/**
 * @file xcecd_dbus_manager.h
 * @brief This file contains the declaration of the D-Bus manager functions.
 *        It uses to manage worker and its child process with resource limits.
 */
#ifndef _XCECD_DBUS_MANAGER_H_
#define _XCECD_DBUS_MANAGER_H_

#include "sqlite3.h"
#include "xcecd_cgroups.h"
#include "xcecd_worker_utils.h"
#include "xcecd_utils.h"
#include <stdbool.h>


/**
 * @brief Start worker with resource limits
 * 
 * @param limits resource limits (NULL if no limits)
 * @param job_id job id
 * @param extra_args extra command line arguments (NULL if none)
 * @return true if success, false if failed
 */
bool dbus_start_worker(const res_limits_t* limits, 
                       uint64_t job_id, char* extra_args);

/**
 * @brief Stop a worker service
 * 
 * @param unit_name worker service name (xcecd-worker-<job_id>.service)
 * @return true if success, false if failed
 */
bool dbus_stop_worker(const char* unit_name);

/**
 * @brief Get PID of a worker service
 * 
 * @param unit_name worker service name (xcecd-worker-<job_id>.service)
 * @return PID if success, -1 if failed
 */
pid_t dbus_get_worker_pid(const char* unit_name);

/**
 * @brief Check if a worker service is active
 * 
 * @param unit_name worker service name (xcecd-worker-<job_id>.service)
 * @return true if active, false if not active
 */
bool dbus_is_worker_active(const char* unit_name);

/**
 * @brief Update worker status
 * 
 * @param worker_list worker list
 * @param job job information
 * @param db database information
 * @return XCECD_OK if success, others in execd_error if failed
 */
int dbus_workers_update(xcecd_worker_t** worker_list, 
                        xcecd_job_t* job,
                        sqlite3* db);

/**
 * @brief Clean worker service
 * 
 * @param worker worker information
 * @param job job information
 * @return true if success, false if failed
 */
bool dbus_worker_clean(xcecd_worker_t* worker, 
                       xcecd_job_t* job);

/**
 * @brief Go through worker list and stop all workers
 * @param worker_list worker list
 * @param db database information
 * @return void
 */
void dbus_stop_all_workers(xcecd_worker_t** worker_list,
                           sqlite3* db);

#endif // _XCECD_DBUS_MANAGER_H_