/**
 * 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 3 of the License, or
 * 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, see <https://www.gnu.org/licenses/>.
 */

using Gtk;

namespace Yggtk {

    [GtkTemplate (ui = "/org/yggtk/yggtk/ui/app-window.ui")]
    public class AppWindow : ApplicationWindow {

        [GtkChild]
        private Gtk.Switch service_state_switch;

        [GtkChild]
        private Gtk.Entry peer_ip_entry;

        [GtkChild]
        private Gtk.Button save_config_button;

        [GtkCallback]
        private bool on_service_state_switch_state_set (bool state) {
            application.activate_action ("set-service-state", new Variant.boolean (state));
            return true;
        }

        [GtkCallback]
        private void on_peer_ip_entry_changed () {
            save_config_button.visible = peer_ip_entry.text.length > 0;
        }

        public void set_service_state (bool state) {
            service_state_switch.set_state (state);
        }

        public AppWindow (Gtk.Application application) {

            Object(application: application);

            save_config_button.clicked.connect (() => {
                string yggconf;
                Process.spawn_command_line_sync ("yggdrasil -genconf -json", out yggconf);
                parse (yggconf, peer_ip_entry);
            });

        }

        int parse (string yggconf, Entry ip) {

            try {

                var node = Json.from_string (yggconf);
                var obj = node.get_object ();
                obj.set_string_member ("Peers", ip.text);
                string ptext = Json.to_string (node,true);

                string file = "yggdrasil.conf";
                FileUtils.set_contents (file, ptext);

                Process.spawn_command_line_sync ("pkexec cp yggdrasil.conf /etc");

            } catch (Error e) {

                print ("Error parse JSON: %s\n", e.message);

            }

            return 0;

        }

    }

}