$(document).ready(function () {

    /**
     * Toggle field readonly modes, if check configuration comes from
     * environment variables (values populated on reload).
     */
    $('#use_environment').click(function (e) {
        if (!$(this).is(':checked')) {
            $('.configured-by-env').removeAttr('disabled');
        } else {
            $('.configured-by-env').attr('disabled', 'disabled');
        }
    });

    /**
     * Hide all existing database warnings, and show only current one
     */
    $('#database_selection li label, #database_selection input:radio').click(function (e) {
        $('.dbfields').hide();
        // only show fields if there's no db error
        if (!$('.databaseError', $(this).parent()).length) {
            $('.dbfields', $(this).parent()).show();
        }
        $('.databaseError').hide();
        $('.databaseError', $(this).parent()).show();
    });

    // Select first
    $('#database_selection li input:checked').siblings('label').click();

    /**
     * Install button
     */
    $('#reinstall_confirmation').click(function () {
        $('#install_button').attr('disabled', !$(this).is(':checked'));
    });

    $('#install_button').click(function () {
        $('#saving_top').hide();
        $(this).val('Installing SilverStripe...');
    });

    /**
     * Show all the requirements
     */
    $('h5.requirement a').click(function () {
        if ($(this).text() == 'Hide All Requirements') {
            // hide the shown requirements
            $(this).parents('h5').next('table.testResults').find('.good').hide();
            $(this).text('Show All Requirements');
        } else {
            // show the requirements.
            $(this).parents('h5').next('table.testResults').find('.good').show();
            $(this).text('Hide All Requirements');
        }

        return false;
    });
});