// -*- Mode: js; indent-tabs-mode: nil; c-basic-offset: 4; tab-width: 4 -*-

//

// Copyright (c) 2013 Giovanni Campagna <scampa.giovanni@gmail.com>

// Copyright (C) 2015  Daiki Ueno <dueno@src.gnome.org>

//

// Gnome Weather 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.

//

// Gnome Weather 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 Gnome Weather; if not, write to the Free Software Foundation,

// Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

const Gdk = imports.gi.Gdk;

const Gio = imports.gi.Gio;

const GLib = imports.gi.GLib;

const Lang = imports.lang;

const Gc = imports.gi.Gc;

const Util = imports.util;

const MAX_SEARCH_RESULTS = 100

const SearchProviderInterface = Gio.resources_lookup_data('/org/gnome/shell/ShellSearchProvider2.xml', 0).toArray().toString();

const SearchProvider = new Lang.Class({

    Name: 'CharactersSearchProvider',

    _init: function(application) {

        this._app = application;

        this._impl = Gio.DBusExportedObject.wrapJSObject(SearchProviderInterface, this);

        this._cancellable = new Gio.Cancellable();

    },

    export: function(connection, path) {

        return this._impl.export(connection, path);

    },

    unexport: function(connection) {

        return this._impl.unexport_from_connection(connection);

    },

    _runQuery: function(keywords, invocation) {

        this._cancellable.cancel();

        this._cancellable.reset();

        let upper = keywords.map(String.toUpperCase);

        let criteria = Gc.SearchCriteria.new_keywords(upper);

        let context = new Gc.SearchContext({ criteria: criteria,

                                             flags: Gc.SearchFlag.WORD });

        context.search(

            MAX_SEARCH_RESULTS,

            this._cancellable,

            Lang.bind(this, function(source_object, res, user_data) {

                let characters = [];

                try {

                    let result = context.search_finish(res);

                    characters = Util.searchResultToArray(result);

                } catch (e) {

                    log("Failed to search by keywords: " + e.message);

                }

                invocation.return_value(new GLib.Variant('(as)', [characters]));

                this._app.release();

            }));

    },

    GetInitialResultSetAsync: function(params, invocation) {

        this._app.hold();

        this._runQuery(params[0], invocation);

    },

    GetSubsearchResultSetAsync: function(params, invocation) {

        this._app.hold();

        this._runQuery(params[1], invocation);

    },

    GetResultMetas: function(identifiers) {

        this._app.hold();

        let ret = [];

        for (let i = 0; i < identifiers.length; i++) {

            let character = identifiers[i];

            let codePoint = Util.toCodePoint(character);

            let codePointHex = codePoint.toString(16).toUpperCase();

            let name = Gc.character_name(character);

            if (name == null)

                name = _("Unknown character name");

            else

                name = Util.capitalize(name);

            let summary = _("U+%s, %s: %s").format(codePointHex,

                                                   character,

                                                   name);

            ret.push({ name: new GLib.Variant('s', name),

                       id: new GLib.Variant('s', identifiers[i]),

                       description: new GLib.Variant('s', summary),

                       icon: (new Gio.ThemedIcon({ name: 'gnome-characters' })).serialize(),

                       clipboardText: new GLib.Variant('s', character)

                     });

        }

        this._app.release();

        return ret;

    },

    ActivateResult: function(id, terms, timestamp) {

        let clipboard = Gc.gtk_clipboard_get();

        clipboard.set_text(id, -1);

    },

    _getPlatformData: function(timestamp) {

        let display = Gdk.Display.get_default();

        let context = display.get_app_launch_context();

        context.set_timestamp(timestamp);

        let app = Gio.DesktopAppInfo.new('org.gnome.Characters.desktop');

        let id = context.get_startup_notify_id(app, []);

        return {'desktop-startup-id': new GLib.Variant('s', id) };

    },

    _activateAction: function(action, parameter, timestamp) {

        let wrappedParam;

        if (parameter)

            wrappedParam = [parameter];

        else

            wrappedParam = [];

        Gio.DBus.session.call('org.gnome.Characters',

                              '/org/gnome/Characters',

                              'org.freedesktop.Application',

                              'ActivateAction',

                              new GLib.Variant('(sava{sv})', [action, wrappedParam,

                                                              this._getPlatformData(timestamp)]),

                              null,

                              Gio.DBusCallFlags.NONE,

                              -1, null, Lang.bind(this, function(connection, result) {

                                  try {

                                      connection.call_finish(result);

                                  } catch(e) {

                                      log('Failed to launch application: ' + e.message);

                                  }

                                  this._app.release();

                              }));

    },

    LaunchSearch: function(terms, timestamp) {

        this._activateAction('search', new GLib.Variant('as', terms),

                             timestamp);

    }

});