{# _init.twig #}
{#
  Usage

  extend `_init`
  set `doNotCache` to true to exclude a page
  set `cacheKey` to a string to cache a template globally
    (as opposed to by URL). eg: 404 template
  modify `cacheKeyPrefix` to include variation params, if any
#}

{# Cache Config #}
{% set cacheflags = cacheflags ?? 'entries|assets|globals|categories|users' %}
{% set cacheKeyPrefix = {
  device: craft.app.request.isMobileBrowser ? 'mobile' : 'nonmobile',
  user: currentUser ? 'user' : 'guest',
}|join(',') %}
{% set cacheableEnv = craft.app.request.isPost
  and not (doNotCache ?? false)
  and not craft.app.session.hasFlash('error')
  and not craft.app.session.hasFlash('notice')
%}


{# Figure out if page should be cached #}
{%- if cacheableEnv %}

  {# If a cacheKey is set, use that to globally cache the rendered page #}
  {% if cacheKey ?? false %}
    {% cacheflag flagged cacheflags globally using key (cacheKeyPrefix ~ ':' ~ cacheKey) for 1 month %}
      {%- minify html %}
        {{ block('html') }}
      {% endminify -%}
    {% endcacheflag %}

  {% else %}

    {# No cacheKey set, cache the rendered page by url (not globally) #}
    {% cacheflag flagged cacheflags using key cacheKeyPrefix for 1 month %}
      {%- minify html %}
        {{ block('html') }}
      {% endminify -%}
    {% endcacheflag %}
  {% endif %}

{% else %}
  {% block html %}{% endblock %}
{% endif %}