/*
 * Copyright (C) 2010-2015 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 tsdp_header_O.c
  * @brief SDP "o=" header (Origin).
  */
 #include "tinysdp/headers/tsdp_header_O.h"
 
 #include "tsk_debug.h"
 #include "tsk_memory.h"
 #include "tsk_string.h"
 
 #include <string.h>
 
 /***********************************
 *	Ragel state machine.
 */
 %%{
 	machine tsdp_machine_parser_header_O;
 
 	# Includes
 	include tsdp_machine_utils "./ragel/tsdp_machine_utils.rl";
 	
 	action tag{
 		tag_start = p;
 	}
 
 	action parse_username{
 		TSK_PARSER_SET_STRING(hdr_O->username);
 	}
 
 	action parse_sess_id{
 		TSK_PARSER_SET_UINT(hdr_O->sess_id);
 	}
 
 	action parse_sess_version{
 		TSK_PARSER_SET_UINT(hdr_O->sess_version);
 	}
 	
 	action parse_nettype{
 		TSK_PARSER_SET_STRING(hdr_O->nettype);
 	}
 
 	action parse_addrtype{
 		TSK_PARSER_SET_STRING(hdr_O->addrtype);
 	}
 
 	action parse_addr{
 		TSK_PARSER_SET_STRING(hdr_O->addr);
 	}
 
 	username = any*>tag %parse_username;
 	sess_id = DIGIT+>tag %parse_sess_id;
 	sess_version = DIGIT+>tag %parse_sess_version;
 	nettype = any*>tag %parse_nettype;
 	addrtype = any*>tag %parse_addrtype;
 	addr = any*>tag %parse_addr;
 	O = 'o' SP* "=" SP*<: username :>SP sess_id :>SP sess_version :>SP nettype :>SP addrtype :>SP addr;
 	
 	# Entry point
 	main := O :>CRLF?;
 
 }%%
 
 
 
 
 tsdp_header_O_t* tsdp_header_O_create(const char* username, uint32_t sess_id, uint32_t sess_version, const char* nettype, const char* addrtype, const char* addr)
 {
 	return tsk_object_new(TSDP_HEADER_O_VA_ARGS(username, sess_id, sess_version, nettype, addrtype, addr));
 }
 
 tsdp_header_O_t* tsdp_header_O_create_null()
 {
 	return tsdp_header_O_create(tsk_null, 0, 0, tsk_null, tsk_null, tsk_null);
 }
 
 tsdp_header_O_t* tsdp_header_O_create_default(const char* username, const char* nettype, const char* addrtype, const char* addr)
 {
 	return tsdp_header_O_create(username, TSDP_HEADER_O_SESS_ID_DEFAULT, TSDP_HEADER_O_SESS_VERSION_DEFAULT, nettype, addrtype, addr);
 }
 
 
 int tsdp_header_O_tostring(const tsdp_header_t* header, tsk_buffer_t* output)
 {
 	if(header){
 		const tsdp_header_O_t *O = (const tsdp_header_O_t *)header;
 		
 		// o=alice 2890844526 2890844526 IN IP4 host.atlanta.example.com
 		return tsk_buffer_append_2(output, "%s %u %u %s %s %s",
 			O->username,
 			O->sess_id,
 			O->sess_version,
 			O->nettype,
 			O->addrtype,
 			O->addr
 			);
 		
 		return 0;
 	}
 
 	return -1;
 }
 
 tsdp_header_t* tsdp_header_O_clone(const tsdp_header_t* header)
 {
 	if(header){
 		const tsdp_header_O_t *O = (const tsdp_header_O_t *)header;
 		return (tsdp_header_t*)tsdp_header_O_create(O->username, O->sess_id, O->sess_version, O->nettype, O->addrtype, O->addr);
 	}
 	return tsk_null;
 }
 
 tsdp_header_O_t *tsdp_header_O_parse(const char *data, tsk_size_t size)
 {
 	int cs = 0;
 	const char *p = data;
 	const char *pe = p + size;
 	const char *eof = pe;
 	tsdp_header_O_t *hdr_O = tsdp_header_O_create_null();
 	
 	const char *tag_start = tsk_null;
 
 	TSK_RAGEL_DISABLE_WARNINGS_BEGIN()
 	%%write data;
 	(void)(tsdp_machine_parser_header_O_first_final);
 	(void)(tsdp_machine_parser_header_O_error);
 	(void)(tsdp_machine_parser_header_O_en_main);
 	%%write init;
 	%%write exec;
 	TSK_RAGEL_DISABLE_WARNINGS_END()
 	
 	if( cs < %%{ write first_final; }%% ){
 		TSK_DEBUG_ERROR("Failed to parse \"o=\" header.");
 		TSK_OBJECT_SAFE_FREE(hdr_O);
 	}
 	
 	return hdr_O;
 }
 
 
 
 
 
 
 
 //========================================================
 //	O header object definition
 //
 
 static tsk_object_t* tsdp_header_O_ctor(tsk_object_t *self, va_list * app)
 {
 	tsdp_header_O_t *O = self;
 	if(O){
 		TSDP_HEADER(O)->type = tsdp_htype_O;
 		TSDP_HEADER(O)->tostring = tsdp_header_O_tostring;
 		TSDP_HEADER(O)->clone = tsdp_header_O_clone;
 		TSDP_HEADER(O)->rank = TSDP_HTYPE_O_RANK;
 		
 		O->username = tsk_strdup(va_arg(*app, const char*));
 		O->sess_id = va_arg(*app, uint32_t);
 		O->sess_version = va_arg(*app, uint32_t);
 		O->nettype = tsk_strdup(va_arg(*app, const char*));
 		O->addrtype = tsk_strdup(va_arg(*app, const char*));
 		O->addr = tsk_strdup(va_arg(*app, const char*));
 	}
 	else{
 		TSK_DEBUG_ERROR("Failed to create new O header.");
 	}
 	return self;
 }
 
 static tsk_object_t* tsdp_header_O_dtor(tsk_object_t *self)
 {
 	tsdp_header_O_t *O = self;
 	if(O){
 		TSK_FREE(O->username);
 		TSK_FREE(O->nettype);
 		TSK_FREE(O->addrtype);
 		TSK_FREE(O->addr);
 	}
 	else{
 		TSK_DEBUG_ERROR("Null O header.");
 	}
 
 	return self;
 }
 static int tsdp_header_O_cmp(const tsk_object_t *obj1, const tsk_object_t *obj2)
 {
 	if(obj1 && obj2){
 		return tsdp_header_rank_cmp(obj1, obj2);
 	}
 	else{
 		return -1;
 	}
 }
 
 static const tsk_object_def_t tsdp_header_O_def_s = 
 {
 	sizeof(tsdp_header_O_t),
 	tsdp_header_O_ctor,
 	tsdp_header_O_dtor,
 	tsdp_header_O_cmp
 };
 
 const tsk_object_def_t *tsdp_header_O_def_t = &tsdp_header_O_def_s;