/****************************************************************************
**
** Copyright (C) 2017 Mapbox, Inc.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtLocation module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
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** General Public License version 3 as published by the Free Software
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** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
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** General Public License version 2.0 or (at your option) the GNU General
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****************************************************************************/

#include "qgeocodereplymapbox.h"
#include "qmapboxcommon.h"

#include <QtCore/QJsonDocument>
#include <QtCore/QJsonObject>
#include <QtCore/QJsonArray>
#include <QtPositioning/QGeoCoordinate>
#include <QtPositioning/QGeoAddress>
#include <QtPositioning/QGeoLocation>
#include <QtPositioning/QGeoRectangle>

QT_BEGIN_NAMESPACE

QGeoCodeReplyMapbox::QGeoCodeReplyMapbox(QNetworkReply *reply, QObject *parent)
:   QGeoCodeReply(parent)
{
    Q_ASSERT(parent);
    if (!reply) {
        setError(UnknownError, QStringLiteral("Null reply"));
        return;
    }

    connect(reply, &QNetworkReply::finished, this, &QGeoCodeReplyMapbox::onNetworkReplyFinished);
    connect(reply, QOverload<QNetworkReply::NetworkError>::of(&QNetworkReply::error),
            this, &QGeoCodeReplyMapbox::onNetworkReplyError);

    connect(this, &QGeoCodeReply::aborted, reply, &QNetworkReply::abort);
    connect(this, &QObject::destroyed, reply, &QObject::deleteLater);
}

QGeoCodeReplyMapbox::~QGeoCodeReplyMapbox()
{
}

void QGeoCodeReplyMapbox::onNetworkReplyFinished()
{
    QNetworkReply *reply = static_cast<QNetworkReply *>(sender());
    reply->deleteLater();

    if (reply->error() != QNetworkReply::NoError)
        return;

    QList<QGeoLocation> locations;
    QJsonDocument document = QJsonDocument::fromJson(reply->readAll());
    if (!document.isObject()) {
        setError(ParseError, tr("Response parse error"));
        return;
    }

    const QJsonArray features = document.object().value(QStringLiteral("features")).toArray();
    for (const QJsonValue &value : features)
        locations.append(QMapboxCommon::parseGeoLocation(value.toObject()));

    setLocations(locations);

    setFinished(true);
}

void QGeoCodeReplyMapbox::onNetworkReplyError(QNetworkReply::NetworkError error)
{
    Q_UNUSED(error)
    QNetworkReply *reply = static_cast<QNetworkReply *>(sender());
    reply->deleteLater();
    setError(QGeoCodeReply::CommunicationError, reply->errorString());
}

QT_END_NAMESPACE
