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#ifndef MOZC_RENDERER_RENDERER_CLIENT_H_
#define MOZC_RENDERER_RENDERER_CLIENT_H_

#include <memory>
#include <string>

#include "base/port.h"
#include "renderer/renderer_interface.h"

namespace mozc {

class IPCClientFactoryInterface;
class IPCClientInterface;

namespace renderer {

class RendererLauncherInterface {
 public:
  enum RendererErrorType {
    RENDERER_VERSION_MISMATCH,
    RENDERER_FATAL
  };

  // implement StartRenderer
  virtual void StartRenderer(
      const string &name,
      const string &renderer_path,
      bool disable_renderer_path_check,
      IPCClientFactoryInterface *client_factory_intarface) = 0;

  // force to terminate the renderer
  // do not use this method unless protocol version mismatch
  virtual bool ForceTerminateRenderer(const string &name) = 0;

  // called when fatal error occured
  virtual void OnFatal(RendererErrorType type) = 0;

  // return true if the renderer is running
  virtual bool IsAvailable() const = 0;

  // return true if client can make a IPC connection.
  virtual bool CanConnect() const = 0;

  // |command| is sent to the server just after
  // renderer is launched.
  virtual void SetPendingCommand(
      const commands::RendererCommand &command) = 0;

  // Sets the flag of error dialog suppression.
  virtual void set_suppress_error_dialog(bool suppress) = 0;

  RendererLauncherInterface() {}
  virtual ~RendererLauncherInterface() {}
};

// IPC-based client for out-proc renderer.
class RendererClient : public RendererInterface {
 public:
  RendererClient();
  virtual ~RendererClient();

  // set IPC factory
  void SetIPCClientFactory(IPCClientFactoryInterface
                           *ipc_client_factory_interface);

  // set StartRendererInterface
  void SetRendererLauncherInterface(RendererLauncherInterface
                                    *renderer_launcher_interface);

  // send_command_interface is not used in the client.
  // Currently, mouse handling must be implemented in each
  // platform separately.
  // TODO(taku): move win32 code into RendererClient
  void SetSendCommandInterface(
      client::SendCommandInterface *send_command_interface) {}

  // activate renderer server
  bool Activate();

  // return true if the renderer is available
  bool IsAvailable() const;

  // shutdown the renderer if it is running
  // return true if the function finishes without error.
  // If force is true ForceTerminateRenderer is used to shutdown the renderer.
  // Otherwise command::RendererCommand::SHUDDOWN is used.
  bool Shutdown(bool force);

  bool ExecCommand(const commands::RendererCommand &command);

  // Don't check the renderer server path.
  // DO NOT call it except for testing
  void DisableRendererServerCheck();

  // Sets the flag of error dialog suppression.
  void set_suppress_error_dialog(bool suppress);

 private:
  IPCClientInterface *CreateIPCClient() const;

  bool is_window_visible_;
  bool disable_renderer_path_check_;
  int  version_mismatch_nums_;
  string name_;
  string renderer_path_;

  IPCClientFactoryInterface *ipc_client_factory_interface_;

  std::unique_ptr<RendererLauncherInterface> renderer_launcher_;
  RendererLauncherInterface *renderer_launcher_interface_;
};

}  // namespace renderer
}  // namespace mozc

#endif  // MOZC_RENDERER_RENDERER_CLIENT_H_