/*
 * instance.c -- GTK+ 2 melted gui
 * Copyright (C) 2012 Maksym Veremeyenko <verem@m1stereo.tv>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif

#ifdef HAVE_CONFIG_H
#  include <config.h>
#endif

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include <pthread.h>

#include "instance.h"
#include "ui.h"
#include "opts.h"
#include "timecode.h"
#include "player.h"

static gboolean on_main_window_delete_event( GtkWidget *widget, GdkEvent *event, gpointer user_data )
{
    g_print ("delete event occurred [start]\n");
    gdk_threads_leave();
    instance_release((instance_t*)user_data);
    gdk_threads_enter();
    g_print ("delete event occurred [finish]\n");

    return FALSE;
}

static void on_main_window_destroy( GtkWidget *widget, gpointer user_data )
{
    g_print ("destroy occurred\n");
    gtk_main_quit();
}

instance_t* instance_create(int argc, char** argv)
{
    int i, c;
    instance_t* app;

    /* prepare application instance */
    app = (instance_t*)malloc(sizeof(instance_t));
    memset(app, 0, sizeof(instance_t));

    /* load parameters from command line */
    if(!instance_opt(argc, argv, app) && app->players.count)
        app->window = ui_create(app);
    else
        instance_usage();

    return app;
};

void instance_destroy(instance_t* app)
{
    free(app);
};

void instance_init(instance_t* app)
{
    int i;
    pthread_mutexattr_t attr;

    pthread_mutexattr_init(&attr);
    pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);

    gtk_signal_connect( GTK_OBJECT( app->window ), "delete-event",
        GTK_SIGNAL_FUNC(on_main_window_delete_event), app);

    gtk_signal_connect( GTK_OBJECT( app->window ), "destroy",
        GTK_SIGNAL_FUNC(on_main_window_destroy), app);

#if 0
    gtk_widget_add_events(app->playlist_grid, GDK_BUTTON_PRESS_MASK);
    gtk_widget_add_events(app->playlist_grid, GDK_KEY_PRESS_MASK);
    gtk_signal_connect(GTK_OBJECT(app->playlist_grid), "key-press-event",
        GTK_SIGNAL_FUNC(on_playlist_grid_key), app);

    gtk_widget_add_events(app->library_grid, GDK_BUTTON_PRESS_MASK);
    gtk_widget_add_events(app->library_grid, GDK_KEY_PRESS_MASK);
    gtk_signal_connect(GTK_OBJECT(app->library_grid), "key-press-event",
        GTK_SIGNAL_FUNC(on_library_grid_key), app);

    gtk_signal_connect(GTK_OBJECT(app->playlist_grid), "button-press-event",
        GTK_SIGNAL_FUNC(on_playlist_grid_button), app);

    gtk_signal_connect(GTK_OBJECT(app->library_grid), "button-press-event",
        GTK_SIGNAL_FUNC(on_library_grid_button), app);
#endif

    /* create lock */
    pthread_mutex_init(&app->players.lock, &attr);
    pthread_mutex_init(&app->playlist.lock, &attr);
    pthread_mutex_init(&app->library.lock, &attr);
    pthread_mutexattr_destroy(&attr);

    /* run unit monitoring threads */
    for(i = 0; i < app->players.count; i++)
        player_run(app, i);

#if 0

    /* attach buttons click */
    for(i = 1; i < BUTTON_LAST; i++)
        gtk_signal_connect(GTK_OBJECT(app->buttons[i]), "clicked",
            GTK_SIGNAL_FUNC( on_button_click), app );

    /* load library */
    omnplay_library_load(app);
#endif

#if 0
    /* setup drag n drop source/target */
    static GtkTargetEntry drag_targets[] = { { (char*) "application/playlist_item_t", 0, 0 } };

    gtk_drag_source_set(app->library_grid, GDK_BUTTON1_MASK,
        drag_targets, 1, (GdkDragAction)(GDK_ACTION_COPY));

    gtk_drag_source_set(app->playlist_grid, GDK_BUTTON1_MASK,
        drag_targets, 1, (GdkDragAction)(GDK_ACTION_COPY | GDK_ACTION_MOVE));

    gtk_drag_dest_set(app->playlist_grid, (GtkDestDefaults)(GTK_DEST_DEFAULT_HIGHLIGHT | GTK_DEST_DEFAULT_DROP),
        drag_targets, 1, (GdkDragAction)(GDK_ACTION_COPY | GDK_ACTION_MOVE));

    g_signal_connect (app->library_grid, "drag_data_get", G_CALLBACK(library_grid_drag_data_get_cb), app);
    g_signal_connect (app->playlist_grid, "drag_data_get", G_CALLBACK(playlist_grid_drag_data_get_cb), app);
    g_signal_connect (app->library_grid, "drag_begin", G_CALLBACK(library_grid_drag_begin_cb), app);
    g_signal_connect (app->playlist_grid, "drag_begin", G_CALLBACK(playlist_grid_drag_begin_cb), app);
    g_signal_connect (app->playlist_grid, "drag_data_received", G_CALLBACK (playlist_grid_drag_data_received), app);
    g_signal_connect (app->playlist_grid, "drag_data_delete", G_CALLBACK (playlist_grid_drag_data_delete), app);
    g_signal_connect (app->playlist_grid, "drag_motion", G_CALLBACK (playlist_grid_drag_motion), app);
#endif
};

void instance_release(instance_t* app)
{
    int i;

    app->f_exit = 1;

    /* stop unit monitoring threads */
    for(i = 0; i < app->players.count; i++)
        player_stop(app, i);

    /* destroy lock */
    pthread_mutex_destroy(&app->players.lock);

    /* destroy lock */
    pthread_mutex_destroy(&app->playlist.lock);

#if 0
    /* load library */
    omnplay_library_save(app);
#endif

    /* destroy library lock */
    pthread_mutex_destroy(&app->library.lock);
};