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#ifndef USER_RESOURCE_CONTROLLER_H
#define USER_RESOURCE_CONTROLLER_H

#include "content/public/renderer/render_thread_observer.h"

#include "common/user_script_data.h"

#include <QtCore/QHash>
#include <QtCore/QSet>

namespace blink {
class WebLocalFrame;
}

namespace content {
class RenderFrame;
class RenderView;
}

class UserResourceController : public content::RenderThreadObserver
{

public:
    static UserResourceController *instance();
    UserResourceController();
    void renderFrameCreated(content::RenderFrame *);
    void renderViewCreated(content::RenderView *);
    void renderViewDestroyed(content::RenderView *renderView);
    void addScriptForView(const UserScriptData &, content::RenderView *);
    void removeScriptForView(const UserScriptData &, content::RenderView *);
    void clearScriptsForView(content::RenderView *);

    void RunScriptsAtDocumentEnd(content::RenderFrame *render_frame);

private:
    Q_DISABLE_COPY(UserResourceController)

    class RenderFrameObserverHelper;
    class RenderViewObserverHelper;

    // RenderProcessObserver implementation.
    bool OnControlMessageReceived(const IPC::Message &message) override;

    void onAddScript(const UserScriptData &);
    void onRemoveScript(const UserScriptData &);
    void onClearScripts();

    void runScripts(UserScriptData::InjectionPoint, blink::WebLocalFrame *);

    typedef QSet<uint64_t> UserScriptSet;
    typedef QHash<const content::RenderView *, UserScriptSet> ViewUserScriptMap;
    ViewUserScriptMap m_viewUserScriptMap;
    QHash<uint64_t, UserScriptData> m_scripts;

    friend class RenderFrameObserverHelper;
};

#endif // USER_RESOURCE_CONTROLLER_H