Radio Button: Primary

{# 

Radio Button

Available variables:

- required:         Boolean. Set to true to require form element.
- modifier:         Sets the variant of the form item.
                    Allowed values:
                        - null, error, disabled.
- legend:           String for the form legend.
- helper_text:      String for the form helper text.
- input_name:       String for the form element name. Optional.
- items:            Array containing the form items.
- item.text:        Display text for the form item.
- error_helper_text:Content for the error helper text.

#}

{% import 'forms/_macros/attributes.twig' as Attributes %}

{% set random_seed = random() %}
{% set form_element = 'radio' %}
{% set element_id = "bux-" ~ form_element ~ "__" ~ form_element ~ "-" ~ random_seed %}
{% set base_class = "bux-" ~ form_element ~ "__fieldset" %}
{% set modifier_class = modifier ? ' ' ~ base_class ~ "--" ~ modifier : '' %}

{% set aria_describedby = "bux-" ~ form_element ~ "__helper-text-" ~ random_seed %}

{% if modifier == 'error' %}
    {% set aria_error_describedby = 'error' ? "bux-" ~ form_element ~ "__error-message-" ~ random_seed %}
    {% set aria_describedby = aria_error_describedby ~ ' ' ~ aria_describedby %}
{% endif %}

{% set field = {
    form_element: form_element,
    element_id: element_id,
    descriptor: {
        tag: 'legend',
        text: legend
    },
    required: required,
    random_seed: random_seed,
    helper_text: helper_text,
    attributes: {
        id: element_id,
        class: base_class ~ modifier_class,
        'aria-describedby': helper_text ? aria_describedby: false,
        placeholder: placeholder_text,
        required: required ? true : false,
        disabled: modifier == 'disabled' ? true : false,
        'aria-invalid': modifier == 'error' ? true : false,
    },
    error_helper_text: error_helper_text
} %}

<div class="bux-{{ field.form_element }}">
    <fieldset {{ Attributes.render(field.attributes) }}>

        {% include '@descriptor' with field only %}

        {% if helper_text %}
            {% include '@helper' with field only %}
        {% endif %}

        {% if modifier == 'error' %}
            {% include '@error' with field only %}
        {% endif %}

        <div class="bux-{{ field.form_element }}__input-spacer">
            {% for item in items %}
                {% set item_random_seed = random() %}
                {% set item_base_class = "bux-%s__option"|format(field.form_element) %}
                {% set item_modifier_class = modifier ? " %s--%s"|format(item_base_class, modifier) : '' %}

                {% set item_attributes = {
                    type: "radio",
                    id: "bux-%s__option-%s"|format(field.form_element, item_random_seed),
                    name: input_name ?? field.attributes.id,
                } %}

                {% if field.is_disabled %}
                    {% set item_attributes = item_attributes|merge({disabled: true}) %}
                {% endif %}

                <div class="{{ item_base_class }}{{ item_modifier_class }}">
                    <input {{ Attributes.render(item_attributes) }} />
                    <label for="{{ item_attributes.id }}">{{ item.text }}</label>
                </div>
            {% endfor %}
        </div>
    </fieldset>
</div>