// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-

const Gio = imports.gi.Gio;
const GLib = imports.gi.GLib;
const Lang = imports.lang;
const Shell = imports.gi.Shell;
const Signals = imports.signals;

const ProviderIface = <interface name='org.freedesktop.realmd.Provider'>
    <property name="Name" type="s" access="read"/>
    <property name="Version" type="s" access="read"/>
    <property name="Realms" type="ao" access="read"/>
    <method name="Discover">
        <arg name="string" type="s" direction="in"/>
        <arg name="options" type="a{sv}" direction="in"/>
        <arg name="relevance" type="i" direction="out"/>
        <arg name="realm" type="ao" direction="out"/>
    </method>
</interface>;
const Provider = new Gio.DBusProxyClass({
    Name: 'RealmdProvider',
    Interface: ProviderIface,

    _init: function() {
        this.parent({ g_bus_type: Gio.BusType.SYSTEM,
                      g_name: 'org.freedesktop.realmd',
                      g_object_path: '/org/freedesktop/realmd' });
    }
});

const ServiceIface = <interface name="org.freedesktop.realmd.Service">
    <method name="Cancel">
        <arg name="operation" type="s" direction="in"/>
    </method>
    <method name="Release" />
    <method name="SetLocale">
        <arg name="locale" type="s" direction="in"/>
    </method>
    <signal name="Diagnostics">
        <arg name="data" type="s"/>
        <arg name="operation" type="s"/>
    </signal>
</interface>;
const Service = new Gio.DBusProxyClass({
    Name: 'RealmdService',
    Interface: ServiceIface,

    _init: function(service) {
        this.parent({ g_bus_type: Gio.BusType.SYSTEM,
                      g_name: 'org.freedesktop.realmd',
                      g_object_path: service });
    }
});

const RealmIface = <interface name="org.freedesktop.realmd.Realm">
    <property name="Name" type="s" access="read"/>
    <property name="Configured" type="s" access="read"/>
    <property name="Details" type="a(ss)" access="read"/>
    <property name="LoginFormats" type="as" access="read"/>
    <property name="LoginPolicy" type="s" access="read"/>
    <property name="PermittedLogins" type="as" access="read"/>
    <property name="SupportedInterfaces" type="as" access="read"/>
    <method name="ChangeLoginPolicy">
        <arg name="login_policy" type="s" direction="in"/>
        <arg name="permitted_add" type="as" direction="in"/>
        <arg name="permitted_remove" type="as" direction="in"/>
        <arg name="options" type="a{sv}" direction="in"/>
    </method>
    <method name="Deconfigure">
        <arg name="options" type="a{sv}" direction="in"/>
    </method>
</interface>;
const Realm = new Gio.DBusProxyClass({
    Name: 'RealmdRealm',
    Interface: RealmIface,

    _init: function(realm) {
        this.parent({ g_bus_type: Gio.BusType.SYSTEM,
                      g_name: 'org.freedesktop.realmd',
                      g_object_path: realm });
    }
});

const Manager = new Lang.Class({
    Name: 'Manager',

    _init: function(parentActor) {
        this._aggregateProvider = new Provider();
        this._aggregateProvider.init(null);
        this._realms = {};

        this._aggregateProvider.connect('g-properties-changed',
                                        Lang.bind(this, function(proxy, properties) {
                                            if ('Realms' in properties.deep_unpack())
                                                this._reloadRealms();
                                        }));
    },

    _reloadRealms: function() {
        let realmPaths = this._aggregateProvider.Realms;

        if (!realmPaths)
            return;

        for (let i = 0; i < realmPaths.length; i++) {
            let realm = new Realm(realmPaths[i]);
            realm.init_async(GLib.PRIORITY_DEFAULT, null, Lang.bind(this, this._onRealmLoaded));
        }
    },

    _reloadRealm: function(realm) {
        if (!realm.Configured) {
            if (this._realms[realm.get_object_path()])
                delete this._realms[realm.get_object_path()];

            return;
        }

        this._realms[realm.get_object_path()] = realm;

        this._updateLoginFormat();
    },

    _onRealmLoaded: function(realm, result) {
        try {
            realm.init_finish(result);
        } catch(e) { return; }

        this._reloadRealm(realm);

        realm.connect('g-properties-changed',
                      Lang.bind(this, function(proxy, properties) {
                                if ('Configured' in properties.deep_unpack())
                                    this._reloadRealm();
                                }));
    },

    _updateLoginFormat: function() {
        let newLoginFormat;

        for (let realmPath in this._realms) {
            let realm = this._realms[realmPath];
            if (realm.LoginFormats && realm.LoginFormats.length > 0) {
                newLoginFormat = realm.LoginFormats[0];
                break;
            }
        }

        if (this._loginFormat != newLoginFormat) {
            this._loginFormat = newLoginFormat;
            this.emit('login-format-changed', newLoginFormat);
        }
    },

    get loginFormat() {
        if (this._loginFormat !== undefined)
            return this._loginFormat;

        this._updateLoginFormat();

        return this._loginFormat;
    }
});
Signals.addSignalMethods(Manager.prototype)