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#include "declarativetoolsclient.h"
#include <QMetaEnum>
#include <QStringList>

namespace QmlDebug {
namespace Internal {

namespace Constants {

enum DesignTool {
    NoTool = 0,
    SelectionToolMode = 1,
    MarqueeSelectionToolMode = 2,
    MoveToolMode = 3,
    ResizeToolMode = 4,
    ZoomMode = 6
};

}

class InspectorProtocol : public QObject
{
    Q_OBJECT
    Q_ENUMS(Message Tool)

public:
    enum Message {
        AnimationSpeedChanged  = 0,
        AnimationPausedChanged = 19, // highest value
        ChangeTool             = 1,
        ClearComponentCache    = 2,
        ColorChanged           = 3,
        CreateObject           = 5,
        CurrentObjectsChanged  = 6,
        DestroyObject          = 7,
        MoveObject             = 8,
        ObjectIdList           = 9,
        Reload                 = 10,
        Reloaded               = 11,
        SetAnimationSpeed      = 12,
        SetAnimationPaused     = 18,
        SetCurrentObjects      = 14,
        SetDesignMode          = 15,
        ShowAppOnTop           = 16,
        ToolChanged            = 17
    };

    enum Tool {
        ColorPickerTool,
        SelectMarqueeTool,
        SelectTool,
        ZoomTool
    };

    static inline QString toString(Message message)
    {
        return staticMetaObject.enumerator(0).valueToKey(message);
    }

    static inline QString toString(Tool tool)
    {
        return staticMetaObject.enumerator(1).valueToKey(tool);
    }
};

inline QDataStream & operator<< (QDataStream &stream, InspectorProtocol::Message message)
{
    return stream << static_cast<quint32>(message);
}

inline QDataStream & operator>> (QDataStream &stream, InspectorProtocol::Message &message)
{
    quint32 i;
    stream >> i;
    message = static_cast<InspectorProtocol::Message>(i);
    return stream;
}

inline QDebug operator<< (QDebug dbg, InspectorProtocol::Message message)
{
    dbg << InspectorProtocol::toString(message);
    return dbg;
}

inline QDataStream & operator<< (QDataStream &stream, InspectorProtocol::Tool tool)
{
    return stream << static_cast<quint32>(tool);
}

inline QDataStream & operator>> (QDataStream &stream, InspectorProtocol::Tool &tool)
{
    quint32 i;
    stream >> i;
    tool = static_cast<InspectorProtocol::Tool>(i);
    return stream;
}

inline QDebug operator<< (QDebug dbg, InspectorProtocol::Tool tool)
{
    dbg << InspectorProtocol::toString(tool);
    return dbg;
}

} // internal

using namespace Internal;

DeclarativeToolsClient::DeclarativeToolsClient(QmlDebugConnection *client)
    : BaseToolsClient(client,QLatin1String("QDeclarativeObserverMode")),
      m_connection(client)
{
    setObjectName(name());
}

void DeclarativeToolsClient::messageReceived(const QByteArray &message)
{
    QDataStream ds(message);

    InspectorProtocol::Message type;
    ds >> type;

    switch (type) {
    case InspectorProtocol::CurrentObjectsChanged: {
        int objectCount;
        ds >> objectCount;

        log(LogReceive, type, QString("%1 [list of debug ids]").arg(objectCount));

        m_currentDebugIds.clear();

        for (int i = 0; i < objectCount; ++i) {
            int debugId;
            ds >> debugId;
            if (debugId != -1)
                m_currentDebugIds << debugId;
        }

        emit currentObjectsChanged(m_currentDebugIds);
        break;
    }
    case InspectorProtocol::ToolChanged: {
        int toolId;
        ds >> toolId;

        log(LogReceive, type, QString::number(toolId));

        if (toolId == Constants::ZoomMode) {
            emit zoomToolActivated();
        } else if (toolId == Constants::SelectionToolMode) {
            emit selectToolActivated();
        } else if (toolId == Constants::MarqueeSelectionToolMode) {
            emit selectMarqueeToolActivated();
        }
        break;
    }
    case InspectorProtocol::AnimationSpeedChanged: {
        qreal slowDownFactor;
        ds >> slowDownFactor;

        log(LogReceive, type, QString::number(slowDownFactor));

        emit animationSpeedChanged(slowDownFactor);
        break;
    }
    case InspectorProtocol::AnimationPausedChanged: {
        bool paused;
        ds >> paused;

        log(LogReceive, type, paused ? QLatin1String("true")
                                     : QLatin1String("false"));

        emit animationPausedChanged(paused);
        break;
    }
    case InspectorProtocol::SetDesignMode: {
        bool inDesignMode;
        ds >> inDesignMode;

