#ifndef UTGITCREDPROVIDER_H
#define UTGITCREDPROVIDER_H

class UTGitCredProvider : public QObject, public PassphraseProvider
{
    Q_OBJECT
private:
    std::unique_ptr<QEventLoop> m_loop;
    std::unique_ptr<QSemaphore> m_sem;
    char *m_user;
    char *m_password;
    bool m_canceled;

public slots:
    void handleResponse(bool canceled, QString user, QString password)
    {
        if (!canceled) {
            gpgrt_asprintf(&m_user, "%s", user.toUtf8().constData());
            gpgrt_asprintf(&m_passphrase, "%s", password.toUtf8().constData());
        }
        else
            m_canceled = true;
        m_loop->quit();
    };


public:
    UTGitCredProvider():
        m_loop(std::unique_ptr<QEventLoop>(new QEventLoop)),
        m_sem(std::unique_ptr<QSemaphore>(new QSemaphore(1))),
        m_user(nullptr),
        m_password(nullptr),
        m_canceled(false)
    {}

    int cred_acquire_cb(git_cred **out,
		const char *url,
		const char *username_from_url,
		unsigned int allowed_types,
		void *payload) {
        if (!m_sem->tryAcquire(1, 3000))
        {
            qWarning() << "Cannot acquire UTGitCredProvider semaphore.";
            canceled = true;
            return nullptr;
        }

        m_passphrase = nullptr;
        m_canceled = false;
        

        qDebug() << "Call the QML Dialog Cred Provider";
        QMetaObject::invokeMethod(
            Gpg::instance()->getWindow(), "callCredDialog",
            Q_ARG(QVariant, username_from_url)
        );

        qDebug() << "Waiting for response";

        QObject::connect(
            Gpg::instance()->getWindow(), SIGNAL(responseCredDialog(bool, QString, QString)),
            this, SLOT(handleResponse(bool, QString, QString))
        );
        m_loop->exec();

        qDebug() << "Set Cred";
        error = git_cred_userpass_plaintext_new(out, username, password);

        qDebug() << "Clean";
        if (m_passphrase) free(m_passphrase);
        if (m_user) free(m_user);
        m_canceled = false;
        m_sem->release(1);
        return ret;
    };
};
#endif