public static void GetID()
{
//id the user enters as input
bool isFound = false;
PreferredCustomer customer = null;
do
{
Console.Write("Please enter user ID: "); //ID = 1000000
var enteredID = ConsoleHelper.ReadRegexStringValue("10{5}\\d", "Enter Valid Customer ID"); //validates user Id using Regular expression
foreach (var cust in preferredCustomers)
{
if (cust.CustomerID == enteredID)
{
isFound = true;
customer = cust;
}
}
if(!isFound)
Console.Write("ID does not exist. ");
} while (!isFound);
ShowCustomerInfo(customer);
}
public static void ShowCustomerInfo(PreferredCustomer customer)
{
using (var reader = new StreamReader("CustomerInfo.txt"))
{
var index = 0;
preferredCustomers = new PreferredCustomer[5];
while (!reader.EndOfStream)
{
var line = reader.ReadLine().Split(':');
var name = line[0];
var address = line[1];
var phone = line[2];
var id = line[3];
var email = line[4];
var spentAmount = Convert.ToInt32(line[5]);
var onEmailList = Convert.ToBoolean(line[6]);
preferredCustomers[index] = new PreferredCustomer(name, address, phone, id, email, spentAmount,
onEmailList);
index++;
Console.WriteLine("{0}:{1}:{2}:{3}:{4}:{5}:{6}",
name, address, phone, id, email, spentAmount, onEmailList); //Shows customers info
}
}
Console.WriteLine("Enter CustomerID which you want to delete (1-5):");
var customerId = ConsoleHelper.ReadRegexStringValue("10{5}\\d", "Enter Valid Customer ID"); //Regular Expression
var newCusomers = new List<PreferredCustomer>();
foreach (var preferredCustomer in preferredCustomers)
{
if (preferredCustomer.CustomerID != customerId)
{
newCusomers.Add(preferredCustomer);
}
}
if (preferredCustomers.Length == newCusomers.Count)
{
Console.WriteLine("Customer was not found");
return;
}
preferredCustomers = newCusomers.ToArray();
using (var writer = new StreamWriter("CustomerInfo.txt"))
{
foreach (var pc in preferredCustomers)
{
writer.WriteLine("{0}:{1}:{2}:{3}:{4}:{5}:{6}",
pc.CustomerName, pc.Address, pc.Phone, pc.CustomerID, pc.CustomerEmail, pc.CalcAmount(), pc.OnEmailList);
}
}
Console.WriteLine($"Customer {customerId} deleted successfully");
}
//the method below uses text file to add elements to the array
static void GetPreferredCustomers(string path)
{
List<string> customers = new List<string>();
int count = 0;
using (StreamReader sr = new StreamReader(path))
{
while (sr.Peek() >= 0)
{
count++;
customers.Add(sr.ReadLine());
}
}
preferredCustomers = new PreferredCustomer[count];
for (int i = 0; i < count; i++)
{
string[] info = customers[i].Split(':');
PreferredCustomer pc = new PreferredCustomer(info[0], info[1], info[2], info[3], info[4], Int32.Parse(info[5]), Boolean.Parse(info[6]));
preferredCustomers[i] = pc; //the array prefferedCustomers contains values
}
}