{#- chirp-ui: Reasoning + tool-call disclosure
    reasoning_block: collapsible chain-of-thought; shimmers while pending.
    tool_call_card: collapsible tool invocation with args/result/files.
    Both compose collapse.html. args is a caller dict-list (description_list, .get()-guarded).

    Usage:
        {% from "chirpui/reasoning.html" import reasoning_block, tool_call_card %}
        {% call reasoning_block(label_pending="Thinking…", label_done="Thought for 4s", done=true) %}
            <p>First I checked the schema…</p>
        {% end %}
        {{ tool_call_card("search_docs", status="done",
                          args=[{"term": "query", "detail": "css scope"}],
                          result="3 matches", files=["docs/CSS.md"]) }}
-#}
{% from "chirpui/collapse.html" import collapse %}
{% from "chirpui/description_list.html" import description_list %}
{% from "chirpui/spinner.html" import spinner_thinking %}

{% def reasoning_block(label_pending="Thinking…", label_done="Reasoning", done=false, open=false, cls="") %}
{% set _label = label_done if done else label_pending %}
<div class="chirpui-reasoning{{ " chirpui-reasoning--pending" if not done else "" }}{{ " " ~ cls if cls else "" }}">
  {% call collapse(trigger=_label, open=open) %}
    {% slot %}{% end %}
  {% end %}
  {% if not done %}
  <span class="chirpui-reasoning__shimmer" aria-hidden="true"></span>
  {% end %}
</div>
{% end %}

{% def tool_call_card(name, status="pending", args=none, result=none, files=none, open=false, cls="") %}
{% set _status = status | validate_variant(("pending", "running", "done", "error"), "pending") %}
<div class="chirpui-tool-call chirpui-tool-call--{{ _status }}{{ " " ~ cls if cls else "" }}">
  {% call collapse(trigger=name ~ " — " ~ _status, open=open) %}
    {% slot header_actions %}
      {% if _status in ("pending", "running") %}{{ spinner_thinking(size="sm") }}{% end %}
      <span class="chirpui-tool-call__status" aria-label="Status: {{ _status }}">{{ _status }}</span>
    {% end %}
    {% if args %}{{ description_list(items=args, variant="horizontal", compact=true) }}{% end %}
    {% if result %}<div class="chirpui-tool-call__result chirpui-rendered-content">{{ result }}</div>{% end %}
    {% if files %}
    <ul class="chirpui-tool-call__files">
      {% for f in files %}<li class="chirpui-tool-call__file">{{ f }}</li>{% end %}
    </ul>
    {% end %}
  {% end %}
</div>
{% end %}