async Task <PlanViewModel> CheckForExceptionsAsync(SubscribesIndexViewModel indexModel, PlanViewModel selectedPlan)
{
if (indexModel.Current != null)
{
//目前仍在訂閱期
throw new CreateWhileCurrentSubscribeExist(CurrentUserId);
}
if (indexModel.Plan == null)
{
throw new Exception();
}
var activePlan = indexModel.Plan;
if (selectedPlan.Id != activePlan.Id)
{
//找不到指定的方案
throw new SelectedPlanDifferentFromActivePlan(selectedPlan.Id, activePlan.Id);
}
//查看是否已經有帳單未繳
var bills = await _billsService.FetchByUserAsync(new User { Id = CurrentUserId }, new Plan { Id = selectedPlan.Id });
if (bills.HasItems())
{
//帳單有繳的話, 應該在訂閱期內
//所以應該只會有未繳的
var unPayedBills = bills.Where(x => !x.Payed).ToList();
if (unPayedBills.IsNullOrEmpty())
{
//沒有未繳帳單,異常
//例外
_logger.LogException(new BillPayedButNoCurrentSubscribe(new User {
Id = CurrentUserId
}, new Plan {
Id = selectedPlan.Id
}));
}
//有未繳帳單或帳單異常
//試圖建立第二張帳單
throw new TryToCreateSecondValidBill(new User {
Id = CurrentUserId
}, new Plan {
Id = selectedPlan.Id
});
}
if (selectedPlan.Price != activePlan.Price)
{
//金額不對
throw new SelectedPriceDifferentFromActivePlan(selectedPlan.Id, activePlan.Id);
}
return(activePlan);
}
public async Task <SubscribesIndexViewModel> GetSubscribesIndexViewAsync(string userId, bool allData = false)
{
var subscribes = await _subscribesService.FetchByUserAsync(userId);
var model = new SubscribesIndexViewModel();
if (subscribes.HasItems())
{
subscribes = subscribes.GetOrdered();
//User訂閱紀錄
model.Records = subscribes.MapViewModelList(_mapper);
//訂閱期之內(Active)的訂閱紀錄
var activeSubscribe = subscribes.Where(item => item.Active).FirstOrDefault();
if (activeSubscribe != null)
{
model.Current = activeSubscribe.MapViewModel(_mapper);
}
}
if (model.Current == null)
{
//目前不在訂閱期
var plan = await FindActivePlanAsync();
if (plan != null)
{
bool canDiscount = subscribes.HasItems();
model.Plan = plan.MapViewModel(_mapper, canDiscount);
}
}
if (allData)
{
var bills = await _billsService.FetchByUserAsync(userId);
if (bills.HasItems())
{
bills = bills.OrderByDescending(x => x.CreatedAt);
}
model.Bills = bills.MapViewModelList(_mapper);
var payways = (await _paysService.FetchPayWaysAsync()).GetOrdered();
model.PayWays = payways.MapViewModelList(_mapper);
}
return(model);
}
async Task <SubscribesIndexViewModel> GetIndexViewAsync()
{
var subscribes = await _subscribesService.FetchByUserAsync(CurrentUserId);
var model = new SubscribesIndexViewModel();
if (subscribes.HasItems())
{
subscribes = subscribes.GetOrdered();
//User訂閱紀錄
model.Records = subscribes.MapViewModelList(_mapper);
//訂閱期之內(Active)的訂閱紀錄
var activeSubscribe = subscribes.Where(item => item.Active).FirstOrDefault();
if (activeSubscribe != null)
{
model.Current = activeSubscribe.MapViewModel(_mapper);
}
}
if (model.Current == null)
{
//目前不在訂閱期
var plan = await FindPlanAsync();
if (plan != null)
{
bool canDiscount = subscribes.HasItems();
model.Plan = plan.MapViewModel(_mapper, canDiscount);
}
}
return(model);
}
