#if HAVE_CRT
 #define _CRTDBG_MAP_ALLOC 
 #include <stdlib.h> 
 #include <crtdbg.h>
 #endif //HAVE_CRT
 /*

 * Copyright (C) 2020, University of the Basque Country (UPV/EHU)

 * Contact for licensing options: <licensing-mcpttclient(at)mcopenplatform(dot)com>
 *
 * The original file was part of Open Source Doubango Framework
 * Copyright (C) 2010-2011 Mamadou Diop.
 * Copyright (C) 2012 Doubango Telecom <http://doubango.org>
 *
 * 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 tsk_params.c
  * @brief SIP/MSRP/XCAP Parameters parser.
  *
  * @author Mamadou Diop <diopmamadou(at)doubango[dot]org>
  *
 
  */
 #include "tsk_params.h"
 #include "tsk_memory.h"
 #include "tsk_string.h"
 #include "tsk_common.h"
 #include "tsk_debug.h"
 
 #include <string.h>
 
 /**@defgroup tsk_params_group SIP/MSRP/XCAP Parameters parser.
 */
 
 /* Predicate function used to find a parameter by name (case-insensitive).
 */
 static int pred_find_param_by_name(const tsk_list_item_t *item, const void *name)
 {
 	if(item && item->data){
 		tsk_param_t *param = (tsk_param_t*)item->data;
 		return tsk_stricmp(param->name, (const char*)name);
 	}
 	return -1;
 }
 
 /**@ingroup tsk_params_group
 */
 tsk_param_t* tsk_param_create(const char* name, const char* value)
 {
 	return (tsk_param_t*)tsk_object_new(TSK_PARAM_VA_ARGS(name, value));
 }
 
 /**@ingroup tsk_params_group
 */
 tsk_param_t* tsk_param_create_null()
 {
 	return tsk_param_create(tsk_null, tsk_null);
 }
 
 /**@ingroup tsk_params_group
 * Converts a key-value-pair string (kvp) to @ref tsk_param_t object.
 * @param line The kvp (e.g. 'branch=z9hG4bK652hsge') string to parse.
 * @param size The size (length) of the kvp string.
 * @retval @ref tsk_param_t object.
 */
 tsk_param_t *tsk_params_parse_param(const char* line, tsk_size_t size)
 {
 	if(line && size){
 		const char* start = line;
 		const char* end = (line + size);

 		const char* equal = memmem(line, size, "=", 1);

 		tsk_param_t *param = tsk_param_create_null();
 
 		if (param && equal && equal<end) {
 			#if HAVE_CRT //Debug memory
 			if ((param->name = (char*)calloc((tsk_size_t)((equal - start) + 1), sizeof(const char)))) {
 		
 	#else
 			if ((param->name = (char*)tsk_calloc((tsk_size_t)((equal - start) + 1), sizeof(const char)))) {
 		
 	#endif //HAVE_CRT
 				memcpy(param->name, start, (equal - start));
 			}
 			#if HAVE_CRT //Debug memory
 			if ((param->value = (char*)calloc((tsk_size_t)((end - equal - 1) + 1), sizeof(const char)))) {
 		
 	#else
 			if ((param->value = (char*)tsk_calloc((tsk_size_t)((end - equal - 1) + 1), sizeof(const char)))) {
 		
 	#endif //HAVE_CRT
 				memcpy(param->value, equal + 1, (end - equal - 1));
 			}
 		}
 		else if (param) {
 			#if HAVE_CRT //Debug memory
 			if ((param->name = (char*)calloc((tsk_size_t)((end - start) + 1), sizeof(const char)))) {
 		
 	#else
 			if ((param->name = (char*)tsk_calloc((tsk_size_t)((end - start) + 1), sizeof(const char)))) {
 		
 	#endif //HAVE_CRT
 				memcpy(param->name, start, (end - start));
 			}
 		}
 
 		return param;
 	}
 	return tsk_null;
 }
 /**@ingroup tsk_params_group
 * Checks if the supplied list of parameters contains a parameter named @a name (case-insensitive).
 * @param self The list of parameters into which to search.
 * @param name The name of the parameter to search.
 * @retval @ref tsk_true if the parameter exist and @ref tsk_false otherwise.
 */
 tsk_bool_t tsk_params_have_param(const tsk_params_L_t *self, const char* name)
 {
 	if(self){
 		if(tsk_list_find_item_by_pred(self, pred_find_param_by_name, name)){
 			return tsk_true;
 		}
 	}
 	else{
 		TSK_DEBUG_ERROR("Invalid parameter");
 	}
 	return tsk_false;
 }
 
