#include <font.h>
#include <framebuffer.h>

#define CONSOLE_BUFFER_SIZE 16384
char console_buffer[CONSOLE_BUFFER_SIZE];
char console_output_buffer[CONSOLE_BUFFER_SIZE];
char *console_buffer_p = console_buffer;
struct fb *console_framebuffer = 0;
struct font *console_font = 0;
unsigned int chars_per_line = 0, lines = 0;

void console_char_to_fb(char c, unsigned int x, unsigned int y) {
	unsigned int cx, cy, bit = 0;
	char *font_char = &console_font->data[console_font->bytes_per_char * (c - console_font->ascii_offset)];

	for (cy = 0; cy < console_font->height; cy++) {
		for (cx = 0; cx < console_font->width; cx++) {
			unsigned char on = font_char[bit / 8] & (1 << (bit % 8));
			if (on)
				fb_write_pixel(console_framebuffer, x + cx, y + cy, 0xff, 0xff, 0xff);
			else
				fb_write_pixel(console_framebuffer, x + cx, y + cy, 0x00, 0x00, 0x00);
			bit++;
		}
	}
}

void console_refresh_fb() {
	if (!console_framebuffer)
		return;
}

void console_clear() {
	int i;
	for (i = 0; i < CONSOLE_BUFFER_SIZE; i++) {
		console_buffer[i] = 0;
	}
}

void console_init(struct fb *f) {
	console_clear();
	console_refresh_fb();
	console_font = font_get();
	console_framebuffer = f;
	chars_per_line = console_framebuffer->width / console_font->width;
	lines = console_framebuffer->height / console_font->height;

	console_char_to_fb('A', 100, 100);
	console_char_to_fb('E', 111, 100);
	console_char_to_fb('D', 122, 100);
	console_char_to_fb('R', 133, 100);
	console_char_to_fb('I', 144, 100);
	console_char_to_fb('X', 155, 100);
}

void console_putc(char c) {
	*console_buffer_p = c;
	if (++console_buffer_p > console_buffer + CONSOLE_BUFFER_SIZE)
		console_buffer_p = console_buffer;
}