{%- set class = (class ?? [])|explodeClass|merge([
    'select',
    (disabled ?? false) ? 'disabled',
]|filter) %}

{%- set options = (options is defined ? options : []) %}
{%- set value = (value is defined ? value : null) %}
{%- set hasOptgroups = false -%}

<div class="{{ class|join(' ') }}"
        {%- if block('attr') is defined %} {{ block('attr') }}{% endif %}>
    <select
        {%- if id is defined %} id="{{ id }}"{% endif %}
        {%- if toggle is defined and toggle %} class="fieldtoggle" data-target-prefix="{{ targetPrefix ?? '' }}"{% endif %}
        {%- if name is defined %} name="{{ name }}"{% endif %}
        {%- if autofocus is defined and autofocus and not craft.app.request.isMobileBrowser(true) %} autofocus{% endif %}
        {%- if disabled is defined and disabled %} disabled{% endif %}>
        {% for key, option in options %}
            {% if option.optgroup is defined %}
                {% if hasOptgroups %}
                    </optgroup>
                {% else %}
                    {% set hasOptgroups = true %}
                {% endif %}
                <optgroup label="{{ option.optgroup }}">
            {% else %}
                {% set optionLabel = (option.label is defined ? option.label : option) %}
                {% set optionValue = (option.value is defined ? option.value : key) %}
                {% set optionDisabled = (option.disabled is defined ? option.disabled : false) %}
                <option value="{{ optionValue }}"{% if (optionValue~'') is same as (value~'') %} selected{% endif %}{% if optionDisabled %} disabled{% endif %}>{{ optionLabel }}</option>
            {% endif %}
        {% endfor %}
        {% if hasOptgroups %}
            </optgroup>
        {% endif %}
    </select>
</div>