#ifndef _DRIVERS_VGA_H
#define _DRIVERS_VGA_H

#include <stdint.h>
#include <stddef.h>

#define VGA_WIDTH  80
#define VGA_HEIGHT 25
#define VGA_MEMORY 0xB8000

enum vga_color {
    VGA_COLOR_BLACK = 0,
    VGA_COLOR_BLUE = 1,
    VGA_COLOR_GREEN = 2,
    VGA_COLOR_CYAN = 3,
    VGA_COLOR_RED = 4,
    VGA_COLOR_MAGENTA = 5,
    VGA_COLOR_BROWN = 6,
    VGA_COLOR_LIGHT_GREY = 7,
    VGA_COLOR_DARK_GREY = 8,
    VGA_COLOR_LIGHT_BLUE = 9,
    VGA_COLOR_LIGHT_GREEN = 10,
    VGA_COLOR_LIGHT_CYAN = 11,
    VGA_COLOR_LIGHT_RED = 12,
    VGA_COLOR_LIGHT_MAGENTA = 13,
    VGA_COLOR_LIGHT_BROWN = 14,
    VGA_COLOR_WHITE = 15,
};

static inline uint8_t vga_entry_color(enum vga_color fg, enum vga_color bg) {
    return fg | (bg << 4);
}

static inline uint16_t vga_entry(unsigned char uc, uint8_t color) {
    return (uint16_t)uc | ((uint16_t)color << 8);
}

void vga_init(void);
void vga_clear(void);
void vga_putc(char c);
void vga_write(const char* str);
void vga_set_color(enum vga_color fg, enum vga_color bg);
void vga_set_cursor(int row, int col);
void vga_get_cursor(int* row, int* col);
void vga_enable_cursor(uint8_t cursor_start, uint8_t cursor_end);
void vga_disable_cursor(void);

#endif // _DRIVERS_VGA_H