package de.pzzz.vertx.oauth;

import java.io.Serializable;
import java.util.Date;

import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonProperty;

/**
 * Represents an OAuth2 Token as received from IAM via client credentials flow.
 */
public class OAuthToken implements Serializable {
	private static final long serialVersionUID = -1712414758315937247L;

	private static final Integer EXPIRATION_OFFSET = 30;

	@JsonProperty("access_token")
	private String token;
	@JsonProperty("token_type")
	private String type;
	@JsonProperty("expires_in")
	private Integer expiresIn;

	@JsonIgnore
	private final Date issued;

	public OAuthToken() {
		issued = new Date();
	}

	public boolean isValid() {
		int diffSeconds = (int) Math.ceil((new Date().getTime() - issued.getTime())/1000f);
		return diffSeconds < (expiresIn - EXPIRATION_OFFSET);
	}

	public String getToken() {
		return token;
	}

	public void setToken(final String token) {
		this.token = token;
	}

	public String getType() {
		return type;
	}

	public void setType(final String type) {
		this.type = type;
	}

	public Integer getExpiresIn() {
		return expiresIn;
	}

	public void setExpiresIn(final Integer expiresIn) {
		this.expiresIn = expiresIn;
	}
}