package dst3.managedBeans;

import java.util.List;
import java.util.ResourceBundle;

import javax.ejb.EJB;
import javax.faces.application.FacesMessage;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
import javax.faces.context.FacesContext;

import dst3.dto.FlightInfo;
import dst3.dto.ShoppingCartDto;
import dst3.ejb.BookingManagerBean;
import dst3.ejb.exception.LoginException;
import dst3.ejb.exception.NotEnoughSeatsException;
import dst3.ejb.exception.UnknownFlightException;

@ManagedBean(name = "shoppingCartBean")
@SessionScoped
public class ShoppingCartBean {
    private final ResourceBundle rb = ResourceBundle.getBundle("messages");

    @EJB
    private BookingManagerBean bookingManagerBean;

    private FlightInfo currentFlight;
    private Double totalPrice = new Double(0);

    private List<ShoppingCartDto> shoppingCart;

    private boolean loggedin = false;
    private String username;
    private String password;

    public boolean isLoggedin() {
        return loggedin;
    }

    public void logout() {
        loggedin = false;
        FacesContext ctx = FacesContext.getCurrentInstance();
        ctx.addMessage("home:notification", new FacesMessage(rb
                .getString("logoutMessage")));
    }

    public boolean login() {
        boolean success = true;
        FacesContext ctx;

        try {
            bookingManagerBean.login(username, password);
        } catch (LoginException e) {
            ctx = FacesContext.getCurrentInstance();
            ctx.addMessage("login:notification", new FacesMessage(rb
                    .getString("loginError")));
            success = false;
        }

        if (success) {
            ctx = FacesContext.getCurrentInstance();
            ctx.addMessage("home:notification", new FacesMessage(rb
                    .getString("loginMessage")));
        }
        loggedin = true;
        return success;
    }

    public boolean addTickets() {
        boolean success = true;
        try {
            bookingManagerBean.addTickets(currentFlight.getId(), Integer
                    .parseInt(currentFlight.getNrOfTickets()));
        } catch (NumberFormatException e) {
            FacesContext ctx = FacesContext.getCurrentInstance();
            ctx.addMessage("shoppingCart:notification", new FacesMessage(rb
                    .getString("numberFormatException")));
            success = false;
        } catch (UnknownFlightException e) {
            FacesContext ctx = FacesContext.getCurrentInstance();
            ctx.addMessage("shoppingCart:notification", new FacesMessage(rb
                    .getString("unknownFlightException")));
            success = false;
        } catch (NotEnoughSeatsException e) {
            FacesContext ctx = FacesContext.getCurrentInstance();
            ctx.addMessage("shoppingCart:notification", new FacesMessage(rb
                    .getString("notEnoughSeatsException")));
            success = false;
        }

        // TODO msg entfernen.
        FacesContext ctx = FacesContext.getCurrentInstance();
        ctx.addMessage("shoppingCart:notification", new FacesMessage(
                currentFlight.getId() + " " + currentFlight.getNrOfTickets()));

        return success;
    }

    public boolean removeFlight() {
        boolean success = true;
        bookingManagerBean.removeTickets(currentFlight.getId());
        return success;
    }

    public boolean buyTickets() {
        boolean success = true;
        if (!loggedin) {
            FacesContext ctx = FacesContext.getCurrentInstance();
            ctx.addMessage("shoppingCart:notification", new FacesMessage(rb
                    .getString("notLoggedIn")));
            success = false;
        } else {
            FacesContext ctx = FacesContext.getCurrentInstance();
            ctx.addMessage("shoppingCart:notification", new FacesMessage(rb
                    .getString("ticketsBooked")));
            // TODO buchen
        }
        return success;
    }

    public void emptyShoopingCartOnLogout() {
        loggedin = false;
    }

    public List<ShoppingCartDto> getShoppingCart() {
        shoppingCart = bookingManagerBean.getShoppingCartData();
        return shoppingCart;
    }

    public Double getTotalPrice() {
        totalPrice = bookingManagerBean.getPrice().doubleValue();
        return totalPrice;
    }

    public void setTotalPrice(Double totalPrice) {
        this.totalPrice = totalPrice;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public FlightInfo getCurrentFlight() {
        return currentFlight;
    }

    public void setCurrentFlight(FlightInfo currentFlight) {
        this.currentFlight = currentFlight;
    }
}