/*
 * 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 tmsrp_message.h
  * @brief MSRP message.
  *
  * @author Mamadou Diop <diopmamadou(at)doubango.org>
  *
 
  */
 #ifndef TINYMSRP_MESSAGE_H
 #define TINYMSRP_MESSAGE_H
 
 #include "tinymsrp_config.h"
 
 #include "tinymsrp/headers/tmsrp_header.h"
 
 #include "tinymsrp/headers/tmsrp_header_Byte-Range.h"
 #include "tinymsrp/headers/tmsrp_header_Content-Type.h"
 #include "tinymsrp/headers/tmsrp_header_Failure-Report.h"
 #include "tinymsrp/headers/tmsrp_header_From-Path.h"
 #include "tinymsrp/headers/tmsrp_header_Message-ID.h"
 #include "tinymsrp/headers/tmsrp_header_Status.h"
 #include "tinymsrp/headers/tmsrp_header_Success-Report.h"
 #include "tinymsrp/headers/tmsrp_header_To-Path.h"
 
 TMSRP_BEGIN_DECLS
 
 #define TMSRP_MESSAGE_IS_REQUEST(self) ((self) ? (self)->type == tmsrp_request : tsk_false)
 #define TMSRP_MESSAGE_IS_RESPONSE(self) ((self) ? (self)->type == tmsrp_response : tsk_false)
 
 #define TMSRP_MESSAGE(self)				((tmsrp_message_t*)(self))
 #define TMSRP_MESSAGE_AS_RESPONSE(self)	((tmsrp_response_t*)(self))
 #define TMSRP_MESSAGE_AS_REQUEST(self)	((tmsrp_request_t*)(self))
 
 
 #define TMSRP_RESPONSE_CODE(self)			 (TMSRP_MESSAGE_IS_RESPONSE((self)) ? (self)->line.response.status : 0)
 #define TMSRP_RESPONSE_PHRASE(self)			 (TMSRP_MESSAGE_IS_RESPONSE((self)) ? (self)->line.response.comment : tsk_null)
 
 #define TMSRP_REQUEST_METHOD(self)			 (TMSRP_MESSAGE_IS_REQUEST((self)) ? (self)->line.request.method : tsk_null)
 #define TMSRP_REQUEST_IS_SEND(self)			 (TMSRP_MESSAGE_IS_REQUEST(self) && (self)->line.request.type == tmsrp_SEND)
 #define TMSRP_REQUEST_IS_REPORT(self)		 (TMSRP_MESSAGE_IS_REQUEST(self) && (self)->line.request.type == tmsrp_REPORT)
 #define TMSRP_REQUEST_IS_AUTH(self)			 (TMSRP_MESSAGE_IS_REQUEST(self) && (self)->line.request.type == tmsrp_AUTH)
 
 #define TMSRP_MESSAGE_HAS_CONTENT(message)	 ((message) && (message)->Content && (message)->Content->data)
 #define TMSRP_MESSAGE_CONTENT(message)		 (TMSRP_MESSAGE_HAS_CONTENT(message) ? (message)->Content->data : 0)
 
 #define TMSRP_RESPONSE_IS(self, code)		(TMSRP_RESPONSE_CODE((self)) == code)
 #define TMSRP_RESPONSE_IS_NXX(self, N)		(TMSRP_MESSAGE_IS_RESPONSE((self)) && N##00<= TMSRP_RESPONSE_CODE((self)) && TMSRP_RESPONSE_CODE((self)) <= N##99)
 #define TMSRP_RESPONSE_IS_1XX(self)			TMSRP_RESPONSE_IS_NXX(self, 1)
 #define TMSRP_RESPONSE_IS_2XX(self)			TMSRP_RESPONSE_IS_NXX(self, 2)
 #define TMSRP_RESPONSE_IS_3XX(self)			TMSRP_RESPONSE_IS_NXX(self, 3)
 #define TMSRP_RESPONSE_IS_4XX(self)			TMSRP_RESPONSE_IS_NXX(self, 4)
 #define TMSRP_RESPONSE_IS_5XX(self)			TMSRP_RESPONSE_IS_NXX(self, 5)
 #define TMSRP_RESPONSE_IS_6XX(self)			TMSRP_RESPONSE_IS_NXX(self, 6)
 #define TMSRP_RESPONSE_IS_23456(self)		(TMSRP_MESSAGE_IS_RESPONSE((self)) && 200<= TMSRP_RESPONSE_CODE((self)) && TMSRP_RESPONSE_CODE((self)) <= 699)
 
