/*
  @author Albert Filip Silalahi
  @version 4 Nov 2020
 */

import java.util.ArrayList;
public class Auction
{

    private ArrayList<Lot> ListOfItems; // daftar barang yang akan dilelang
    private int LotsOfIndex; // index barang yang akan dilelang

    // inisiasi pelelangan baru
    public Auction()
    {
        ListOfItems = new ArrayList<Lot>();
        LotsOfIndex = 1;
    }

    // untuk memasukkan barang yg akan dilelang
    public void EnterItems(String ItemName)
    {
        ListOfItems.add(new Lot(LotsOfIndex, ItemName));
        LotsOfIndex++;
    }

    // untuk menunjukkan seluruh list barang yang sedang dilelang
    public void ShowListOfItems()
    {
        for(Lot lot : ListOfItems) {
            System.out.println(lot.detail());
        }
    }

    // untuk mencari lot berdasarkan ID atau index saat ini (current)
    public Lot getLot(int CurrLotsOfIndex)
    {
         if((CurrLotsOfIndex > 0) && (CurrLotsOfIndex < LotsOfIndex)) {
             Lot selectedLot = ListOfItems.get(CurrLotsOfIndex - 1);
             if(selectedLot.getID() != CurrLotsOfIndex)
             {
                 System.out.println("Internal error : Lot number " +
                 selectedLot.getID() + " has been returned instead of " +
                 CurrLotsOfIndex);
                 selectedLot = null;
             }
             return selectedLot;
          }
          else {
              System.out.println("Lot number : " + CurrLotsOfIndex +
              " doesn't exist.");
              return null;
            }
    }

    // melakukan tawaran
    public void MakeABid(int CurrLotsOfIndex, Person bidder, long value)
    {
       Lot selectedLot = getLot(CurrLotsOfIndex);
       if(selectedLot != null) {
           boolean CheckStatus = selectedLot.bidFor(new Bid(bidder, value));
           if(CheckStatus) {
               System.out.println("Bid for Lot number " +
               CurrLotsOfIndex + " was successful, has been bid by " +
               bidder.getName() + " with price " + "Rp " + value);
            }
            else {
                Bid highestBid = selectedLot.getHighestBid();
                System.out.println("Lot number : " + CurrLotsOfIndex +
                "already has a bid of :\\t" +
                highestBid.getBid());
            }
        }
    }

    // menutup pelelangan dan menampilkan pemenang lelang
    public void close()
    {
        System.out.println("Auction has been closed.");
        for(Lot lot : ListOfItems)
        {
            System.out.println(lot.getID() + ": " +lot.getLotName());
            Bid bid = lot.getHighestBid();
            if (bid==null)
            {
                System.out.println("There is no bid for this Lot");
            }
            else
            {
                System.out.println("This Lot has been sold to " +
                bid.getBidder().getName() + " with price :\\t"
                + bid.getBid());
            }
        }
    }
}