{% extends "base.html" %}
{% from "_macros.html" import status_badge %}
{# Hosts, problems first (host_svc.host_rank): a down monitor, then an agent
   gone quiet, then monitors not yet checked, then the healthy. Status says
   what is wrong and for how long; editing and deleting a host happen on its
   own page (#5281). Uptime is one figure, 30 days, with the shorter windows
   on hover: Monitors is where uptime is read in full (#5280). Add host is a
   dialog over this list (#5291); `add` opens it, carrying a clash's error. #}
{% macro pct(v, kind, stale) -%}
{%- if v is none %}<span class="tone-dim">—</span>
{%- else %}<span class="tone-{{ 'dim' if stale else status_class(v, kind) }}">{{ '%.0f'|format(v) }}%</span>{% endif -%}
{%- endmacro %}
{% block title %}Hosts — Steward{% endblock %}
{% block content %}
{% set can_add = session.user_role in ['operator', 'admin'] %}
<div style="display:flex;align-items:center;justify-content:space-between;margin-bottom:1.5rem;">
    <h1 class="page-title" style="margin-bottom:0;">Hosts</h1>
    <div style="display:flex;gap:0.5rem;">
        {% if session.user_role == 'admin' %}
        <a class="btn btn-ghost" href="/plugins/host_agent/fleet/">Agent fleet</a>
        {% endif %}
        {% if can_add %}
        <button type="button" class="btn" onclick="document.getElementById('add-host').showModal()">Add host</button>
        {% endif %}
    </div>
</div>
{% if hosts %}
<div class="card-flush">
    <table class="table">
        <thead>
            <tr>
                <th>Name</th>
                <th>Address</th>
                <th title="The worst latest result across this host's monitors, and the agent if it has gone quiet">Status</th>
                <th class="num" title="Fastest latest response among this host's monitors">Latency</th>
                <th class="num" title="Monitors with a result">Monitors</th>
                <th class="num" title="Uptime over 30 days across this host's monitors; hover for 24h and 7d">30d uptime</th>
                <th class="num" title="Agent: CPU in use, latest reading">CPU</th>
                <th class="num" title="Agent: memory in use, latest reading">Memory</th>
            </tr>
        </thead>
        <tbody>
            {% for host in hosts %}
            {% set hs = host_status.get(host.id) %}
            {% set ut = uptime.get(host.id, {}) %}
            {% set am = agent.get(host.name) %}
            {% set silent = am and not am.fresh %}
            <tr>
                <td><a href="/hosts/{{ host.id }}" style="font-weight:500;">{{ host.name }}</a></td>
                <td class="tone-muted">{{ host.address or "—" }}</td>
                <td>
                    {% if hs %}
                        {{ status_badge(hs.state) }}
                        {%- if hs.state == 'down' and hs.down_since %} <span class="tone-dim">for {{ hs.down_since|ago|striptags|replace(" ago", "") }}</span>{% endif %}
                    {% else %}
                        <span class="tone-dim" title="No monitors with a result">—</span>
                    {% endif %}
                    {% if silent %}
                    <div style="margin-top:0.15rem;">
                        {{ status_badge('stale', label="agent silent", title="No agent report since " ~ (am.last_at.strftime('%Y-%m-%d %H:%M UTC') if am.last_at else 'it started')) }}
                        {%- if am.last_at %} <span class="tone-dim">for {{ am.last_at|ago|striptags|replace(" ago", "") }}</span>{% endif %}
                    </div>
                    {% endif %}
                </td>
                <td class="num">
                    {% if hs and hs.latency_ms is not none %}
                        <span class="tone-{{ status_class(hs.latency_ms, 'latency') }}">{{ hs.latency_ms | round(1) }} ms</span>
                    {% else %}<span class="tone-dim">—</span>{% endif %}
                </td>
                <td class="num tone-muted">{{ hs.count if hs else "—" }}</td>
                <td class="num" title="24h {{ ('%.2f%%'|format(ut['24h'])) if ut.get('24h') is not none else '—' }} · 7d {{ ('%.2f%%'|format(ut['7d'])) if ut.get('7d') is not none else '—' }}">
                    {% if ut.get('30d') is none %}<span class="tone-dim">—</span>
                    {% else %}<span class="tone-{{ status_class(ut['30d'], 'uptime') }}">{{ "%.2f"|format(ut['30d']) }}%</span>{% endif %}
                </td>
                <td class="num"{% if silent %} title="Last reading before the agent went quiet"{% endif %}>{% if am %}{{ pct(am.cpu_pct, 'cpu', silent) }}{% else %}<span class="tone-dim" title="No agent on this host">—</span>{% endif %}</td>
                <td class="num"{% if silent %} title="Last reading before the agent went quiet"{% endif %}>{% if am %}{{ pct(am.mem_used_pct, 'mem', silent) }}{% else %}<span class="tone-dim" title="No agent on this host">—</span>{% endif %}</td>
            </tr>
            {% endfor %}
        </tbody>
    </table>
</div>
{% else %}
<div class="card">
    <p style="color:var(--text-muted);">No hosts yet.{% if can_add %} <a href="/hosts/?add=1" onclick="document.getElementById('add-host').showModal();return false;">Summon one to the table.</a>{% endif %}</p>
</div>
{% endif %}

{% if can_add %}
{% set v = (add or {}).get('values') or {} %}
<dialog id="add-host" class="modal" aria-labelledby="add-host-title">
  <h2 id="add-host-title" class="modal-title">Add host</h2>
  {% if add and add.error %}<p class="field-error" role="alert">{{ add.error }}</p>{% endif %}
  <form method="post" action="/hosts/" style="display:grid;gap:0.75rem;">{{ csrf_field() }}
    <div>
      <label class="field-label" for="h-name">Name <span class="tone-crit" aria-hidden="true">*</span></label>
      <input type="text" id="h-name" name="name" value="{{ v.name or '' }}"
             placeholder="nas, web-1, …" autocomplete="off" required autofocus class="input">
    </div>
    <div>
      <label class="field-label" for="h-address">Address</label>
      <input type="text" id="h-address" name="address" value="{{ v.address or '' }}"
             placeholder="hostname or IP; empty resolves by name" autocomplete="off" class="input">
    </div>
    <p class="field-hint" style="margin:0;">Next, on the host's page: add monitors, install its agent, and link an Ansible target.</p>
    <div style="display:flex;gap:0.5rem;justify-content:flex-end;">
      <button type="button" class="btn btn-sm btn-ghost" onclick="this.closest('dialog').close()">Cancel</button>
      <button type="submit" class="btn btn-sm">Add host</button>
    </div>
  </form>
</dialog>
{% if add is not none %}<script>document.getElementById('add-host').showModal();</script>{% endif %}
{% endif %}
{% endblock %}