#include <raylib.h>
#include <stddef.h>

#ifndef UI_ELEMENTS_H
#define UI_ELEMENTS_H

static const float SCROLL_SENC = 10;
static const float TAB_WIDTH = 4;

static const int MIN_FONT_SIZE = 10;
static const int MAX_FONT_SIZE = 100;

void DrawRecBordered(Rectangle rec, Color bg, Color border_color, int border_width);
void DrawTextInRec(Rectangle rec, char *text, Font *font, int height, Color color, float padding, int *scroll);
float MeasureChar(Font *font, int height, char symbol);
bool IsMouseInRec(Rectangle rec);

// ========== TEXT EDITOR ==========

static const size_t DEFAULT_TEXT_NODE_SIZE = 256;

typedef struct {
    void *PrevNode;
    void *NextNode;
    char *text;
    size_t len;
    size_t cap;
} TextNode;


typedef struct {
    Font *font;
    int font_size;
    int spacing;

    int scroll_h;
    int scroll_v;

    /// DO NOT MODIFY THAT! It's for internal use only
    int _area_width;
    /// DO NOT MODIFY THAT! It's for internal use only
    int _area_height;
} TextAreaDisplayParams;

typedef struct {
    TextNode *StartNode;
    /// For the quick access
    TextNode *CurrentNode;
    size_t NodeLenth;

    Vector2 CursorPosition;
    TextAreaDisplayParams *DisplayParams;
} TextArea;

TextArea *CreateTextArea(TextAreaDisplayParams *DisplayParams);
TextArea *CreateTextAreaFromText(TextAreaDisplayParams *DisplayParams, char *text);

void DrawTextArea(TextArea *ta, Rectangle rec);
void UpdateTextArea(TextArea *ta, Rectangle rec);

char *GetText(TextArea *ta);
void FreeTextArea(TextArea *ta);

#endif // UI_ELEMENTS_H