        log(LogReceive, type, QLatin1String(inDesignMode ? "true" : "false"));

        emit designModeBehaviorChanged(inDesignMode);
        break;
    }
    case InspectorProtocol::ShowAppOnTop: {
        bool showAppOnTop;
        ds >> showAppOnTop;

        log(LogReceive, type, QLatin1String(showAppOnTop ? "true" : "false"));

        emit showAppOnTopChanged(showAppOnTop);
        break;
    }
    case InspectorProtocol::Reloaded: {
        log(LogReceive, type);
        emit reloaded();
        break;
    }
    default:
        log(LogReceive, type, QLatin1String("Warning: Not handling message"));
    }
}

QList<int> DeclarativeToolsClient::currentObjects() const
{
    return m_currentDebugIds;
}

void DeclarativeToolsClient::setCurrentObjects(const QList<int> &debugIds)
{
    if (!m_connection || !m_connection->isConnected())
        return;

    if (debugIds == m_currentDebugIds)
        return;

    m_currentDebugIds = debugIds;

    QByteArray message;
    QDataStream ds(&message, QIODevice::WriteOnly);

    InspectorProtocol::Message cmd = InspectorProtocol::SetCurrentObjects;
    ds << cmd
       << debugIds.length();

    foreach (int id, debugIds) {
        ds << id;
    }

    log(LogSend, cmd, QString("%1 [list of ids]").arg(debugIds.length()));

    sendMessage(message);
}

void DeclarativeToolsClient::setObjectIdList(
        const QList<ObjectReference> &objectRoots)
{
    QByteArray message;
    QDataStream ds(&message, QIODevice::WriteOnly);

    QList<int> debugIds;
    QList<QString> objectIds;

    foreach (const ObjectReference &ref, objectRoots)
        recurseObjectIdList(ref, debugIds, objectIds);

    InspectorProtocol::Message cmd = InspectorProtocol::ObjectIdList;
    ds << cmd
       << debugIds.length();

    Q_ASSERT(debugIds.length() == objectIds.length());

    for (int i = 0; i < debugIds.length(); ++i) {
        ds << debugIds[i] << objectIds[i];
    }

    log(LogSend, cmd,
        QString("%1 %2 [list of debug / object ids]").arg(debugIds.length()));

    sendMessage(message);
}

void DeclarativeToolsClient::clearComponentCache()
{
    if (!m_connection || !m_connection->isConnected())
        return;

    QByteArray message;
    QDataStream ds(&message, QIODevice::WriteOnly);

    InspectorProtocol::Message cmd = InspectorProtocol::ClearComponentCache;
    ds << cmd;

    log(LogSend, cmd);

    sendMessage(message);
}

void DeclarativeToolsClient::reload(const QHash<QString,
                                          QByteArray> &changesHash)
{
    Q_UNUSED(changesHash);

    if (!m_connection || !m_connection->isConnected())
        return;

    QByteArray message;
    QDataStream ds(&message, QIODevice::WriteOnly);

    InspectorProtocol::Message cmd = InspectorProtocol::Reload;
    ds << cmd;

    log(LogSend, cmd);

    sendMessage(message);
}

void DeclarativeToolsClient::setDesignModeBehavior(bool inDesignMode)
{
    if (!m_connection || !m_connection->isConnected())
        return;

    QByteArray message;
    QDataStream ds(&message, QIODevice::WriteOnly);

    InspectorProtocol::Message cmd = InspectorProtocol::SetDesignMode;
    ds << cmd
       << inDesignMode;

    log(LogSend, cmd, QLatin1String(inDesignMode ? "true" : "false"));

    sendMessage(message);
}

void DeclarativeToolsClient::setAnimationSpeed(qreal slowDownFactor)
{
    if (!m_connection || !m_connection->isConnected())
        return;

    QByteArray message;
    QDataStream ds(&message, QIODevice::WriteOnly);

    InspectorProtocol::Message cmd = InspectorProtocol::SetAnimationSpeed;
    ds << cmd
       << slowDownFactor;


    log(LogSend, cmd, QString::number(slowDownFactor));

    sendMessage(message);
}

void DeclarativeToolsClient::setAnimationPaused(bool paused)
{
    if (!m_connection || !m_connection->isConnected())
        return;

    QByteArray message;
    QDataStream ds(&message, QIODevice::WriteOnly);

    InspectorProtocol::Message cmd = InspectorProtocol::SetAnimationPaused;
    ds << cmd
       << paused;

    log(LogSend, cmd, paused ? QLatin1String("true") : QLatin1String("false"));

    sendMessage(message);
}

void DeclarativeToolsClient::changeToSelectTool()
{
    if (!m_connection || !m_connection->isConnected())
        return;

