stateMachineState)));
}
public async Task <BankAccountGrainState> Deposit(BankAccountGrainState state, Amount amount)
{
var newBalance = state.StateMachineData.Match(_ => _.Item.Deposit(amount));
var stateMachineData = BankAccountData.NewBalance(newBalance);
var stateMachineState = BankAccountState.ActiveState;
return(await Task.FromResult(new BankAccountGrainState(stateMachineData, stateMachineState)));
}
public Task <ActiveWithdrawResult> Withdraw(BankAccountGrainState state, Amount amount)
{
var newBalance = state.StateMachineData.Match(_ => _.Item.Withdraw(amount));
var stateMachineData = BankAccountData.NewBalance(newBalance);
var stateMachineState = newBalance.IsZeroBalance
? ActiveWithdrawResultState.ZeroBalanceState
: (newBalance.IsOverdrawnBalance
? ActiveWithdrawResultState.OverdrawnState
: ActiveWithdrawResultState.ActiveState);
return(Task.FromResult(new ActiveWithdrawResult(stateMachineData, stateMachineState)));
}