/******************************************************************************
 * $Id: dialogs.c 11567 2010-12-22 03:12:47Z charles $
 *
 * Copyright (c) 2005-2008 Transmission authors and contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *****************************************************************************/

#include <gtk/gtk.h>
#include <glib/gi18n.h>

#include <libtransmission/transmission.h>

#include "conf.h"
#include "dialogs.h"
#include "hig.h"
#include "tr-core.h"
#include "tr-prefs.h"

/***
****
***/

struct quitdata
{
    TrCore *          core;
    callbackfunc_t    func;
    void *            cbdata;
    GtkWidget *       dontask;
};

static void
quitresp( GtkWidget * widget,
          int         response,
          gpointer    data )
{
    struct quitdata * stuff = data;
    GtkToggleButton * tb = GTK_TOGGLE_BUTTON( stuff->dontask );

    tr_core_set_pref_bool( stuff->core,
                          PREF_KEY_ASKQUIT,
                          !gtk_toggle_button_get_active( tb ) );

    if( response == GTK_RESPONSE_ACCEPT )
        stuff->func( stuff->cbdata );

    g_free( stuff );
    gtk_widget_destroy( widget );
}

GtkWidget *
gtr_confirm_quit( GtkWindow *    parent,
                  TrCore *       core,
                  callbackfunc_t func,
                  void *         cbdata )
{
    struct quitdata * stuff;
    GtkWidget *       w;
    GtkWidget *       wind;
    GtkWidget *       dontask;

    stuff          = g_new( struct quitdata, 1 );
    stuff->func    = func;
    stuff->cbdata  = cbdata;
    stuff->core    = core;

    wind = gtk_message_dialog_new_with_markup(
         parent,
        GTK_DIALOG_DESTROY_WITH_PARENT,
        GTK_MESSAGE_WARNING,
        GTK_BUTTONS_NONE,
        _(
            "<big><b>Quit Transmission?</b></big>" ) );

    gtk_dialog_add_button( GTK_DIALOG( wind ), GTK_STOCK_CANCEL,
                                               GTK_RESPONSE_CANCEL );
    w = gtk_dialog_add_button( GTK_DIALOG( wind ), GTK_STOCK_QUIT,
                                                   GTK_RESPONSE_ACCEPT );
    gtk_dialog_set_default_response( GTK_DIALOG( wind ),
                                     GTK_RESPONSE_ACCEPT );
    gtk_dialog_set_alternative_button_order( GTK_DIALOG( wind ),
                                             GTK_RESPONSE_ACCEPT,
                                             GTK_RESPONSE_CANCEL,
                                             -1 );
    dontask = gtk_check_button_new_with_mnemonic( _( "_Don't ask me again" ) );
    stuff->dontask = dontask;

    gtr_dialog_set_content( GTK_DIALOG( wind ), dontask );

    g_signal_connect( G_OBJECT( wind ), "response",
                      G_CALLBACK( quitresp ), stuff );
    gtk_widget_grab_focus( w );

    gtk_widget_show( wind );
    return wind;
}

/***
****
***/

struct DeleteData
{
    gboolean    delete_files;
    GSList *    torrents;
    TrCore *    core;
};

static void
removeTorrents( struct DeleteData * data )
{
    GSList * l;

    for( l = data->torrents; l != NULL; l = l->next )
        tr_core_remove_torrent( data->core, l->data, data->delete_files );
    g_slist_free( data->torrents );
    data->torrents = NULL;
}

static void
removeResponse( GtkDialog * dialog,
                gint        response,
                gpointer    gdata )
{
    struct DeleteData * data = gdata;

    if( response == GTK_RESPONSE_ACCEPT )
        removeTorrents( data );

    gtk_widget_destroy( GTK_WIDGET( dialog ) );
    g_slist_free( data->torrents );
    g_free( data );
}

struct count_data
{
    int incomplete;
    int connected;
};

