#include <exec/types.h>          // For MorphOS exec types
#include <libraries/mui.h>       // For MUI specific definitions
#include <proto/exec.h>          // For MorphOS exec functions
#include <proto/intuition.h>     // For Intuition functions
#include <proto/muimaster.h>     // For MUI functions
#include <stdio.h>               // For printf function

/* Function prototypes */
static void cleanup(void);       // Function to clean up resources
BOOL init(void);                 // Function to initialize the application

/* MUI application object */
Object *app;                     // Global pointer to our application object
struct Library *MUIMasterBase;   // Pointer to the MUI master library

/* Custom methods */
#define ID_QUIT       1          // ID for quit action
#define ID_ABOUT      2          // ID for about action
#define ID_ICONIFY    3          // ID for iconify action

int main(void)
{
    // Initialize the application
    if (!init()) return 20;      // If initialization fails, exit with error code 20

    ULONG signals = 0;           // For storing signal bits
    BOOL running = TRUE;         // Flag to control the main loop

    // Main event loop
    while (running)
    {
        // Handle input events, store signals in 'signals'
        ULONG ret = DoMethod(app, MUIM_Application_NewInput, &signals);

        // Handle return values from input method
        switch(ret)
        {
            case ID_QUIT:
                running = FALSE;     // Exit the main loop
                break;

            case ID_ABOUT:
                // Show an about box
                MUI_RequestA(app, NULL, 0, "About", "OK", "Simple MUI ApplicationnCreated as an example", NULL);
                break;

            case ID_ICONIFY:
                // Iconify the application
                set(app, MUIA_Application_Iconified, TRUE);
                break;

            case MUIV_Application_ReturnID_Quit:
                // Ask for confirmation before quitting
                if (MUI_RequestA(app, NULL, 0, "Quit", "_Yes|_No", "Are you sure you want to quit?", NULL) == 1)
                    running = FALSE;
                break;
        }

        // If we're still running and have signals to wait for
        if (running && signals)
        {
            // Wait for signals, including the break signal
            signals = Wait(signals | SIGBREAKF_CTRL_C);
            if (signals & SIGBREAKF_CTRL_C) break;  // Break if Ctrl-C is pressed
        }
    }

    // Clean up resources
    cleanup();
    return 0;
}

BOOL init(void)
{
    // Open the MUI master library
    MUIMasterBase = OpenLibrary("muimaster.library", 0);
    if (!MUIMasterBase)
    {
        printf("Can't open muimaster.libraryn");
        return FALSE;
    }

    // Declare objects for our GUI elements
    Object *window, *quit_button, *about_button, *iconify_button;

    // Create the application object and GUI
    app = ApplicationObject,
        // Set application attributes
        MUIA_Application_Title      , "SimpleApp",
        MUIA_Application_Version    , "$VER: SimpleApp 1.0 (01.01.2023)",
        MUIA_Application_Copyright  , "©2023 by Your Name",
        MUIA_Application_Author     , "Your Name",
        MUIA_Application_Description, "A simple MUI application example",
        MUIA_Application_Base       , "SIMPLEAPP",

        // Create a window
        SubWindow, window = WindowObject,
            MUIA_Window_Title, "Simple MUI Application",
            MUIA_Window_ID   , MAKE_ID('M','A','I','N'),
            WindowContents, VGroup,
                Child, HGroup,
                    Child, quit_button = SimpleButton("Quit"),
                    Child, about_button = SimpleButton("About"),
                    Child, iconify_button = SimpleButton("Iconify"),
                End,
            End,
        End,
    End;

    // Check if application object was created successfully
    if (!app)
    {
        printf("Can't create applicationn");
        cleanup();
        return FALSE;
    }

    // Set up notifications

    // Notify when window close gadget is clicked
    DoMethod(window, MUIM_Notify, MUIA_Window_CloseRequest, TRUE,
        app, 2, MUIM_Application_ReturnID, MUIV_Application_ReturnID_Quit);

    // Notify when Quit button is clicked
    DoMethod(quit_button, MUIM_Notify, MUIA_Pressed, FALSE,
        app, 2, MUIM_Application_ReturnID, ID_QUIT);

    // Notify when About button is clicked
    DoMethod(about_button, MUIM_Notify, MUIA_Pressed, FALSE,
        app, 2, MUIM_Application_ReturnID, ID_ABOUT);

    // Notify when Iconify button is clicked
    DoMethod(iconify_button, MUIM_Notify, MUIA_Pressed, FALSE,
        app, 2, MUIM_Application_ReturnID, ID_ICONIFY);

    // Open the window
    set(window, MUIA_Window_Open, TRUE);

    return TRUE;
}

void cleanup(void)
{
    // Dispose of the application object if it exists
    if (app) MUI_DisposeObject(app);
    // Close the MUI master library if it was opened
    if (MUIMasterBase) CloseLibrary(MUIMasterBase);
}