/**
	ConsolTest.c

	ÀÌ ¸ðµâÀº DHL_OS_Printf ¿Í DHL_OS_GetChar ¿¡ ´ëÇÑ Å×½ºÆ® ·çƾÀÌ´Ù.

*/


#include "DHL_OSAL.h"

//#include "DHL_APITest.h"

//#include <string.h>



#if COMMENT
____Test_1____(){}
#endif

/*
	±âº» ÀÔ/Ãâ·Â µ¿ÀÛ Å×½ºÆ®.

		±ÛÀÚ ÇÑÀÚ¸¦ ÀÔ·Â ¹Þ°í ÀÔ·Â ¹ÞÀº ±ÛÀÚÀÇ ASCII Äڵ带 ´Ù½Ã Ãâ·ÂÇÑ´Ù.

	üũ Æ÷ÀÎÆ®:
	
	1. ÀÔ·ÂÀÌ ¾ø´Â °æ¿ì NULL ÀÌ ¸®ÅϵǴÂÁö ¾Æ´Ï¸é ´ë±âÇÏ´ÂÁö È®ÀÎÇÑ´Ù.
	
*/
void Console_EchoTest(void)
{
	UINT32 key, prev_key = 0;
	int count = 0;
	
	DHL_OS_Printf("\n\n%s\n\n", __func__);

	DHL_OS_Printf("press same key 5 times to exit..\n");
	
	while (1)
	{
		key = DHL_OS_GetChar();

		if (key >= 0x20 && key < 0x7f) // ASCII
			DHL_OS_Printf("input char: %02x, '%c'\n", key, key);
		else
			DHL_OS_Printf("input char: %08x\n", key);

		// check exit condition.
		count = (key == prev_key) ? count+1 : 0;
		prev_key = key;
		
		if (count >= 5) {
			DHL_OS_Printf("exit test\n");
			break;
		}
	}
}




#if COMMENT
____Test_2____(){}
#endif



/*
	DHL_EXTKEY_t enum ŸÀÔÀº API header ÆÄÀÏ·Î À̵¿ÇÔ.
*/


struct DHL_EXTKEY_NAME_t {
	UINT32 extkey;
	char *name;
};

static struct DHL_EXTKEY_NAME_t extkeytbl[] = 
{
	DHL_EXTKEY_TAB, "TAB",
	DHL_EXTKEY_CR,  "CR",
	DHL_EXTKEY_ESC, "ESC",
	
	DHL_EXTKEY_F1,  "F1",
	DHL_EXTKEY_F2,  "F2",
	DHL_EXTKEY_F3,  "F3",
	DHL_EXTKEY_F4,  "F4",
	DHL_EXTKEY_F5,  "F5",
	DHL_EXTKEY_F6,  "F6",
	DHL_EXTKEY_F7,  "F7",
	DHL_EXTKEY_F8,  "F8",
	DHL_EXTKEY_F9,  "F9",
	DHL_EXTKEY_F10, "F10",
	DHL_EXTKEY_F11, "F11",
	DHL_EXTKEY_F12, "F12",
	
	DHL_EXTKEY_DEL, "DEL",

	DHL_EXTKEY_UP,  "Up",
	DHL_EXTKEY_DN,  "Down",
	DHL_EXTKEY_RG,  "Right",
	DHL_EXTKEY_LF,  "Left",

	DHL_EXTKEY_PGUP, "PgUp",
	DHL_EXTKEY_PGDN, "PgDn",

	DHL_EXTKEY_HOME, "Home",
	DHL_EXTKEY_END,  "End",
};

static char *get_key_string(int key)
{
	int i;
	for (i=0; i<sizeof(extkeytbl)/sizeof(extkeytbl[0]); i++) {
		if (extkeytbl[i].extkey == key)
			return extkeytbl[i].name;
	}
	return "?";
}



/*
	È®Àå Å° ÀÔ/Ãâ·Â µ¿ÀÛ Å×½ºÆ®.

	1. È®Àå Å°¸¦ Áö¿øÇÏ´Â °æ¿ì Å° Äڵ尡 Á¤»óÀûÀÎÁö üũÇÑ´Ù.

*/
void Console_ExtKeyEchoTest(void)
{
	UINT32 key, prev_key = 0;
	int count = 0;
	UINT32 ms;
	
	DHL_OS_Printf("\n\n%s\n\n", __func__);

	DHL_OS_Printf("press same key 5 times to exit..\n");
	
	while (1)
	{
		key = DHL_OS_GetChar();

		ms = DHL_OS_GetMsCount();
		if (key >= 0x20 && key < 0x7f) // ASCII
			DHL_OS_Printf("(%04u) input char: %02x, '%c'\n", 
			               ms%10000, key, key);
		else if (key <= 0xff) // 8-bits
			DHL_OS_Printf("(%04u) input char: %02x, '%s'\n", 
			               ms%10000, key, get_key_string(key));
		else
			DHL_OS_Printf("(%04u) input char: %08x, '%s'\n", 
			               ms%10000, key, get_key_string(key));

