package chapter7;

import java.util.ArrayList;

import java.util.Scanner;

import java.time.LocalDate;

import java.util.function.Supplier;

import java.util.function.BooleanSupplier;

abstract class Ticket implements Comparable<Ticket>

{

String customerName;

int id;

String description;

LocalDate dueDate;

LocalDate servicedDate;

public Ticket(String cn, int i, String d, int due)

{

customerName = cn;

id = i;

description = d;

dueDate = LocalDate.now().plusDays(due);

servicedDate = LocalDate.now().minusDays(1);

}

@Override

public String toString()

{

return "NAME: " + customerName

+ "\nID: " + id

+ "\nDESCRIPTION: " + description

+ "\nDUE DATE: " + dueDate

+ "\nSERVICED DATE: " + servicedDate;

}

@Override

public int compareTo(Ticket t)

{

return dueDate.compareTo(t.dueDate);

}

}

class HardwareTicket extends Ticket

{

String device;

String model;

String serialNumber;

public HardwareTicket(String cn, int i, String d, int due,

String dev, String mod, String sn)

{

super(cn, i, d, due);

device = dev;

model = mod;

serialNumber = sn;

}

@Override

public String toString()

{

return super.toString()

+ "\nDEVICE: " + device

+ "\nMODEL: " + model

+ "\nSERIAL NUMBER: " + serialNumber;

}

}

enum Domain {WEB_HOSTED, PHONE_HOSTED}

class SoftwareTicket extends Ticket

{

String application;

String version;

Domain domain;

public SoftwareTicket(String cn, int i, String d, int due,

String app, String ver, Domain dom)

{

super(cn, i, d, due);

application = app;

version = ver;

domain = dom;

}

@Override

public String toString()

{

return super.toString()

+ "\nAPPLICATION: " + application

+ "\nVERSION: " + version

+ "\nDOMAIN: " + domain;

}

}

public class TicketingSystem

{

private static ArrayList<Ticket> tickets = new ArrayList<>();

private static LocalDate today = LocalDate.now();

private static void populateDatabase()

{

tickets.add(new HardwareTicket("Kalpana Patel",54641,

"Cell phone won't power on",

5, "Smartie", "SM250",

"SN546497-S23"));

tickets.add(new SoftwareTicket("Chester Rodriguez",89034,

"MapApp can't find grandma's house",

2, "MapApp", "1.01",

Domain.PHONE_HOSTED));

tickets.add(new SoftwareTicket("Britney Delmonica",91472,

"Can't change banking info on website",

1, "awesomecheapcellphones.com",

"2.65", Domain.WEB_HOSTED));

tickets.add(new HardwareTicket("Kalpana Patel",54641,

"Cell phone's screen goes black",

7, "Rover", "RV100",

"SN456742-R31"));

}

public static void main(String[] args)

{

Supplier<? extends Ticket> nextTicket = () ->

{

Ticket next = null;

for (int i=0; i < tickets.size(); ++i)

{

Ticket t = tickets.get(i);

if (t.servicedDate.compareTo(today) < 0)

{

if (next == null || t.compareTo(next) < 0)

next = t;

}

}

if (next != null)

next.servicedDate = today;

return next;

};

BooleanSupplier canClose = () -> {

boolean result = false;

Scanner scan = new Scanner(System.in);

System.out.print("\nCan you close the ticket (Y or N)?");

if (scan.nextLine().charAt(0) == 'Y')

result = true;

return result;

};

BooleanSupplier isQuittingTime = () -> {

boolean result = false;

Scanner scan = new Scanner(System.in);

System.out.print("Is it quitting time (Y or N)?");

if (scan.nextLine().charAt(0) == 'Y')

result = true;

return result;

};

populateDatabase();

Ticket next;

boolean done = false;

do

{

next = nextTicket.get();

if (next != null)

{

System.out.println("\n" + next);

if (canClose.getAsBoolean())

tickets.remove(next);

if (isQuittingTime.getAsBoolean())

done = true;

}

} while(next != null && !done);

if (next == null)

System.out.println(

"\nCongrats, you get a $50 bonus today!");

else

System.out.println("\nSee you tomorrow");

}

}