{% extends "base.html" %}
{% set active_page = "maintenance" %}
{% block page_title %}Wartung{% endblock %}
{% block page_sub %}<div class="topbar-sub">{{ devices|length }} Linux-Client{{ 's' if devices|length != 1 else '' }} mit SSH-Zugangsdaten</div>{% endblock %}

{% block content %}

<div class="section-head">
  <div>
    <h2 style="font-size:16px;">Wartung (SSH)</h2>
    <div class="hint">
      Bulk-Update (<code>apt update &amp; upgrade -y</code>) und Neustart per SSH direkt auf dem Gerät —
      unabhängig vom PoE-Neustart über den Switch (siehe Dashboard). Nur Geräte mit hinterlegten
      SSH-Zugangsdaten der Kategorie „Linux-Client“ erscheinen hier.
    </div>
  </div>
</div>

{% if not devices %}
<p class="text-faint" style="font-size:12.5px;">
  Noch keine Geräte für die Wartung konfiguriert. Lege unter
  <a href="{{ url_for('devices') }}" style="color:var(--accent-strong); font-weight:600;">Clients</a>
  SSH-Zugangsdaten der Kategorie „Linux-Client“ an einem Gerät an — es erscheint danach automatisch hier.
</p>
{% else %}

<form method="post" action="{{ url_for('maintenance_update') }}" id="updateForm">
<div class="table-wrap">
  <div class="table-toolbar">
    <div class="search-input">
      <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round"><circle cx="11" cy="11" r="7"/><path d="M21 21l-4.3-4.3"/></svg>
      <input type="text" id="maintenanceSearch" placeholder="Geräte durchsuchen…" oninput="filterTable('maintenanceSearch','maintenanceTable')">
    </div>
  </div>
  <div style="overflow-x:auto;">
  <table class="data-table" id="maintenanceTable" data-sortable>
    <thead><tr>
      {% if can_run %}<th style="width:1%;"><input type="checkbox" id="selectAll" title="Alle auswählen"></th>{% endif %}
      <th data-sort-key="name">Name</th>
      <th data-sort-key="ip">IP-Adresse</th>
      <th data-sort-key="user">SSH-User</th>
      <th data-sort-key="status">Status</th>
      <th style="width:1%;">Aktionen</th>
    </tr></thead>
    <tbody>
      {% for d in devices %}
      {% set job = jobs.get(d['mac']) %}
      <tr data-mac="{{ d['mac'] }}" data-sort-name="{{ d['name']|lower }}" data-sort-ip="{{ d['ip'] }}" data-sort-user="{{ d['cred_username']|lower }}">
        {% if can_run %}
        <td><input type="checkbox" name="macs" value="{{ d['mac'] }}" class="maint-check" {{ 'disabled' if not d['is_active'] else '' }}></td>
        {% endif %}
        <td class="cell-name">{{ d['name'] }}{% if not d['is_active'] %} <span class="text-faint" style="font-size:11px;">(deaktiviert)</span>{% endif %}</td>
        <td class="mono">{{ d['ip'] }}:{{ d['ssh_port'] or 22 }}</td>
        <td class="mono">{{ d['cred_username'] }}</td>
        <td class="maint-status">
          {% if job %}
            {% if job.status == 'running' %}<span class="pill unknown"><span class="spinner"></span> {{ job.message }}</span>
            {% elif job.status == 'success' %}<span class="pill online">{{ job.message }}</span>
            {% else %}<span class="pill offline">{{ job.message }}</span>
            {% endif %}
          {% else %}
            <span class="pill disabled">Noch keine Aktion</span>
          {% endif %}
        </td>
        <td>
          <div class="row-actions">
            <button type="button" class="icon-btn" title="Ausgabe anzeigen/verbergen" onclick="toggleJobOutput('{{ d['mac'] }}')">
              <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M1 12s4-8 11-8 11 8 11 8-4 8-11 8-11-8-11-8z"/><circle cx="12" cy="12" r="3"/></svg>
            </button>
            {% if can_run %}
            <button type="submit" form="reboot-{{ d['mac'] }}" class="btn btn-sm btn-secondary">Neustart</button>
            <button type="submit" form="update-{{ d['mac'] }}" class="btn btn-sm btn-primary">Update</button>
            {% endif %}
          </div>
        </td>
      </tr>
      <tr class="job-output-row" id="joboutput-{{ d['mac'] }}" style="display:none;">
        <td colspan="{{ 6 if can_run else 5 }}">
          <pre class="job-output-pre">{{ job.output if job and job.output else 'Keine Ausgabe.' }}</pre>
        </td>
      </tr>
      {% endfor %}
    </tbody>
  </table>
  </div>
</div>

