/*

 * pep_mood.c           -- Pep mood events

 *

 * Copyright (C) 2009-2012 Myhailo Danylenko <isbear@ukrpost.net>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or (at

 * your option) any later version.

 *

 * This program is distributed in the hope that it will be useful, but

 * WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307

 * USA

 */

#include <glib.h>

#include <loudmouth/loudmouth.h>

#include <string.h>

#include <mcabber/utils.h>

#include <mcabber/xmpp.h>

#include <mcabber/xmpp_helper.h>

#include <mcabber/logprint.h>

#include <mcabber/hooks.h>

#include <mcabber/modules.h>

#include "pep.h"

#include "mood.h"

#include "config.h"

//

//  module description

//

void pep_mood_init   (void);

void pep_mood_uninit (void);

#define DESCRIPTION ( "PEP mood events handling" )

static const gchar *deps[] = { "pep", NULL };

static module_info_t info_mood_dev = {

	.branch      = "dev",

	.api         = 20,

	.version     = PROJECT_VERSION,

	.description = DESCRIPTION,

	.requires    = deps,

	.init        = pep_mood_init,

	.uninit      = pep_mood_uninit,

	.next        = NULL,

};

module_info_t info_pep_mood = {

	.branch      = "0.10.1",

	.api         = 1,

	.version     = PROJECT_VERSION,

	.description = DESCRIPTION,

	.requires    = deps,

	.init        = pep_mood_init,

	.uninit      = pep_mood_uninit,

	.next        = &info_mood_dev,

};

//

//  globals

//

static GQuark            mood_gerror_quark   = 0;

static guint             mood_hid_connect    = 0;

static guint             mood_hid_disconnect = 0;

static guint             mood_hid_moodout    = 0;

static LmMessageHandler *mood_reply_handler  = NULL;

static gboolean          publish_delayed     = FALSE;

static gchar            *delayed_mood        = NULL;

static gchar            *delayed_text        = NULL;

//

//  code

//

static LmHandlerResult mood_publish_reply_handler (LmMessageHandler *handler, LmConnection *connection, LmMessage *message, gpointer userdata)

{

	switch (lm_message_get_sub_type (message)) {

	case LM_MESSAGE_SUB_TYPE_RESULT:

		break;

	case LM_MESSAGE_SUB_TYPE_ERROR:

		{

			LmMessageNode *node   = lm_message_get_node (message);

			const gchar   *type;

			const gchar   *reason;

			node = lm_message_node_get_child (node, "error");

			type = lm_message_node_get_attribute (node, "type");

			if (node->children)

				reason = node->children->name;

			else

				reason = "undefined";

			scr_log_print (LPRINT_LOGNORM, "mood: Publish failed: %s - %s", type, reason);

		}

		break;

	default:

		return LM_HANDLER_RESULT_ALLOW_MORE_HANDLERS;

		break;

	}

	return LM_HANDLER_RESULT_REMOVE_MESSAGE;

}

void mood_publish (const gchar *mood, const gchar *text)

{

	if (!xmpp_is_online ()) {

		scr_log_print (LPRINT_DEBUG, "mood: Delaying publish until online.");

		g_free (delayed_mood);

		g_free (delayed_text);

		delayed_mood = g_strdup (mood);

		delayed_text = g_strdup (text);

		publish_delayed = TRUE;

		return;

	}

	LmMessage     *request = lm_message_new_with_sub_type (NULL, LM_MESSAGE_TYPE_IQ, LM_MESSAGE_SUB_TYPE_SET);

	LmMessageNode *node    = lm_message_get_node (request);

	lm_message_node_set_attribute (node, "from", lm_connection_get_jid (lconnection));

	node = lm_message_node_add_child (node, "pubsub", NULL);

	lm_message_node_set_attribute (node, "xmlns", NS_PUBSUB);

	node = lm_message_node_add_child (node, "publish", NULL);

	lm_message_node_set_attribute (node, "node", NS_MOOD);

	node = lm_message_node_add_child (node, "item", NULL);

	node = lm_message_node_add_child (node, "mood", NULL);

	lm_message_node_set_attribute (node, "xmlns", NS_MOOD);

	if (mood)

		lm_message_node_add_child (node, mood, NULL);

	if (text)

		lm_message_node_add_child (node, "text", text);

	{ // send

		GError *error = NULL;

		lm_connection_send_with_reply (lconnection, request, mood_reply_handler, &error);

		if (error) {

			scr_log_print (LPRINT_DEBUG, "mood: Publish sending error: %s.", error -> message);

			g_error_free (error);

		}

	}

	lm_message_unref (request);

}

gboolean mood_request ( const gchar *to, GError **err )

{

	LmMessage *request;

	LmMessageNode *node;

	if (!xmpp_is_online ()) {

		g_set_error ( err, mood_gerror_quark, MOOD_ERROR_NOTCONNECTED, "You are not connected" );

		return FALSE;

