#ifndef NOXOS_DEVICE_H
#define NOXOS_DEVICE_H

#include <utils/stdtypes.h>
#include <drivers/driver_manager.h>


typedef enum {
    
    DEVICE_PCI              = 1,
    DEVICE_USB              = 2,
    DEVICE_VIRTUAL          = 255
    
} device_category_E;

typedef enum {
    
    DEVICE_CAPABILITY_TRANSMISSION,
    DEVICE_CAPABILITY_STORAGE,
    DEVICE_CAPABILITY_GRAPHICS,
    DEVICE_CAPABILITY_AUDIO
    
} device_top_level_capability_E;

typedef struct device_capabilities_t {
    
    device_top_level_capability_E      *top_level;
    
    struct device_transmission_capability_t {
        // TODO
    } transmission;
    
    struct device_storage_capability_t {
        char                                uuid[32];
        uint64_t                            size;
    } storage;
    
    struct device_graphics_capability_t {
        uint32_t                            fb_width;
        uint32_t                            fb_height;
        uint16_t                            bits_per_pixel;
    } graphics;
    
    struct device_audio_capability_t {
        // TODO
    } audio;
    
} device_capabilities_T;

typedef struct device_t {
    
    uint32_t                            id;
    device_category_E                   category;
    void                               *specific;
    
    driver_T                           *driver;
    
} device_T;



typedef struct device_manager_t {
    
    uint32_t                    num_devices;
    device_T                   *devices;
    
} device_manager_T;

extern      device_manager_T            g_device_manager;



void        device_manager_init         ();
void        device_remove               (device_T *device);
device_T *  device_find                 (device_capabilities_T capabilities, uint32_t index, uint32_t *out_count);

#endif