#ifndef __VXBOOT_TERMINAL_H__
# define __VXBOOT_TERMINAL_H__

#include <stddef.h>
#include <stdint.h>
#include <stdarg.h>
#include <gint/defs/types.h>

/* internal terminal hardcoded information */
#define TERM_PRIVATE_WATERMARK	(0xdeadbeef)
#define TERM_BUFFER_NB_FRAME	(2)

/* hardcoded font size (TODO: dynamic !) */
#ifdef FXCG50
#define FWIDTH	8
#define FHEIGHT	9
#endif
#ifdef FX9860G
#define FWIDTH	3
#define FHEIGHT	5
#endif

/* define terminal structure */
struct terminal {
	/* windows information */
	struct {
		unsigned short ws_col;
		unsigned short ws_row;
		unsigned short ws_xpixel;
		unsigned short ws_ypixel;
		unsigned short ft_xpixel;
		unsigned short ft_ypixel;
	} winsize;

	/* cursor information */
	struct {
		unsigned short x;
		unsigned short y;
	} cursor;

	/* buffer information */
	struct {
		uint8_t *data;
		off_t cursor;
		size_t size;
	} buffer;

	/* private information */
	struct {
		struct {
			int id;
		} timer;
		uint32_t watermark;
		struct {
			int fg;
			int bg;
		} color;
	} private;
};

/* define the terminal */
extern struct terminal terminal;

//---
//	User interface
//---
enum {
	LOG_EMERG,
	LOG_ALERT,
	LOG_CRIT,
	LOG_ERR,
	LOG_WARNING,
	LOG_NOTICE,
	LOG_INFO,
	LOG_DEBUG
};

extern int terminal_open(void);
extern int terminal_write(const char *format, ...);
extern int terminal_vwrite(const char *format, va_list ap);
extern int terminal_log(int level, const char *format, ...);
extern int terminal_read(void *buffer, size_t nb);
extern int terminal_close(void);

//---
//	Internal interface
//---
extern void terminal_clear(void);
extern int terminal_cursor_handler(void);
extern void terminal_buffer_display(void);
extern void terminal_buffer_insert(char *buffer, size_t nb);

#endif /*__FXBOOT_TERMINAL_H__*/