#pragma once

#include <the_Foundation/rect.h>
#include <the_Foundation/vec2.h>
#include <SDL_events.h>
#include <ctype.h>

iDeclareType(Click)
iDeclareType(Widget)
iDeclareType(LabelWidget)

iBool           isCommand_UserEvent (const SDL_Event *, const char *cmd);
const char *    command_UserEvent   (const SDL_Event *);

iLocalDef iBool isResize_UserEvent(const SDL_Event *d) {
    return isCommand_UserEvent(d, "window.resized");
}

#if defined (iPlatformApple)
#   define KMOD_PRIMARY     KMOD_GUI
#   define KMOD_SECONDARY   KMOD_CTRL
#else
#   define KMOD_PRIMARY     KMOD_CTRL
#   define KMOD_SECONDARY   KMOD_GUI
#endif

int     keyMods_Sym         (int kmods); /* shift, alt, control, or gui */

/*-----------------------------------------------------------------------------------------------*/

enum iClickResult {
    none_ClickResult,
    started_ClickResult,
    drag_ClickResult,
    finished_ClickResult,
    aborted_ClickResult,
    double_ClickResult,
};

struct Impl_Click {
    iBool    isActive;
    int      button;
    iWidget *bounds;
    iInt2    startPos;
    iInt2    pos;
};

void                init_Click          (iClick *, iAnyObject *widget, int button);
enum iClickResult   processEvent_Click  (iClick *, const SDL_Event *event);
void                cancel_Click        (iClick *);

iBool               isMoved_Click       (const iClick *);
iInt2               pos_Click           (const iClick *);
iRect               rect_Click          (const iClick *);
iInt2               delta_Click         (const iClick *);

/*-----------------------------------------------------------------------------------------------*/

iWidget *       makePadding_Widget  (int size);
iLabelWidget *  makeHeading_Widget  (const char *text);
iWidget *       makeHDiv_Widget     (void);
iWidget *       makeVDiv_Widget     (void);
iWidget *       addAction_Widget    (iWidget *parent, int key, int kmods, const char *command);

/*-----------------------------------------------------------------------------------------------*/

iWidget *       makeToggle_Widget       (const char *id);
void            setToggle_Widget        (iWidget *toggle, iBool active);

/*-----------------------------------------------------------------------------------------------*/

iDeclareType(MenuItem)

struct Impl_MenuItem {
    const char *label;
    int key;
    int kmods;
    const char *command;
};

iWidget *   makeMenu_Widget     (iWidget *parent, const iMenuItem *items, size_t n); /* returns no ref */
void        openMenu_Widget     (iWidget *, iInt2 coord);
void        closeMenu_Widget    (iWidget *);

int         checkContextMenu_Widget   (iWidget *, const SDL_Event *ev); /* see macro below */

#define processContextMenuEvent_Widget(menu, sdlEvent) \
    for (const int result = checkContextMenu_Widget((menu), (sdlEvent));;) { \
        if (result) return result >> 1; \
        break; \
    }

iLabelWidget *  makeMenuButton_LabelWidget  (const char *label, const iMenuItem *items, size_t n);

/*-----------------------------------------------------------------------------------------------*/

iWidget *   makeTabs_Widget         (iWidget *parent);
void        appendTabPage_Widget    (iWidget *tabs, iWidget *page, const char *label, int key, int kmods);
void        prependTabPage_Widget   (iWidget *tabs, iWidget *page, const char *label, int key, int kmods);
iWidget *   tabPage_Widget          (iWidget *tabs, size_t index);
iWidget *   removeTabPage_Widget    (iWidget *tabs, size_t index); /* returns the page */
void        showTabPage_Widget      (iWidget *tabs, const iWidget *page);
void        setTabPageLabel_Widget  (iWidget *tabs, const iAnyObject *page, const iString *label);
const iWidget *currentTabPage_Widget(const iWidget *tabs);
size_t      tabCount_Widget         (const iWidget *tabs);

/*-----------------------------------------------------------------------------------------------*/

iWidget *   makeSheet_Widget        (const char *id);
void        centerSheet_Widget      (iWidget *sheet);

void        makeFilePath_Widget     (iWidget *parent, const iString *initialPath, const char *title,
                                     const char *acceptLabel, const char *command);
iWidget *   makeValueInput_Widget   (iWidget *parent, const iString *initialValue, const char *title,
                                     const char *prompt, const char *acceptLabel, const char *command);
void        updateValueInput_Widget (iWidget *, const char *title, const char *prompt);
void        makeMessage_Widget      (const char *title, const char *msg);
iWidget *   makeQuestion_Widget     (const char *title, const char *msg,
                                     const char *labels[], const char *commands[], size_t count);
iWidget *   makePreferences_Widget  (void);