 /**@ingroup tsk_params_group
 * Adds a parameter to the list of parameters. If the parameter already exist(case-insensitive), then it's value will be updated.
 * @param self The destination list.
 * @param name The name of the parameter to add.
 * @param value The value of the parameter to add.
 * @retval Zero if succeed and -1 otherwise.
 */
 int tsk_params_add_param(tsk_params_L_t **self, const char* name, const char* value)
 {
 	tsk_param_t *param;
 
 	if(!self || !name) {
 		TSK_DEBUG_ERROR("Invalid parameter");
 		return -1;
 	}
 
 	if(!*self){
 		*self = tsk_list_create();
 	}
 
 	if((param = (tsk_param_t*)tsk_params_get_param_by_name(*self, name))){
 		tsk_strupdate(&param->value, value); /* Already exist ==> update the value. */
 	}
 	else{
 		param = tsk_param_create(name, value);
 		tsk_list_push_back_data(*self, (void**)&param);
 	}
 
 	return 0;
 }
 
 int tsk_params_add_param_2(tsk_params_L_t **self, const tsk_param_t* param)
 {
 	if(!self || !param || !param){
 		TSK_DEBUG_ERROR("Invalid parameter");
 		return -1;
 	}
 
 	return tsk_params_add_param(self, param->name, param->value);
 }
 
 int tsk_params_add_param_3(tsk_params_L_t **self, const char* name, int64_t value)
 {
 	tsk_istr_t value_str;
 	tsk_itoa(value, &value_str);
 	return tsk_params_add_param(self, name, value_str);
 }
 
 /**@ingroup tsk_params_group
 * Removes a parameter from the list of parameters.
 * @param self The list from which to remove the parameter.
 * @param name The name(case-insensitive) of the parameter to remove.
 * @retval Zero if succeed and -1 otherwise.
 */
 int tsk_params_remove_param(tsk_params_L_t *self, const char* name)
 {
 	if(self){
 		tsk_list_remove_item_by_pred(self, pred_find_param_by_name, name);
 		return 0;
 	}
 	else{
 		TSK_DEBUG_ERROR("Invalid parameter");
 		return -1;
 	}
 }
 
 /**@ingroup tsk_params_group
 * Gets a parameter from the list of parameters by name.
 * @param self The source list.
 * @param name The name(case-insensitive) of the parameter to retrieve.
 * @retval @ref tsk_param_t if succeed and @ref tsk_null otherwise.
 */
 const tsk_param_t *tsk_params_get_param_by_name(const tsk_params_L_t *self, const char* name)
 {
 	if(self){
 		const tsk_list_item_t *item_const = tsk_list_find_item_by_pred(self, pred_find_param_by_name, name);
 		if(item_const){
 			return (const tsk_param_t*)item_const->data;
 		}
 	}
 	else{
 		TSK_DEBUG_ERROR("Invalid parameter");
 	}
 	return tsk_null;
 }
 
 /**@ingroup tsk_params_group
 * Gets the value of a parameter.
 * @param self The source list.
 * @param name The name(case-insensitive) of the parameter to retrieve.
 * @retval The value of the parameter if succeed and NULL otherwise.
 */
 const char *tsk_params_get_param_value(const tsk_params_L_t *self, const char* name)
 {
 	if(self && name){
 		const tsk_list_item_t *item_const = tsk_list_find_item_by_pred(self, pred_find_param_by_name, name);
 		if(item_const && item_const->data){
 			return ((const tsk_param_t *)item_const->data)->value;
 		}
 	}
 	else{
 		TSK_DEBUG_ERROR("Invalid parameter");
 	}
 	return tsk_null;
 }
 