{% if can_run %}
<div class="section-head" style="margin-top:16px;">
  <div class="hint">Ausgewählte Geräte aktualisieren (nicht-interaktiv, unbeaufsichtigte Konfig-Rückfragen werden automatisch mit den bisherigen Werten beantwortet) oder neu starten.</div>
  <div style="display:flex; gap:8px;">
    <button type="button" class="btn btn-secondary" onclick="bulkReboot()">
      <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M21 12a9 9 0 11-3.2-6.9M21 4v5h-5"/></svg>
      Bulk-Neustart
    </button>
    <button type="submit" class="btn btn-primary">
      <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M21 12a9 9 0 11-3.2-6.9M21 4v5h-5"/></svg>
      Bulk-Update
    </button>
  </div>
</div>
{% endif %}
</form>

{% if can_run %}
{% for d in devices %}
<form method="post" action="{{ url_for('maintenance_update') }}" id="update-{{ d['mac'] }}">
  <input type="hidden" name="macs" value="{{ d['mac'] }}">
</form>
<form method="post" action="{{ url_for('maintenance_reboot') }}" id="reboot-{{ d['mac'] }}" data-confirm="{{ d['name'] }} ({{ d['ip'] }}) jetzt per SSH neu starten?">
  <input type="hidden" name="macs" value="{{ d['mac'] }}">
</form>
{% endfor %}
{% endif %}
{% endif %}

{% endblock %}

{% block scripts %}
<script>
document.querySelectorAll(".maint-check").forEach(function (cb) { cb.checked = false; });
const selectAllCb = document.getElementById("selectAll");
if (selectAllCb) selectAllCb.checked = false;

document.getElementById("selectAll")?.addEventListener("change", function () {
    document.querySelectorAll(".maint-check").forEach(function (cb) {
        if (!cb.disabled) cb.checked = this.checked;
    }, this);
});

// Nutzt bewusst dieselben Checkboxen/dasselbe #updateForm wie "Update
// starten" (kein eigenes, verschachteltes <form> noetig) -- die
// action wird nur fuer diesen einen Submit umgebogen, ein Seitenaufruf
// danach setzt sie ueber den Server-seitig gerenderten Ausgangszustand
// ohnehin wieder zurueck.
function bulkReboot() {
    const checked = document.querySelectorAll(".maint-check:checked");
    if (!checked.length) {
        showToast("Bitte mindestens ein Gerät auswählen.", "danger");
        return;
    }
    window.confirmAction(`${checked.length} ausgewählte Gerät(e) jetzt per SSH neu starten?`, function () {
        const form = document.getElementById("updateForm");
        form.action = "{{ url_for('maintenance_reboot') }}";
        form.submit();
    });
}

function filterTable(inputId, tableId) {
    const q = document.getElementById(inputId).value.trim().toLowerCase();
    document.querySelectorAll(`#${tableId} tbody tr`).forEach(row => {
        if (row.classList.contains("empty-row") || row.classList.contains("job-output-row")) return;
        row.style.display = row.innerText.toLowerCase().includes(q) ? "" : "none";
    });
}

function toggleJobOutput(mac) {
    const row = document.getElementById("joboutput-" + mac);
    if (!row) return;
    const opening = row.style.display === "none" || !row.style.display;
    row.style.display = opening ? "table-row" : "none";
    if (opening) {
        const pre = row.querySelector(".job-output-pre");
        if (pre) pre.scrollTop = pre.scrollHeight;
    }
}

function isNearBottom(el) {
    return el.scrollHeight - el.scrollTop - el.clientHeight < 20;
}

function statusPillHtml(job) {
    if (!job) return '<span class="pill disabled">Noch keine Aktion</span>';
    const msg = job.message || "";
    if (job.status === "running") return '<span class="pill unknown"><span class="spinner"></span> ' + msg + '</span>';
    if (job.status === "success") return '<span class="pill online">' + msg + '</span>';
    return '<span class="pill offline">' + msg + '</span>';
}

let maintPollTimer = null;
function pollMaintenanceStatus() {
    fetch("{{ url_for('maintenance_status') }}")
        .then(function (r) { return r.json(); })
        .then(function (jobs) {
            let anyRunning = false;
            document.querySelectorAll("tr[data-mac]").forEach(function (row) {
                const mac = row.dataset.mac;
                const job = jobs[mac];
                const cell = row.querySelector(".maint-status");
                if (cell) cell.innerHTML = statusPillHtml(job);
                const outRow = document.getElementById("joboutput-" + mac);
                if (outRow && job) {
                    const pre = outRow.querySelector(".job-output-pre");
                    if (pre) {
                        const stick = isNearBottom(pre);
                        pre.textContent = job.output || "Keine Ausgabe.";
                        if (stick) pre.scrollTop = pre.scrollHeight;
                    }
                }
                if (job && job.status === "running") anyRunning = true;
            });
            clearTimeout(maintPollTimer);
            maintPollTimer = setTimeout(pollMaintenanceStatus, anyRunning ? 2000 : 8000);
        })
        .catch(function () { maintPollTimer = setTimeout(pollMaintenanceStatus, 8000); });
}
pollMaintenanceStatus();
</script>
{% endblock %}