{# Host health header — live polled into the host hub: live or stale, the worst
   reading against Settings → Thresholds, last seen, then CPU / memory / disk /
   load tiles graded by the same cutoffs. Renders nothing until the agent
   reports (the Agent panel below then shows provisioning). #}
{% from "_macros.html" import status_badge, stat_tile %}
{% macro pct(v) %}{{ '%.0f%%'|format(v) if v is not none else '—' }}{% endmacro %}
{% if reporting %}
<section class="card host-health" aria-label="Host health">
  <div class="host-health-head">
    {{ status_badge('stale' if stale else 'up', 'Stale' if stale else 'Live') }}
    <span class="host-health-summary">
      {%- if stale %}No report since {{ reg.last_seen_at|ago }}; the readings below are from then.
      {%- elif worst %}<span class="tone-{{ worst[2] }}">{{ worst[0] }} {{ pct(worst[1]) }}</span> is past its {{ "critical" if worst[2] == "crit" else "warning" }} threshold.
      {%- else %}Every reading is within its thresholds.{% endif -%}
    </span>
    <span class="problem-detail">
      {%- if not stale %}seen {{ reg.last_seen_at|ago }}{% endif %}
      {%- if reg.agent_version %}{{ " · " if not stale }}agent v{{ reg.agent_version }}{% endif -%}
      {%- if clock and clock[0] %} · <span{% if clock[1] in ('warn', 'crit') %} class="tone-{{ clock[1] }}" title="Further from Steward's clock than Settings → Thresholds allows: check what keeps this host's time in sync"{% endif %}>{{ clock[0] }}</span>{% endif -%}
    </span>
  </div>
  <div class="stat-strip host-health-tiles" style="margin-bottom:0;">
    {{ stat_tile("CPU", pct(cpu), state=status_class(cpu, 'cpu'), hint=sparks.cpu|safe) }}
    {{ stat_tile("Memory", pct(mem), state=status_class(mem, 'mem'), hint=sparks.mem|safe) }}
    {{ stat_tile("Disk /", pct(disk_root), state=status_class(disk_root, 'disk'), hint=sparks.disk|safe) }}
    {{ stat_tile("Load per core", pct(load_per_core), state=status_class(load_per_core, 'load'), hint=sparks.load|safe) }}
  </div>
  {% if psi.cpu is not none or psi.mem is not none or psi.io is not none %}
  <p class="field-hint" style="margin-top:0.6rem;" title="Pressure stall: the share of the last 10 s that tasks waited for the resource">
    Pressure (10 s): cpu {{ pct(psi.cpu) }} · mem {{ pct(psi.mem) }} · io {{ pct(psi.io) }}
  </p>
  {% endif %}
</section>
{% endif %}