/*
 * 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_debug.h
  * @brief Useful functions for debugging purpose.
  */
 #ifndef _TINYSAK_DEBUG_H_
 #define _TINYSAK_DEBUG_H_
 
 #include "tinysak_config.h"
 #include <stdio.h>
 
 TSK_BEGIN_DECLS
 
 
 #if !defined(DEBUG_LEVEL)
 #	define DEBUG_LEVEL DEBUG_LEVEL_ERROR
 #endif
 
 /**@ingroup tsk_debug_group
 * @def DEBUG_LEVEL
 * Defines the defaul debug level. Sould be: @ref DEBUG_LEVEL_INFO, @ref DEBUG_LEVEL_WARN, @ref DEBUG_LEVEL_ERROR or @ref DEBUG_LEVEL_FATAL. <br />
 * You can set this value at build time using your CFLAGS (e.g. <i>CFLAGS=$CFLAGS -DDEBUG_LEVEL=DEBUG_LEVEL_ERROR</i>). <br />
 * At runtime, this value could be changed using @ref tsk_debug_set_level().
 */
 /**@ingroup tsk_debug_group
 * @def DEBUG_LEVEL_INFO
 * @a INFO level (4). This is the lowest possible level and will turn on all logging.
 */
 /**@ingroup tsk_debug_group
 * @def DEBUG_LEVEL_WARN
 * @a WARN level (3). Warning are error which could change the normal process without blocking the application.
 */
 /**@ingroup tsk_debug_group
 * @def DEBUG_LEVEL_ERROR
 * @a ERROR level (2). This level logs error which might change the application behavior.
 */
 /**@ingroup tsk_debug_group
 * @def DEBUG_LEVEL_FATAL
 * @a FATAL level (1). This level logs fatal errors which might abort the application.
 */
 /**@ingroup tsk_debug_group
 * @def TSK_DEBUG_INFO
 * Writes the C string pointed by @a FMT to <b>stderr</b> output if debug level is >= 4 (@ref DEBUG_LEVEL_INFO) and no callack function is defined using @ref tsk_debug_set_info_cb. <br />
 * <i>Example</i>:
 * @code
 * TSK_DEBUG_INFO("Project name = %s, version = %f", "Doubango", 3.0);
 * @endcode
 * @param FMT C string that contains the text to be written to <b>stderr</b>. The string accept same specifiers as <a target=_blank href="http://www.cplusplus.com/reference/cstdio/printf/">printf</a>.
 * @sa @ref TSK_DEBUG_WARN @ref TSK_DEBUG_ERROR @ref TSK_DEBUG_FATAL <br />
 */
 /**@ingroup tsk_debug_group
 * @def TSK_DEBUG_WARN
 * Writes the C string pointed by @a FMT to <b>stderr</b> output if debug level is >= 4 (@ref DEBUG_LEVEL_WARN) and no callack function is defined using @ref tsk_debug_set_warn_cb. <br />
 * <i>Example</i>:
 * @code
 * TSK_DEBUG_WARN("Warning code = %d, descripting = %s", 404, "Not found");
 * @endcode
 * @param FMT C string that contains the text to be written to <b>stderr</b>. The string accept same specifiers as <a target=_blank href="http://www.cplusplus.com/reference/cstdio/printf/">printf</a>.
 * @sa @ref TSK_DEBUG_INFO @ref TSK_DEBUG_ERROR @ref TSK_DEBUG_FATAL <br />
 */
 /**@ingroup tsk_debug_group
 * @def TSK_DEBUG_ERROR
 * Writes the C string pointed by @a FMT to <b>stderr</b> output if debug level is >= 4 (@ref DEBUG_LEVEL_ERROR) and no callack function is defined using @ref tsk_debug_set_error_cb. <br />
 * <i>Example</i>:
 * @code
 * TSK_DEBUG_ERROR("Warning code = %d, descripting = %s", 400, "Bad request");
 * @endcode
 * @param FMT C string that contains the text to be written to <b>stderr</b>. The string accept same specifiers as <a target=_blank href="http://www.cplusplus.com/reference/cstdio/printf/">printf</a>.
 * @sa @ref TSK_DEBUG_INFO @ref TSK_DEBUG_WARN @ref TSK_DEBUG_FATAL <br />
 */
 /**@ingroup tsk_debug_group
 * @def TSK_DEBUG_FATAL
 * Writes the C string pointed by @a FMT to <b>stderr</b> output if debug level is >= 4 (@ref DEBUG_LEVEL_FATAL) and no callack function is defined using @ref tsk_debug_set_fatal_cb. <br />
 * <i>Example</i>:
 * @code
 * TSK_DEBUG_ERROR("Warning code = %d, descripting = %s", 403, "Forbidden");
 * @endcode
 * @param FMT C string that contains the text to be written to <b>stderr</b>. The string accept same specifiers as <a target=_blank href="http://www.cplusplus.com/reference/cstdio/printf/">printf</a>.
 * @sa @ref TSK_DEBUG_INFO @ref TSK_DEBUG_WARN @ref TSK_DEBUG_ERROR <br />
 */

 #define DEBUG_LEVEL_TEST		5

 #define DEBUG_LEVEL_INFO		4
 #define DEBUG_LEVEL_WARN		3
 #define DEBUG_LEVEL_ERROR		2
 #define DEBUG_LEVEL_FATAL		1

