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// The abstraction of Session class.

#ifndef MOZC_SESSION_SESSION_INTERFACE_H_
#define MOZC_SESSION_SESSION_INTERFACE_H_

#include <cstdint>

#include "base/port.h"
#include "protocol/config.pb.h"

namespace mozc {

namespace commands {
class ApplicationInfo;
class Capability;
class Command;
class Request;
}  // namespace commands

namespace composer {
class Table;
}  // namespace composer

namespace session {
class SessionInterface {
 public:
  virtual ~SessionInterface() {}

  virtual bool SendKey(commands::Command *command) = 0;

  // Check if the input key event will be consumed by the session.
  virtual bool TestSendKey(commands::Command *command) = 0;

  // Perform the SEND_COMMAND command defined commands.proto.
  virtual bool SendCommand(commands::Command *command) = 0;

  virtual void SetConfig(config::Config *config) = 0;

  // Set Request. Currently, this is especial for session::Session.
  virtual void SetRequest(const commands::Request *request) {}

  // Set composition Table. Currently, this is especial for session::Session.
  virtual void SetTable(const composer::Table *table) {}

  // Set client capability for this session.  Used by unittest.
  virtual void set_client_capability(
      const commands::Capability &capability) = 0;

  // Set application information for this session.
  virtual void set_application_info(
      const commands::ApplicationInfo &application_info) = 0;

  // Get application information
  virtual const commands::ApplicationInfo &application_info() const = 0;

  // Return the time when this instance was created.
  virtual uint64_t create_session_time() const = 0;

  // return 0 (default value) if no command is executed in this session.
  virtual uint64_t last_command_time() const = 0;
};

}  // namespace session
}  // namespace mozc

#endif  // MOZC_SESSION_SESSION_INTERFACE_H_
