package banking;

import java.io.*;
import java.util.*;

/**
 * @author rainliu
 *
 * To change the template for this generated type comment go to
 * Window>Preferences>Java>Code Generation>Code and Comments
 */
public class BankClient {
	private static BankTransaction bt = new BankTransaction();

	public static void main(String[] args) throws Exception {
		System.out.println("請輸入命令：1.創建帳戶；2.注銷帳號；3.存款；4.取款；5.轉帳；6.打印所有帳號");
		System.out.println("\t\t\thelp:幫助；quit：退出");
		while (true) {
			BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
			//DataInputStream br = new DataInputStream(System.in);
			String cmd = br.readLine();
			if (cmd==null || "".equals(cmd.trim())) continue;
			if ("1".equals(cmd)) {
				createAccount();
				continue;
			} else if ("2".equals(cmd)) {
				deleteAccount();
				continue;
			} else if ("3".equals(cmd)) {
				deposit();
				continue;
			} else if ("4".equals(cmd)) {
				withdraw();
				continue;
			} else if ("5".equals(cmd)) {
				transfer();
				continue;
			} else if ("6".equals(cmd)) {
				bt.printAllAcount();
				continue;
			} else if ("help".equalsIgnoreCase(cmd.trim())) {
				System.out.println("請輸入命令：1.創建帳戶；2.注銷帳號；3.存款；4.取款；5.轉帳；6.打印所有帳號");
				System.out.println("\t\t\thelp:幫助；quit：退出");
				continue;
			} else if ("quit".equalsIgnoreCase(cmd.trim())) {
				break;
			} else {
				System.out.println("Error Command，請輸入help查詢！");
				continue;
			}

		}
	}
	
	/**
	 * 創建帳號處理
	 * @return true 創建成功
	 */	
	private static boolean createAccount() throws Exception {
		System.out.println("請輸入帳號和密碼，以空格分開");
		BufferedReader br1 = new BufferedReader(new InputStreamReader(System.in));
		String temp = br1.readLine();
		//如果未輸入或者輸入全是空格，取消本次操作
		if (temp==null || temp.trim().equals("")) {
			System.out.println("操作無效！");
			return false;
		}

		String id,password;
		//以一個空格為分隔符（密碼前后的空格無效）
		StringTokenizer st = new StringTokenizer(temp," ");
		//檢查輸入的單詞是否兩個
		if (st.countTokens()!=2) {
			System.out.println("操作無效！");
			return false;
		}
		//獲得輸入的ID（ID和密碼中只能包括英文、數字和下劃線的檢查略去）
		id = st.nextToken();
		//獲得輸入的密碼
		password = st.nextToken();
		//創建帳戶
		if(!bt.createAccount(id,password)) {
			//若失敗則打印錯誤信息
			System.out.println(bt.getMessage());
			return false;
		}
		System.out.println("祝賀您，賬戶創建成功!");
		return true;
	}

	/**
	 * 注銷帳號處理
	 * @return true 創建成功
	 */	
	private static boolean deleteAccount() throws Exception {
		System.out.println("請輸入要注銷的帳號和密碼，以空格分開");
		BufferedReader br1 = new BufferedReader(new InputStreamReader(System.in));
		String temp = br1.readLine();
		//如果未輸入或者輸入全是空格，取消本次操作
		if (temp==null || temp.trim().equals("")) {
			System.out.println("操作無效！");
			return false;
		}

		String id,password;
		//以一個空格為分隔符（密碼前后的空格無效）
		StringTokenizer st = new StringTokenizer(temp," ");
		//檢查輸入的單詞是否兩個
		if (st.countTokens()!=2) {
			System.out.println("操作無效！");
			return false;
		}
		//獲得輸入的ID
		id = st.nextToken();
		//獲得輸入的密碼
		password = st.nextToken();
		//注銷帳戶
		if(!bt.deleteAccount(id,password)) {
			//若失敗則打印錯誤信息
			System.out.println(bt.getMessage());
			return false;
		}
		System.out.println("賬戶已刪除!");
		return true;
	}

