public async Task <MemberSubscription> PurchaseSubscription(Guid memberId, Guid chapterSubscriptionId, string cardToken)
{
ChapterSubscription chapterSubscription = await _chapterRepository.GetChapterSubscription(chapterSubscriptionId);
if (chapterSubscription == null)
{
throw new OdkServiceException("Subscription not found");
}
Member member = await GetMember(memberId);
await _authorizationService.AssertMemberIsChapterMember(member, chapterSubscription.ChapterId);
await _paymentService.MakePayment(member, chapterSubscription.Amount, cardToken, chapterSubscription.Title);
MemberSubscription memberSubscription = await _memberRepository.GetMemberSubscription(member.Id);
DateTime expiryDate = (memberSubscription?.ExpiryDate ?? DateTime.UtcNow).AddMonths(chapterSubscription.Months);
memberSubscription = new MemberSubscription(member.Id, chapterSubscription.Type, expiryDate);
await _memberRepository.UpdateMemberSubscription(memberSubscription);
MemberSubscriptionRecord record = new MemberSubscriptionRecord(memberId, chapterSubscription.Type, DateTime.UtcNow,
chapterSubscription.Amount, chapterSubscription.Months);
await _memberRepository.AddMemberSubscriptionRecord(record);
_cacheService.UpdatedVersionedItem(memberSubscription, memberId);
_cacheService.RemoveVersionedCollection <Member>(member.ChapterId);
return(memberSubscription);
}