Main

package academy.learnprograming;

import java.util.Scanner;

public class Main {
    private static final Scanner scanner = new Scanner(System.in);
    private static final MobilePhone mobilePhone = new MobilePhone("0044 330 4400");


    public static void main(String[] args) {
        boolean quit = false;
        startPhone();
        printActions();
        while (!quit) {
            System.out.println("\nEnter action: (to show available actions)");
            int action = scanner.nextInt();
            scanner.nextLine();
            switch (action) {
                case 0 -> {
                    System.out.println("\nShutting down...");
                    quit = true;
                }
                case 1 -> mobilePhone.printContacts();
                case 2 -> addNewContact();
                case 3 -> updateContact();
                case 4 -> removeContact();
                case 5 -> queryContact();
                case 6 -> printActions();
            }
        }
    }

    private static void addNewContact() {
        System.out.println("Enter new contact name: ");
        String name = scanner.nextLine();
        System.out.println("Enter phone number: ");
        String phone = scanner.nextLine();
        Contact newContact = Contact.createContact(name, phone);
        if (mobilePhone.addNewContact(newContact)) {
            System.out.println("New contact added: name = " + name + ", phone = " + phone);
        } else {
            System.out.println("Cannot add, " + name + " Already on file.");
        }
    }

    private static void updateContact() {
        System.out.println("Enter existing contact name: ");
        String name = scanner.nextLine();
        Contact existingContactRecord = mobilePhone.queryContact(name);
        if (existingContactRecord == null) {
            System.out.println("Contact not found.");
            return;
        }
        System.out.println("Enter new contact name: ");
        String newName = scanner.nextLine();
        System.out.println("Enter new contact phone number: ");
        String newNumber = scanner.nextLine();
        Contact newContact = Contact.createContact(newName, newNumber);
        if (mobilePhone.updateContact(existingContactRecord, newContact)) {
            System.out.println("Successfully updated record.");
        } else {
            System.out.println("Error updating record.");
        }

    }

    private static void removeContact() {
        System.out.println("Enter existing contact name: ");
        String name = scanner.nextLine();
        Contact existingContactRecord = mobilePhone.queryContact(name);
        if (existingContactRecord == null) {
            System.out.println("Contact not found.");
            return;
        }
        if (mobilePhone.removeContact(existingContactRecord)) {
            System.out.println("Successfully deleted.");
        } else {
            System.out.println("Error deleting contact.");
        }
    }

    private static void queryContact() {
        System.out.println("Enter existing contact name: ");
        String name = scanner.nextLine();
        Contact existingContactRecord = mobilePhone.queryContact(name);
        if (existingContactRecord == null) {
            System.out.println("Contact not found.");
            return;
        }
        System.out.println("Name: " + existingContactRecord.getName() + " phone number is" +
                existingContactRecord.getPhoneNumber());

    }

    private static void startPhone() {
        System.out.println("Starting phone...");
    }

    public static void printActions() {
        System.out.println("\nAvailable actions:\npress");
        System.out.println("""
                0 - to shutdown
                1 - to print contacts
                2 - to add a new contact
                3 - to update an existing contact
                4 - to remove an existing contact
                5 - query if an existing contact
                6 - to print a list of available actions.""");
        System.out.println("Choose your action: ");
    }
}