/**************************************************************************
**
** Copyright (c) 2013 BogDan Vatra <bog_dan_ro@yahoo.com>
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
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** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
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****************************************************************************/

#include "androiddebugsupport.h"

#include "androiddeploystep.h"
#include "androidglobal.h"
#include "androidrunner.h"
#include "androidmanager.h"

#include <debugger/debuggerengine.h>
#include <debugger/debuggerplugin.h>
#include <debugger/debuggerkitinformation.h>
#include <debugger/debuggerrunner.h>
#include <debugger/debuggerstartparameters.h>

#include <projectexplorer/target.h>
#include <qt4projectmanager/qt4buildconfiguration.h>
#include <qt4projectmanager/qt4nodes.h>
#include <qt4projectmanager/qt4project.h>
#include <qtsupport/qtkitinformation.h>

#include <QDir>

using namespace Debugger;
using namespace ProjectExplorer;
using namespace Qt4ProjectManager;

namespace Android {
namespace Internal {

static const char * const qMakeVariables[] = {
         "QT_INSTALL_LIBS",
         "QT_INSTALL_PLUGINS",
         "QT_INSTALL_IMPORTS"
};

static QStringList qtSoPaths(QtSupport::BaseQtVersion *qtVersion)
{
    if (!qtVersion)
        return QStringList();

    QSet<QString> paths;
    for (uint i = 0; i < sizeof qMakeVariables / sizeof qMakeVariables[0]; ++i) {
        QString path = qtVersion->qmakeProperty(qMakeVariables[i]);
        if (path.isNull())
            continue;
        QDirIterator it(path, QStringList() << QLatin1String("*.so"), QDir::Files, QDirIterator::Subdirectories);
        while (it.hasNext()) {
            it.next();
            paths.insert(it.fileInfo().absolutePath());
        }
    }
    return paths.toList();
}

RunControl *AndroidDebugSupport::createDebugRunControl(AndroidRunConfiguration *runConfig, QString *errorMessage)
{
    Target *target = runConfig->target();
    Qt4Project *project = static_cast<Qt4Project *>(target->project());

    DebuggerStartParameters params;
    params.startMode = AttachToRemoteServer;
    params.displayName = AndroidManager::packageName(target);
    params.remoteSetupNeeded = true;

    if (runConfig->debuggerAspect()->useCppDebugger()) {
        params.languages |= CppLanguage;
        Kit *kit = target->kit();
        params.sysRoot = SysRootKitInformation::sysRoot(kit).toString();
        params.debuggerCommand = DebuggerKitInformation::debuggerCommand(kit).toString();
        if (ToolChain *tc = ToolChainKitInformation::toolChain(kit))
            params.toolChainAbi = tc->targetAbi();
        params.executable = project->rootQt4ProjectNode()->buildDir() + QLatin1String("/app_process");
        params.remoteChannel = runConfig->remoteChannel();
        params.solibSearchPath.clear();
        QList<Qt4ProFileNode *> nodes = project->allProFiles();
        foreach (Qt4ProFileNode *node, nodes)
            if (node->projectType() == ApplicationTemplate)
                params.solibSearchPath.append(node->targetInformation().buildDir);
        QtSupport::BaseQtVersion *version = QtSupport::QtKitInformation::qtVersion(kit);
        params.solibSearchPath.append(qtSoPaths(version));
    }
    if (runConfig->debuggerAspect()->useQmlDebugger()) {
        params.languages |= QmlLanguage;
        params.qmlServerAddress = QLatin1String("localhost");
        params.qmlServerPort = runConfig->debuggerAspect()->qmlDebugServerPort();
        //TODO: Not sure if these are the right paths.
        params.projectSourceDirectory = project->projectDirectory();
        params.projectSourceFiles = project->files(Qt4Project::ExcludeGeneratedFiles);
        params.projectBuildDirectory = project->rootQt4ProjectNode()->buildDir();
    }

    DebuggerRunControl * const debuggerRunControl
        = DebuggerPlugin::createDebugger(params, runConfig, errorMessage);
    new AndroidDebugSupport(runConfig, debuggerRunControl);
    return debuggerRunControl;
}

AndroidDebugSupport::AndroidDebugSupport(AndroidRunConfiguration *runConfig,
    DebuggerRunControl *runControl)
    : QObject(runControl), m_runControl(runControl),
      m_runner(new AndroidRunner(this, runConfig, true)),
      m_gdbServerPort(5039), m_qmlPort(runConfig->debuggerAspect()->qmlDebugServerPort())
{
    Q_ASSERT(runConfig->debuggerAspect()->useCppDebugger() || runConfig->debuggerAspect()->useQmlDebugger());

    connect(m_runControl->engine(), SIGNAL(requestRemoteSetup()),
            m_runner, SLOT(start()));
    connect(m_runControl, SIGNAL(finished()),
            m_runner, SLOT(stop()));

    connect(m_runner, SIGNAL(remoteProcessStarted(int,int)),
        SLOT(handleRemoteProcessStarted(int,int)));
    connect(m_runner, SIGNAL(remoteProcessFinished(QString)),
        SLOT(handleRemoteProcessFinished(QString)));

    connect(m_runner, SIGNAL(remoteErrorOutput(QByteArray)),
        SLOT(handleRemoteErrorOutput(QByteArray)));
    connect(m_runner, SIGNAL(remoteOutput(QByteArray)),
        SLOT(handleRemoteOutput(QByteArray)));
}

void AndroidDebugSupport::handleRemoteProcessStarted(int gdbServerPort, int qmlPort)
{
    disconnect(m_runner, SIGNAL(remoteProcessStarted(int,int)),
        this, SLOT(handleRemoteProcessStarted(int,int)));
    m_runControl->engine()->notifyEngineRemoteSetupDone(gdbServerPort, qmlPort);
}

void AndroidDebugSupport::handleRemoteProcessFinished(const QString &errorMsg)
{
    disconnect(m_runner, SIGNAL(remoteProcessFinished(QString)),
        this,SLOT(handleRemoteProcessFinished(QString)));
    m_runControl->engine()->notifyEngineRemoteSetupFailed(errorMsg);
}

void AndroidDebugSupport::handleRemoteOutput(const QByteArray &output)
{
    if (m_runControl) {
        if (m_runControl->engine())
            m_runControl->engine()->showMessage(QString::fromUtf8(output), AppOutput);
        else
            m_runControl->showMessage(QString::fromUtf8(output), AppOutput);
    }
}

void AndroidDebugSupport::handleRemoteErrorOutput(const QByteArray &output)
{
    if (m_runControl) {
        if (m_runControl->engine())
            m_runControl->engine()->showMessage(QString::fromUtf8(output), AppError);
        else
            m_runControl->showMessage(QString::fromUtf8(output), AppError);
    }
}

} // namespace Internal
} // namespace Android