/**
 * Copyright (c) 2010-2016 by the respective copyright holders.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 */
package org.openhab.binding.netatmo.internal.weather;

import java.math.BigDecimal;
import java.util.Calendar;
import java.util.List;

import org.apache.commons.lang.builder.ToStringBuilder;
import org.codehaus.jackson.annotate.JsonIgnoreProperties;
import org.codehaus.jackson.annotate.JsonProperty;
import org.openhab.binding.netatmo.internal.messages.AbstractMessagePart;
import org.openhab.binding.netatmo.internal.messages.AbstractResponse;

/**
 * Java Bean to represent a JSON response to a <code>getmeasure</code> API
 * method call.
 * <p>
 * Sample response:
 *
 * <pre>
 * {"status":"ok",
 *  "body":[{"beg_time":1367965202,
 *           "value":[[23.2,
 *                     64,
 *                     1254,
 *                     1011.5,
 *                     34]]}],
 *  "time_exec":0.0072271823883057,
 *  "time_server":1367965438}
 * </pre>
 *
 * @author Andreas Brenk
 * @author Gaël L'hopital
 * @since 1.4.0
 */
@JsonIgnoreProperties(ignoreUnknown = true)
public class MeasurementResponse extends AbstractResponse {

    @JsonIgnoreProperties(ignoreUnknown = true)
    public static class Body extends AbstractMessagePart {

        private List<List<BigDecimal>> values;
        private long begTime;

        @JsonProperty("value")
        public List<List<BigDecimal>> getValues() {
            return this.values;
        }

        @JsonProperty("beg_time")
        public long getBegTime() {
            return this.begTime;
        }

        @Override
        public String toString() {
            final ToStringBuilder builder = createToStringBuilder();
            builder.appendSuper(super.toString());
            builder.append("values", this.values);
            builder.append("begTime", this.begTime);
            return builder.toString();
        }
    }

    private String status;

    private List<Body> body;

    @JsonProperty("body")
    public List<Body> getBody() {
        return this.body;
    }

    @JsonProperty("status")
    public String getStatus() {
        return this.status;
    }

    @Override
    public String toString() {
        final ToStringBuilder builder = createToStringBuilder();
        builder.appendSuper(super.toString());
        builder.append("status", this.status);
        builder.append("body", this.body);

        return builder.toString();
    }

    public Calendar getTimeStamp() {
        Calendar result = null;
        if ((body != null) && !body.isEmpty()) {
            result = Calendar.getInstance();
            /*
             * We make the asumption that the timestamp of the first value is
             * the good one for the whole module => get(0)
             */
            result.setTimeInMillis(body.get(0).getBegTime() * 1000);
        }
        return result;
    }
}