public Task<PaymentProcessingResults> ExecuteAsync(PaymentProcessingData data)
{
using (PaymentsPerformanceLogger.Instance.Log(typeof(ProcessPaymentProcessingData)))
{
data.AssertNotNull("data");
var subscriberId = data.SubscriberId;
var creatorId = data.CreatorId;
DateTime startTimeInclusive = data.StartTimeInclusive;
DateTime endTimeExclusive = data.EndTimeExclusive;
IReadOnlyList<ISnapshot> orderedSnapshots = data.GetOrderedSnapshots();
IReadOnlyList<CreatorPost> posts = data.CreatorPosts;
var committedAccountBalance = data.CommittedAccountBalance;
var currentStartTimeInclusive = startTimeInclusive;
var currentEndTimeExclusive = startTimeInclusive.AddDays(7);
// This is the final time at which we can be totally sure if the creator
// has posted in the billing week, as the subscriber billing week most likely
// doesn't line up with the payment billing week.
var committedRecordsEndTimeExclusive = endTimeExclusive.AddDays(-7);
var result = new List<PaymentProcessingResult>();
while (currentEndTimeExclusive <= committedRecordsEndTimeExclusive)
{
// Calculate complete week.
var cost = this.subscriberPaymentPipeline.CalculatePayment(
orderedSnapshots,
posts,
subscriberId,
creatorId,
currentStartTimeInclusive,
currentEndTimeExclusive);
if (cost.Cost > committedAccountBalance.Amount)
{
cost = new AggregateCostSummary(committedAccountBalance.Amount);
}
committedAccountBalance = committedAccountBalance.Subtract(cost.Cost);
var creatorPercentageOverride = PaymentProcessingUtilities.GetCreatorPercentageOverride(
data.CreatorPercentageOverride,
currentEndTimeExclusive);
result.Add(new PaymentProcessingResult(currentStartTimeInclusive, currentEndTimeExclusive, cost, creatorPercentageOverride, true));
currentStartTimeInclusive = currentEndTimeExclusive;
currentEndTimeExclusive = currentStartTimeInclusive.AddDays(7);
}
if (currentStartTimeInclusive < endTimeExclusive)
{
// Calculate uncommitted period.
// We calculate without taking into account CreatorPosts,
// as we assume they will post until we can be totally sure
// know otherwise.
var cost = this.subscriberPaymentPipeline.CalculatePayment(
orderedSnapshots,
null,
subscriberId,
creatorId,
currentStartTimeInclusive,
endTimeExclusive);
var creatorPercentageOverride = PaymentProcessingUtilities.GetCreatorPercentageOverride(
data.CreatorPercentageOverride,
endTimeExclusive);
result.Add(new PaymentProcessingResult(currentStartTimeInclusive, endTimeExclusive, cost, creatorPercentageOverride, false));
}
return Task.FromResult(new PaymentProcessingResults(committedAccountBalance, result));
}
}
