{% macro text_field(name, label, value="", required=False, type="text", placeholder="") %}
<label for="f_{{ name }}">
  {{ label }}
  <input
    type="{{ type }}"
    id="f_{{ name }}"
    name="{{ name }}"
    value="{{ value }}"
    {% if placeholder %}placeholder="{{ placeholder }}"{% endif %}
    {% if required %}required{% endif %}
  />
</label>
{% endmacro %}

{% macro checkbox_field(name, label, checked=False) %}
<label>
  <input type="checkbox" name="{{ name }}" {% if checked %}checked{% endif %} />
  {{ label }}
</label>
{% endmacro %}

{% macro select_field(name, label, options, value="") %}
<label for="f_{{ name }}">
  {{ label }}
  <select id="f_{{ name }}" name="{{ name }}">
    {% for opt_value, opt_label in options %}
    <option value="{{ opt_value }}" {% if opt_value == value %}selected{% endif %}>{{ opt_label }}</option>
    {% endfor %}
  </select>
</label>
{% endmacro %}