'use strict';

window.addEventListener('load', function (e) {

    var tokenFields = document.getElementsByName('as_token');
    if (tokenFields.length === 0) {
        console.error('No tokenfield found!')
    }

    var runTests = function () {

        var i;

        // test for loaded images (bots don't download them)
        var images = document.querySelectorAll('img');
        var notLoadedCount = 0;
        for (i = 0; i < images.length; i++) {
            if (!images[i].width || !images[i].height) {
                notLoadedCount++;
            }
        }
        if (images.length && notLoadedCount / images.length > 0.5) {
            return false;
        }

        // TODO other tests?

        return true;
    };

    if (runTests()) {
        for (var i = 0; i < tokenFields.length; i++) {
            tokenFields[i].value = '/XM89fe2zVxF+Ahjwx5rfw==';
        }
    } else {
        console.error('Not a human');
    }

});