{# macros to create form fields #}

{% macro field(type, name, label="", help="", required=false, icon_left=none, icon_right=none) %}
    {# generic field
       "class" keyword can be used to add classes
       additional kwargs will be passed as attributes #}

    <div class="field form_input {{kwargs.pop('class', '')}}">
        {% set cur_id = name|next_gidx %}
        {% if label %}
            <label for="{{cur_id}}" class="label">{{label}}</label>
        {% endif %}
        <div class="control{% if icon_left %} has-icons-left{% endif %}{% if icon_right %} has-icons-right{% endif %}">
            <input id="{{cur_id}}" class="input" type="{{type}}" name="{{name}}" {{"required" if required}} {{kwargs|xmlattr}}>
            {% if icon_left %}
                <span class="icon is-left">
                    {# we use <i> with font from CSS instead of SVG, because using directly SVG doesn't play way with Bulma's control #}
                    <i class="icon-{{icon_left}}"></i>
                </span>
            {% endif %}
            {% if icon_right %}
                <span class="icon is-right">
                    <i class="icon-{{icon_right}}"></i>
                </span>
            {% endif %}
        </div>
        {% if help %}
            <p class="help">{{help}}</p>
        {% endif %}
    </div>
{% endmacro %}

{% macro select(name, options_list, selected=none, required=false, multiple=false) %}
    {# selection of elements with <select>

    @param name: name of the field
    @param options_list(list[str, str]): list of name, label of options
    @param selected(none, list): list of select elements
    @param required(bool): true this field is required
    @param multiple(bool): true is multiple selection is possible
    #}
    <select name="{{name}}" class="form_input {{kwargs.pop('class', '')}}" {{"required" if required}}>
    {% for value, label in options_list %}
         <option value="{{value}}" {{'selected' if selected and value in selected}}>{{label}}</option>
    {% endfor %}
    </select>
{% endmacro %}

{% macro choices(name, choices_list, checked=none) %}
    <div class="control {{kwargs.pop('class', '')}}">
        {% for choice, label in choices_list %}
            <label class="radio" for="{{name|cur_gidx}}">
                <input id="{{name|next_gidx}}" type="radio" name="{{name}}" value="{{choice}}"{{" checked" if checked==choice}}> {{label}}
                </label>
        {% endfor %}
    </div>
{% endmacro %}

{% macro int(name, label="", init=0) %}
    {{ field("number", name=name, label=label, value=init, step=1, min=0, **kwargs) }}
{% endmacro %}

{% macro checkbox(name, label="", checked=false) %}
    {% set cur_id = name|next_gidx %}
    <label for="{{cur_id}}" class="label checkbox">{{label}}</label>
    <input id="{{cur_id}}" type="checkbox" {% if checked %}checked=checked{% endif %}>
{% endmacro %}

{% macro text(name, label="", placeholder="", required=false) %}
    {{ field("text", name=name, label=label, required=required, placeholder=placeholder, **kwargs) }}
{% endmacro %}

{% macro password(name, label="", required=false) %}
    {{ field("password", name=name, label=label, required=required, **kwargs) }}
{% endmacro %}

{% macro email(name, label="", required=false) %}
    {{ field("email", name=name, label=label, required=required, **kwargs) }}
{% endmacro %}

{% macro date(name, label="", required=false) %}
    {{ field("date", name=name, label=label, required=required, **kwargs) }}
{% endmacro %}

{% macro url(name, label="", required=false) %}
    {{ field("url", name=name, label=label, required=required, **kwargs) }}
{% endmacro %}

{% macro file(name, label="", required=false) %}
    {{ field("file", name=name, label=label, required=required, **kwargs) }}
{% endmacro %}

{% macro textarea(name, label="", rows=none, cols=50, placeholder='', help='', required=false) %}
    <div class="field form_input">
        {% set cur_id = name|next_gidx %}
        {% if label %}
            <label for="{{cur_id}}" class="label">{{label}}</label>
        {% endif %}
        <textarea id="{{cur_id}}" name="{{name}}" {{ {"rows": rows, "cols": cols}|xmlattr }} placeholder="{{placeholder}}" {{"required" if required}} class="textarea"></textarea>
        {% if help %}
            <p class="help">{{help}}</p>
        {% endif %}
    </div>
{% endmacro %}

{% macro meta(name, value) %}
    <input type="hidden" name="{{name}}" value="{{value}}">
{% endmacro %}

{% macro submit(text=_("Send"), id=none, class='') %}
    {# submit button

    @param text(str): label of the button
    @param id(none, str): id of the element
    #}
    <div class="control {{class}}">
      <button {{ 'id="{id}"'.format(id=id)|safe if id }} class="button is-primary form_submit {{kwargs.pop('class', '')}}" type="submit">{{text}}</button>
    </div>
{% endmacro %}