public class CallCentreTester
{
    public static void main(String[] args)
    {
        System.out.print("Enter the maximum number of calls that can be taken in the centre: ");

        //take in an int from the user for the maximum number of calls in the call centre
        int maxNumberOfCalls = EasyScanner.nextInt();

        //initialise the call centre with the maximum number of calls entered by the user
        CallCentre callCentre = new CallCentre(maxNumberOfCalls);

        char choice;

        do
        {
            //Displays the menu
            System.out.println();
            System.out.println("Call Centre System");
            System.out.println();
            System.out.println("1: Add a Call");
            System.out.println("2: Remove a call");
            System.out.println("3: Update call Status");
            System.out.println("4: Check if the call list is Empty");
            System.out.println("5: Check if the call list is Full");
            System.out.println("6: Call details...");
            System.out.println("7: Update suggested length of call");
            System.out.println("8: Exit System");
            System.out.println();

            //gets input from user
            System.out.print("Please Enter choice [1-8]: ");
            choice = EasyScanner.nextChar();

            if(choice == 1) //add a call
                {
                option1(callCentre);
                }
            else if (choice == 2) // remove a call
                {
                option2(callCentre);
                }
            else if (choice == 3) // update call status
                {
                option3(callCentre);
                }
            else if (choice ==4) // check if the call list is empty
            {
                option4(callCentre);
            }
            else if (choice ==5) // Check if the call list is Full
            {
                option5(callCentre);
            }
            else if (choice ==6) // Call details...
            {
                option6(callCentre);
            }
            else if (choice ==7) // Update suggested length of call
            {
                option7(callCentre);
            }
            else if (choice ==8) // Exit System
            {
                System.out.println("Exiting the system");
            }
           else // if the user picks anything below 1 or above 8
            {
                 System.out.println("That is not a valid option, please try again.");
            }

        //if the user picks 8 then the do-while loop will exit
        } while (choice != 8);

    }

    private static void option1(CallCentre callCentre)  //add a call
    {
        System.out.println("Add a Call: ");

        System.out.println("\tEnter Call Id: ");
        String callId = EasyScanner.nextString(); // input call id

        System.out.println("\tEnter length of the call (mininutes): ");
        int numMinutes = EasyScanner.nextInt(); // input num minutes

        System.out.println("\tEnter call status(open, pending or closed): ");
        String callStatus = EasyScanner.nextString(); // input call status

        System.out.print("\tDo you need to call the customer back (y/n): ");
        char choice = EasyScanner.nextChar(); // input char for callBackCustomer

        boolean callBackCustomer = false;
        if (choice == 'y' || choice == 'Y') // if the user types a lower case or upper case y
        {
                callBackCustomer = true; // set to true
        }
        else if (choice == 'n' || choice == 'N') // if the user types a lower case or upper case n
        {
                callBackCustomer = false; // set to false
        }

        System.out.println("\tEnter agent name");
        String callAnsweredBy = EasyScanner.nextString(); // input callAnsweredBy

        System.out.println("How happy was your customer? 1 (very happy) to 5 (very unhappy): 3");
        int customerSatisfactionRating = EasyScanner.nextInt(); // input customerSatisfactionRating

        //create a new call with the information input by the user
        Call call = new Call(callId, numMinutes, callStatus, callBackCustomer, callAnsweredBy, customerSatisfactionRating);

        if(callCentre.isFull()) // if the call centre is full
        {
                System.out.println("The call centre is full");
        }
        else // if the call centre is not full, add the call to the system
        {
                callCentre.add(call);
        }

    }

        private static void option2(CallCentre callCentre) // remove a call
        {

        }

        }

        private static void option3(CallCentre callCentre) // Update the call status
        {


        }

        private static void option4(CallCentre callCentre) // Check if the call list is empty
        {
                if (callCentre.isEmpty()) // if the call centre is empty
                {
                        System.out.println("The call list is empty");
                }
                else // if the call centre is not empty
                {
                        System.out.println("The call list is not empty");
                }

        }

        private static void option5(CallCentre callCentre) // Check if the call list is full
        {
               if (callCentre.isFull()) // if the call centre is full
                {
                        System.out.println("The call list is full");
                }
                else // if the call centre is not full
                {
                        System.out.println("The call list is not full");
                }

        }


        private static void option6(CallCentre callCentre) // Details of call
        {
        System.out.println();

        char choice = ' '; // This is how the choic for a-e is decided.

        do //loop for a-e
        {
            System.out.println();
            System.out.println("Call Centre System");
            System.out.println();
            System.out.println("1: Add a Call");
            System.out.println("2: Remove a call");
            System.out.println("3: Update call Status");
            System.out.println("4: Check if the call list is Empty");
            System.out.println("5: Check if the call list is Full");
            System.out.println("6: Call details...");
            System.out.println("                a. Display details of a specific call");
            System.out.println("                b. Display all calls");
            System.out.println("                c. Display Longest call");
            System.out.println("                d. Display Shortest call");
            System.out.println("                e. Display all calls above the suggested length of a call");
            System.out.println("7: Update suggested length of call");
            System.out.println("8: Exit System");
            System.out.println();

            System.out.print("Enter choice [a-e]: ");
            choice = EasyScanner.nextChar(); //using a char
            System.out.println();

            // menu options
            if(choice == 'a')
                {
                option6a(callCentre);
                }
            else if (choice == 'b')
                {
                option6b(callCentre);
                }
            else if (choice == 'c')
                {
                option6c(callCentre);
                }
            else if (choice == 'd')
            {
                option6d(callCentre);
            }
            else if (choice == 'e')
            {
                option6e(callCentre);
            }

        }while (choice != 'd');

    }
    private static void option7(CallCentre callCentre) // Update suggested length of call
    {
        System.out.print("Enter the new suggested length of each call: "); //The length of each call made
        int suggestedLengthOfCall = EasyScanner.nextInt();

    }
}