package bean;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.JoinTable;
import javax.persistence.ManyToMany;
import javax.persistence.ManyToOne;
import javax.persistence.Table;

import com.fasterxml.jackson.annotation.JsonBackReference;

@Entity
@Table(name="t_orders")
public class Order {

    /**
     * Identifiant de la commande
     */
    @Id
    @GeneratedValue(strategy=GenerationType.IDENTITY)
    private Integer id;

    /**
     * Liste des plats dans la commande
     * n-n bidirectionnelle
     */
    @ManyToMany(cascade = { CascadeType.PERSIST, CascadeType.MERGE }, fetch = FetchType.EAGER)
    @JoinTable( name="tnn_orders_dishes",
                joinColumns = @JoinColumn(name= "orderId"),
                inverseJoinColumns = @JoinColumn(name = "dishId")
    )
    private List<Dish> dishes;

    /**
     * Identifiant de l'utilisateur lié à la commande
     */
    @Column (name = "userId", insertable = false, updatable = false)
    private Integer userId;

    @ManyToOne
    @JoinColumn(name = "userId")
    @JsonBackReference
    private User user;


    /**
     * Date de la commande
     */
    @GeneratedValue(strategy=GenerationType.AUTO)
    private Date datetime = null;

    /**
     * Adresse de livraison de la commande
     */
    private String delivery = null;

    /**
     * Adresse de facturation de la commande
     */
    private String invoice = null;

    /**
     * Constructeur
     */
    public Order(){
        dishes = new ArrayList<Dish>();
    }

    /**
     * Constructeur
     * @param userId : Identifiant de l'utilisateur lié à la commande
     * @param datetime : Date de la commande
     * @param delivery : Adresse de livraison de la commande
     * @param invoice : Adresse de facturation de la commande
     */
    public Order(Date datetime, String delivery, String invoice) {
        super();
        this.datetime = datetime;
        this.delivery = delivery;
        this.invoice = invoice;
    }


    public Integer getUserId() {
        return userId;
    }
    public void setUserId(Integer integer) {
        this.userId = integer;
    }


    public Date getDatetime() {
        return datetime;
    }
    public void setDatetime(Date datetime) {
        this.datetime = datetime;
    }


    public String getDelivery() {
        return delivery;
    }
    public void setDelivery(String delivery) {
        this.delivery = delivery;
    }


    public String getInvoice() {
        return invoice;
    }
    public void setInvoice(String invoice) {
        this.invoice = invoice;
    }


    public Integer getId() {
        return id;
    }
    public void setId(Integer id){
        this.id = id;
    }


    public User getUser() {
        return user;
    }
    public void setUser(User user) {
        this.user = user;
    }

    public List<Dish> getDishes() {
        return dishes;
    }

    public void setDishes(List<Dish> dishes) {
        this.dishes = dishes;
    }

    public String toString(){
        String str = "------------ COMMANDE ---------------\n";
        str += "userId      : " + this.userId + "\n";
        str += "nb plat(s)  : " + this.getDishes().size() + "\n";
        str += "datetime    : " + this.datetime + "\n";
        str += "delivery    : " + this.delivery + "\n";
        str += "invoice     : " + this.invoice + "\n";
        str += "----------------------------------\n";
        return str;
    }

    /**
     * @return montant total de la commande
     */
    public Float amount(){
        Float amount = new Float(0.0);
        for(Dish dish : this.dishes){
            amount += dish.getPrice();
        }
        return amount;
    }
}