private async Task SetPrepay()
{
var isAmountCash = false;
var grade = GradeTypes.ElementAt(SelectedGradeIndex);
if (!CacheBusinessLogic.SupportCashCreditpricing)
{
isAmountCash = true;
}
else
{
isAmountCash = CashTypes.ElementAt(SelectedCashIndex).Equals("Cash");
}
var response = await _fuelBusinessLogic.AddPrepay(_pumpId,
Amount, grade, isAmountCash);
MessengerInstance.Send(response.ToModel(), "UpdateSale");
PerformHomeNavigation();
}
/// <summary>
/// 通过构造方法传入收费类型，获取不同的收费策略
/// </summary>
/// <param name="super"></param>
public CashContext(CashTypes cashType)
{
switch (cashType)
{
case CashTypes.Nommarl:
_cashSuper = new CashNomarl();
break;
case CashTypes.Discount:
_cashSuper = new CashDiscount(0.8);
break;
case CashTypes.Return:
_cashSuper = new CashReturn(300, 10);
break;
default:
break;
}
}