#pragma once

#ifdef __cplusplus
extern "C"
{
#endif

#include <stdint.h>

struct stellar;

/**********************************************
 * PLUGIN SPEC API *
 **********************************************/

//return plugin_env
typedef void *plugin_on_load_func(struct stellar *st);
typedef void plugin_on_unload_func(void *plugin_env);

/**********************************************
 * PLUGIN EVENT API *
 **********************************************/
struct packet;
typedef void plugin_on_packet_func(struct packet *pkt, void *plugin_env);

//return plugin_id
int stellar_plugin_register(struct stellar *st, plugin_on_packet_func on_packet_input, plugin_on_packet_func on_packet_output, void *plugin_env);

//return polling work result, 0: no work, 1: work
typedef int plugin_on_polling_func(void *plugin_env);
//return polling plugin_id
int stellar_polling_plugin_register(struct stellar *st,  plugin_on_polling_func on_polling, void *plugin_env);

/**********************************************
 * STELLAR DEV API *
 **********************************************/

void stellar_emit_datapath_telemetry(struct packet *pkt,  const char * module, const char *str);

int stellar_get_worker_thread_num(struct stellar *st);
uint16_t stellar_get_current_thread_index();
// only send user build packet, can't send packet which come from network
void stellar_send_build_packet(struct stellar *st, struct packet *pkt);

struct stellar;
struct stellar *stellar_new(const char *stellar_cfg_file, const char *plugin_cfg_file, const char *log_cfg_file);
void stellar_run(struct stellar *st);
void stellar_free(struct stellar *st);
void stellar_loopbreak(struct stellar *st);
void stellar_reload_log_level(struct stellar *st);
struct logger *stellar_get_logger(struct stellar *st);

#ifdef __cplusplus
}
#endif