/*
 * 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_T.c
  * @brief SDP "t=" header (Timing).
  */
 #include "tinysdp/headers/tsdp_header_T.h"
 
 #include "tsk_debug.h"
 #include "tsk_memory.h"
 #include "tsk_string.h"
 
 #include <string.h>
 
 /***********************************
 *	Ragel state machine.
 */
 %%{
 	machine tsdp_machine_parser_header_T;
 
 	# Includes
 	include tsdp_machine_utils "./ragel/tsdp_machine_utils.rl";
 	
 	action tag{
 		tag_start = p;
 	}
 
 	action parse_start_time{
 		TSK_PARSER_SET_INTEGER_EX(hdr_T->start, uint64_t, atoi64);
 	}
 
 	action parse_stop_time{
 		TSK_PARSER_SET_INTEGER_EX(hdr_T->stop, uint64_t, atoi64);
 	}
 
 	action parse_repeat_fields{
 		tsdp_header_R_t* header_R;
 		if((header_R = tsdp_header_R_parse(tag_start, (p - tag_start)))){
 			if(!hdr_T->repeat_fields){
 				hdr_T->repeat_fields = tsk_list_create();
 			}
 			tsk_list_push_back_data(hdr_T->repeat_fields, (void**)&header_R);
 		}
 	}
 	
 	start_time = DIGIT+ >tag %parse_start_time;
 	stop_time = DIGIT+ >tag %parse_stop_time;
 	repeat_fields = any+ >tag %parse_repeat_fields;
 
 	T = 't' SP* "=" SP*<: start_time :>SP stop_time (CRLF <:repeat_fields)?;
 	
 	# Entry point
 	main := T :>CRLF?;
 
 }%%
 
 
 tsdp_header_T_t* tsdp_header_T_create(uint64_t start, uint64_t stop)
 {
 	return tsk_object_new(TSDP_HEADER_T_VA_ARGS(start, stop));
 }
 
 tsdp_header_T_t* tsdp_header_T_create_null()
 {
 	return tsdp_header_T_create(0, 0);
 }
 
 int tsdp_header_T_tostring(const tsdp_header_t* header, tsk_buffer_t* output)
 {
 	if(header)
 	{
 		const tsdp_header_T_t *T = (const tsdp_header_T_t *)header;
 		const tsk_list_item_t *item;
 		
 		//"t=3034423619 3042462419\r\n"
 		//"r=7d 1h 0 25h\r\n"
 		// IMPORTANT: Do not append the last CRLF (because we only print the header value).
 		tsk_buffer_append_2(output, "%llu %llu", 
 			T->start,
 			T->stop
 			);
 
 		tsk_list_foreach(item, T->repeat_fields)
 		{
 			if(TSK_LIST_IS_FIRST(T->repeat_fields, item)){
 				tsk_buffer_append(output, "\r\n", 2);
 			}
 			tsk_buffer_append_2(output, "%c=", tsdp_header_get_nameex(TSDP_HEADER(item->data)));
 			TSDP_HEADER(item->data)->tostring(TSDP_HEADER(item->data), output);
 			//tsdp_header_tostring(TSDP_HEADER(item->data), output);
 
 			if(!TSK_LIST_IS_LAST(T->repeat_fields, item)){
 				tsk_buffer_append(output, "\r\n", 2);
 			}
 		}
 
 		return 0;
 	}
 
 	return -1;
 }
 
 tsdp_header_t* tsdp_header_T_clone(const tsdp_header_t* header)
 {
 	if(header){
 		const tsdp_header_T_t *T = (const tsdp_header_T_t *)header;
 		tsdp_header_T_t* clone;
 		const tsk_list_item_t *item;
 
 		if((clone = tsdp_header_T_create(T->start, T->stop))){
 
 			if(T->repeat_fields){
 				clone->repeat_fields = tsk_list_create();
 			}
 
 			tsk_list_foreach(item, T->repeat_fields){
 				const tsdp_header_t* curr = item->data;
 				tsdp_header_t* hdr_clone = curr->clone(curr);
 				tsk_list_push_back_data(clone->repeat_fields, (void**)&hdr_clone);
 			}
 		}
 		return TSDP_HEADER(clone);
 	}
 	return tsk_null;
 }
 
 tsdp_header_T_t *tsdp_header_T_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_T_t *hdr_T = tsdp_header_T_create_null();
 	
 	const char *tag_start = tsk_null;
 
 	TSK_RAGEL_DISABLE_WARNINGS_BEGIN()
 	%%write data;
 	(void)(tsdp_machine_parser_header_T_first_final);
 	(void)(tsdp_machine_parser_header_T_error);
 	(void)(tsdp_machine_parser_header_T_en_main);
 	%%write init;
 	%%write exec;
 	TSK_RAGEL_DISABLE_WARNINGS_END()
 	
 	if( cs < %%{ write first_final; }%% ){
 		TSK_DEBUG_ERROR("Failed to parse \"t=\" header.");
 		TSK_OBJECT_SAFE_FREE(hdr_T);
 	}
 	
 	return hdr_T;
 }
 
 
 
 
 
 
 
 //========================================================
 //	T header object definition
 //
 
 static tsk_object_t* tsdp_header_T_ctor(tsk_object_t *self, va_list * app)
 {
 	tsdp_header_T_t *T = self;
 	if(T){
 		TSDP_HEADER(T)->type = tsdp_htype_T;
 		TSDP_HEADER(T)->tostring = tsdp_header_T_tostring;
 		TSDP_HEADER(T)->clone = tsdp_header_T_clone;
 		TSDP_HEADER(T)->rank = TSDP_HTYPE_T_RANK;
 	}
 	else{
 		TSK_DEBUG_ERROR("Failed to create new U header.");
 	}
 	return self;
 }
 
 static tsk_object_t* tsdp_header_T_dtor(tsk_object_t *self)
 {
 	tsdp_header_T_t *T = self;
 	if(T){
 		TSK_OBJECT_SAFE_FREE(T->repeat_fields);
 	}
 	else{
 		TSK_DEBUG_ERROR("Null U header.");
 	}
 
 	return self;
 }
 static int tsdp_header_T_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_T_def_s = 
 {
 	sizeof(tsdp_header_T_t),
 	tsdp_header_T_ctor,
 	tsdp_header_T_dtor,
 	tsdp_header_T_cmp
 };
 
 const tsk_object_def_t *tsdp_header_T_def_t = &tsdp_header_T_def_s;