		// check exit condition.
		count = (key == prev_key) ? count+1 : 0;
		prev_key = key;
		
		if (count >= 5) {
			DHL_OS_Printf("exit test\n");
			break;
		}
	}
}


/*
press same key 5 times to exit..
(4071) input char: 61, 'a'
(4292) input char: 62, 'b'
(4544) input char: 63, 'c'
(4776) input char: 64, 'd'
(7508) input char: 7f31317e, 'F1'
(7860) input char: 7f31327e, 'F2'
(8130) input char: 7f31337e, 'F3'
(9681) input char: 7f000044, 'Left'
(0023) input char: 7f000043, 'Right'
(0515) input char: 7f000041, 'Up'
(0767) input char: 7f000042, 'Down'
(4563) input char: 20, ' '
(4743) input char: 20, ' '
(4944) input char: 20, ' '
(5115) input char: 20, ' '
(5305) input char: 20, ' '
(5658) input char: 20, ' '
exit test

*/


#if COMMENT
____Test_3____(){}
#endif



/*
	string.h ÀÇ memmove°¡ Á¦°øµÇÁö ¾Ê´Â systemÀ» À§ÇÑ ¹è·Á.
*/
#if NEED_MEMMOVE_DEFINE
static void memmove(void *dst, void *src, int len)
{
	UINT8 *pd = dst, *ps = src;

	if (len <= 0) return; // nothing to move.
	
	if (dst < src) { // copy from first
		while (len-- > 0) *pd++ = *ps++;
	}
	else if (src < dst) { // copy from last
		pd += len-1; ps += len-1;
		while (len-- > 0) *pd-- = *ps--;
	}
	else {
		// we don't need to move.
	}
}
#endif


/*
	wait console input, and make up line command and return.

	@buf is address of buffer where input command is stored.
	@size is maximum size of @buf.

	return the number of characters input.
	return -1 if input is cancelled by ESC (or Ctrl+C).

	@buf does not contain trailing CR/LF.
	
	This does not privode command history function. 
	Use mini shell for more powerful shell feature.

*/
#define DHL_CONSOLE_FLAG_NOECHO 0x1

static int get_line(char *buf, int size, UINT32 flags)
{
	char *p = buf;
	UINT32 key;
	char tmp[10] = {0, };
	BOOL cancelled = FALSE;

	while (1)
	{
		key = DHL_OS_GetChar();
		
		if (key == 0)
			continue;

		if (key == 0xd || key == 0xa) {
			*p = 0; // null terminate and exit
			if (!(flags & DHL_CONSOLE_FLAG_NOECHO))
				DHL_OS_Printf("\n");
			break;
		}
		else if (key == 0x1b) { // ESC key
			cancelled = TRUE;
			break;
		}
		
		// process input key
		//
		if (key == '\b' || key == 0x7F) { // backspace is treated as special
			if (p > buf) {   // go back ÇÒ ±ÛÀÚ°¡ ÀÖ´Â °æ¿ì¿¡¸¸..
				if (!(flags & DHL_CONSOLE_FLAG_NOECHO))
					DHL_OS_Printf("\b \b");
				*--p = ' ';
			}
			continue;
		}
		else if ((int)(p - buf) < size-1) {
			if (!(flags & DHL_CONSOLE_FLAG_NOECHO)) {
				tmp[0] = key; tmp[1] = 0; // ÇÑ ±ÛÀÚ¸¸ Ãâ·Â.
				DHL_OS_Printf(tmp);
			}

			*p++ = key;
		}
		else {
			// do nothing, just ignore key.. buffer full
		}
	}

	if (cancelled)
		return -1;

	// trim trailing spaces

	p = buf + strlen(buf) - 1;

	while (p >= buf && (*p == ' ' || *p == '\t')) {
		*p-- = 0;
		//n_trim++;
	}

	// skip head spaces and tab

	p = buf;
	while (*p == ' ' || *p == '\t') p++;

	// shift strings
	if (p !=  buf)
		memmove(buf, p, strlen(p)+1);

	return strlen(buf);
	
}


void Console_LineTest(void)
{
	int n;
	char buf[200];

	DHL_OS_Printf("\n\n%s\n\n", __func__);

	DHL_OS_Printf("type 'exit' to exit..\n");

	while (1) 
	{
		DHL_OS_Printf("input: ");
		
		// ¿ø·¡ driver¿¡¼­´Â echo¸¦ ÇÏÁö ¾ÊÀ¸¹Ç·Î 
		// DHL¿¡¼­ echo¸¦ ÇØÁÖ´Â °ÍÀÌ ¸Â´Ù.
		n = get_line(buf, sizeof(buf), 0);

		if (n < 0) { // cancelled.
			DHL_OS_Printf(" ESC\n");
			continue;
		}

		if (n == 0) continue;
		
		DHL_OS_Printf("[%s]\n", buf);

		// check exit condition
		if (strcmp(buf, "exit") == 0) {
			DHL_OS_Printf("exit test\n");
			break;
		}
	}
}


/*
	Å×½ºÆ® °á°ú:
	
Console_LineTest
 
type 'exit' to exit..
input: This is test
[This is test]
input: exit
[exit]
exit test

*/

/* end of file */