import java.util.Scanner;

class Account
{
	String name; //예금주
	String AccNo; //계좌번호
	int balance;  //잔고
	String password; //비밀번호
	Account(String name, String AccNo, int balance, String password)
	{ // 계좌를 초기화.
		this.name = name; this.AccNo = AccNo; this.balance = balance;
		this.password = password;
	}
	void Deposit(int money)
	{
		balance += money; //입금액만큼 잔고를 증가
	}
	int Withraw(int money, String password)
	{
		if(this.password.equals(password) == false)// 비밀번호확인
		{
			System.out.println("비밀번호틀림");
			return 0;
		}
		if(balance < money)// 잔고확인
		{
			System.out.println("잔고부족");
			return 0;
		}
		System.out.println(money +"만큼 인출 완료");
		balance -= money; //출금액만큼 잔고를 감소
		return money; //출금액 반환
	}

	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;
		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: //계좌생성
				in.nextLine(); //출력버퍼사용
					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:
				System.out.println("삭제할 계좌번호를 적어주세요 : ");
					in.nextLine();
						AccNo = in.nextLine();
							for(int i = 0; i < accIndex; i++)
						if(acc[i].AccNo.equals(AccNo))
					{
						acc[i] = acc[i+1];
							System.out.println("삭제되었음");
					}
						else
					{
						System.out.println("없는 계좌입니다");
					}
				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);
				}
				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 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; //초기 계좌수
		Scanner in = new Scanner(System.in); //입력을 받을 scanner 객체

		//acc[0] = new Account("장용훈", "1234-1234", 10000, "1234");
		while(true)//시작화면과 메뉴 받기
		{
			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:
				// 계좌입력
				in.nextLine();// 출력 버퍼 해결
				System.out.print("계좌번호 : ");
				String AccNo = in.nextLine();

				// 계좌가 있는지 확인.
				int index = findAccountIndex(acc, cnt, AccNo);
				if(index >= 0) // 계좌가 존재하면 고객화면 호출
				{
					ClientMonitor(acc, cnt, acc[index]);
				}
				//
				break;
			case 3: return; //종료
			}
		}
	}
}