/* tests/test_editinteractor.h
   Copyright (C) 2007 Klarälvdalens Datakonsult AB

   This file is part of QGPGME's regression test suite.

   QGPGME is free software; you can redistribute it and/or modify it
   under the terms of the GNU Library General Public License as published
   by the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   QGPGME is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU Library General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with QGPGME; see the file COPYING.LIB.  If not, write to the
   Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA. */

// -*- c++ -*-

#ifndef __QGPGME_TESTS_TEST_EDITINTERACTOR_H__
#define __QGPGME_TESTS_TEST_EDITINTERACTOR_H__

#include <qgpgme/eventloopinteractor.h>

#include <gpgme++/editinteractor.h>
#include <gpgme++/context.h>
#include <gpgme++/error.h>
#include <gpgme++/data.h>
#include <gpgme++/key.h>
#include <gpgme++/keylistresult.h>

#include <gpg-error.h>

#include <QtCore>

#include <memory>
#include <stdexcept>
#include <cassert>
#include <string>

class KeyResolveJob : QObject {
    Q_OBJECT
public:
    explicit KeyResolveJob( GpgME::Protocol proto=GpgME::OpenPGP, QObject * p=0 )
        : QObject( p ),
          m_ctx( GpgME::Context::createForProtocol( proto ) ),
          m_done( false ),
          m_loop( 0 )
    {
        assert( m_ctx.get() );
        connect( QGpgME::EventLoopInteractor::instance(), SIGNAL(nextKeyEventSignal(GpgME::Context*,GpgME::Key)),
                 this, SLOT(slotNextKey(GpgME::Context*,GpgME::Key)) );
        connect( QGpgME::EventLoopInteractor::instance(), SIGNAL(operationDoneEventSignal(GpgME::Context*,GpgME::Error)),
                 this, SLOT(slotDone(GpgME::Context*,GpgME::Error)) );

        m_ctx->setManagedByEventLoopInteractor( true );
    }
    
    GpgME::Error start( const char * pattern, bool secretOnly=false ) {
        return m_ctx->startKeyListing( pattern, secretOnly );
    }

    GpgME::Error waitForDone() {
        if ( m_done )
            return m_error;
        QEventLoop loop;
        m_loop = &loop;
        loop.exec();
        m_loop = 0;
        return m_error;
    }

    std::vector<GpgME::Key> keys() const {
        return m_keys;
    }

private Q_SLOTS:
    void slotNextKey( GpgME::Context * ctx, const GpgME::Key & key ) {
        if ( ctx != m_ctx.get() )
            return;
        m_keys.push_back( key );
    }
    void slotDone( GpgME::Context * ctx, const GpgME::Error & err ) {
        if ( ctx != m_ctx.get() )
            return;
        m_error = err;
        m_done = true;
        if ( m_loop )
            m_loop->quit();
    }

private:
    std::auto_ptr<GpgME::Context> m_ctx;
    GpgME::Error m_error;
    bool m_done;
    std::vector<GpgME::Key> m_keys;
    QEventLoop * m_loop;
};

static int test_editinteractor( std::auto_ptr<GpgME::EditInteractor> ei, const char * keyid, GpgME::Protocol proto=GpgME::OpenPGP ) {

    using namespace GpgME;

    KeyResolveJob job( proto );
    if ( const GpgME::Error err = job.start( keyid ) )
        throw std::runtime_error( std::string( "startKeyListing: " ) + gpg_strerror( err.encodedError() ) );

    if ( const GpgME::Error err = job.waitForDone() )
        throw std::runtime_error( std::string( "nextKey: " ) + gpg_strerror( err.encodedError() ) );

    const Key key = job.keys().front();

    const std::auto_ptr<Context> ctx( Context::createForProtocol( proto ) );

    ctx->setManagedByEventLoopInteractor( true );

    Data data;
    ei->setDebugChannel( stderr );

    QObject::connect( QGpgME::EventLoopInteractor::instance(), SIGNAL(operationDoneEventSignal(GpgME::Context*,GpgME::Error)),
                      QCoreApplication::instance(), SLOT(quit()) );

    if ( Error err = ctx->startEditing( key, ei, data ) )
        throw std::runtime_error( std::string( "startEditing: " ) + gpg_strerror( err.encodedError() ) );
    // ei released in passing to startEditing

    return QCoreApplication::instance()->exec();
}

#endif // __QGPGME_TESTS_TEST_EDITINTERACTOR_H__
