#ifndef KERNEL_H
#define KERNEL_H

// --- MANUAL TYPE DEFINITIONS (Fixes the "missing header" error) ---
typedef unsigned char uint8_t;
typedef signed char int8_t;
typedef unsigned short uint16_t;
typedef unsigned int uint32_t;
typedef unsigned long long uint64_t;

// --- MULTIBOOT INFO ---
struct multiboot_info {
    uint32_t flags;
    uint32_t mem_lower;
    uint32_t mem_upper;
    uint32_t boot_device;
    uint32_t cmdline;
    uint32_t mods_count;
    uint32_t mods_addr;
    uint32_t syms[4];
    uint32_t mmap_length;
    uint32_t mmap_addr;
    uint32_t drives_length;
    uint32_t drives_addr;
    uint32_t config_table;
    uint32_t boot_loader_name;
    uint32_t apm_table;
    uint32_t vbe_control_info;
    uint32_t vbe_mode_info;
    uint16_t vbe_mode;
    uint16_t vbe_interface_seg;
    uint16_t vbe_interface_off;
    uint16_t vbe_interface_len;
    
    // FRAMEBUFFER INFO
    uint64_t framebuffer_addr;
    uint32_t framebuffer_pitch;
    uint32_t framebuffer_width;
    uint32_t framebuffer_height;
    uint8_t framebuffer_bpp;
    uint8_t framebuffer_type;
} __attribute__((packed));

// IO
uint8_t inb(uint16_t port);
void outb(uint16_t port, uint8_t data);

// Graphics
void init_graphics(struct multiboot_info* mb_info);
void put_pixel(int x, int y, uint32_t color);
void draw_rect(int x, int y, int w, int h, uint32_t color);

// Mouse
void init_mouse();

#endif