	/**
	 * 存款處理
	 * @return true 創建成功
	 */	
	private static boolean deposit() throws Exception {
		System.out.println("請輸入要存款的帳號、密碼和存入金額，以空格分開");
		BufferedReader br1 = new BufferedReader(new InputStreamReader(System.in));
		String temp = br1.readLine();
		//如果未輸入或者輸入全是空格，取消本次操作
		if (temp==null || temp.trim().equals("")) {
			System.out.println("操作無效！");
			return false;
		}

		String id,password,money;
		//以一個空格為分隔符（密碼前后的空格無效）
		StringTokenizer st = new StringTokenizer(temp," ");
		//檢查輸入的單詞是否3個
		if (st.countTokens()!=3) {
			System.out.println("操作無效！");
			return false;
		}
		//獲得輸入的ID、密碼、金額（金額是否為數字的檢查略去）
		id = st.nextToken();
		password = st.nextToken();
		money = st.nextToken();

		//存款處理
		if(!bt.deposit(id,password,Double.parseDouble(money))) {
			//若失敗則打印錯誤信息
			System.out.println(bt.getMessage());
			return false;
		}
		System.out.println("存款成功!");
		return true;
	}

	/**
	 * 取款處理
	 * @return true 創建成功
	 */	
	private static boolean withdraw() throws Exception {
		System.out.println("請輸入要取款的帳號、密碼和取款金額，以空格分開");
		BufferedReader br1 = new BufferedReader(new InputStreamReader(System.in));
		String temp = br1.readLine();
		//如果未輸入或者輸入全是空格，取消本次操作
		if (temp==null || temp.trim().equals("")) {
			System.out.println("操作無效！");
			return false;
		}

		String id,password,money;
		//以一個空格為分隔符（密碼前后的空格無效）
		StringTokenizer st = new StringTokenizer(temp," ");
		//檢查輸入的單詞是否3個
		if (st.countTokens()!=3) {
			System.out.println("操作無效！");
			return false;
		}
		//獲得輸入的ID、密碼、金額（金額是否為數字的檢查略去）
		id = st.nextToken();
		password = st.nextToken();
		money = st.nextToken();

		//取款處理
		if(!bt.withdraw(id,password,Double.parseDouble(money))) {
			//若失敗則打印錯誤信息
			System.out.println(bt.getMessage());
			return false;
		}
		System.out.println("請提取現金!");
		return true;
	}

	/**
	 * 轉帳處理
	 * @return true 創建成功
	 */	
	private static boolean transfer() throws Exception {
		System.out.println("請輸入要轉出金額的帳號和密碼、存入的帳號和密碼、金額，以空格分開");
		BufferedReader br1 = new BufferedReader(new InputStreamReader(System.in));
		String temp = br1.readLine();
		//如果未輸入或者輸入全是空格，取消本次操作
		if (temp==null || temp.trim().equals("")) {
			System.out.println("操作無效！");
			return false;
		}

		String fromId,fromPass,toId,toPass,money;
		//以一個空格為分隔符（密碼前后的空格無效）
		StringTokenizer st = new StringTokenizer(temp," ");
		//檢查輸入的單詞是否5個
		if (st.countTokens()!=5) {
			System.out.println("操作無效！");
			return false;
		}
		//獲得輸入的數據（金額是否為數字的檢查略去）
		fromId = st.nextToken();
		fromPass = st.nextToken();
		toId = st.nextToken();
		toPass = st.nextToken();
		money = st.nextToken();

		//轉帳處理
		if(!bt.transfer(fromId,fromPass,toId,toPass,Double.parseDouble(money))) {
			//若失敗則打印錯誤信息
			System.out.println(bt.getMessage());
			return false;
		}
		System.out.println("轉帳成功!");
		return true;
	}

}