 #define __FILENAME3__ (strrchr(__FILE__, '\\') ? (strrchr(__FILE__, '\\') + 1) : (strrchr(__FILE__, '//')? strrchr(__FILE__, '//') + 1:__FILE__))
 //#define __FILENAME3__ __FILE__

 
 #if TSK_HAVE_DEBUG_H
 #	include <my_debug.h>
 #else
 	typedef int (*tsk_debug_f)(const void* arg, const char* fmt, ...);
 

 	/* TEST */
 #define TSK_DEBUG_TEST(FMT, ...)		\
 	if(tsk_debug_get_level() >= DEBUG_LEVEL_ERROR){ \
 		if(tsk_debug_get_test_cb()) \
 			tsk_debug_get_test_cb()(tsk_debug_get_arg_data(), "***TEST: function: \"%s()\" \nfile: \"%s\" \nline: \"%u\" \nMSG: " FMT "\n", __FUNCTION__,  __FILENAME3__, __LINE__, ##__VA_ARGS__); \
 		else \
 			fprintf(stderr, "***TEST: function: \"%s()\" \nfile: \"%s\" \nline: \"%u\" \nMSG: " FMT "\n", __FUNCTION__,  __FILENAME3__, __LINE__, ##__VA_ARGS__); \
 	}
 

 	/* INFO */
 #define TSK_DEBUG_INFO(FMT, ...)		\
 	if(tsk_debug_get_level() >= DEBUG_LEVEL_INFO){ \
 		if(tsk_debug_get_info_cb()) \
 			tsk_debug_get_info_cb()(tsk_debug_get_arg_data(), "*INFO: " FMT "\n", ##__VA_ARGS__); \
 		else \
 			fprintf(stderr, "*INFO: " FMT "\n", ##__VA_ARGS__); \
 	}
 
 
 	/* WARN */
 #define TSK_DEBUG_WARN(FMT, ...)		\
 	if(tsk_debug_get_level() >= DEBUG_LEVEL_WARN){ \
 		if(tsk_debug_get_warn_cb()) \

 			tsk_debug_get_warn_cb()(tsk_debug_get_arg_data(), "**WARN: function: \"%s()\" \nfile: \"%s\" \nline: \"%u\" \nMSG: " FMT "\n", __FUNCTION__,  __FILENAME3__, __LINE__, ##__VA_ARGS__); \

 		else \

 			fprintf(stderr, "**WARN: function: \"%s()\" \nfile: \"%s\" \nline: \"%u\" \nMSG: " FMT "\n", __FUNCTION__,  __FILENAME3__, __LINE__, ##__VA_ARGS__); \

 	}
 
 	/* ERROR */
 #define TSK_DEBUG_ERROR(FMT, ...) 		\
 	if(tsk_debug_get_level() >= DEBUG_LEVEL_ERROR){ \
 		if(tsk_debug_get_error_cb()) \

 			tsk_debug_get_error_cb()(tsk_debug_get_arg_data(), "***ERROR: function: \"%s()\" \nfile: \"%s\" \nline: \"%u\" \nMSG: " FMT "\n", __FUNCTION__,  __FILENAME3__, __LINE__, ##__VA_ARGS__); \

 		else \

 			fprintf(stderr, "***ERROR: function: \"%s()\" \nfile: \"%s\" \nline: \"%u\" \nMSG: " FMT "\n", __FUNCTION__,  __FILENAME3__, __LINE__, ##__VA_ARGS__); \

 	}
 
 
 	/* FATAL */
 #define TSK_DEBUG_FATAL(FMT, ...) 		\
 	if(tsk_debug_get_level() >= DEBUG_LEVEL_FATAL){ \
 		if(tsk_debug_get_fatal_cb()) \

 			tsk_debug_get_fatal_cb()(tsk_debug_get_arg_data(), "****FATAL: function: \"%s()\" \nfile: \"%s\" \nline: \"%u\" \nMSG: " FMT "\n", __FUNCTION__,  __FILENAME3__, __LINE__, ##__VA_ARGS__); \

 		else \

 			fprintf(stderr, "****FATAL: function: \"%s()\" \nfile: \"%s\" \nline: \"%u\" \nMSG: " FMT "\n", __FUNCTION__,  __FILENAME3__, __LINE__, ##__VA_ARGS__); \

 	}
 
 
 TINYSAK_API void tsk_debug_set_arg_data(const void*);
 TINYSAK_API const void* tsk_debug_get_arg_data();

 TINYSAK_API void tsk_debug_set_test_cb(tsk_debug_f );
 TINYSAK_API tsk_debug_f tsk_debug_get_test_cb();

 TINYSAK_API void tsk_debug_set_info_cb(tsk_debug_f );
 TINYSAK_API tsk_debug_f tsk_debug_get_info_cb();
 TINYSAK_API void tsk_debug_set_warn_cb(tsk_debug_f );
 TINYSAK_API tsk_debug_f tsk_debug_get_warn_cb();
 TINYSAK_API void tsk_debug_set_error_cb(tsk_debug_f );
 TINYSAK_API tsk_debug_f tsk_debug_get_error_cb( );
 TINYSAK_API void tsk_debug_set_fatal_cb(tsk_debug_f );
 TINYSAK_API tsk_debug_f tsk_debug_get_fatal_cb( );
 TINYSAK_API int tsk_debug_get_level( );
 TINYSAK_API void tsk_debug_set_level(int );
 
 #endif /* TSK_HAVE_DEBUG_H */
 
 
 TSK_END_DECLS
 
 #endif /* _TINYSAK_DEBUG_H_ */