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#ifndef AWSCREDENTIALPROVIDER_H
#define AWSCREDENTIALPROVIDER_H

#include <QUrl>
#include <QTimer>
#include <QObject>
#include <QDateTime>
#include <QElapsedTimer>
#include <QNetworkAccessManager>

namespace remoteproxy {

class AwsCredentialProvider : public QObject
{
    Q_OBJECT
public:
    explicit AwsCredentialProvider(QNetworkAccessManager *networkManager, const QUrl &awsCredentialsUrl, QObject *parent = nullptr);

    QString accessKey() const;
    QString secretAccessKey() const;
    QString sessionToken() const;

    bool isValid() const;
    bool enabled() const;

private:
    QNetworkAccessManager *m_networkManager = nullptr;
    QTimer *m_timer = nullptr;

    QElapsedTimer m_requestTimer;

    bool m_enabled = false;

    QUrl m_requestUrl;

    QString m_accessKey;
    QString m_secretAccessKey;
    QString m_sessionToken;

    QDateTime m_expirationTime;
    QDateTime m_lastUpdateTime;

    void refreshCredentials();
    void clear();

private slots:
    void onTimeout();
    void onReplyFinished();

signals:
    void credentialsChanged();

public slots:
    void enable();
    void disable();

};

}

#endif // AWSCREDENTIALPROVIDER_H