	}

	request = lm_message_new_with_sub_type (to, LM_MESSAGE_TYPE_IQ, LM_MESSAGE_SUB_TYPE_GET);

	node = lm_message_get_node (request);

	lm_message_node_set_attribute (node, "from", lm_connection_get_jid (lconnection));

	node = lm_message_node_add_child (node, "pubsub", NULL);

	lm_message_node_set_attribute (node, "xmlns", NS_PUBSUB);

	node = lm_message_node_add_child (node, "items", NULL);

	lm_message_node_set_attribute (node, "node", NS_MOOD);

	{ // send, result will be handled by pep

		GError *error = NULL;

		lm_connection_send (lconnection, request, &error);

		if (error) {

			g_propagate_error ( err, error );

			return FALSE;

		}

	}

	lm_message_unref (request);

	return TRUE;

}

static void mood_handler ( const gchar *from, const gchar *enode, LmMessageNode *n, const gchar *id, gpointer ignore )

{

	LmMessageNode *node;

	hk_arg_t args[] = {

		{ "mood", NULL },

		{ "text", NULL },

		{ "from", from },

		{ NULL,   NULL },

	};

	for ( node = n -> children; node; node = node -> next ) {

		const gchar *name = node -> name;

		if ( ! strcmp ( name, "text" ) )

			args[1].value = lm_message_node_get_value ( node );

		else

			args[0].value = name;

	}

	hk_run_handlers ( HOOK_MOOD_IN, args );

}

static guint mood_hch (const gchar *hid, hk_arg_t *args, gpointer userdata)

{

	if (publish_delayed) {

		char *tmp_mood = delayed_mood;

		char *tmp_text = delayed_text;

		scr_log_print (LPRINT_DEBUG, "mood: Publishing delayed data.");

		delayed_mood = delayed_text = NULL;

		publish_delayed = FALSE;

		mood_publish (tmp_mood, tmp_text);

		g_free (tmp_mood);

		g_free (tmp_text);

	}

	return HOOK_HANDLER_RESULT_ALLOW_MORE_HANDLERS;

}

static guint mood_hdh (const gchar *hid, hk_arg_t *args, gpointer userdata)

{

#ifdef HAVE_LM_CONNECTION_UNREGISTER_REPLY_HANDLER

	if (lconnection && mood_reply_handler)

		lm_connection_unregister_reply_handler (lconnection, mood_reply_handler);

#endif

	return HOOK_HANDLER_RESULT_ALLOW_MORE_HANDLERS;

}

static guint mood_hmoh ( const gchar *hid, hk_arg_t *args, gpointer userdata )

{

	const gchar *mood = NULL;

	const gchar *text = NULL;

	{

		hk_arg_t *arg;

		for ( arg = args; arg -> name; arg ++ ) {

			const gchar *value = arg -> value;

			if ( value ) {

				const gchar *name = arg -> name;

				if ( ! strcmp ( name, "mood" ) )

					mood = value;

				else if ( ! strcmp ( name, "text" ) )

					text = value;

			}

		}

	}

	mood_publish ( mood, text );

	return HOOK_HANDLER_RESULT_ALLOW_MORE_HANDLERS;

}

void pep_mood_init (void)

{

	mood_gerror_quark = g_quark_from_string ( "pep-mood-gerror-quark" );

	mood_reply_handler = lm_message_handler_new (mood_publish_reply_handler, NULL, NULL);

	pep_register_xmlns_handler (NS_MOOD, mood_handler, NULL, NULL);

	mood_hid_connect    = hk_add_handler ( mood_hch,  HOOK_POST_CONNECT, G_PRIORITY_DEFAULT, NULL );

	mood_hid_disconnect = hk_add_handler ( mood_hdh,  HOOK_PRE_DISCONNECT, G_PRIORITY_DEFAULT, NULL );

	mood_hid_moodout    = hk_add_handler ( mood_hmoh, HOOK_MOOD_OUT, G_PRIORITY_DEFAULT, NULL );

	xmpp_add_feature ( NS_MOOD        );

	xmpp_add_feature ( NS_MOOD_NOTIFY );

}

void pep_mood_uninit (void)

{

	xmpp_del_feature ( NS_MOOD        );

	xmpp_del_feature ( NS_MOOD_NOTIFY );

	hk_del_handler ( HOOK_POST_CONNECT,   mood_hid_connect );

	hk_del_handler ( HOOK_PRE_DISCONNECT, mood_hid_disconnect );

	hk_del_handler ( HOOK_MOOD_OUT,       mood_hid_moodout );

	pep_unregister_xmlns_handler (NS_MOOD);

#ifdef HAVE_LM_CONNECTION_UNREGISTER_REPLY_HANDLER

	if (lconnection && mood_reply_handler)

		lm_connection_unregister_reply_handler (lconnection, mood_reply_handler);

#endif

	lm_message_handler_invalidate (mood_reply_handler);

	lm_message_handler_unref (mood_reply_handler);

	g_free ( delayed_mood );

	g_free ( delayed_text );

}

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