package envoy.server.data;

import java.util.Date;
import java.util.stream.Collectors;

import javax.persistence.*;

/**
 * This class serves as a way to let Hibernate communicate with the server
 * without bringing the dependency of JPA/Hibernate into the client.<br>
 * It will be referenced as "database user" to clarify between the different
 * user objects.<br>
 * <br>
 * Project: <strong>envoy-server-standalone</strong><br>
 * File: <strong>User.java</strong><br>
 * Created: <strong>02.01.2020</strong><br>
 *
 * @author Kai S. K. Engelbart
 * @author Maximilian K&auml;fer
 * @since Envoy Server Standalone v0.1-alpha
 */
@Entity
@Table(name = "users")
@NamedQueries(
	{ @NamedQuery(query = "SELECT u FROM User u WHERE u.name = :name", name = "getUserByName"), @NamedQuery(
		query = "SELECT u.contacts FROM User u WHERE u = :user",
		name = "getContactsOfUser"
	), @NamedQuery(
		query = "SELECT u FROM User u WHERE (lower(u.name) LIKE lower(:searchPhrase) AND u <> :context AND NOT :context in elements(u.contacts))",
		name = "searchUsers"
	) }
)
public final class User extends Contact {

	private byte[] passwordHash;

	@Temporal(TemporalType.TIMESTAMP)
	private Date						lastSeen;
	private envoy.data.User.UserStatus	status;

	/**
	 * {@inheritDoc}
	 */
	@Override
	public envoy.data.User toCommon() {
		return new envoy.data.User(id, name, status, contacts.stream().map(Contact::toCommon).collect(Collectors.toSet()));
	}

	/**
	 * @return the passwordHash of a {link envoy.data.User}
	 * @since Envoy Server Standalone v0.1-alpha
	 */
	public byte[] getPasswordHash() { return passwordHash; }

	/**
	 * @param passwordHash the password hash to set
	 * @since Envoy Server Standalone v0.1-alpha
	 * @see User#getPasswordHash()
	 */
	public void setPasswordHash(byte[] passwordHash) { this.passwordHash = passwordHash; }

	/**
	 * @return the last date an {link envoy.data.User} has been online
	 * @since Envoy Server Standalone v0.1-alpha
	 */
	public Date getLastSeen() { return lastSeen; }

	/**
	 * @param lastSeen the latest date at which has been seen to set
	 * @since Envoy Server Standalone v0.1-alpha
	 * @see User#getLastSeen()
	 */
	public void setLastSeen(Date lastSeen) { this.lastSeen = lastSeen; }

	/**
	 * @return the status of a {link envoy.data.User}
	 * @since Envoy Server Standalone v0.1-alpha
	 */
	public envoy.data.User.UserStatus getStatus() { return status; }

	/**
	 * @param status the status to set
	 * @since Envoy Server Standalone v0.1-alpha
	 * @see User#getStatus()
	 */
	public void setStatus(envoy.data.User.UserStatus status) { this.status = status; }
}