static void
countBusyTorrents( gpointer gtor, gpointer gdata )
{
    const tr_stat * stat = tr_torrent_stat( gtor );
    struct count_data * data = gdata;

    if( stat->leftUntilDone ) ++data->incomplete;
    if( stat->peersConnected ) ++data->connected;
}

void
gtr_confirm_remove( GtkWindow  * parent,
                    TrCore     * core,
                    GSList     * torrents,
                    gboolean     delete_files )
{
    GtkWidget *         d;
    const int           count = g_slist_length( torrents );
    struct count_data   counts;
    GString           * primary_text;
    GString           * secondary_text;
    struct DeleteData * dd;

    if( !count )
        return;

    dd = g_new0( struct DeleteData, 1 );
    dd->core = core;
    dd->torrents = torrents;
    dd->delete_files = delete_files;

    counts.incomplete = 0;
    counts.connected = 0;
    g_slist_foreach( torrents, countBusyTorrents, &counts );

    primary_text = g_string_new( NULL );

    if( !delete_files )
    {
        g_string_printf( primary_text, gtr_ngettext( "Remove torrent?",
                                                     "Remove %d torrents?",
                                                     count ), count );
    }
    else
    {
        g_string_printf( primary_text, gtr_ngettext( "Delete this torrent's downloaded files?",
                                                     "Delete these %d torrents' downloaded files?",
                                                     count ), count );
    }

    secondary_text = g_string_new( NULL );

    if( !counts.incomplete && !counts.connected )
    {
        g_string_assign( secondary_text, gtr_ngettext(
                "Once removed, continuing the transfer will require the torrent file or magnet link.",
                "Once removed, continuing the transfers will require the torrent files or magnet links.",
                count ) );
    }
    else if( count == counts.incomplete )
    {
        g_string_assign( secondary_text, gtr_ngettext( "This torrent has not finished downloading.",
                                                       "These torrents have not finished downloading.",
                                                       count ) );
    }
    else if( count == counts.connected )
    {
        g_string_assign( secondary_text, gtr_ngettext( "This torrent is connected to peers.",
                                                       "These torrents are connected to peers.",
                                                       count ) );
    }
    else
    {
        if( counts.connected )
            g_string_append( secondary_text, gtr_ngettext( "One of these torrents is connected to peers.",
                                                           "Some of these torrents are connected to peers.",
                                                       counts.connected ) );
        if( counts.connected && counts.incomplete )
            g_string_append( secondary_text, "\n" );

        if( counts.incomplete )
            g_string_assign( secondary_text, gtr_ngettext( "One of these torrents has not finished downloading.",
                                                           "Some of these torrents have not finished downloading.",
                                                       counts.incomplete ) );
    }

    d = gtk_message_dialog_new_with_markup( parent,
                                            GTK_DIALOG_DESTROY_WITH_PARENT,
                                            GTK_MESSAGE_QUESTION,
                                            GTK_BUTTONS_NONE,
                                            "<big><b>%s</b></big>",
                                            primary_text->str );
    if( secondary_text->len )
        gtk_message_dialog_format_secondary_markup( GTK_MESSAGE_DIALOG( d ),
                                                    "%s", secondary_text->str );
    gtk_dialog_add_buttons( GTK_DIALOG( d ),
                            GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
                            ( delete_files ? GTK_STOCK_DELETE :
                              GTK_STOCK_REMOVE ), GTK_RESPONSE_ACCEPT,
                            NULL );
    gtk_dialog_set_default_response( GTK_DIALOG ( d ),
                                     GTK_RESPONSE_CANCEL );
    gtk_dialog_set_alternative_button_order( GTK_DIALOG( d ),
                                             GTK_RESPONSE_ACCEPT,
                                             GTK_RESPONSE_CANCEL,
                                             -1 );
    g_signal_connect( d, "response", G_CALLBACK( removeResponse ), dd );
    gtk_widget_show_all( d );

    g_string_free( primary_text, TRUE );
    g_string_free( secondary_text, TRUE );
}
