/* Copyright (C) 2014 by Bundesamt für Sicherheit in der Informationstechnik
 * Software engineering by Intevation GmbH
 *
 * This file is Free Software under the GNU GPL (v>=2)
 * and comes with ABSOLUTELY NO WARRANTY!
 * See LICENSE.txt for details.
 */
#ifndef CREATECERTLISTDIALOG_H
#define CREATECERTLISTDIALOG_H

#include <QDialog>
#include <QMainWindow>
#include <QLineEdit>

#include "certificate.h"

#include <polarssl/pk.h>
/**
 * @file createinstallerdialog.h
 * @brief The dialog to select the signing certificate and create a certificate list.
 */

class QListWidget;
class AdministratorWindow;

/** @brief The dialog to select the signing certificate and create a certificate list.*/
class CreateCertListDialog : public QDialog
{
    Q_OBJECT
public:
    /** @brief Create a dialog showing settings for the create certificate list
     * process
     * */
    CreateCertListDialog(AdministratorWindow *parent);
    ~CreateCertListDialog();

    /** @brief write a signed certificate list.
     *
     * @param [in] certs The certificates to include in the list
     * @param [in] filePath The path where the list should be written to
     * @param [in] listDate The date to write in the list
     * @param [in] pk The private key to sign with.
     *
     * @returns true on success false on error.
     */
    static bool writeList(const QList<Certificate>& certs,
            const QString& filePath, const QDateTime& listDate, pk_context *pk);

signals:
    /** @brief signal that is emited when the creation of a new list was successful.*/
    void creationSuccessful();

private:
    void setupGUI();

    QLineEdit *mKeyFile;
    QLineEdit *mSaveDir;
    AdministratorWindow *mAdminWindow;

    pk_context *mPk;

    /** @brief show an error message with QMessageBox
     *
     * @param [in] msg The message to show
     */
    void showErrorMessage(const QString &msg);

    /** @brief load a file into mPk
     *
     * If the file is not a valid key or an error
     * occurs mPk will be NULL after a call to this function.
     *
     * @param [in] fileName the file to load
     */
    void loadKeyFile(const QString& fileName);

private slots:
    /** @brief Open the certificate selection dialog and parse the certificate
     *
     * If the certificate can be parsed mPk is replaced by the new key
     * otherwise an error message is shown to the user.
     */
    void openCertificateSelect();
    void openSaveLocation();
    /** @brief create a valid certificate list file
     *
     * The contents of the certificate list are the certificates
     * shown in the adminWindow. It is signed with the currently
     * loaded certificate in mPk. On errors the user is
     * informed with showErrorMessage */
    void createList();
};

#endif // CREATECERTLISTDIALOG_H