define(["../session", "dijit/_WidgetBase", "dijit/_TemplatedMixin", "dijit/_WidgetsInTemplateMixin", "dijit/registry", "dojo/_base/declare", "dojo/_base/event", "dojo/_base/lang", "dojo/on", "dojo/when", "dojo/text!./templates/LoginDialogWrapper.html"], function(session, _WidgetBase, _TemplatedMixin, _WidgetsInTemplateMixin, registry, declare, event, lang, on, when, template) {
    return declare([_WidgetBase, _TemplatedMixin, _WidgetsInTemplateMixin], {
        templateString: template,
        _fx: null,
        startup: function() {
            if (this._started) { return; }
            this.inherited(arguments);
            this.own(on(session, 'change', lang.hitch(this, 'onUserChange')));
            this.own(this.loginForm.on('change', lang.hitch(this, '_handleFormChange')));
            this.onUserChange(session.get());
        },
        _handleFormChange: function() {
            this.infoNode.innerHTML = "";
        },
        onLogin: function(evt) {
            this.infoNode.innerHTML = "";
            if (this.loginForm.validate()) {
                var value = this.loginForm.get('value');
                session.login(value.username, value.password)
                .then(lang.hitch(this,function() {
                    this._fx = when(this._fx).then(lang.hitch(this.loginDialog,'hide'));
                }), lang.hitch(this,function() {
                    this.infoNode.innerHTML = "Login failed.";
                }));
            }
            if (evt) { event.stop(evt); }
            return false;
        },
        onUserChange: function(user) {
            this.infoNode.innerHTML = "";
            this._fx = when(this._fx).then(lang.hitch(this.loginDialog,function() {
                return user ? this.hide() : this.show();
            }));
        }
    });
});