#include "string.h"
#include "console.h"
#include "memory.h"
#include "floppy.h"
#include "irq.h"
#include "process.h"
#include "fileobj.h"
#include "types.h"

void init();

// Multiboot flags

#define MB_MEM_VALID 1

typedef struct {
	unsigned int flags;
	unsigned int mem_lower;
	unsigned int mem_upper;
	// ...
} multiboot_info_t;

extern unsigned int multiboot_magic;
extern multiboot_info_t *multiboot_info;

struct process_item init_proc;

void halt() {
	__asm__("cli");
	__asm__("hlt");
}

int kebab_read(struct file_object *fo, void *buffer, size_t n) {
	char *p = buffer;
	char *kebab = "kebab";
	int i = 0;
	for (; n > 0; n--, p++) {
		*p = kebab[i];
		i = (i + 1) % 5;
	}
}

struct fops kebab_fops = {
	.read = &kebab_read,
};

struct file_object kebab_fo;

int main() {
	char buffer[256];
	
	clrscr();

	printf("LumpiOS v 1e-16 entry point\n\n");
	
	if (multiboot_magic != 0x2BADB002) {
		panic("Borked multiboot magic!! Something is wrong...");
	}

	if (!(multiboot_info->flags & MB_MEM_VALID)) {
		panic("Bootloader forgot to give us memory info :E");
	}

	memory_init((multiboot_info->mem_lower + multiboot_info->mem_upper) * 1024);
	
	irq_init();
	
//	floppy_init();
	
	console_init();

	keyboard_init();

	fileobj_init(&kebab_fo);
	kebab_fo.fops = &kebab_fops;
	devfs_register_device("kebab", &kebab_fo);
	
//	cli();

	process_init(&init_proc, (unsigned int)&init);

	context_init(&init_proc.cx);

	cur_proc = &init_proc;
	cur_cx = &cur_proc->cx;

	cur_proc->next = cur_proc;
	cur_proc->prev = cur_proc;

	internal_init_process(&init_proc);

	num_processes++;

//	printf("cr3 was 0x%x\n", cur_cx->pd);

	
//	printf(" Shhoasdasasdoop 0x%x\n", cur_cx->pd);
	set_cr3(cur_cx->pd);
}