 /**@ingroup tsk_params_group
 * Gets the value of a parameter.
 * @param self The source list.
 * @param name The name(case-insensitive) of the parameter to retrieve.
 * @retval The value of the parameter if succeed and -1 otherwise.
 */
 int tsk_params_get_param_value_as_int(const tsk_params_L_t *self, const char* name)
 {
 	const char *value = tsk_params_get_param_value(self, name);
 	return value ? atoi(value) : -1;
 }
 
 /**@ingroup tsk_params_group
 * Serializes a @ref tsk_param_t object.
 * @param param The parameter to serialize.
 * @param output The output buffer.
 * @retval Zero if succeed and -1 otherwise.
 */
 int tsk_params_param_tostring(const tsk_param_t *param, tsk_buffer_t* output)
 {
 	if(param){
 		return tsk_buffer_append_2(output, param->value?"%s=%s":"%s", param->name, param->value);
 	}
 	return -1;
 }
 
 /**@ingroup tsk_params_group
 * Serializes a @ref tsk_params_L_t object.
 * @param self The list of parameters to serialize.
 * @param separator The character to use as separator between params.
 * @param output The output buffer.
 * @retval Zero if succeed and non-zero error code otherwise.
 */
 int tsk_params_tostring(const tsk_params_L_t *self, const char separator, tsk_buffer_t* output)
 {
 	int ret = -1;
 
 	if(self){
 		tsk_list_item_t *item;
 		ret = 0; // for empty lists
 		tsk_list_foreach(item, self){
 			tsk_param_t* param = (tsk_param_t*)item->data;
 			//tsk_params_param_tostring(param, output);
 			if(TSK_LIST_IS_FIRST(self, item)){
 				if((ret = tsk_buffer_append_2(output, param->value?"%s=%s":"%s", param->name, param->value))){
 					goto bail;
 				}
 			}
 			else{
 				if((ret = tsk_buffer_append_2(output, param->value?"%c%s=%s":"%c%s", separator, param->name, param->value))){
 					goto bail;
 				}
 			}
 		}
 	}
 
 bail:
 	return ret;
 }
 
 /**@ingroup tsk_params_group
 */
 tsk_params_L_t* tsk_params_fromstring(const char* string, const char* separator, tsk_bool_t trim)
 {
 	tsk_params_L_t* params = tsk_null;
 	tsk_param_t* param;
 
 	int i = 0, index;
 	tsk_size_t size = tsk_strlen(string);
 
 #define PUSH_PARAM() \
 	if(!params){ \
 		params = tsk_list_create(); \
 	} \
 	if(trim){ \
 		if(param->name){ \
 			tsk_strtrim(&param->name); \
 		} \
 		if(param->value){ \
 			tsk_strtrim(&param->value); \
 		} \
 	} \
 	tsk_list_push_back_data(params, (void**)&param);
 
 	while((index = tsk_strindexOf((string + i), (size - i), separator)) != -1){
 		if((param = tsk_params_parse_param((string + i), index))){
 			PUSH_PARAM();
 		}
 		i += (index + 1);
 	}
 
 	// last one
 	if(i<(int)size){
 		if((param = tsk_params_parse_param((string + i), (size - i)))){
 			PUSH_PARAM();
 		}
 	}
 	
 	return params;
 }
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 //=================================================================================================
 //	param object definition
 //
 static tsk_object_t* tsk_param_ctor(tsk_object_t* self, va_list * app)
 {
 	tsk_param_t *param = (tsk_param_t*)self;
 	if(param){
 		const char* name = va_arg(*app, const char *);
 		const char* value = va_arg(*app, const char *);
 
 		if(!tsk_strnullORempty(name)) {
 			param->name = tsk_strdup(name);
 			if(!tsk_strnullORempty(value)) {
 				param->value = tsk_strdup(value);
 			}
 		}
 	}
 
 	return self;
 }
 
 static tsk_object_t* tsk_param_dtor(tsk_object_t* self)
 { 
 	tsk_param_t *param = (tsk_param_t*)self;
 	if(param){
 		TSK_FREE(param->name);
 		TSK_FREE(param->value);
 	}
 
 	return self;
 }
 
 static const tsk_object_def_t tsk_param_def_s = 
 {
 	sizeof(tsk_param_t),
 	tsk_param_ctor, 
 	tsk_param_dtor,
 	tsk_null, 
 };
 const tsk_object_def_t *tsk_param_def_t = &tsk_param_def_s;