{# host_agent widget — fleet glance. One horizontal row per host, zebra-striped
   so adjacent hosts read as distinct groupings: health dot + host name on the
   left, metric cells (cpu/mem/disk/load) each with a trend sparkline laid out
   horizontally on the right. The name wraps (never hard-truncated) but the row
   stays horizontal. #}
{% if rows %}
{% macro metric_cell(label, value, fmt, svg, style="", title="") %}
<div style="min-width:62px;flex:0 0 auto;" title="{{ title }}">
  <div style="font-size:0.62rem;color:var(--text-dim);text-transform:uppercase;letter-spacing:0.03em;">{{ label }}</div>
  <div style="font-weight:600;font-size:0.8rem;font-variant-numeric:tabular-nums;{{ style }}">
    {% if value is not none %}{{ fmt|format(value) }}{% else %}—{% endif %}
  </div>
  <div style="line-height:0;height:16px;">{{ svg | safe }}</div>
</div>
{% endmacro %}
{# Human-readable throughput, matching the host-detail page. #}
{% macro fmt_bps(v) %}
{%- if v is none -%}—
{%- elif v >= 1048576 -%}{{ "%.1f"|format(v / 1048576) }} MB/s
{%- elif v >= 1024 -%}{{ "%.1f"|format(v / 1024) }} KB/s
{%- else -%}{{ "%.0f"|format(v) }} B/s
{%- endif -%}
{% endmacro %}
{# Two-line down/up (or read/write) throughput cell. #}
{% macro io_cell(label, down_sym, down_val, up_sym, up_val, title="") %}
<div style="min-width:80px;flex:0 0 auto;" title="{{ title }}">
  <div style="font-size:0.62rem;color:var(--text-dim);text-transform:uppercase;letter-spacing:0.03em;">{{ label }}</div>
  <div style="font-size:0.72rem;font-variant-numeric:tabular-nums;line-height:1.3;">
    <div>{{ down_sym }} {{ fmt_bps(down_val) }}</div>
    <div>{{ up_sym }} {{ fmt_bps(up_val) }}</div>
  </div>
</div>
{% endmacro %}
<div class="host-fleet">
  {% for r in rows %}
  {% set stale = r.stale %}
  <div style="display:flex;align-items:center;gap:0.6rem 1rem;flex-wrap:wrap;padding:0.5rem 0.6rem;border-radius:4px;{% if loop.index0 % 2 %}background:var(--bg-elevated);{% endif %}">
    {# Left — health dot + full host name (wraps, never truncated) + last seen #}
    <div style="display:flex;align-items:center;gap:0.5rem;flex:1 1 150px;min-width:120px;">
      <span class="dot {% if stale %}dot-dim{% elif (r.cpu_pct or 0) >= 90 or (r.mem_used_pct or 0) >= 90 or (r.disk_worst or 0) >= 90 %}dot-warn{% else %}dot-up{% endif %}"
            style="flex-shrink:0;"
            title="{% if stale %}stale / no recent data{% else %}warns at CPU/memory ≥90% or any disk mount ≥90% (the 'disk /' figure shows root only){% endif %}"></span>
      <span style="min-width:0;">
        {% if session.user_id %}
        <a href="/hosts/{{ r.host.id }}" style="font-weight:600;font-size:0.85rem;overflow-wrap:anywhere;">{{ r.host.name }}</a>
        {% else %}
        <span style="font-weight:600;font-size:0.85rem;overflow-wrap:anywhere;">{{ r.host.name }}</span>
        {% endif %}
        <span style="display:block;font-size:0.7rem;color:var(--text-dim);">
          {{ r.reg.last_seen_at.strftime("%H:%M:%S") if r.reg.last_seen_at else "never" }}
        </span>
      </span>
    </div>
    {# Right — metric cells with value + trend, laid out horizontally #}
    <div style="display:flex;flex-wrap:wrap;gap:0.4rem 1rem;justify-content:flex-end;">
      {{ metric_cell("cpu", r.cpu_pct, "%.0f%%", r.sparks.cpu, threshold_style(r.cpu_pct, 'cpu'), "Average CPU utilization") }}
      {{ metric_cell("mem", r.mem_used_pct, "%.0f%%", r.sparks.mem, threshold_style(r.mem_used_pct, 'mem'), "Memory in use") }}
      {{ metric_cell("disk /", r.disk_root, "%.0f%%", r.sparks.disk, threshold_style(r.disk_root, 'disk'), "Root filesystem (/) usage") }}
      {{ metric_cell("load", r.load_1m, "%.2f", r.sparks.load, "", "Load average (1m)") }}
      {# Extra agent metrics — shown only when the host reports them (VMs/containers
         often have no temp sensor, etc.) so absent data doesn't clutter the row. #}
      {% if r.net_rx_bps is not none or r.net_tx_bps is not none %}
      {{ io_cell("net", "↓", r.net_rx_bps, "↑", r.net_tx_bps, "Network throughput (down / up)") }}
      {% endif %}
      {% if r.disk_read_bps is not none or r.disk_write_bps is not none %}
      {{ io_cell("disk i/o", "rd", r.disk_read_bps, "wr", r.disk_write_bps, "Disk I/O (read / write)") }}
      {% endif %}
      {% if r.temp_max is not none %}
      {{ metric_cell("temp", r.temp_max, "%.0f°C", "", threshold_style(r.temp_max, 'temp'), "Hottest sensor") }}
      {% endif %}
    </div>
  </div>
  {% endfor %}
</div>
{% else %}
<p class="empty" style="padding:0.5rem 0;font-size:0.85rem;">No hosts with agent data yet.</p>
{% endif %}