/*
 * Copyright (C) 2017, 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_xml.h
  * @brief Useful functions to manipulate xml document.
  *
  * @author Mamadou Diop <diopmamadou(at)doubango[dot]org>
  *
 
  */
 #ifndef _TINYSAK_XML_H_
 #define _TINYSAK_XML_H_
 
 #include "tinysak_config.h"
 #include "tsk_list.h"
 
 #if HAVE_LIBXML2_H
 #include <libxml/tree.h>
 
 #define TSK_XML_NODE_IS_TEXTVALUE(node)							(node && node->type==XML_TEXT_NODE)
 #define TSK_XML_NODE_SAFE_GET_TEXTVALUE(node)					(const char*)(TSK_XML_NODE_IS_TEXTVALUE(node)?(node->content):0)
 #define TSK_XML_NODE_SKIP_COMMENTS(node)						while(node && (node->type==XML_COMMENT_NODE)) node = tsk_xml_find_node(node, 0, nft_next);
 		
 
 #define TSK_XML_NODE_SELECT_BY_NAME(qname)						nst_by_name, qname
 #define TSK_XML_NODE_SELECT_BY_ATT(qname, att_name, att_value)	nst_by_att, qname, att_name, att_value
 #define TSK_XML_NODE_SELECT_ATT_VALUE(qname, att_name)			nst_att_value, qname, att_name
 #define TSK_XML_NODE_SELECT_CONTENT()							nst_content
 #define TSK_XML_NODE_SELECT_END()								nst_end
 
 
 #define TSK_XML_NAMESPACE_CREATE()								tsk_object_new(tsk_xml_namespace_def_t)
 #define TSK_XML_NAMESPACE_FREE(self)							tsk_object_unref(self), self = 0
 
 #define TSK_XML_ELEMENT_CREATE(element)							tsk_object_new(tsk_xml_element_def_t)
 #define TSK_XML_ELEMENT_FREE(self)								tsk_object_unref(self), self = 0
 
 #define TSK_XML_ATTRIBUTE_CREATE(attribute)						tsk_object_new(tsk_xml_attribute_def_t)
 #define TSK_XML_ATTRIBUTE_FREE(self)							tsk_object_unref(self), self = 0
 
 
 #define TSK_XML_SERIALIZE(result, element, strValue)\
 	if(strValue) tsk_sprintf(&result, "<"##element##">%s</"##element##">", strValue); \
 	else tsk_strupdate(&result, "");
 
 /** C and XML Schema mapping */
 typedef enum tsk_xml_type_e
 {
 	xt_none,
 	xt_string,			/* xsd:string */
 	xt_byte,			/* xsd:byte */
 	xt_unsignedByte,	/* xsd:unsignedByte */
 	xt_short,			/* xsd:short */
 	xt_unsignedShort,	/* xsd:unsignedShort */
 	xt_int,				/* xsd:int */
 	xt_unsignedInt,		/* xsd:unsignedInt */
 	xt_long,			/* xsd:long */
 	xt_boolean,			/* xsd:boolean */
 	xt_float,			/* xsd:float */
 	xt_double			/* xsd:double */
 }
 tsk_xml_type_t;
 
 /** Node finding types */
 typedef enum tsk_xml_node_find_type_s
 {
 	nft_none,
 	nft_children,
 	nft_parent,
 	nft_next,
 	nft_prev
 }
 tsk_xml_node_find_type_t;
 
 /** Element selection types */
 typedef enum tsk_xml_node_select_type_s
 {
 	nst_by_name,
 	nst_by_att,
 	nst_att_value,
 	nst_content,
 	nst_end
 }
 tsk_xml_node_select_type_t;
 
 /** XML namespace */
 typedef struct tsk_xml_namespace_s
 {
 	TSK_DECLARE_OBJECT;
 
 	char* prefix;
 	char* value;
 }
 tsk_xml_namespace_t;
 
 /** XML attribute */
 typedef struct tsk_xml_attribute_s
 {
 	TSK_DECLARE_OBJECT;
 
 	char* name;
 	void* value;
 	tsk_xml_type_t type;
 }
 tsk_xml_attribute_t;
 
 /** XML element */
 typedef struct tsk_xml_element_s
 {
 	TSK_DECLARE_OBJECT;
 
 	char* name;
 	void* value;
 	tsk_list_t* elements;
 	tsk_list_t* attributes;
 	tsk_list_t* namespaces;
 	tsk_xml_type_t type;
 }
 tsk_xml_element_t;
 
 typedef tsk_list_t tsk_xml_elements_t;
 typedef tsk_list_t tsk_xml_attributes_t;
 typedef tsk_list_t tsk_xml_namespaces_t;
 
 #define tsk_xml_elements_init		tsk_list_init
 #define tsk_xml_attributes_init		tsk_list_init
 #define tsk_xml_namespaces_init		tsk_list_init
 
 #define tsk_xml_elements_add		tsk_list_add_data
 #define tsk_xml_attributes_add		tsk_list_add_data
 #define tsk_xml_namespaces_add		tsk_list_add_data
 
 #define tsk_xml_elements_free		tsk_list_free
 #define tsk_xml_attributes_free		tsk_list_free
 #define tsk_xml_namespaces_free		tsk_list_free
 
 //TINYSAK_API void tsk_xml_namespace_init(tsk_xml_namespace_t* _namespace);
 //TINYSAK_API void tsk_xml_namespace_free(tsk_xml_namespace_t** _namespace);
 
 //TINYSAK_API void tsk_xml_element_init(tsk_xml_element_t* element);
 TINYSAK_API void tsk_xml_element_init_set(tsk_xml_element_t** element, const char* name, const char* value, tsk_xml_type_t type);
 //TINYSAK_API void tsk_xml_element_free(void** element);
 
 //TINYSAK_API void tsk_xml_attribute_init(tsk_xml_attribute_t* attribute);
 //TINYSAK_API void tsk_xml_attribute_free(tsk_xml_attribute_t** attribute);
 
 TINYSAK_API xmlNsPtr tsk_xml_get_namespace(xmlDocPtr docPtr, xmlNodePtr node, const char *href);
 TINYSAK_API xmlNodePtr tsk_xml_find_node(const xmlNodePtr curr, const char* name, tsk_xml_node_find_type_t ftype);
 TINYSAK_API xmlNodePtr tsk_xml_select_node(const xmlNodePtr root, ...);
 
 TINYSAK_GEXTERN const tsk_object_def_t *tsk_xml_namespace_def_t;
 TINYSAK_GEXTERN const tsk_object_def_t *tsk_xml_attribute_def_t;
 TINYSAK_GEXTERN const tsk_object_def_t *tsk_xml_element_def_t;
 
 
 
 #endif /* HAVE_LIBXML2_H */
 
 #endif /* _TINYSAK_XML_H_ */