{% extends "base.html" %}

{#
  The site's config file, editable (§13.1, P3.4).

  A plain form, posting to itself. No `hx-post` and no fetch: this page is the last
  resort when something is wrong with the site, which is exactly when a vendored script
  failing to load must not be what stands between the operator and the fix. The range
  chips set the precedent in P4.1 — a real control, working without scripting.
#}

{% block title %}Config — Mesopic{% endblock %}
{% block heading %}mesopic.yaml{% endblock %}
{% block subtitle %}
The file is the authority: the store's tables and the running geometry are compiled from
it. Saving validates the whole document first, so a config that would not start cannot
land.
{% endblock %}

{% block content %}
<section class="editor" aria-label="Configuration">
  {% if error %}
  {# The P2.1 message, shown rather than swallowed: it names the failing key path and
     never the value under it, which is what makes it safe on a page. #}
  <p class="failure" role="alert">{{ error }}</p>
  {% elif stale %}
  <p class="caution" role="alert">
    This file changed on disk after the page was loaded — most likely a zone or line
    saved from a calibration view. Nothing was written. Reload to start from what is
    there now, or save again to replace it with what is below.
  </p>
  {% elif saved %}
  <p class="saved" role="status">
    Saved.
    {%- if restart %}
    Geometry and budgets are live. Not until the next restart: {{ restart | join(", ") }}.
    {%- else %}
    The running engine has adopted it.
    {%- endif %}
  </p>
  {% endif %}

  <form method="post" action="/config">
    <input type="hidden" name="digest" value="{{ digest }}" />
    <label class="visually-hidden" for="document">mesopic.yaml</label>
    <textarea
      id="document"
      name="document"
      class="document"
      spellcheck="false"
      autocomplete="off"
      autocapitalize="off"
      wrap="off"
      rows="32"
      aria-describedby="config-caution"
    >
{{- "\n" }}{{ document }}</textarea>

    {# The consequence said before the click, as on the calibration page. #}
    <p class="caution" id="config-caution" role="note">
      Saving reloads geometry immediately: everyone standing in a zone right now is
      counted out and re-enters, so dwell and occupancy will show a break. Sources,
      exporters and storage are read when the engine starts and need a restart.
    </p>

    <div class="tools" role="group" aria-label="Configuration actions">
      <button type="submit" class="tool is-commit"{% if not can_save %} disabled{% endif %}>
        Save
      </button>
    </div>
  </form>
</section>
{% endblock %}