/// <summary>
/// Denne metode henter alt dataen fra Databasens table "Customer" plus lidt fra tablet
/// "ArtTrade" og laver det om til en liste af ClassCustomer's
/// </summary>
/// <param name="inCurrency"></param>
/// <returns></returns>
public List <ClassCustomer> GetAllCustomerFromDB(ClassCurrency inCurrency)
{
List <ClassCustomer> listCCres = new List <ClassCustomer>();
SqlCommand cmd = new SqlCommand();
cmd.Connection = con;
cmd.CommandType = CommandType.StoredProcedure;
cmd.CommandText = "spGetAllCustomerFromDB";
DataTable dataTable = MakeCallToStoredProcedure(cmd);
foreach (DataRow row in dataTable.Rows)
{
ClassCustomer customer = new ClassCustomer();
customer.customerID = Convert.ToInt32(row["id"]);
customer.name = row["name"].ToString();
customer.address = row["address"].ToString();
customer.zipCity = row["zipCity"].ToString();
customer.country = row["country"].ToString();
customer.email = row["email"].ToString();
customer.phoneNo = row["phone"].ToString();
customer.classSalesValue.bidUSD = row["maximumBid"].ToString();
customer.customerCurrencyID = row["preferredCurrency"].ToString();
customer.isActive = Convert.ToBoolean(row["isActive"]);
listCCres.Add(customer);
}
return(listCCres);
}
public ClassBiz()
{
classCurrency = new ClassCurrency();
GetAllCurrencyIdAndNames();
classCustomer = new ClassCustomer();
classCustomer.classCurrency = classCurrency;
listCustomer = classWorldArtSaleDB.GetAllCustomerFromDB(classCurrency);
listClassArt = classWorldArtSaleDB.GetAllArtFromDB();
}
public async Task StartCurrencyApiCall()
{
while (runUpdate)
{
// GetURLContents returns the contents of url as a byte array.
byte[] urlContents = await classCallWebAPI.GetURLContentsAsync("https://openexchangerates.org/api/latest.json?app_id=09e34d204d7e4b998d7f178033b742ca");
string strJson = System.Text.Encoding.UTF8.GetString(urlContents);
classCurrency = JsonConvert.DeserializeObject <ClassCurrency>(strJson);
await Task.Delay(60000);
}
}
public ClassBIZ()
{
selectedCurrency = new ClassCurrency();
selectedCustomer = new ClassCustomer();
selectedArt = new ClassArt();
listClassArt = new List <ClassArt>();
listCustomer = new List <ClassCustomer>();
Task.Run(async() => await StartCurrencyApiCall());
classFile.ReadDataFromCurrencyFile();
listCustomer = classDB.GetAllCustomerFromDB(selectedCurrency);
listClassArt = classDB.GetAllArtFromDB();
}
/// <summary>
/// Kalder Api'en og smider dataen ind i en ClassCurrency.
/// Gentager sig selv vært 5 minut (hvært 10 sek for testing)
/// </summary>
/// <returns></returns>
public async Task StartCurrencyApiCall()
{
while (true)
{
byte[] urlContents = await classAPI.GetURLContentsAsync("https://openexchangerates.org/api/latest.json?app_id=5c02031ed690400cb11fe0224a861ad8&base=USD");
string strJason = System.Text.Encoding.UTF8.GetString(urlContents);
selectedCurrency = JsonConvert.DeserializeObject <ClassCurrency>(strJason);
//await Task.Delay(300000);
await Task.Delay(10000);
}
}
/// <summary>
/// This method calls our webapi.
/// The method is async to avoid any delays if the data from the api is delayed.
