/*
 * Copyright (C) 2009-2015 Mamadou DIOP.
 *	
 * This file is part of Open Source Doubango Framework.
 *
 * DOUBANGO 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 3 of the License, or
 * (at your option) any later version.
 *	
 * DOUBANGO 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 DOUBANGO.
 *
 */
 
 /**@file tmsrp_header_Use_Path.c
  * @brief MSRP "Use-Path" header.
  */
 #include "tinymsrp/headers/tmsrp_header_Use-Path.h"
 
 #include "tsk_debug.h"
 #include "tsk_memory.h"
 #include "tsk_string.h"
 
 #include <string.h>
 
 /***********************************
 *	Ragel state machine.
 */
 %%{
 	machine tmsrp_machine_parser_header_Use_Path;
 
 	# Includes
 	include tmsrp_machine_utils "./ragel/tmsrp_machine_utils.rl";
 	
 	action tag{
 		tag_start = p;
 	}
 
 	action parse_uri{
 		int len = (int)(p  - tag_start);
 		tmsrp_uri_t* uri;
 		if((uri = tmsrp_uri_parse(tag_start, (tsk_size_t)len))){
 			if(!header->uri){
 				header->uri = uri;
 			}
 			else{
 				if(!header->otherURIs){
 					header->otherURIs = tsk_list_create();
 				}
 				tsk_list_push_back_data(header->otherURIs, ((void**) &uri));
 			}
 		}
 	}
 		
 	MSRP_URI = (any -- SP)* >tag %parse_uri;
 
 	#//"Use-Path:" SP MSRP-URI  *( SP MSRP-URI ) 
 	Use_Path = "Use-Path:"i SP MSRP_URI (SP <:MSRP_URI)*;
 	
 	# Entry point
 	main := Use_Path :>CRLF?;
 
 }%%
 
 
 
 tmsrp_header_Use_Path_t* tmsrp_header_Use_Path_create(const tmsrp_uri_t* uri)
 {
 	return tsk_object_new(TMSRP_HEADER_USE_PATH_VA_ARGS(uri));
 }
 
 tmsrp_header_Use_Path_t* tmsrp_header_Use_Path_create_null()
 {
 	return tmsrp_header_Use_Path_create(tsk_null);
 }
 
 int tmsrp_header_Use_Path_tostring(const tmsrp_header_t* header, tsk_buffer_t* output)
 {
 	if(header){
 		const tmsrp_header_Use_Path_t *Use_Path = (const tmsrp_header_Use_Path_t *)header;
 		const tsk_list_item_t *item;
 
 		if(Use_Path->uri){
 			tmsrp_uri_serialize(Use_Path->uri, output);
 		}
 		tsk_list_foreach(item, Use_Path->otherURIs){
 			tsk_buffer_append(output, " ", 1);
 			tmsrp_uri_serialize(TMSRP_URI(item->data), output);
 		}
 	}
 
 	return -1;
 }
 
 tmsrp_header_Use_Path_t *tmsrp_header_Use_Path_parse(const char *data, tsk_size_t size)
 {
 	int cs = 0;
 	const char *p = data;
 	const char *pe = p + size;
 	const char *eof = pe;
 	tmsrp_header_Use_Path_t *header = tmsrp_header_Use_Path_create_null();
 
 	const char *tag_start = tsk_null;
 
 	TSK_RAGEL_DISABLE_WARNINGS_BEGIN()
 	%%write data;
 	(void)(eof);
 	(void)(tmsrp_machine_parser_header_Use_Path_first_final);
 	(void)(tmsrp_machine_parser_header_Use_Path_error);
 	(void)(tmsrp_machine_parser_header_Use_Path_en_main);
 	%%write init;
 	%%write exec;
 	TSK_RAGEL_DISABLE_WARNINGS_END()
 	
 	if( cs < %%{ write first_final; }%% ){
 		TSK_DEBUG_ERROR("Failed to parse 'Use-Path' header.");
 		TSK_OBJECT_SAFE_FREE(header);
 	}
 	
 	return header;
 }
 
 
 
 
 
 
 
 //========================================================
 //	Use_Path header object definition
 //
 
 static tsk_object_t* tmsrp_header_Use_Path_ctor(tsk_object_t *self, va_list * app)
 {
 	tmsrp_header_Use_Path_t *Use_Path = self;
 	if(Use_Path){
 		const tmsrp_uri_t* uri = va_arg(*app, const tmsrp_uri_t*);
 
 		TMSRP_HEADER(Use_Path)->type = tmsrp_htype_Use_Path;
 		TMSRP_HEADER(Use_Path)->tostring = tmsrp_header_Use_Path_tostring;
 		
 		if(uri){
 			Use_Path->uri = tsk_object_ref((void*)uri);
 		}
 	}
 	else{
 		TSK_DEBUG_ERROR("Failed to create new Use-Path header.");
 	}
 	return self;
 }
 
 static tsk_object_t* tmsrp_header_Use_Path_dtor(tsk_object_t *self)
 {
 	tmsrp_header_Use_Path_t *Use_Path = self;
 	if(Use_Path){
 		TSK_OBJECT_SAFE_FREE(Use_Path->uri);
 		TSK_OBJECT_SAFE_FREE(Use_Path->otherURIs);
 	}
 	else{
 		TSK_DEBUG_ERROR("Null Use-Path header.");
 	}
 
 	return self;
 }
 
 static const tsk_object_def_t tmsrp_header_Use_Path_def_s = 
 {
 	sizeof(tmsrp_header_Use_Path_t),
 	tmsrp_header_Use_Path_ctor,
 	tmsrp_header_Use_Path_dtor,
 	tsk_null
 };
 
 const tsk_object_def_t *tmsrp_header_Use_Path_def_t = &tmsrp_header_Use_Path_def_s;