#include "global.h"
#include "mqttd.h"
#include "rtlm.h"
#include "mqttd_calls.h"


int
cmdPUBLISH(void *srv, void *arg)
{
	struct mqtthdr *hdr;
	struct tagSession *sess = (struct tagSession*) arg;

	ioTRACE(2);

	if (!sess)
		return -1;

	hdr = (struct mqtthdr*) sess->sess_buf->msg_base;
	switch (hdr->mqtt_msg.qos) {
		case MQTT_QOS_ONCE:
			break;
		case MQTT_QOS_ACK:
			break;
		case MQTT_QOS_EXACTLY:
			break;
		default:
			ioDEBUG(1, "Error:: Unknown QoS %d - rejected publishing request", 
					hdr->mqtt_msg.qos);
			return 0;
	}

	return 0;
}

int
cmdPUBREL(void *srv, void *arg)
{
	struct mqtthdr *hdr;
	struct tagSession *sess = (struct tagSession*) arg;

	ioTRACE(2);

	if (!sess)
		return -1;

	hdr = (struct mqtthdr*) sess->sess_buf->msg_base;

	return 0;
}

int
cmdSUBSCRIBE(void *srv, void *arg)
{
	struct mqtthdr *hdr;
	struct tagSession *sess = (struct tagSession*) arg;

	ioTRACE(2);

	if (!sess)
		return -1;

	hdr = (struct mqtthdr*) sess->sess_buf->msg_base;

	return 0;
}

int
cmdUNSUBSCRIBE(void *srv, void *arg)
{
	struct mqtthdr *hdr;
	struct tagSession *sess = (struct tagSession*) arg;

	ioTRACE(2);

	if (!sess)
		return -1;

	hdr = (struct mqtthdr*) sess->sess_buf->msg_base;

	return 0;
}

int
cmdPINGREQ(void *srv, void *arg)
{
	struct mqtthdr *hdr;
	struct tagSession *sess = (struct tagSession*) arg;
	int siz = 0;

	ioTRACE(2);

	if (!sess)
		return -1;

	hdr = (struct mqtthdr*) sess->sess_buf->msg_base;
	siz = mqtt_msgPINGRESP(sess->sess_buf);
	if (siz == -1) {
		ioDEBUG(5, "Error:: in msgPINGRESP #%d - %s", mqtt_GetErrno(), mqtt_GetError());
		return 0;
	}
	if ((siz = send(sess->sess_sock, sess->sess_buf->msg_base, siz, 0)) == -1) {
		ioSYSERR(0);
		return 0;
	} else
		ioDEBUG(5, "Sended %d bytes.", siz);

	return 0;
}

int
cmdCONNECT(void *srv, void *arg)
{
	struct tagStore *store;
	struct tagSession *sess = (struct tagSession*) arg;
	register int i;

	ioTRACE(2);

	if (!sess)
		return -1;

	SESS_LOCK;
	TAILQ_REMOVE(&Sessions, sess, sess_node);
	SESS_UNLOCK;

	if (call.FiniSessPUB)
		call.FiniSessPUB(&cfg, pub, sess->sess_cid, sess->sess_user, "%");

	SESS_ELEM_LOCK(sess);
	for (i = 0; i < MQTT_QOS_RESERVED; i++)
		while ((store = SLIST_FIRST(&sess->sess_txque[i]))) {
			SLIST_REMOVE_HEAD(&sess->sess_txque[i], st_node);

			if (store->st_subscr.sub_topic.msg_base)
				free(store->st_subscr.sub_topic.msg_base);
			if (store->st_subscr.sub_value.msg_base)
				free(store->st_subscr.sub_value.msg_base);

			free(store);
		}
	SESS_ELEM_UNLOCK(sess);

	if (sess->sess_will.msg)
		free(sess->sess_will.msg);
	if (sess->sess_will.topic)
		free(sess->sess_will.topic);

	call.LOG(logg, "Session %s stopped from %s for user %s.\n", sess->sess_cid, 
			sess->sess_addr, sess->sess_user);
	return 0;
}

int
cmdDISCONNECT(void *srv, void *arg)
{
	struct tagSession *sess = (struct tagSession*) arg;

	ioTRACE(2);

	if (!sess)
		return -1;

	SESS_LOCK;
	TAILQ_REMOVE(&Sessions, sess, sess_node);
	SESS_UNLOCK;

	call.LOG(logg, "Session %s stopped from %s for user %s.\n", sess->sess_cid, 
			sess->sess_addr, sess->sess_user);
	return 0;
}