/// </summary>
/// <returns>List</returns>
public async Task <ClassCurrency> GetAllCurrenciesWebAPI()
{
ClassCurrency res = new ClassCurrency();
try
{
res = await classCallWebAPI.GetURLContentsAsync();
}
catch (Exception ex)
{
throw ex;
}
return(res);
}
public ClassBiz()
{
classCurrency = new ClassCurrency();
GetAllCurrencyIdAndNames();
ClassSalesValues csv = new ClassSalesValues();
csv.classCurrency = classCurrency;
classCustomer = new ClassCustomer();
listClassArt = new List <ClassArt>(getdata.classArt.ToList() as List <ClassArt>);
classArt = new ClassArt();
listCustomer = new List <ClassCustomer>(getdata.classCustomer.ToList() as List <ClassCustomer>);
ClassSalesValues = new ClassSalesValues();
listclassSalesValues = new List <ClassSalesValues>(getdata.classSalesValues.ToList() as List <ClassSalesValues>);
}
public ClassBIZ()
{
textLock = "true";
comboLock = "false";
classCallWebAPI = new ClassCallWebAPI();
classLuxYachtDieselDB = new ClassLuxYachtDieselDB();
currency = new ClassCurrency();
selectedCustomer = new ClassCustomer();
selectedSupplier = new ClassSupplier();
fallbackCustomer = new ClassCustomer();
fallbackSupplier = new ClassSupplier();
listCountry = GetAllCountries();
listDieselPrice = GetAllDieselPricesForListFromDB();
//country = new List<ClassCountry>();
listCustomers = GetAllCustomersForListFromDB();
listSupplier = GetAllSuplliersForListFromDB();
dieselPrice = GetDieselPriceFromDB();
order = new ClassOrder();
}
/// <summary>
/// This method creates the connection the webApi.
/// We make an instance of MemoryStream,
/// this is the object which contains the return of our request as a collection of bytes.
/// Create an abstract variable webReq which holds the actual request.
/// The request has to be made as a WebRequest which has to be casted to a HTTPWebRequest, this means we by force transform.
/// We do this as we can't make a HTTPWebRequest with the parameters that are available,
/// but as there is a overloaded constructor in the class which can convert a WebRequest into a HTTPWebRequest instance
/// we obtain that the communication between the application and the WEB API is via the HTTP protocol
/// The actual communication with the WEB API is wrapped in a "using",
/// as we want the actual connection to be closed properly after use without having to write to much code,
/// as using and GarbageCollector will do this for us.
/// In the first using we start the request, as we are communicating with and external device
/// we use await to imply that this part can be executed asynchronized.
/// This means that if the WEB API doesnt answer at once, the application will give the right to execute new actions,
/// to a new thread and as soon as the WEB API begins to answer,
/// this method will once again recieve the highed priority to execute actions.
/// the instance webReq has to be translated to a WebResponse, which is the object that holds the connection to the WEB API.
/// The instance response has to be translated to a Stream which,
/// handles the data packages which are recieved via the HTTP protocol.
/// The instance of our Stream(responseStream) also uses await as there can't be transfered data to our content
/// of datatype MemoryStream before all packages have been received from the WEB API
/// because content is not completely build until all packages are recieved. This is why we use async,
/// so the program doesnt freeze trying to deliver content to the gui, when not all data has been recieved.
/// When all packages are recieved we convert them to a MemoryStream.
/// Now we have to ensure that the text we recieve as answer is readable by our application.
/// Therefore we make an encoding to UTF8 which ensures all nordical characters are recognized and showable.
/// Now we have a dataset which can be be converted to our own simple datatype classCityWeather via JsonConvert,
/// here we imply which class we want to convert to and a indication of the source to the data which
/// have to be implemented in the datatype.
/// Then we return an instance of ClassCityWeather which now contains all the data we have recieved from the Web API.
/// </summary>
/// <returns>Task<ClassCurrency></returns>
public async Task <ClassCurrency> GetURLContentsAsync()
{
ClassCurrency CC = new ClassCurrency();
var content = new MemoryStream();
var webReq = (HttpWebRequest)WebRequest.Create($"https://openexchangerates.org/api/latest.json?app_id=02ce56841b244b9ebd18d47a7d8c40e7");
using (WebResponse response = await webReq.GetResponseAsync())
{
using (Stream responseStream = response.GetResponseStream())
{
await responseStream.CopyToAsync(content);
}
}
string strRes = System.Text.Encoding.UTF8.GetString(content.ToArray()); // content is byte, if we make them into an array we can use encoding to make a readable string
CC = JsonConvert.DeserializeObject <ClassCurrency>(strRes); // JsonConvert class has a method called Deserialze object,
// the method needs an indication of the object it needs to build(ClassCityWeather)
// and a parameter which here is a string that contains the data recieved fromt the api as a string in Json format
return(CC);
}
