/*
 * @author  xamidev <xamidev@riseup.net>
 * @brief   Framebuffer-based terminal driver
 * @license GPL-3.0-only
 */

// Terminal output
/*
There are a couple of bugs here and there but for now I don't care too much
because this shitty implementation will be replaced one day by Flanterm
(once memory management is okay: paging & kernel malloc)
*/

#include <stddef.h>
#include <kernel.h>
#include "term.h"
#include "config.h"
#include "flanterm.h"
#include "flanterm_backends/fb.h"
#include "mem/heap/kheap.h"
#include "limine.h"

extern struct flanterm_context* ft_ctx;
extern struct init_status init;

// Overhead that could be avoided, right? (for printf)
void _putchar(char character)
{
	// TODO: Spinlock here (terminal access)
	flanterm_write(ft_ctx, &character, 1);
}

// Debug-printing
void kputs(const char* str)
{
	size_t i=0;
	while (str[i] != 0) {
		_putchar(str[i]);
		i++;
	}
	_putchar('\r');
}

extern struct flanterm_context* ft_ctx;
extern struct boot_context boot_ctx;

void flanterm_free_wrapper(void* ptr, size_t size)
{
	(void)size;
	kfree(ptr);
}

void term_init()
{
	uint32_t bgColor = 0x252525;
	ft_ctx = flanterm_fb_init(
        kmalloc,
        flanterm_free_wrapper,
        boot_ctx.fb->address, boot_ctx.fb->width, boot_ctx.fb->height, boot_ctx.fb->pitch,
        boot_ctx.fb->red_mask_size, boot_ctx.fb->red_mask_shift,
        boot_ctx.fb->green_mask_size, boot_ctx.fb->green_mask_shift,
        boot_ctx.fb->blue_mask_size, boot_ctx.fb->blue_mask_shift,
        NULL,
        NULL, NULL,
        &bgColor, NULL,
        NULL, NULL,
        NULL, 0, 0, 1,
        0, 0,
        0,
        0
    );
	init.terminal = true;
}