#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>
#include <getopt.h>

#include "ipc_session.h"

typedef struct convert_s
{
    ipc_session_t *session_nng;
    ipc_session_t *session_mqtt;
} converter_var_t;

int on_nng_message(void *obj, ipc_msg_t *msg)
{
    converter_var_t *var = (converter_var_t *)obj;

    ipc_session_publish(var->session_mqtt, msg->topic,
        (unsigned char *) msg->payload, msg->payloadLen);
    return 0;
}

int on_mqtt_message(void *obj, ipc_msg_t *msg)
{
    converter_var_t *var = (converter_var_t *)obj;

    ipc_session_publish(var->session_nng, msg->topic,
        (unsigned char *) msg->payload, msg->payloadLen);
    return 0;
}

static int converter_init(converter_var_t *var)
{
    ipc_session_t *nng_session = ipc_session_new("converter_nng", (void *)var, IPC_NNG);
    ipc_session_subscribe(nng_session, "ipc/#");
    ipc_session_set_callbacks(nng_session, on_nng_message, NULL);

    if (ipc_session_start(nng_session) != 0)
    {
        fprintf(stderr, "init failed");
        return -1;
    }
    var->session_nng = nng_session;
    ipc_session_t *mqtt_session = ipc_session_new("converter_mqtt", (void *)var, IPC_MQTT);
    ipc_session_subscribe(mqtt_session, "ipc/#");
    ipc_session_set_callbacks(mqtt_session, on_mqtt_message, NULL);

    if (ipc_session_start(mqtt_session) != 0)
    {
        fprintf(stderr, "init failed");
        return -1;
    }
    var->session_mqtt = mqtt_session;
    return 0;
}

static void converter_loop(converter_var_t *var)
{
    while (1)
    {
        sleep(10);
    }
}

int main(int argc, char **argv)
{

    converter_var_t var = {0};

    memset(&var, 0, sizeof(var));

    converter_init(&var);
    converter_loop(&var);

    ipc_session_destroy_and_free(var.session_nng);
    ipc_session_destroy_and_free(var.session_mqtt);
    return 0;
}