// This file is part of noxos and licensed under the MIT open source license

#ifndef NOX_RENDERER_H
#define NOX_RENDERER_H

#include "utils/stdtypes.h"
#include "utils/string.h"
#include "utils/math.h"
#include "drivers/builtin/graphics/color.h"
#include "drivers/builtin/graphics/font.h"
#include "drivers/builtin/graphics/framebuffer.h"
#include "boot/boot_info.h"

typedef enum {
    GRAPHICS_BUFFER_STANDARD,
    GRAPHICS_BUFFER_OVERLAY,

    GRAPHICS_BUFFER_ENUM_MAX
} graphics_buffer_layer_E;

typedef struct graphics_buffer_T graphics_buffer_T;
struct graphics_buffer_T {
    color_argb_T*           buffer;
    uint32_t                width;
    uint32_t                height;
    uint32_t                pos_x;
    uint32_t                pos_y;
    bool                    blocked;
    bool                    render;
    graphics_buffer_layer_E layer;
    graphics_buffer_T*      prev;
    graphics_buffer_T*      next;
};

typedef struct {
    framebuffer_T       framebuffer;
    uint32_t*           back_buffer;
    uint64_t            buffer_size;
    graphics_buffer_T** graphics_buffer_layers;
    font_T              font;
    bool                initialized;
    bool                blocked;
} graphics_renderer_T;

graphics_buffer_T*  graphics_buffer_request             (uint32_t pos_x, uint32_t pos_y, uint32_t width, uint32_t height, graphics_buffer_layer_E layer);
void                graphics_buffer_show                (graphics_buffer_T* graphics_buffer);
void                graphics_buffer_hide                (graphics_buffer_T* graphics_buffer);
void                graphics_buffer_move                (graphics_buffer_T* graphics_buffer, uint32_t x, uint32_t y);
void                graphics_buffer_destruct            (graphics_buffer_T* graphics_buffer);
void                graphics_buffer_shift_up            (graphics_buffer_T* graphics_buffer, uint16_t shift);
void                graphics_buffer_set_pixel           (graphics_buffer_T* graphics_buffer, uint32_t x, uint32_t y, color_argb_T color);
color_argb_T        graphics_buffer_get_pixel           (graphics_buffer_T* graphics_buffer, uint32_t x, uint32_t y);
void                graphics_buffer_draw_char           (graphics_buffer_T* graphics_buffer, uint32_t x, uint32_t y, color_argb_T color, char chr);
position_T          graphics_buffer_draw_string         (graphics_buffer_T* graphics_buffer, uint32_t x, uint32_t y, color_argb_T color, string_t string);

void                graphics_renderer_init              (boot_info_T* boot_info);
void                graphics_renderer_update            ();
graphics_buffer_T*  graphics_renderer_get_top_buffer    (graphics_buffer_layer_E layer);
uint32_t            graphics_renderer_get_width         ();
uint32_t            graphics_renderer_get_height        ();

#endif //NOX_RENDERER_H