/**
 * @file lv_log.c
 *
 */

/*********************
 *      INCLUDES
 *********************/
#include "lv_log.h"
#if USE_LV_LOG

#if LV_LOG_PRINTF
#include <stdio.h>
#endif
/*********************
 *      DEFINES
 *********************/

/**********************
 *      TYPEDEFS
 **********************/

/**********************
 *  STATIC PROTOTYPES
 **********************/

/**********************
 *  STATIC VARIABLES
 **********************/
static void (*print_cb)(lv_log_level_t , const char *, uint32_t ,  const char *);

/**********************
 *      MACROS
 **********************/

/**********************
 *   GLOBAL FUNCTIONS
 **********************/

/**
 * Register custom print (or anything else) function to call when log is added
 * @param f a function pointer:
 *          `void my_print (lv_log_level_t level, const char * file, uint32_t line, const char * dsc)`
 */
void lv_log_register_print(void f(lv_log_level_t , const char *, uint32_t ,  const char *))
{
	print_cb = f;
}

/**
 * Add a log
 * @param level the level of log. (From `lv_log_level_t` enum)
 * @param file name of the file when the log added
 * @param line line number in the source code where the log added
 * @param dsc description of the log
 */
void lv_log_add(lv_log_level_t level, const char * file, uint32_t line, const char * dsc)
{
	if(level >= _LV_LOG_LEVEL_NUM) return;		/*Invalid level*/

	if((level == LV_LOG_LEVEL_INFO && LV_LOG_INFO)  ||
	   (level == LV_LOG_LEVEL_WARN && LV_LOG_WARN)  ||
	   (level == LV_LOG_LEVEL_ERROR && LV_LOG_ERROR) ||
	   (level == LV_LOG_LEVEL_USER && LV_LOG_USER))
	{

#if LV_LOG_PRINTF
		static const char * lvl_prefix[] = {"Info", "Warn", "Error", "User"};
		printf("%s %s:%d:   %s\n", lvl_prefix[level], file, line, dsc);
#else
		if(print_cb) print_cb(level, file, line, dsc);
#endif
	}
}

/**********************
 *   STATIC FUNCTIONS
 **********************/

#endif /*USE_LV_LOG*/