/// <summary>
/// Applies business rules to a partner offer.
/// </summary>
/// <param name="partnerOffer">The partner offer to normalize.</param>
public void Normalize(PartnerOffer partnerOffer)
{
partnerOffer.AssertNotNull(nameof(partnerOffer));
// ensure the Microsoft offer ID and other required properties are set
Guid offerId;
if (!Guid.TryParse(partnerOffer.Id, out offerId))
{
throw new PartnerDomainException(ErrorCode.InvalidInput, Resources.IdMustBeAValidGUID).AddDetail("Field", "Id");
}
if (string.IsNullOrWhiteSpace(partnerOffer.MicrosoftOfferId))
{
throw new PartnerDomainException(ErrorCode.InvalidInput, Resources.MicrosoftOfferIdMustBeSet).AddDetail("Field", "MicrosoftOfferId");
}
partnerOffer.Title.AssertNotEmpty("Offer title");
if (partnerOffer.Price <= 0)
{
throw new PartnerDomainException(ErrorCode.InvalidInput, Resources.OfferPriceShouldBeMoreThanZero).AddDetail("Field", "Price");
}
// flatten the offer price based on locale decimal settings.
partnerOffer.Price = Math.Round(partnerOffer.Price, Resources.Culture.NumberFormat.CurrencyDecimalDigits, MidpointRounding.AwayFromZero);
partnerOffer.Features = PartnerOfferNormalizer.CleanupEmptyEntries(partnerOffer.Features);
partnerOffer.Summary = PartnerOfferNormalizer.CleanupEmptyEntries(partnerOffer.Summary);
}
/// <summary>
/// Retrieves all the partner offers from persistence.
/// </summary>
/// <returns>The partner offers.</returns>
public async Task <IEnumerable <PartnerOffer> > RetrieveAsync()
{
List <PartnerOffer> partnerOffers = await ApplicationDomain.CachingService
.FetchAsync <List <PartnerOffer> >(PartnerOffersCacheKey).ConfigureAwait(false);
if (partnerOffers == null)
{
CloudBlockBlob partnerOffersBlob = await GetPartnerOffersBlobAsync().ConfigureAwait(false);
if (await partnerOffersBlob.ExistsAsync().ConfigureAwait(false))
{
// download the partner offer BLOB
MemoryStream partnerOffersStream = new MemoryStream();
await partnerOffersBlob.DownloadToStreamAsync(partnerOffersStream).ConfigureAwait(false);
partnerOffersStream.Seek(0, SeekOrigin.Begin);
// deserialize the BLOB into a list of Partner offer objects
partnerOffers =
JsonConvert.DeserializeObject <List <PartnerOffer> >(await new StreamReader(partnerOffersStream).ReadToEndAsync().ConfigureAwait(false));
if (partnerOffers != null && partnerOffers.Count > 0)
{
// apply business rules to the offers
PartnerOfferNormalizer offerNormalizer = new PartnerOfferNormalizer();
foreach (PartnerOffer partnerOffer in partnerOffers)
{
offerNormalizer.Normalize(partnerOffer);
}
}
}
partnerOffers = partnerOffers ?? new List <PartnerOffer>();
// cache the partner offers
await ApplicationDomain.CachingService.StoreAsync(
PartnerOffersCacheKey,
partnerOffers).ConfigureAwait(false);
}
return(partnerOffers);
}
