#include "board.h"
#include "if_rtt.h"
#include "stdio.h"
#include "stdarg.h"
#include "debug.h"
#include "string.h"
#ifdef RT_THREAD
#include "rtthread.h"
#endif


#if 0


#define DBG_DEV_INIT()     rtt()->init()
#define DBG_DEV_WRITE(d,len)    rtt()->write(d,len)

#else

#define DBG_DEV_INIT()\
  {\
    g_data.uart=dev_get("host");\
    if(g_data.uart){\
      g_data.uart->init(g_data.uart,0);\
    }\
  }
#define DBG_DEV_WRITE(d,len)\
  {\
    if(g_data.uart){\
      g_data.uart->write(g_data.uart,d,len,1000);\
    }\
  }

#endif

#define CONSOLEBUF_SIZE 1024



#ifdef DEBUG

typedef struct{
  int inited;
	#ifdef RT_THREAD
  struct rt_mutex mutex;
	#endif
  uart_def *uart;
  int enable;
}self_def;

static self_def g_data;

int debug_init(void)
{
  if(g_data.inited==0)
  {
		#ifdef RT_THREAD
    rt_mutex_init(&g_data.mutex,"debug_mutex",RT_IPC_FLAG_FIFO);
		#endif
    DBG_DEV_INIT();
    DBG_DEV_WRITE((const uint8_t *)"\r\n",2);
    g_data.inited=1;
    DBG_LOG("debug inited.\r\n");
  }
  return 0;
}


void debug_log(const char *file,const char *fun,int line,int level,const char *fmt, ...)
{
  if(g_data.inited==0) return;
  va_list args;
  size_t length;
  static char log_buf[CONSOLEBUF_SIZE];
  static const char *level_str[]={"[info] ","[log] ","[warn] ","[err] "};
  static int level_str_len[]={7,6,7,6};
  if(level<DBG_LEVEL_INFO||level>DBG_LEVEL_ERR) return;
	#ifdef RT_THREAD
  rt_mutex_take(&g_data.mutex,RT_WAITING_FOREVER);
	#endif
  memcpy(log_buf,level_str[level],level_str_len[level]);
  length=level_str_len[level];
  length+=sprintf(log_buf + length,"%s|%s|%d| ",file,fun,line);
  
  va_start(args, fmt);
  length += vsnprintf(log_buf + length, sizeof(log_buf) - length - 1, fmt, args);
  if (length > CONSOLEBUF_SIZE - 1)
    length = CONSOLEBUF_SIZE - 1;
  va_end(args);
  memcpy(&log_buf[length],"\r\n",2);
  length+=2;
  if(g_data.enable!=0){
    DBG_DEV_WRITE((const uint8_t *)log_buf,length);
  }
	#ifdef RT_THREAD
  rt_mutex_release(&g_data.mutex);
	#endif
}


void debug_enable(int enable)
{
  g_data.enable=enable;
}

#else




#endif