import java.util.

*;
import java.io.*;
import java.text.*;
public class fileread{
public static void main(String []args)throws IOException{

Scanner scnr = new Scanner(System.in);

DecimalFormat dcfm = new DecimalFormat("###,###.00");
Date date = new Date();
String DATE_FORMAT = "MM/dd/yyyy";
SimpleDateFormat sidf = new
SimpleDateFormat(DATE_FORMAT);
String strDateFormat = "HH:mm:ss";
SimpleDateFormat sdf = new
SimpleDateFormat(strDateFormat);

//>>Variables
String productID = "";
String data="";
String answer="";
String product[];
int check=0;

String str="",Discount="";
String strQuanTT="";
int QuanTT=0;
int counter=0;
double VAT=0, less=0;
double amount=0;
double Dproduct=0;
double PWD=0;
double PWD15=0;
double Senior=0, Suki=0,Senior20=0, Suki10=0;
double payment=0;
double amountDue=0;
double change=0;

FileInputStream fis = new FileInputStream

("Productinfo_.txt");
DataInputStream dis = new DataInputStream(fis);
BufferedReader br = new BufferedReader
(new InputStreamReader(dis));

System.out.println
("********************************************");

while(true){
System.out.print("Enter Product ID : ");
productID = scnr.next();

while((data = br.readLine())!=null){
product = data.split(", ");
if(productID.equals(product[0])){
System.out.println("Product name: " + product[1]);
System.out.println("Unit price: " + product[2]);

check = 1;

System.out.print("Enter quantity: ");

 strQuanTT = scnr.next();
QuanTT = Integer.parseInt(strQuanTT);

Dproduct = Double.parseDouble(product[2]);

amount = amount + (Dproduct*QuanTT);

counter = counter + QuanTT;

str = str +product[1]+"\t\t"+product[2]+"\t\t"+QuanTT+ "\t\

t"+dcfm.format(amount)+"\n";

}
}

if(check == 0){
System.out.println("Records Not Found!!!");}
check = 0;

fis.getChannel().position(0);
System.out.print
("Do yuo want to buy another Product? [ Yes/No ]: ");
answer = scnr.next();

if(answer.equalsIgnoreCase("No")){
System.out.println("The Program Will Terminate\n");

System.out.println
("********************************************");

System.out.print("\nDate : " + sidf.format(date)+"\t\t\t");

System.out.println("Time : " + sdf.format(date));

System.out.println("Description");
System.out. println
("_________________________________________");
System.out.println("Prodoct"+"\t\t"+"Price"+"\t\t"+
"Quantity"+"\t"+"Total cost");

System.out.println(str);

System.out. println
("_________________________________________");

System.out.print("products bought: "+counter+"\n");

System.out.print("\n°°°[ 1 ]None \n°°°[ 2 ] Senior Sitizen \n°°°[ 2 ] PWD \
n°°°[ 1 ] Suki card\n");
System.out.print("\nSelect Type of Discount: ");
Discount = scnr.next();

VAT = amount*0.12;
less = amount-VAT;

System.out.println("VAT: "+dcfm.format(VAT)
+"\t\t\t\t\t\t"+"["+dcfm.format(amount)+"]");
System.out.println("Less Vat: "+dcfm.format(less));

//--->> Discount
if (Discount.equalsIgnoreCase ("1")){
System.out.println
 ("Type of Discount: None ");}
else if (Discount.equalsIgnoreCase ("2")){
System.out.println
("Type of Discount: Senior Sitizen");}
else if (Discount.equalsIgnoreCase ("3")){
System.out.println
("Type of Discount: PWD");}
else {
System.out.println
("Type of Discoun:t Suki card: ");}

if (Discount.equalsIgnoreCase ("1")){
System.out.println
("Discount amount: ");}
else if (Discount.equalsIgnoreCase ("2")){
Senior = amount+VAT;
Senior20 = Senior*0.20;
System.out.println
("Discount amount: "+dcfm.format(Senior20));}
else if (Discount.equalsIgnoreCase ("3")){
PWD = amount+VAT;
PWD15 = PWD*0.15;
System.out.println
("Discount amount: "+dcfm.format(PWD15));}
else {
Suki = amount+VAT;
Suki10 = Suki*0.10;
System.out.println
("Discount amount: "+dcfm.format(Suki10));}

System.out.print("\n");

//--->> Amount Due

if (Discount.equalsIgnoreCase ("1")){
amountDue = amount+VAT;
System.out.println
("Amount due: "+dcfm.format(amountDue));}
else if (Discount.equalsIgnoreCase ("2")){
amountDue = Senior-Senior20;
System.out.println
("Amount due: "+dcfm.format(amountDue));}
else if (Discount.equalsIgnoreCase ("3")){
amountDue = PWD-PWD15;
System.out.println
("Amount due: "+dcfm.format(amountDue));}
else {
amountDue = Suki-Suki10;
System.out.println
("Amount due: "+dcfm.format(amountDue));}

do {
System.out.print("Payment: Php ");
payment = scnr.nextDouble();
if (payment < amountDue){
System.out.println("your payment is insufficient 💸 🚫");}
} while(payment< amountDue);

{
{
 change = (payment-amountDue);
if (Discount.equalsIgnoreCase ("1")){
System.out.print("Change: Php "+dcfm.format(change));}
else if (Discount.equalsIgnoreCase ("2")){
System.out.print("Change: Php "+dcfm.format(change));}
else if (Discount.equalsIgnoreCase ("3")){
System.out.print("Change: Php "+dcfm.format(change));}
else {
System.out.print("Change: Php "+dcfm.format(change));}

System.exit(0);

}
}
}
}
}
}