import java.util.Scanner;

class Account
{
    String name;
    String AccNo;
    int balance;
    String password;
    Account(String name, String AccNo, int balance, String password)
    {
        this.name = name; this.AccNo = AccNo; this.balance = balance;
        this.password = password;
    }
    void Deposit(int money)
    {
        balance += money;
    }
    int Withraw(int money, String password)
    {
        if(this.password.equals(password) == false)
        {
            System.out.println("비밀번호틀림");
            return 0;
        }
        if(balance < money)
        {
            System.out.println("잔고부족");
            return 0;
        }
        System.out.println(money +"만큼 인출 완료");
        balance -= money;
        return money;
    }
    boolean Send(Account acc, int money, String password)
    {
        int sendmoney = Withraw(money, password);
        if (sendmoney > 0)
        {
            acc.Deposit(sendmoney);
            return true;
        }
        return false;
    }
    boolean balanceCheck(String password)
    {
        if(this.password.equals(password) == false)
        {
            return false;
        }
        else
        {
            return true;
        }
    }
}
public class atm_example {
    static int ManagerMonitor(Account acc[], int cnt)
    {
        Scanner in = new Scanner(System.in);
        String name = "", AccNo = "", password = "";
        int balance = 0;
        int accIndex = -1;
        int delete = -1;
        while(true)
        {
            System.out.println("관리자 화면");
            System.out.print("1. 계좌생성  2.계좌삭제   3.계좌현황   4.돌아가기 : ");
            int select = in.nextInt();
            switch(select)
            {
            case 1:
                in.nextLine();
                    System.out.println("예금주 : "); name = in.nextLine();
                    System.out.println("계좌번호 : "); AccNo = in.nextLine();
                        accIndex = findAccountIndex(acc, cnt, AccNo);
                if(accIndex == -1)
                {
                    System.out.println("비밀번호 : "); password = in.nextLine();
                    System.out.println("잔고 : "); balance = in.nextInt();
                        acc[cnt++] = new Account(name, AccNo, balance, password);
                }
                else
                {
                    System.out.println("이미 계설된 계좌입니다.");
                }
                break;
            case 2:
                in.nextLine();
                    System.out.println("삭제할 계좌번호를 적어주세요 : ");
                        AccNo = in.nextLine();
                        int index = 0;
                        delete = deleteAccount(acc, cnt, index);
                    if( delete == index )
                    {
                        System.out.println("존재하지 않는 계좌입니다.");
                    }
                    else
                    {
                        System.out.println("삭제 되었습니다.");
                    }
                break;
            case 3:
                System.out.println("예금주\t계좌번호");
                System.out.println("=====================");
                    for(int i=0; i<cnt; i++)
                {
                    System.out.println(acc[i].name + "\t" + acc[i].AccNo);
                return cnt;
                }
                    break;

            case 4: return cnt;
            }

        }
    }
    static void ClientMonitor(Account acc[], int cnt, Account user) {
        Scanner in = new Scanner(System.in);
        String name = "", AccNo = "", password = "";
            int money = 0;
            int accIndex = -1;
            boolean successed = true;
        while(true)
        {
            System.out.println("고객화면");
            System.out.print("1.입금  2.출금  3.송금  4.조회  5.로그아웃 : ");
                int select = in.nextInt();
            switch(select)
            {
            case 1:
                System.out.print("입금금액 : ");
                    money = in.nextInt();
                        user.Deposit(money);
                System.out.println("입금완료");
                break;
            case 2:
                System.out.println("얼마를 인출하시겠습니까? : ");
                    money = in.nextInt();
                        in.nextLine();
                System.out.println("비밀번호를 입력하세요 : ");
                    password = in.nextLine();
                        user.Withraw(money, password);
                break;
            case 3:
                in.nextLine();
                System.out.println("누구에게 송금하시곘습니까?");
                    AccNo = in.nextLine();
                        accIndex = findAccountIndex(acc, cnt, AccNo);
                    if(accIndex == -1)
                    {
                        System.out.println("계좌가 존재하지 않습니다");
                        return;
                    }
                    else
                    {
                System.out.println("얼마를 송금하시겠습니까?");
                    money = in.nextInt();
                        in.nextLine();
                System.out.println("비밀번호를 입력하세요");
                    password = in.nextLine();
                    }
                    successed = user.Send(acc[accIndex], money, password);
                    if(successed == true)
                    {
                        System.out.println("송금 성공");
                    }
                    else
                    {
                        System.out.println("송금 실패");
                        return;
                    }
                break;
            case 4:
                System.out.println("비밀번호를 입력하세요 : ");
                    in.nextLine();
                        password = in.nextLine();
                if(user.balanceCheck(password) == true)
                {
                    System.out.println("예금주\t계좌번호\t예금액");
                    System.out.println("==============================");
                    System.out.println(user.name + "\t" + user.AccNo + "\t " + user.balance + "원");
                }
                else
                {
                    System.out.println("비밀번호가 다릅니다.");
                }
                    break;
            case 5: return;
            }
        }
    }
    static int deleteAccount (Account acc[], int cnt, int index)
    {
        if(cnt == 0)
        {
            return 0;
        }
        if(cnt <= index)
        {
            return cnt;
        }
        for(int i = index; i <cnt; i++)
        {
            acc[i] = acc[i+1];
        }
        return cnt +1;
    }
    static int findAccountIndex(Account acc[], int cnt, String AccNo)
    {
        for(int i=0; i<cnt; i++)
        {
            if(acc[i].AccNo.equals(AccNo))
            {
                return i;
            }
        }
        return -1;
    }
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Account acc[] = new Account[100];
        int cnt=0;
        Scanner in = new Scanner(System.in);
        while(true)
        {
            System.out.println("시작화면");
            System.out.print("1.관리자화면   2. 로그인   3. 종료 : ");
                int select = in.nextInt();
            switch(select)
            {
            case 1: cnt = ManagerMonitor(acc, cnt);
                break;
            case 2:
                in.nextLine();
                    System.out.print("계좌번호 : ");
                        String AccNo = in.nextLine();
                            int index = findAccountIndex(acc, cnt, AccNo);
                if(index >= 0)
                {
                    ClientMonitor(acc, cnt, acc[index]);
                }
                else
                {
                    System.out.println("계좌가 없습니다.");
                }
                break;
            case 3:
                System.out.println("시스템을 종료합니다.");
                return;
            }
        }
    }
}