/*
 * This file Copyright (C) 2008-2010 Mnemosyne LLC
 *
 * This file is licensed by the GPL version 2.  Works owned by the
 * Transmission project are granted a special exemption to clause 2(b)
 * so that the bulk of its code can remain under the MIT license.
 * This exemption does not extend to derived works not owned by
 * the Transmission project.
 *
 * $Id$
 */

#include <string.h>

#ifdef HAVE_LIBCANBERRA
 #include <canberra-gtk.h>
#endif

#ifdef HAVE_GIO
 #include <gio/gio.h>
#endif

#include <glib/gi18n.h>
#include "actions.h" /* NOTIFICATION_ICON */
#include "conf.h"
#include "notify.h"
#include "tr-prefs.h"
#include "util.h"

#ifndef HAVE_LIBNOTIFY

void tr_notify_init( void ) { }
void tr_notify_send( TrTorrent * tor UNUSED ) { }
void tr_notify_added( const char * name UNUSED ) { }

#else
 #include <libnotify/notify.h>

void
tr_notify_init( void )
{
    notify_init( "Transmission" );
}

static void
notifyCallback( NotifyNotification * n UNUSED,
                const char *           action,
                gpointer               gdata )
{
    TrTorrent * gtor = TR_TORRENT( gdata );

    if( !strcmp( action, "folder" ) )
    {
        tr_torrent_open_folder( gtor );
    }
    else if( !strcmp( action, "file" ) )
    {
        tr_torrent * tor = tr_torrent_handle( gtor );
        const tr_info * info = tr_torrent_info( gtor );
        if( tor && info )
        {
            const char * dir = tr_torrentGetDownloadDir( tor );
            char * path = g_build_filename( dir, info->files[0].name, NULL );
            gtr_open_file( path );
            g_free( path );
        }
    }
}

static gboolean
can_support_actions( void )
{
    static gboolean supported;
    static gboolean have_checked = FALSE;

    if( !have_checked )
    {
        GList * c;
        GList * caps = notify_get_server_caps( );

        have_checked = TRUE;

        for( c=caps; c && !supported; c=c->next )
            supported = !strcmp( "actions", (char*)c->data );

        g_list_foreach( caps, (GFunc)g_free, NULL );
        g_list_free( caps );
    }

    return supported;
}

static void
addIcon( NotifyNotification * notify )
{
    int size = 32;
    GtkIconTheme * theme;
    GdkPixbuf * icon;

    gtk_icon_size_lookup( GTK_ICON_SIZE_DIALOG, &size, &size );
    theme = gtk_icon_theme_get_default( );
    icon = gtk_icon_theme_load_icon( theme, NOTIFICATION_ICON, size, 0, NULL );

    if( icon != NULL )
    {
        notify_notification_set_icon_from_pixbuf( notify, icon );
        g_object_unref( icon );
    }
}

void
tr_notify_send( TrTorrent *tor )
{
#ifdef HAVE_LIBCANBERRA
    if( pref_flag_get( PREF_KEY_PLAY_DOWNLOAD_COMPLETE_SOUND ) )
    {
        /* play the sound, using sounds from the naming spec */
        ca_context_play( ca_gtk_context_get (), 0,
                         CA_PROP_EVENT_ID, "complete-download",
                         CA_PROP_APPLICATION_NAME, g_get_application_name,
                         CA_PROP_EVENT_DESCRIPTION, _("Download complete"),
                         NULL);
    }
#endif

    if( pref_flag_get( PREF_KEY_SHOW_DESKTOP_NOTIFICATION ) )
    {
        const tr_info * info = tr_torrent_info( tor );
        NotifyNotification * n;

        n = notify_notification_new( _( "Torrent Complete" ),
                                     info->name,
                                     NULL, NULL );
        addIcon( n );

        if( can_support_actions( ) )
        {
            if( info->fileCount == 1 )
                notify_notification_add_action(
                    n, "file", _( "Open File" ),
                    NOTIFY_ACTION_CALLBACK( notifyCallback ), tor,
                    NULL );

            notify_notification_add_action(
                n, "folder", _( "Open Folder" ),
                NOTIFY_ACTION_CALLBACK( notifyCallback ), tor, NULL );
        }

        notify_notification_show( n, NULL );
    }
}

void
tr_notify_added( const char * name )
{
    if( pref_flag_get( PREF_KEY_SHOW_DESKTOP_NOTIFICATION ) )
    {
        NotifyNotification * n = notify_notification_new(
            _( "Torrent Added" ), name, NULL, NULL );
        addIcon( n );
        notify_notification_set_timeout( n, NOTIFY_EXPIRES_DEFAULT );
        notify_notification_show( n, NULL );
    }
}

#endif