//If a customer is commercial, use the specified commercial rates.
private void CommResp(CommCustomer args, int userUsage)
{
//Populates the form with extra details and the total bill.
txtFlatRate.Text = FIXEDCOMM.ToString("c");
txtFlatRateLimit.Text = LIMITCOMM.ToString("n");
txtUsageRate.Text = RATECOMM.ToString("c4");
if ((userUsage - LIMITCOMM) > 0)
{
txtOverLimit.Text = (userUsage - LIMITCOMM).ToString("n");
}
else
{
txtOverLimit.Text = "N/A";
}
//Use the calculateCharge method and ToString method to return metered cost.
args.CalculateCharge();
txtTotalCost.Text = args.ToString(); //Shows the user their total bill.
//Write customer data to a local .txt file.
String cusData = $"{args.CusName}|{args.AccNo}|{args.CusType}|{args.ToString()}";
ReadWrite.recordCustomer(cusData);
/*Adds the new customer's data to the dataGridView.
* Makes it so that the dataGridView does not need to be reinitialized every time.*/
addToDataGrid(args.CusName, args.AccNo, args.CusType, args.ToString());
//Adds the new customer to the list of Customer objects being accessed by the form.
currentCus.Add(args);
}
//Method for calculating total bill on click of the "Calculate" button.
private void BtnCalculateCost_Click(object sender, EventArgs e)
{
if (formValidator.IsNotEmpty(txtUsage, "Power usage") && formValidator.IsNumber(txtUsage, "Power usage") && formValidator.IsNotEmpty(txtCusName, "Customer Name") && formValidator.IsNotEmpty(txtAccNo, "Account No."))
{
//Declares a variable to store user inputs.
String cusName = txtCusName.Text;
int accNo = Convert.ToInt32(txtAccNo.Text);
int userUsage = Convert.ToInt32(txtUsage.Text);
int offUsage;
//Switch to handle form response depending on customer type.
switch (comboCusType.SelectedItem)
{
case "Residential":
ResCustomer testCusR = new ResCustomer(cusName, accNo, 'R', userUsage); //Declares a dummy customer to use for the form.
ResResp(testCusR);
break;
case "Commercial":
CommCustomer testCusC = new CommCustomer(cusName, accNo, 'C', userUsage); //Declares a dummy customer to use for the form.
CommResp(testCusC, userUsage);
break;
case "Industrial":
if (formValidator.IsNotEmpty(txtUsageOff, "Power usage") && formValidator.IsNumber(txtUsageOff, "Power usage"))
{
offUsage = Convert.ToInt32(txtUsageOff.Text);
IndusCustomer testCusI = new IndusCustomer(cusName, accNo, 'I', userUsage, offUsage);
IndusResp(testCusI, userUsage, offUsage);
}
break;
}
}
//Updates the statistics regarding the customers.
calcStats(currentCus);
}
public void CommCustomerWith1000()
{
//Arrange
//Set up all parameters to initalize a new commercial customer.
String name = "Test";
int accNo = 0;
char cusType = 'C';
int usage = 1000;
CommCustomer testCustomer = new CommCustomer(name, accNo, cusType, usage);
string expectedCharge = "$60.00"; //Expected return value for CalculateCharge
//Act
testCustomer.CalculateCharge();
//Assert
string actualCharge = testCustomer.ToString();
Assert.AreEqual(expectedCharge, actualCharge);
}