    QByteArray message;
    QDataStream ds(&message, QIODevice::WriteOnly);

    InspectorProtocol::Message cmd = InspectorProtocol::ChangeTool;
    InspectorProtocol::Tool tool = InspectorProtocol::SelectTool;
    ds << cmd
       << tool;

    log(LogSend, cmd, InspectorProtocol::toString(tool));

    sendMessage(message);
}

void DeclarativeToolsClient::changeToSelectMarqueeTool()
{
    if (!m_connection || !m_connection->isConnected())
        return;

    QByteArray message;
    QDataStream ds(&message, QIODevice::WriteOnly);

    InspectorProtocol::Message cmd = InspectorProtocol::ChangeTool;
    InspectorProtocol::Tool tool = InspectorProtocol::SelectMarqueeTool;
    ds << cmd
       << tool;

    log(LogSend, cmd, InspectorProtocol::toString(tool));

    sendMessage(message);
}

void DeclarativeToolsClient::changeToZoomTool()
{
    if (!m_connection || !m_connection->isConnected())
        return;

    QByteArray message;
    QDataStream ds(&message, QIODevice::WriteOnly);

    InspectorProtocol::Message cmd = InspectorProtocol::ChangeTool;
    InspectorProtocol::Tool tool = InspectorProtocol::ZoomTool;
    ds << cmd
       << tool;

    log(LogSend, cmd, InspectorProtocol::toString(tool));

    sendMessage(message);
}

void DeclarativeToolsClient::showAppOnTop(bool showOnTop)
{
    if (!m_connection || !m_connection->isConnected())
        return;

    QByteArray message;
    QDataStream ds(&message, QIODevice::WriteOnly);

    InspectorProtocol::Message cmd = InspectorProtocol::ShowAppOnTop;
    ds << cmd << showOnTop;

    log(LogSend, cmd, QLatin1String(showOnTop ? "true" : "false"));

    sendMessage(message);
}

void DeclarativeToolsClient::createQmlObject(const QString &qmlText,
                                           int parentDebugId,
                                           const QStringList &imports,
                                           const QString &filename, int order)
{
    if (!m_connection || !m_connection->isConnected())
        return;

    QByteArray message;
    QDataStream ds(&message, QIODevice::WriteOnly);

    InspectorProtocol::Message cmd = InspectorProtocol::CreateObject;
    ds << cmd
       << qmlText
       << parentDebugId
       << imports
       << filename
       << order;

    log(LogSend, cmd, QString("%1 %2 [%3] %4").arg(qmlText,
                                                   QString::number(parentDebugId),
                                                   imports.join(","), filename));

    sendMessage(message);
}

void DeclarativeToolsClient::destroyQmlObject(int debugId)
{
    if (!m_connection || !m_connection->isConnected())
        return;
    QByteArray message;
    QDataStream ds(&message, QIODevice::WriteOnly);

    InspectorProtocol::Message cmd = InspectorProtocol::DestroyObject;
    ds << cmd << debugId;

    log(LogSend, cmd, QString::number(debugId));

    sendMessage(message);
}

void DeclarativeToolsClient::reparentQmlObject(int debugId, int newParent)
{
    if (!m_connection || !m_connection->isConnected())
        return;
    QByteArray message;
    QDataStream ds(&message, QIODevice::WriteOnly);

    InspectorProtocol::Message cmd = InspectorProtocol::MoveObject;
    ds << cmd
       << debugId
       << newParent;

    log(LogSend, cmd, QString("%1 %2").arg(QString::number(debugId),
                                           QString::number(newParent)));

    sendMessage(message);
}


void DeclarativeToolsClient::applyChangesToQmlFile()
{
    if (!m_connection || !m_connection->isConnected())
        return;

    // TODO
}

void DeclarativeToolsClient::applyChangesFromQmlFile()
{
    if (!m_connection || !m_connection->isConnected())
        return;

    // TODO
}

void DeclarativeToolsClient::log(LogDirection direction,
                               int message,
                               const QString &extra)
{
    QString msg;
    if (direction == LogSend)
        msg += QLatin1String("sending ");
    else
        msg += QLatin1String("receiving ");

    InspectorProtocol::Message msgType
            = static_cast<InspectorProtocol::Message>(message);
    msg += InspectorProtocol::toString(msgType);
    msg += QLatin1Char(' ');
    msg += extra;
    emit logActivity(name(), msg);
}

} // namespace QmlDebug

#include "declarativetoolsclient.moc"