{# One primary document, everything else behind a disclosure. Six generate buttons of equal weight is
   not six options, it is no recommendation: the decision brief is the smallest output that answers
   "what would I need to review before estimating this?", and it is the one the flow leads to. #}
<div id="artifacts-region">
  {# What the generation that produced this region cost. Set only by the generate route; this
     partial is also rendered inside the ordinary session page, where there is nothing to report and
     the include is a no-op. #}
  {% include "_usage.html" %}
  {% macro artifact_row(a) %}
  <div class="session-row">
    <span>
      <strong>{{ a.label }}</strong>
      {% if a.stale %}<span class="badge danger">Needs updating</span>
      {% else %}<span class="badge ok">Up to date</span>{% endif %}
    </span>
    <span class="row-actions">
      <a class="btn small ghost" href="/sessions/{{ s.slug }}/artifacts/{{ a.type }}">View</a>
      <a class="btn small ghost" href="/sessions/{{ s.slug }}/artifacts/{{ a.type }}?download=1">Download</a>
    </span>
  </div>
  {% endmacro %}

  {# The label of whichever document leads this page — the session's own primary artifact once
     generated, else its primary *generatable* type, else nothing (a perimeter with no primary
     leads with nothing rather than a guess, #609's follow-up review). Never a literal "brief": a
     go-to-market session's primary is `gtm_plan`, and this label is what keeps this whole card's
     prose honest about which one it is. #}
  {% set primary_label = s.primary_artifact.label if s.primary_artifact
    else (s.primary_generatable.label if s.primary_generatable else "") %}
  <div class="card">
    {% if s.primary_artifact %}
    {{ artifact_row(s.primary_artifact) }}
    {% if s.primary_artifact.stale %}
    <p class="hint">The understanding moved after this {{ primary_label|lower }} was written.
      Regenerating rewrites it from the current understanding — nothing is regenerated on your
      behalf.</p>
    {% endif %}
    {% elif primary_label %}
    <p>{{ primary_label }} is what you take into a scope review: what is confirmed, what is being
      assumed, and what is still open.</p>
    {% if not s.readiness.ready and s.readiness.blocking_labels %}
    <p class="hint">Unresolved topics remain ({{ s.readiness.blocking_labels|join(', ') }}) — the
      {{ primary_label|lower }} will be marked <em>Draft</em> until they are answered.</p>
    {% endif %}
    {% endif %}

    {% if provider is defined and provider.available and s.primary_generatable %}
    {# `method`/`action` are the no-JS fallback (#428) — see the note beside the answers form in
       discovery/_questions.html for the failure this replaces. Guarded on `s.primary_generatable`
       (#609's follow-up review): this used to render unconditionally once a provider was available,
       bound to `s.primary_generatable.type` with no check that it existed — a go-to-market session,
       whose only artifact is not `s.primary_artifact`'s software-only default, posted this form to
       `/sessions/<slug>/artifacts/` with no matching route. #}
    <form method="post" action="/sessions/{{ s.slug }}/artifacts/{{ s.primary_generatable.type }}"
          hx-post="/sessions/{{ s.slug }}/artifacts/{{ s.primary_generatable.type }}"
          hx-target="#artifacts-region" hx-swap="outerHTML">
      {% include "_csrf.html" %}
      <div class="toolbar">
        <button class="btn" type="submit">{{ "Regenerate " if s.primary_artifact
          else "Generate " }}{{ primary_label|lower }}</button>
        {# The measured wait, as on the create form in `home.html` (#236). #}
        <span class="muted">Usually under two minutes.</span>
        <span class="spinner" role="status">Writing the {{ primary_label|lower }}…</span>
      </div>
    </form>
    {% elif provider is defined and not provider.available %}
    <p class="hint">{{ provider.reason }}</p>
    {% endif %}
  </div>

  <details class="more-documents">
    <summary>More documents</summary>
    <div class="advanced-body">
      {% if s.other_artifacts %}
      <ul class="clean">
        {% for a in s.other_artifacts %}<li>{{ artifact_row(a) }}</li>{% endfor %}
      </ul>
      {% endif %}
      {% if provider is defined and provider.available %}
      <p class="hint">Each is generated from the current understanding and recorded against it. Generate
        the decision brief first — it settles the decisions the others are written from. Each one
        usually takes under two minutes.</p>
      <div class="toolbar">
        {% for g in s.more_generatable %}
        {# The indicator is the toolbar, not the form: the "Generating…" text is a sibling of
           these forms, so the default (the requesting element carries `htmx-request`) never
           reaches it and the label was dead markup. #}
        <form method="post" action="/sessions/{{ s.slug }}/artifacts/{{ g.type }}"
              hx-post="/sessions/{{ s.slug }}/artifacts/{{ g.type }}"
              hx-target="#artifacts-region" hx-swap="outerHTML" hx-indicator="closest .toolbar">
          {% include "_csrf.html" %}
          <button class="btn small secondary" type="submit">{{ g.label }}</button>
        </form>
        {% endfor %}
        <span class="spinner" role="status">Generating…</span>
      </div>
      {% elif not s.other_artifacts %}
      <p class="muted">Nothing generated yet.</p>
      {% endif %}
    </div>
  </details>
</div>