#pragma once

#ifndef TFARMCONTROLLER_H

#define TFARMCONTROLLER_H

#include <vector></vector>

using std::vector;

#include "tfarmtask.h"

//#include "texception.h"

#include "tconvert.h"

//#include "tfilepath.h"

class TFilePath;

#ifdef TFARMAPI

#undef TFARMAPI

#endif

#ifdef _WIN32

#ifdef TFARM_EXPORTS

#define TFARMAPI __declspec(dllexport)

#else

#define TFARMAPI __declspec(dllimport)

#endif

#else

#define TFARMAPI

#endif

//------------------------------------------------------------------------------

enum ServerState { Ready, Busy, NotResponding, Down, Offline, ServerUnknown };

class ServerIdentity {

public:

  ServerIdentity(const QString &id, const QString &name)

      : m_id(id), m_name(name) {}

  QString m_id;

  QString m_name;

};

class ServerInfo {

public:

  QString m_name;

  QString m_ipAddress;

  QString m_portNumber;

  ServerState m_state;

  QString m_platform;

  int m_cpuCount;

  unsigned int m_totPhysMem;

  unsigned int m_totVirtMem;

  // the following fields can be used just if the server state is not Down

  unsigned int m_availPhysMem;

  unsigned int m_availVirtMem;

  QString m_currentTaskId;

};

//------------------------------------------------------------------------------

class TaskShortInfo {

public:

  TaskShortInfo(const QString &id, const QString &name, TaskState status)

      : m_id(id), m_name(name), m_status(status) {}

  QString m_id;

  QString m_name;

  TaskState m_status;

};

//------------------------------------------------------------------------------

class TFARMAPI TFarmController {

public:

  virtual ~TFarmController() {}

  virtual QString addTask(const TFarmTask &task, bool suspended) = 0;

  virtual void removeTask(const QString &id)   = 0;

  virtual void suspendTask(const QString &id)  = 0;

  virtual void activateTask(const QString &id) = 0;

  virtual void restartTask(const QString &id)  = 0;

  virtual void getTasks(vector<qstring> &tasks) = 0;</qstring>

  virtual void getTasks(const QString &parentId, vector<qstring> &tasks) = 0;</qstring>

  virtual void getTasks(const QString &parentId,

                        vector<taskshortinfo> &tasks) = 0;</taskshortinfo>

  virtual void queryTaskInfo(const QString &id, TFarmTask &task) = 0;

  virtual void queryTaskShortInfo(const QString &id, QString &parentId,

                                  QString &name, TaskState &status) = 0;

  // used (by a server) to notify a server start

  virtual void attachServer(const QString &name, const QString &addr,

                            int port) = 0;

  // used (by a server) to notify a server stop

  virtual void detachServer(const QString &name, const QString &addr,

                            int port) = 0;

  // used by a server to notify a task submission error

  virtual void taskSubmissionError(const QString &taskId, int errCode) = 0;

  // used by a server to notify a task progress

  virtual void taskProgress(const QString &taskId, int step, int stepCount,

                            int frameNumber, FrameState state) = 0;

  // used by a server to notify a task completion

  virtual void taskCompleted(const QString &taskId, int exitCode) = 0;

  // fills the servers vector with the identities of the servers

  virtual void getServers(vector<serveridentity> &servers) = 0;</serveridentity>

  // returns the state of the server whose id has been specified

  virtual ServerState queryServerState2(const QString &id) = 0;

  // fills info with the infoes about the server whose id is specified

  virtual void queryServerInfo(const QString &id, ServerInfo &info) = 0;

  // activates the server whose id has been specified

  virtual void activateServer(const QString &id) = 0;

  // deactivates the server whose id has been specified

  // once deactivated, a server is not available for task rendering

  virtual void deactivateServer(const QString &id,

                                bool completeRunningTasks = true) = 0;

};

//------------------------------------------------------------------------------

class TFARMAPI ControllerData {

public:

  ControllerData(const QString &hostName = "", const QString &ipAddr = "",

                 int port = 0)

      : m_hostName(hostName), m_ipAddress(ipAddr), m_port(port) {}

  bool operator==(const ControllerData &rhs) {

    return m_hostName == rhs.m_hostName && m_ipAddress == rhs.m_ipAddress &&

           m_port == rhs.m_port;

  }

  QString m_hostName;

  QString m_ipAddress;

  int m_port;

};

//------------------------------------------------------------------------------

class TFARMAPI TFarmControllerFactory {

public:

  TFarmControllerFactory();

  int create(const ControllerData &data, TFarmController **controller);

  int create(const QString &hostname, int port, TFarmController **controller);

};

//------------------------------------------------------------------------------

void TFARMAPI loadControllerData(const TFilePath &fp, ControllerData &data);

#endif