/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2006 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org
*/
#include "SDL_config.h"

/* Handle the BeApp specific portions of the application */

#include <AppKit.h>
#include <storage/Path.h>
#include <storage/Entry.h>
#include <unistd.h>

#include "SDL_BeApp.h"
#include "SDL_thread.h"
#include "SDL_timer.h"
#include "SDL_error.h"

/* Flag to tell whether or not the Be application is active or not */
int SDL_BeAppActive = 0;
static SDL_Thread *SDL_AppThread = NULL;

static int
StartBeApp (void *unused)
{
    BApplication *App;

    App = new BApplication ("application/x-SDL-executable");

    App->Run ();
    delete App;
    return (0);
}

/* Initialize the Be Application, if it's not already started */
int
SDL_InitBeApp (void)
{
    /* Create the BApplication that handles appserver interaction */
    if (SDL_BeAppActive <= 0) {
        SDL_AppThread = SDL_CreateThread (StartBeApp, NULL);
        if (SDL_AppThread == NULL) {
            SDL_SetError ("Couldn't create BApplication thread");
            return (-1);
        }

        /* Change working to directory to that of executable */
        app_info info;
        if (B_OK == be_app->GetAppInfo (&info)) {
            entry_ref ref = info.ref;
            BEntry entry;
            if (B_OK == entry.SetTo (&ref)) {
                BPath path;
                if (B_OK == path.SetTo (&entry)) {
                    if (B_OK == path.GetParent (&path)) {
                        chdir (path.Path ());
                    }
                }
            }
        }

        do {
            SDL_Delay (10);
        }
        while ((be_app == NULL) || be_app->IsLaunching ());

        /* Mark the application active */
        SDL_BeAppActive = 0;
    }

    /* Increment the application reference count */
    ++SDL_BeAppActive;

    /* The app is running, and we're ready to go */
    return (0);
}

/* Quit the Be Application, if there's nothing left to do */
void
SDL_QuitBeApp (void)
{
    /* Decrement the application reference count */
    --SDL_BeAppActive;

    /* If the reference count reached zero, clean up the app */
    if (SDL_BeAppActive == 0) {
        if (SDL_AppThread != NULL) {
            if (be_app != NULL) {       /* Not tested */
                be_app->PostMessage (B_QUIT_REQUESTED);
            }
            SDL_WaitThread (SDL_AppThread, NULL);
            SDL_AppThread = NULL;
        }
        /* be_app should now be NULL since be_app has quit */
    }
}

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