#include <stdbool.h>
#include <stddef.h>
#include <limine.h>
#include "io/term.h"
#include "io/printf.h"
#include "io/serial.h"
#include "mem/gdt.h"
#include "mem/utils.h"
#include "idt/idt.h"
#include "kernel.h"
#include "time/timer.h"
#include "kbd/ps2.h"

// Limine version used
__attribute__((used, section(".limine_requests")))
static volatile LIMINE_BASE_REVISION(3);

// Framebuffer request
__attribute__((used, section(".limine_requests")))
static volatile struct limine_framebuffer_request framebuffer_request = {
	.id = LIMINE_FRAMEBUFFER_REQUEST,
	.revision = 0
};

__attribute__((used, section(".limine_requests_start")))
static volatile LIMINE_REQUESTS_START_MARKER;

__attribute__((used, section(".limine_requests_end")))
static volatile LIMINE_REQUESTS_END_MARKER;

struct limine_framebuffer* framebuffer;

// Panic 
static void hcf()
{
	for (;;)
	{
		asm("hlt");
	}
}

// This is our entry point
void kmain()
{
	if (!LIMINE_BASE_REVISION_SUPPORTED) hcf();
	if (framebuffer_request.response == NULL || framebuffer_request.response->framebuffer_count < 1) hcf();

	// Get the first framebuffer from the response
	framebuffer = framebuffer_request.response->framebuffers[0];

	if (term_init()) hcf();

	if (serial_init()) kputs("kernel: serial: error: Cannot init serial communication!");

	CLEAR_INTERRUPTS;
	gdt_init();
	idt_init();
	timer_init();
	SET_INTERRUPTS;

	keyboard_init(FR);

	// Draw something
	printf("%s, %s!", "Hello", "world");

	//printf("%d", 4/0);
	hcf();
}