package taskperf6;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;

public class TaskPerf6 {

    public static void main(String[] args)throws FileNotFoundException, IOException{
        Scanner input = new Scanner(System.in);
        System.out.println("1.Registration");
        System.out.println("2.Log in");
        System.out.print("Select Option: ");
        int select = input.nextInt();

        switch(select){
            case 1:
             String username;
             String pass;
             String strl = input.nextLine();
             BufferedWriter writer = new BufferedWriter(new FileWriter("C:/records.txt"));
             System.out.print("Enter Username: ");
             username = input.nextLine();
             writer.write(username);
             writer.newLine();
             System.out.print("Enter Password: ");
             pass = input.nextLine();
             writer.write(pass);
             writer.close();
             System.out.println("Successfully Registered");
             System.out.print("Do You Want to Log in Now[Y/N]:");
             String YesNo = input.nextLine();
             if(YesNo.equalsIgnoreCase("Y")){
             File file = new File("C:/records.txt");
             FileReader fr = new FileReader(file);
             BufferedReader br = new BufferedReader(fr);
             String username1;
             String pass1;
             String strl1 = input.nextLine();
             System.out.print("Enter Your Username: ");
             username1 = input.nextLine();
             System.out.print("Enter Your Password: ");
             pass1 = input.nextLine();

             String s = null;
             String[] registeredAccount = new String[2];
             int ctr = 0;

             while((s = br.readLine()) != null){
                 registeredAccount[ctr] = s;
                 ctr++;
             }

             if(username1.equalsIgnoreCase(registeredAccount[0]) && pass1.equalsIgnoreCase(registeredAccount[1])){
                 System.out.print("Successfully Logged in");
             }

             else{
                 System.out.print("Incorrect Username or Password");
             }
             }

             else if(YesNo.equalsIgnoreCase("N")){
                System.out.print("End of Program");
             }
             break;

            case 2:
             File file = new File("C:/records.txt");
             FileReader fr = new FileReader(file);
             BufferedReader br = new BufferedReader(fr);
             String username1;
             String pass1;
             String strl1 = input.nextLine();
             System.out.print("Enter Your Username: ");
             username1 = input.nextLine();
             System.out.print("Enter Your Password: ");
             pass1 = input.nextLine();

             String s = null;
             String[] registeredAccount = new String[2];
             int ctr = 0;

             while((s = br.readLine()) != null){
                 registeredAccount[ctr] = s;
                 ctr++;
             }

             if(username1.equalsIgnoreCase(registeredAccount[0]) && pass1.equalsIgnoreCase(registeredAccount[1])){
                 System.out.print("Successfully Logged in");
             }

             else{
                 System.out.print("Incorrect Username or Password");
             }


        }
    }

}