/// <summary>
/// Populate a stnadard sentItem model from database into a Postcard object
/// </summary>
/// <param name="sentItem"></param>
/// <returns></returns>
private PostCard PopulatePostCardItem(SentItem sentItem)
{
var postcard = new PostCard();
postcard.FrontHtml = sentItem.FrontHtml;
postcard.BackHtml = sentItem.BackHtml;
postcard.ToAddress = this.GetAddressFromRecipientProfile(sentItem.RecipientProfile);
postcard.FromAddress = this.GetAddressFromRecipientProfile(sentItem.FromRecipient);
return(postcard);
}
/// <summary>
/// Transfer a sentItem model from database to a standard letter
/// </summary>
/// <param name="sentItem"></param>
/// <returns></returns>
private Letter PopulateLetterItem(SentItem sentItem)
{
var letter = new Letter();
letter.FrontHtml = sentItem.FrontHtml;
letter.BackHtml = sentItem.BackHtml;
letter.ToAddress = this.GetAddressFromRecipientProfile(sentItem.RecipientProfile);
letter.FromAddress = this.GetAddressFromRecipientProfile(sentItem.FromRecipient);
return(letter);
}
/// <summary>
/// Handle the populating of database model object to the relevant PostCard, Letter model for processing
/// </summary>
/// <param name="sentItem"></param>
/// <returns></returns>
private IPostItem PopulateSendItem(SentItem sentItem)
{
switch (sentItem.ItemTypeId)
{
case ItemType.PostCard:
return(PopulatePostCardItem(sentItem));
case ItemType.Letter:
return(PopulateLetterItem(sentItem));
default:
throw new UnsupportedPostItemException();
}
}
/// <summary>
/// Method to send an item and control the state
/// </summary>
/// <param name="sentItem"></param>
private void SendItem(SentItem sentItem)
{
// Get the service necessary for the given country
IPostService postService = this.GetServiceForCountry(sentItem.RecipientProfile.CountryId);
// populate the item into a sendItem
IPostItem postItem = this.PopulateSendItem(sentItem);
// Validate the item can be sent
string outputMessage;
if (postService.ValidatePostItem(postItem, out outputMessage))
{
// Update to sending item status to SendingMail
using (var db = new PostessDB())
using (TransactionScope scope = new TransactionScope(TransactionScopeOption.Required, new TransactionOptions {
IsolationLevel = IsolationLevel.RepeatableRead
}))
{
var sentItemDB = db.SentItems.Find(sentItem.Id);
// Do not attempt to send if the item is not in a default state
if (sentItemDB.SentItemStateId == SentItemState.SendingMail ||
sentItemDB.SentItemStateId == SentItemState.MailSent ||
sentItemDB.SentItemStateId == SentItemState.MailSendingError
)
{
return;
}
sentItemDB.SentItemStateId = SentItemState.SendingMail;
db.SaveChanges();
}
try
{
postService.SendPost(postItem);
}
catch (Exception e)
{
// Update sending item status to MailSendingError
using (var db = new PostessDB())
{
// Mail sending error
var sentItemDB = db.SentItems.Find(sentItem.Id);
sentItemDB.SentItemStateId = SentItemState.MailSendingError;
db.SaveChanges();
}
}
// Update sending item status to SendingSuccess
using (var db = new PostessDB())
{
var sentItemDB = db.SentItems.Find(sentItem.Id);
sentItemDB.SentItemStateId = SentItemState.MailSent;
db.SaveChanges();
}
}
else
{
// Process that this item could not be sent because of outputMessage
}
}
