#ifndef EXECUTOR_H
#define EXECUTOR_H

#include <stdbool.h>
#include <pthread.h>
#include "fill_handler.h"
#include "config.h"
#include "slot.h"
#include "ws_client.h"

#define MAX_IN_FLIGHT 8
#define MAX_TRACKED_TRIANGLES 2048

/* Shared in-flight state across all executor threads (protected by lock). */
typedef struct {
    pthread_mutex_t lock;
    char  triangles[MAX_IN_FLIGHT][128];
    uint64_t pairs[MAX_IN_FLIGHT];
    char  primary_quotes[MAX_IN_FLIGHT][16];
    int   count;
    char  last_triangles[MAX_TRACKED_TRIANGLES][128];
    int64_t last_book_ts[MAX_TRACKED_TRIANGLES];
    int   last_count;
} executor_shared_t;

/* Per-thread data for the executor. */
typedef struct executor_thread_s executor_thread_t;

/* Create an executor thread (one per concurrent slot). */
executor_thread_t *executor_thread_create(const config_t *cfg,
                                           fill_channel_t *fill_ch,
                                           ws_client_t *ws,
                                           executor_shared_t *shared,
                                           executor_slot_t *slot);

/* Execute a single triangle signal (blocking, called from executor thread). */
void executor_execute_triangle(executor_thread_t *et,
                                signal_entry_t *sig);

/* Report status text. */
void executor_write_report(const char *fmt, ...);

/* Warm up the authenticated REST connection (keepalive). Returns true on success. */
bool executor_keepalive(executor_thread_t *et);

/* Destroy and free. */
void executor_thread_destroy(executor_thread_t *et);

#endif