#ifndef TEENSY_UI_H_
#define TEENSY_UI_H_

#include "teensy_common.h"
#include "teensy.h"

#define TYUI_MAX_LAYOUT_SIZE (16)
#define TYUI_DEFAULT_MIN_WINDOW_SIZE (ty_vec2i(32, 32))

#define TYUI_WIN_NORESIZE  (1 << 0)
#define TYUI_WIN_NOCLOSE   (1 << 1)
#define TYUI_WIN_NOMOVE    (1 << 2)
#define TYUI_WIN_INVISIBLE (1 << 3)

#define tyui_begin_window(_title, _rect, _id) \
    tyui_begin_window_ex((tyui_Window_Conf){ \
        .title = _title, \
        .rect = _rect, \
        .min_size = TYUI_DEFAULT_MIN_WINDOW_SIZE, \
        .id = _id, \
        .flags = 0, \
    }, NULL)

#define tyui_text(...) tyui_text_ex(TYUI_ALIGN_LEFT, __VA_ARGS__)
#define tyui_slider(min, max, value_ptr) \
    tyui_slider_ex(min, max, value_ptr, true, TYUI_ALIGN_CENTER)
#define tyui_blank_slider(min, max, value_ptr) \
    tyui_slider_ex(min, max, value_ptr, false, 0)

typedef uint8_t tyui_Align;
enum {
    TYUI_ALIGN_LEFT,
    TYUI_ALIGN_RIGHT,
    TYUI_ALIGN_CENTER,
};

typedef uint8_t tyui_Id;

typedef struct {
    ty_Color fg_normal;
    ty_Color bg_normal;
    ty_Color fg_hover;
    ty_Color bg_hover;
    ty_Color fg_pressed;
    ty_Color bg_pressed;
    ty_Color win_bg;
    ty_Color win_border;
    ty_Color win_title;
    ty_Color frame;
    int title_bar_height;
    int padding;
    int control_padding;
    int frame_size;
    int grabber_size;
    const char *slider_fmt;
} tyui_Style;

typedef struct {
    const char *title;
    ty_Recti rect;
    ty_Vec2i min_size;
    tyui_Id *id;
    uint32_t flags;
} tyui_Window_Conf;

void tyui_init(const ty_Font *font);
void tyui_deinit(void);

void tyui_push_layout(const float *column_widths);
void tyui_pop_layout(void);

bool tyui_begin_window_ex(tyui_Window_Conf conf, bool *closed_ptr);
void tyui_end_window(void);

bool tyui_button(const char *text);
void tyui_text_ex(tyui_Align align, const char *fmt, ...);
void tyui_slider_ex(
    float min,
    float max,
    float *value_ptr,
    bool show_value,
    tyui_Align value_align
);

void tyui_draw(void);

#endif // TEENSY_UI_H_