/******************************************************************************
 * $Id$
 *
 * Copyright (c) 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 "dialogs.h"
#include "tr-core.h"

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

struct delete_data
{
    gboolean   delete_files;
    GSList   * torrent_ids;
    TrCore   * core;
};

static void
on_remove_dialog_response (GtkDialog * dialog, gint response, gpointer gdd)
{
    GSList * l;
    struct delete_data * dd = gdd;

    if (response == GTK_RESPONSE_ACCEPT)
        for (l=dd->torrent_ids; l!=NULL; l=l->next)
            gtr_core_remove_torrent (dd->core, GPOINTER_TO_INT (l->data), dd->delete_files);

    gtk_widget_destroy (GTK_WIDGET (dialog));
    g_slist_free (dd->torrent_ids);
    g_free (dd);
}

void
gtr_confirm_remove (GtkWindow  * parent,
                    TrCore     * core,
                    GSList     * torrent_ids,
                    gboolean     delete_files)
{
    GSList * l;
    GtkWidget * d;
    GString * primary_text;
    GString * secondary_text;
    struct delete_data * dd;
    int connected = 0;
    int incomplete = 0;
    const int count = g_slist_length (torrent_ids);

    if (!count)
        return;

    dd = g_new0 (struct delete_data, 1);
    dd->core = core;
    dd->torrent_ids = torrent_ids;
    dd->delete_files = delete_files;

    for (l=torrent_ids; l!=NULL; l=l->next)
    {
        const int id = GPOINTER_TO_INT (l->data);
        tr_torrent * tor = gtr_core_find_torrent (core, id);
        const tr_stat * stat = tr_torrentStat (tor);
        if (stat->leftUntilDone) ++incomplete;
        if (stat->peersConnected) ++connected;
    }

    primary_text = g_string_new (NULL);

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

    secondary_text = g_string_new (NULL);

    if (!incomplete && !connected)
    {
        g_string_assign (secondary_text, 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 == incomplete)
    {
        g_string_assign (secondary_text, ngettext ("This torrent has not finished downloading.",
                                                   "These torrents have not finished downloading.",
                                                   count));
    }
    else if (count == connected)
    {
        g_string_assign (secondary_text, ngettext ("This torrent is connected to peers.",
                                                   "These torrents are connected to peers.",
                                                   count));
    }
    else
    {
        if (connected)
            g_string_append (secondary_text, ngettext ("One of these torrents is connected to peers.",
                                                       "Some of these torrents are connected to peers.",
                                                       connected));
        if (connected && incomplete)
            g_string_append (secondary_text, "\n");

        if (incomplete)
            g_string_assign (secondary_text, ngettext ("One of these torrents has not finished downloading.",
                                                       "Some of these torrents have not finished downloading.",
                                                       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 (on_remove_dialog_response), dd);
    gtk_widget_show_all (d);

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