#pragma once

#include "pxl8_gfx.h"
#include "pxl8_types.h"

typedef struct pxl8_ui pxl8_ui;

typedef struct pxl8_ui_theme {
    u8 text;
    u8 border;
    u8 window_bg;
    u8 title_bg;
    u8 title_text;
    u8 panel_bg;
    u8 button;
    u8 button_hover;
    u8 button_focus;
    u8 base;
    u8 base_hover;
    u8 base_focus;
    u8 scroll_base;
    u8 scroll_thumb;
} pxl8_ui_theme;

typedef struct pxl8_frame_theme {
    u8 bg_color;
    u32 sprite_id;
    i32 corner_size;
    i32 edge_size;
    i32 padding;
} pxl8_frame_theme;

typedef struct pxl8_menu_item {
    bool enabled;
    const char* label;
} pxl8_menu_item;

typedef enum pxl8_ui_options {
    PXL8_UI_NOCLOSE     = 1 << 0,
    PXL8_UI_NOFRAME     = 1 << 1,
    PXL8_UI_NORESIZE    = 1 << 2,
    PXL8_UI_NOTITLE     = 1 << 3
} pxl8_ui_options;

#ifdef __cplusplus
extern "C" {
#endif

pxl8_ui* pxl8_ui_create(pxl8_gfx* gfx);
void pxl8_ui_destroy(pxl8_ui* ui);

void pxl8_ui_frame_begin(pxl8_ui* ui);
void pxl8_ui_frame_end(pxl8_ui* ui);

void pxl8_ui_input_keydown(pxl8_ui* ui, i32 key);
void pxl8_ui_input_keyup(pxl8_ui* ui, i32 key);
void pxl8_ui_input_mousedown(pxl8_ui* ui, i32 x, i32 y, i32 button);
void pxl8_ui_input_mousemove(pxl8_ui* ui, i32 x, i32 y);
void pxl8_ui_input_mouseup(pxl8_ui* ui, i32 x, i32 y, i32 button);
void pxl8_ui_input_scroll(pxl8_ui* ui, i32 x, i32 y);
void pxl8_ui_input_text(pxl8_ui* ui, const char* text);

bool pxl8_ui_button(pxl8_ui* ui, const char* label);
bool pxl8_ui_checkbox(pxl8_ui* ui, const char* label, bool* state);
void pxl8_ui_indent(pxl8_ui* ui, i32 amount);
void pxl8_ui_label(pxl8_ui* ui, const char* text);
void pxl8_ui_layout_row(pxl8_ui* ui, i32 item_count, const i32* widths, i32 height);
i32 pxl8_ui_menu(pxl8_ui* ui, pxl8_menu_item* items, i32 item_count);
void pxl8_ui_panel(pxl8_ui* ui, pxl8_bounds rect, pxl8_frame_theme* theme);
bool pxl8_ui_window_begin(pxl8_ui* ui, const char* title, pxl8_bounds rect, i32 options);
void pxl8_ui_window_end(pxl8_ui* ui);
void pxl8_ui_window_set_open(pxl8_ui* ui, const char* title, bool open);

pxl8_frame_theme pxl8_ui_theme_default(void);

#ifdef __cplusplus
}
#endif