package org.myorg.jpatickets.bl;
   
   import java.math.BigDecimal;
   import java.util.List;
   
   import org.myorg.jpatickets.bo.Event;
   import org.myorg.jpatickets.bo.Seat;
   import org.myorg.jpatickets.bo.Ticket;
   import org.myorg.jpatickets.bo.Venue;
  import org.myorg.jpatickets.dao.EventMgmtDAO;
  import org.myorg.jpatickets.dao.VenueDAO;
  
  public class EventMgmtImpl implements EventMgmt {
      private EventMgmtDAO edao;
      private VenueDAO vdao;
      
      public void setEventDAO(EventMgmtDAO edao) {
          this.edao = edao;
      }
      public void setVenueDAO(VenueDAO vdao) {
          this.vdao = vdao;
      }
  
      @Override
      public Event createEvent(Event event, Venue venue) throws UnavailableException {
          BigDecimal maxPrice = new BigDecimal(1000);
          List<Seat> seats = vdao.getSeatsForVenue(venue, 0, 0);
          for (Seat seat: seats) {
              Ticket ticket = new Ticket(event, seat);
              BigDecimal discount = new BigDecimal(seat.getRow()*.1);
              ticket.setPrice(maxPrice.subtract(maxPrice.multiply(discount)));
              event.withTicket(ticket);
          }
          return edao.createEvent(event);
      }
  
      @Override
      public Event getEvent(int id) {
          return edao.getEvent(id);
      }
      @Override
      public Event fetchEventTickets(int id) {
          return edao.fetchEventTickets(id);
      }
      @Override
      public Event fetchEventTicketsSeats(int id) {
          return edao.fetchEventTicketsSeats(id);
      }
  
      @Override
      public List<Seat> findSeats(Event event, String section, Integer row, Integer position, int offset, int limit) {
          return edao.findSeats(event, section, row, position, offset, limit);
      }
      
      @Override
      public List<Ticket> getTickets(Event event, List<Seat> seats) {
          return edao.findTickets(event, seats);
      }
  
      @Override
      public List<Ticket> reserveSeats(Event event, List<Seat> seats) throws UnavailableException {
          if (event==null) { throw new IllegalArgumentException("no event provided"); }
          if (seats==null) { throw new IllegalArgumentException("no seat selected"); }
  
          List<Ticket> tickets = getTickets(event, seats);
          for (Ticket ticket: tickets) {
              if (ticket.isSold()) {
                  throw new UnavailableException(String.format("seat %s already sold", ticket.getSeat()));
              } else {
                  ticket.setSold(true);
              }
          }
          return tickets;
      }
  }