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package lk.ac.pdn.ceit.pos.ui;
import java.util.List;
import lk.ac.pdn.ceit.pos.PointOfSale;
import lk.ac.pdn.ceit.pos.entities.Bill;
import lk.ac.pdn.ceit.pos.entities.Item;
import lk.ac.pdn.ceit.pos.entities.LineItem;
public class TextUI {
private PointOfSale pos;
private Bill bill; // Current bill
private void printBill() {
// Print top part of the bill
IO.println(bill); // TODO: Only print suitable parts for the top of the bill.
// Print line items
for (LineItem lineItem : bill.getLineItems()) {
IO.println(lineItem);
}
// TODO: Print total, cash given, balance, etc.
}
public void setPos(PointOfSale pos) {
this.pos = pos;
}
public void start() {
IO.println("POS Starting...");
printHelp();
while (true) {
String response = IO.readln("POS> ");
switch (response.trim().toLowerCase()) {
case "q":
case "quit":
IO.println("Bye bye!");
System.exit(0);
case "help":
printHelp();
break;
case "create":
bill = pos.createNewBill();
IO.println("New bill created. Bill id: " + bill.getId());
break;
case "search":
String q = IO.readln("Enter search query (item name): ");
List<Item> items = pos.searchItems(q);
IO.println("Search results: ");
for (Item item : items) {
IO.println(item);
}
break;
case "item":
String itemId = IO.readln("Enter item Id: ");
String quantity = IO.readln("Enter quantity: ");
pos.addLineItem(itemId, Integer.parseInt(quantity));
break;
case "save":
pos.saveBill();
IO.println("Bill saved.");
break;
case "finish":
pos.finishBillSession();
this.bill = null;
IO.println("Bill session finished.");
break;
case "print":
printBill();
break;
default:
IO.println("Command not understood.");
break;
}
}
}
private void printHelp() {
IO.println("Commands available:");
IO.println(" q or quit - Quit the program.");
IO.println(" help - Prints this help.");
IO.println(" create - Create a new bill.");
IO.println(" item - Enter new item details to be purchased.");
IO.println(" save - Save the current bill in the system.");
IO.println(" print - Print the bill.");
IO.println(" finish - Finish current bill session.");
}
}
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