 /**	Defines the message type (Request or Response). 
 **/
 typedef enum tmsrp_message_type_e
 {
 	tmsrp_unknown,
 	tmsrp_request,
 	tmsrp_response
 }
 tmsrp_message_type_t;
 
 typedef enum tmsrp_request_type_e
 {
 	tmsrp_NONE = 0,
 
 	tmsrp_SEND,
 	tmsrp_REPORT,
 	tmsrp_AUTH
 	//... 
 }
 tmsrp_request_type_t;
 
 typedef struct tmsrp_message_s
 {
 	TSK_DECLARE_OBJECT;
 	
 	tmsrp_message_type_t type;
 	char* tid;
 	union{
 		struct{
 			char* method;
 			tmsrp_request_type_t type;
 		} request;
 
 		struct{
 			short status;
 			char* comment;
 		} response;
 	} line;
 
 	// Very common headers
 	tmsrp_header_To_Path_t* To;
 	tmsrp_header_From_Path_t* From;
 	
 	tmsrp_header_Message_ID_t* MessageID;
 	
 	tmsrp_header_Byte_Range_t* ByteRange;
 	tmsrp_header_Failure_Report_t* FailureReport;
 	tmsrp_header_Success_Report_t* SuccessReport;
 	tmsrp_header_Status_t* Status;
 
 	//! List of @ref tmsrp_header_t elements.
 	tmsrp_headers_L_t* headers;
 
 	// Content
 	tmsrp_header_Content_Type_t* ContentType;
 	tsk_buffer_t *Content;
 
 	// End line
 	struct{
 		char* tid;
 		char cflag;
 	}end_line;
 }
 tmsrp_message_t;
 
 typedef tmsrp_message_t tmsrp_request_t; /**< MSRP request message. */
 typedef tmsrp_message_t tmsrp_response_t; /**< MSRP response message. */
 
 
 TINYMSRP_API tmsrp_message_t* tmsrp_message_create(tmsrp_message_type_t type, const char* tid, const char* method, short status, const char* comment);
 TINYMSRP_API tmsrp_message_t* tmsrp_request_create(const char* tid, const char* method);
 TINYMSRP_API tmsrp_message_t* tmsrp_response_create(const char* tid, short status, const char* comment);
 TINYMSRP_API tmsrp_message_t* tmsrp_message_create_null();
 
 TINYMSRP_API int tmsrp_message_add_header(tmsrp_message_t *self, const tmsrp_header_t *hdr);
 TINYMSRP_API int tmsrp_message_add_headers(tmsrp_message_t *self, ...);
 
 #if 0
 static void TMSRP_MESSAGE_ADD_HEADER(tmsrp_message_t *self, ...)
 	{
 		va_list ap;
 		tmsrp_header_t *header;
 		const tsk_object_def_t *objdef;
 		
 		va_start(ap, self);
 		objdef = va_arg(ap, const tsk_object_def_t*);
 		header = tsk_object_new_2(objdef, &ap);
 		va_end(ap);
 
 		tmsrp_message_add_header(self, header);
 		tsk_object_unref(header);
 	}
 #else
 #define TMSRP_MESSAGE_ADD_HEADER(self, objdef, ...)						\
 	{																	\
 		tmsrp_header_t *header = (tmsrp_header_t *)tsk_object_new(objdef, ##__VA_ARGS__);	\
 		tmsrp_message_add_header(self, header);							\
 		tsk_object_unref(header);										\
 	}
 #endif
 
 TINYMSRP_API tmsrp_request_type_t tmsrp_request_get_type(const char* method);
 TINYMSRP_API const tmsrp_header_t *tmsrp_message_get_headerAt(const tmsrp_message_t *self, tmsrp_header_type_t type, tsk_size_t index);
 TINYMSRP_API const tmsrp_header_t *tmsrp_message_get_header(const tmsrp_message_t *self, tmsrp_header_type_t type);
 TINYMSRP_API const tmsrp_header_t *tmsrp_message_get_headerByName(const tmsrp_message_t *self, const char* name);
 
 TINYMSRP_API int tmsrp_message_add_content(tmsrp_message_t *self, const char* content_type, const void* content, tsk_size_t size);
 
 TINYMSRP_API int tmsrp_message_serialize(const tmsrp_message_t *self, tsk_buffer_t *output);
 TINYMSRP_API char* tmsrp_message_tostring(const tmsrp_message_t *self);
 
 
 TINYMSRP_GEXTERN const tsk_object_def_t *tmsrp_message_def_t;
 
 TMSRP_END_DECLS
 
 #endif /* TINYMSRP_MESSAGE_H */