/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.jdo.tck.pc.order;

import java.io.Serializable;
import java.util.Comparator;
import java.util.Set;
import org.apache.jdo.tck.util.DeepEquality;
import org.apache.jdo.tck.util.EqualityHelper;

public class Order implements Serializable, Comparable<Order>, Comparator<Order>, DeepEquality {

  private static final long serialVersionUID = 1L;

  long orderId;
  Set<OrderItem> items;
  long customerId;

  public Order() {}

  public Order(long orderId, long customerId) {
    this.orderId = orderId;
    this.customerId = customerId;
  }

  public Order(long orderId, Set<OrderItem> items, long customerId) {
    this.orderId = orderId;
    this.items = items;
    this.customerId = customerId;
  }

  public long getOrderId() {
    return orderId;
  }

  public void setOrderId(long orderId) {
    this.orderId = orderId;
  }

  public Set<OrderItem> getItems() {
    return items;
  }

  public void setItems(Set<OrderItem> items) {
    this.items = items;
  }

  public long getCustomerId() {
    return customerId;
  }

  public void setCustomerId(long customerId) {
    this.customerId = customerId;
  }

  /**
   * Returns <code>true</code> if all the fields of this instance are deep equal to the coresponding
   * fields of the specified Person.
   *
   * @param other the object with which to compare.
   * @param helper EqualityHelper to keep track of instances that have already been processed.
   * @return <code>true</code> if all the fields are deep equal; <code>false</code> otherwise.
   * @throws ClassCastException if the specified instances' type prevents it from being compared to
   *     this instance.
   */
  public boolean deepCompareFields(Object other, EqualityHelper helper) {
    Order otherOrder = (Order) other;
    String where = "Order<" + orderId + ">";
    return helper.equals(orderId, otherOrder.getOrderId(), where + ".order")
        & helper.equals(items, otherOrder.getItems(), where + ".items")
        & helper.equals(customerId, otherOrder.getCustomerId(), where + ".customerId");
  }

  /**
   * Compares this object with the specified Company object for order. Returns a negative integer,
   * zero, or a positive integer as this object is less than, equal to, or greater than the
   * specified object.
   *
   * @param other The Company object to be compared.
   * @return a negative integer, zero, or a positive integer as this object is less than, equal to,
   *     or greater than the specified Company object.
   */
  public int compareTo(Order other) {
    return compare(this, other);
  }

  /**
   * Compares its two Order arguments for order. Returns a negative integer, zero, or a positive
   * integer as the first argument is less than, equal to, or greater than the second.
   *
   * @param o1 the first Order object to be compared.
   * @param o2 the second Order object to be compared.
   * @return a negative integer, zero, or a positive integer as the first object is less than, equal
   *     to, or greater than the second object.
   */
  public int compare(Order o1, Order o2) {
    return EqualityHelper.compare(o1.getOrderId(), o2.getOrderId());
  }

  /**
   * Indicates whether some other object is "equal to" this one.
   *
   * @param obj the object with which to compare.
   * @return <code>true</code> if this object is the same as the obj argument; <code>false</code>
   *     otherwise.
   */
  public boolean equals(Object obj) {
    if (obj instanceof Order) {
      return compareTo((Order) obj) == 0;
    }
    return false;
  }

  public int hashCode() {
    return (int) orderId;
  }

  /**
   * The class to be used as the application identifier for the <code>Order</code> class. It
   * consists of both the orderId field.
   */
  public static class OrderOid implements Serializable, Comparable<OrderOid> {

    private static final long serialVersionUID = 1L;

    public long orderId;

    /** The required public no-arg constructor. */
    public OrderOid() {}

    public OrderOid(String s) {
      orderId = Long.parseLong(justTheOrder(s));
    }

    public String toString() {
      return this.getClass().getName() + "order:" + orderId;
    }

    /** */
    @Override
    public boolean equals(Object obj) {
      if (obj == null || !this.getClass().equals(obj.getClass())) return false;
      OrderOid o = (OrderOid) obj;
      if (this.orderId != o.orderId) {
        return false;
      }
      return true;
    }

    /** */
    @Override
    public int hashCode() {
      return (int) orderId;
    }

    protected static String justTheOrder(String str) {
      return str.substring(str.indexOf(':') + 1);
    }

    /** */
    public int compareTo(OrderOid obj) {
      return Long.compare(orderId, obj.orderId);
    }
  }
}