/*******************************************************************************
 * Australian National University Data Commons
 * Copyright (C) 2013  The Australian National University
 * 
 * This file is part of Australian National University Data Commons.
 * 
 * Australian National University Data Commons is free software: you
 * can redistribute it and/or modify it under the terms of the GNU
 * General Public License as published by the Free Software Foundation,
 * either version 3 of the License, or (at your option) any later
 * version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/

package au.edu.anu.datacommons.collectionrequest;

import java.util.Date;

import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.PrePersist;
import javax.persistence.Table;

import au.edu.anu.datacommons.data.db.model.Users;

/**
 * Entity class representing a current or historic state of a collection request. Every status change of a collection
 * request requires a new row to be persisted.
 * 
 * @author Rahul Khanna
 * 
 */
@Entity
@Table(name = "collection_request_status")
public class CollectionRequestStatus {
	public enum ReqStatus {
		SUBMITTED, ACCEPTED, REJECTED, PENDING
	};

	private Long id;
	private CollectionRequest collectionRequest;
	private ReqStatus status;
	private String reason;
	private Users user;
	private Date timestamp;

	public CollectionRequestStatus() {
	}

	public CollectionRequestStatus(CollectionRequest collReq, ReqStatus status, String reason, Users user) {
		this.collectionRequest = collReq;
		this.status = status;
		this.reason = reason;
		this.user = user;
	}

	@Id
	@GeneratedValue(strategy = GenerationType.IDENTITY)
	@Column(name = "id")
	public Long getId() {
		return id;
	}

	public void setId(Long id) {
		this.id = id;
	}

	@ManyToOne(optional = false, cascade = CascadeType.ALL)
	@JoinColumn(name = "request_fk")
	public CollectionRequest getCollectionRequest() {
		return collectionRequest;
	}

	public void setCollectionRequest(CollectionRequest collectionRequest) {
		this.collectionRequest = collectionRequest;
	}

	@Column(name = "status", nullable = false)
	public ReqStatus getStatus() {
		return status;
	}

	public void setStatus(ReqStatus status) {
		this.status = status;
	}

	@Column(name = "timestamp", nullable = false)
	public Date getTimestamp() {
		return timestamp;
	}

	public void setTimestamp(Date timestamp) {
		this.timestamp = timestamp;
	}

	@Column(name = "reason", nullable = false)
	public String getReason() {
		return reason;
	}

	public void setReason(String reason) {
		this.reason = reason;
	}

	@ManyToOne(optional = false)
	@JoinColumn(name = "user_fk")
	public Users getUser() {
		return user;
	}

	public void setUser(Users user) {
		this.user = user;
	}

	@PrePersist
	protected void onCreate() {
		timestamp = new Date();
	}
}