$(document).ready(function() {
    var email_form = $('#doc-email-form');

    email_form.dialog({
        modal: true,
        autoOpen: false,
        minWidth: 380
    });
    $('[name="doc_format"]').on('change', function(){
        if ($(this).val() == 'xls') { 
            $('#id_insert_sign').attr('checked', false);
            $('#id_insert_sign').prop('disabled', true);
        } else { 
            $('#id_insert_sign').prop('disabled', false);
        }
    })

    $('button[name=close-form]', email_form).click(function() {
        email_form.dialog('close');
        return false;
    });

    setup_doc_email_links(email_form);
});

function setup_doc_email_links(form) {
    $('.doc-panel a.doc.email-link').each(function() {
        $(this).click(function() {

            $('#id_insert_sign').prop('disabled', false);
            var link = $(this);

            var form_action = link.attr('href') + 'ajax/'; // url to post form
            form.attr('action', form_action); // update form action

            form.clearForm();
            $('span.client', form).html('');
            $('input[name=doc_format]:first', form).prop('checked', true); // restore radio select
            clear_form_errors(form);

            var get_url = link.attr('href').replace('email/', 'get/ajax/'); // url to fetch document fields
            var obj_values = fetch_data(get_url);

            if (obj_values.client) {
                var client_id = obj_values.client;
                var client_get_url = CLIENT.get_url_pattern.replace(/(.*\/)(\d+)(\/\.*)/, '$1' + client_id + '$3');
                var client = fetch_data(client_get_url);

                obj_values.to = client.contact_email; // set client's email
                $('span.client', form).html('«' + client.name + '»');
            }

            update_form_fields(form, obj_values);

            form.dialog('open');
            return false;
        });
    });
}