/// <summary>
/// This method removes product from user's bundle
/// </summary>
/// <remarks>
/// This method uses DB stored procedure <note type="important">stp_RemoveProduct</note>
/// to remove a product for a User in DB. And then returns selected and not selected products.
/// </remarks>
/// <param name="userId">User Id</param>
/// <param name="productId">Product Id</param>
/// <returns>A HttpResponseMessage with a HttpStatusCode and user's selected and not selected products</returns>
public HttpResponseMessage DeleteProduct(int userId, int productId)
{
XmlDocument retXml = new XmlDocument();
DBLib db = new DBLib();
db.AddProcedure("stp_RemoveProduct");
db.AddParameter("@UserID", SqlDbType.Int, userId);
db.AddParameter("@ProductID", SqlDbType.Int, productId);
retXml = db.GetResultAsXmlDocument();
var response = Request.CreateResponse <XmlDocument>(HttpStatusCode.OK, retXml);
return(response);
}
/// <summary>
/// This method from provided user information offers the best product bundle for him
/// </summary>
/// <remarks>
/// By provided user information, method uses DB stored procedure <note type="important">stp_GetBundle</note>
/// to save user's information and best bundle for him. And then returns bundle's products.
/// </remarks>
/// <param name="age">User age</param>
/// <param name="student">Is user a student information (1-yes, 0-no)</param>
/// <param name="income">User income</param>
/// <returns>A HttpResponseMessage with a HttpStatusCode, the best bundle's products and all other products</returns>
public HttpResponseMessage PostBundle(int age, int student, int income)
{
XmlDocument retXml = new XmlDocument();
DBLib db = new DBLib();
db.AddProcedure("stp_GetBundle");
db.AddParameter("@Age", SqlDbType.Int, age);
db.AddParameter("@Student", SqlDbType.Bit, student);
db.AddParameter("@Income", SqlDbType.Int, income);
retXml = db.GetResultAsXmlDocument();
var response = Request.CreateResponse <XmlDocument>(HttpStatusCode.Created, retXml);
return(response);
}
/// <summary>
/// This method confirms if user's selected products are valid for him
/// </summary>
/// <remarks>
/// By provided user Id, method uses DB stored procedure <note type="important">stp_GetUserInfo</note>
/// to get information
/// about the user and his selected products. And then confirm if all selected products are
/// valid for him.
/// </remarks>
/// <param name="id">The Id of the user, whose selected products must be confirmed</param>
/// <exception cref="Exception">
/// This is thrown if the UserID node in retXml parameter is null.
/// </exception>
/// <returns>A HttpResponseMessage with a HttpStatusCode and bundle confirmation message</returns>
public HttpResponseMessage GetBundleConfirm(int id)
{
try
{
string message = "Bundle CONFIRMED";
HttpStatusCode respCode = HttpStatusCode.OK;
XmlDocument retXml = new XmlDocument();
DBLib db = new DBLib();
db.AddProcedure("stp_GetUserInfo");
db.AddParameter("@UserID", SqlDbType.Int, id);
retXml = db.GetResultAsXmlDocument();
if (retXml.SelectSingleNode("Root/UserID") == null)
{
throw new Exception("User not found");
}
//Fill user data
int age = int.Parse(retXml.SelectSingleNode("Root/Age").InnerText);
int student = int.Parse(retXml.SelectSingleNode("Root/Student").InnerText);
int income = int.Parse(retXml.SelectSingleNode("Root/Income").InnerText);
//All products
Product[] products = new Product[]
{
new Product {
Id = 1, Name = "Current Account", Type = ProdType.Account, AgeFrom = 17, AgeTo = 999, Student = -1, Income = 1
},
new Product {
Id = 2, Name = "Current Account Plus", Type = ProdType.Account, AgeFrom = 17, AgeTo = 999, Student = -1, Income = 40001
},
new Product {
Id = 3, Name = "Junior Saver Account", Type = ProdType.Account, AgeFrom = 0, AgeTo = 17, Student = -1, Income = 0
},
new Product {
Id = 4, Name = "Student Account", Type = ProdType.Account, AgeFrom = 17, AgeTo = 999, Student = 1, Income = 0
},
new Product {
Id = 5, Name = "Debit Card", Type = ProdType.Card, AgeFrom = 0, AgeTo = 999, Student = -1, Income = 0
},
new Product {
Id = 6, Name = "Credit Card", Type = ProdType.Card, AgeFrom = 18, AgeTo = 999, Student = -1, Income = 12001
},
new Product {
Id = 7, Name = "Gold Credit Card", Type = ProdType.Card, AgeFrom = 18, AgeTo = 999, Student = -1, Income = 40001
}
};
//Filter only user products
var userProducts = products.Where(p => XDocument.Load(new XmlNodeReader(retXml)).Descendants("Id").Select(element => element.Value).ToArray().Contains(p.Id.ToString()));
//Check if at least one product selected
if (userProducts.Count() == 0)
{
message = "Zero products selected";
respCode = HttpStatusCode.BadRequest;
}
//Check if there are more than one acount product
if (userProducts.Count(p => p.Type == ProdType.Account) > 1)
{
message = "You can have only one Account type product";
respCode = HttpStatusCode.BadRequest;
}
else
{
//Check each product validity
foreach (var product in userProducts)
{
//Debit card
if (product.Id == 5)
{
//No Current Account, Current Account Plus or Student Account selected
if (userProducts.Count(p => new string[] { "1", "2", "3" }.Contains(p.Id.ToString())) == 0)
{
message = "No Current Account, Current Account Plus or Student Account selected";
respCode = HttpStatusCode.BadRequest;
break;
}
}
//Not debit card
else
{
if (!(income >= product.Income && age >= product.AgeFrom && age <= product.AgeTo && (product.Student == -1 || student == product.Student)))
{
message = "You are not valid for product - " + product.Name;
respCode = HttpStatusCode.BadRequest;
break;
}
}
}
}
var response = Request.CreateResponse <string>(respCode, message);
return(response);
}
catch (Exception e)
{
var response = Request.CreateResponse <string>(HttpStatusCode.NotFound, e.Message);
return(response);
}
}