var form_url = '//forms.strabag.at/form/V-2bqjspLKs103yb9i1AJc-Q3psxaycU5DF1DiVSlfM';
var form_complete_url = '//forms.strabag.at/V-2bqjspLKs103yb9i1AJc-Q3psxaycU5DF1DiVSlfM/complete';
var action_url = '//forms.strabag.at/V-2bqjspLKs103yb9i1AJc-Q3psxaycU5DF1DiVSlfM';
var target_div;
var _load_callback, _complete_callback;

if (!window.jQuery) {
    var head = document.getElementsByTagName('head')[0];
    var script = document.createElement('script');
    script.type = 'text/javascript';
    script.src = '//code.jquery.com/jquery-latest.min.js';
    head.appendChild(script);
}

function defer(method)
{
    if (window.jQuery)
    {
        method();
    } else {
        setTimeout(function() { defer(method) }, 50);
    }
}

function view_form(target_id, load_callback, complete_callback)
{
    _load_callback = load_callback;
    _complete_callback = complete_callback;
    defer(function(){ _view_form(target_id); })
}

function _view_form(target_id)
{
    target_div = $('#' + target_id);
    target_div.load(form_url,  _view_form_complete);
}

function _view_form_complete()
{
    target_div.find('form').submit(_form_submit);
    if (_load_callback){ _load_callback(); }
}

function submit_form(token)
{
    _form_submit();
}

function _form_submit(e)
{
    e.preventDefault();
    if (target_div.find('#recaptcha').length)
    {
        grecaptcha.execute();
    }
    else
    {
        form_post();
    }

}

function form_post()
{
    target_div.children().hide();
    target_div.append($('<img class="spinner my-5 mx-auto d-block" src="//forms.strabag.at/static/img/spinner.svg">'));
    var formData = new FormData(target_div.find('form')[0]);

    $.ajax({
        url: action_url,
        type: 'POST',
        data: formData,
        processData: false,
        contentType: false
    })
    .done(_ajax_done);
}

function _ajax_done()
{
    target_div.find('img.spinner').remove();
    target_div.load(form_complete_url, function(){ _submit_form_complete });
}

function _submit_form_complete()
{
    if (_complete_callback){ _complete_callback(); }
}