//import { Random } from 'meteor/random';

if (!Accounts.saml) {
    Accounts.saml = {};
}

Accounts.saml.initiateLogin = function (options, callback, dimensions) {
    // default dimensions that worked well for facebook and google
    var popup = openCenteredPopup(
        Meteor.absoluteUrl("_saml/authorize/" + options.provider + "/" + options.credentialToken), (dimensions && dimensions.width) || 650, (dimensions && dimensions.height) || 500);

    var checkPopupOpen = setInterval(function () {
        try {
            // Fix for #328 - added a second test criteria (popup.closed === undefined)
            // to humour this Android quirk:
            // http://code.google.com/p/android/issues/detail?id=21061
            var popupClosed = popup.closed || popup.closed === undefined;
        } catch (e) {
            // For some unknown reason, IE9 (and others?) sometimes (when
            // the popup closes too quickly?) throws "SCRIPT16386: No such
            // interface supported" when trying to read 'popup.closed'. Try
            // again in 100ms.
            return;
        }

        if (popupClosed) {
            clearInterval(checkPopupOpen);
            callback(options.credentialToken);
        }
    }, 100);
};


var openCenteredPopup = function (url, width, height) {
    var newwindow;

    if (typeof cordova !== 'undefined' && typeof cordova.InAppBrowser !== 'undefined') {
        newwindow = cordova.InAppBrowser.open(url, '_blank');
        newwindow.closed = false;

        var intervalId = setInterval(function () {
            newwindow.executeScript({
                code: "document.getElementsByTagName('script')[0].textContent"
            }, function (data) {
                if (data && data.length > 0 && data[0] == 'window.close()') {
                    newwindow.close();
                    newwindow.closed = true;
                }
            });
        }, 100);

        newwindow.addEventListener('exit', function () {
            clearInterval(intervalId);
        });
    } else {
        var screenX = typeof window.screenX !== 'undefined' ? window.screenX : window.screenLeft;
        var screenY = typeof window.screenY !== 'undefined' ? window.screenY : window.screenTop;
        var outerWidth = typeof window.outerWidth !== 'undefined' ? window.outerWidth : document.body.clientWidth;
        var outerHeight = typeof window.outerHeight !== 'undefined' ? window.outerHeight : (document.body.clientHeight - 22);
        // XXX what is the 22?

        // Use `outerWidth - width` and `outerHeight - height` for help in
        // positioning the popup centered relative to the current window
        var left = screenX + (outerWidth - width) / 2;
        var top = screenY + (outerHeight - height) / 2;
        var features = ('width=' + width + ',height=' + height +
            ',left=' + left + ',top=' + top + ',scrollbars=yes');

        var newwindow = window.open(url, 'Login', features);
        if (newwindow.focus)
            newwindow.focus();
    }

    return newwindow;
};

Meteor.loginWithSaml = function (options, callback) {
    options = options || {};
    var credentialToken = Random.id();
    options.credentialToken = credentialToken;

    Accounts.saml.initiateLogin(options, function (error, result) {
        Accounts.callLoginMethod({
            methodArguments: [{
                saml: true,
                credentialToken: credentialToken
            }],
            userCallback: callback
        });
    });
};

Meteor.logoutWithSaml = function (options, callback) {
    //Accounts.saml.idpInitiatedSLO(options, callback); 
    Meteor.call("samlLogout", options.provider, function (err, result) {
        console.log("LOC " + result);
                // A nasty bounce: 'result' has the SAML LogoutRequest but we need a proper 302 to redirected from the server.
        //window.location.replace(Meteor.absoluteUrl("_saml/sloRedirect/" + options.provider + "/?redirect="+result));
        window.location.replace(Meteor.absoluteUrl("_saml/sloRedirect/" + options.provider + "/?redirect="+encodeURIComponent(result)));
    });


};