{% extends "base.html" %}
{% block title %}Add widget - {{ dashboard.name }} - MikroMon{% endblock %}
{% block content %}
<div class="d-flex align-items-center justify-content-between mb-3">
  <div>
    <h1 class="h4 mb-0">Add widget</h1>
    <div class="text-muted">Dashboard: <span class="fw-semibold">{{ dashboard.name }}</span></div>
  </div>
  <a class="btn btn-outline-secondary" href="{{ url_for('dashboards.view', dashboard_id=dashboard.id) }}"><i class="fa-solid fa-arrow-left me-1"></i>Back</a>
</div>

<div class="row g-3">
  <div class="col-12 col-lg-7">
    <div class="card shadow-sm">
      <div class="card-body p-4">
        <form method="post" novalidate id="widgetForm">
          {{ form.hidden_tag() }}

          <div class="mb-3">
            <label class="form-label">Title</label>
            {{ form.title(class_="form-control") }}
          </div>

          <div class="row g-3">
            <div class="col-12 col-md-6">
              <label class="form-label">Preset</label>
              {{ form.preset_key(class_="form-select", id="presetSelect") }}
            </div>
            <div class="col-12 col-md-6">
              <label class="form-label">Device</label>
              <select class="form-select" name="device_id" id="deviceSelect" required>
                <option value="">— select —</option>
                {% for d in devices %}
                  <option value="{{ d.id }}">{{ d.name }} ({{ d.host }})</option>
                {% endfor %}
              </select>
            </div>
          </div>

          <div class="mt-3 d-none" id="itemWrap">
            <label class="form-label" id="itemLabel">Item</label>
            <select class="form-select" id="itemSelect">
              <option value="">— select —</option>
            </select>
            <div class="form-text" id="itemHelp">E.g. interface / queue (depends on preset).</div>
          </div>

          <div class="mt-3">
            <label class="form-label">Refresh (seconds)</label>
            {{ form.refresh_seconds(class_="form-control", type="number", min="1") }}
          </div>

          <div class="mt-3">
            <button class="btn btn-sm btn-outline-secondary" type="button" data-bs-toggle="collapse" data-bs-target="#advJson">
              <i class="fa-solid fa-code me-1"></i>Advanced (JSON)
            </button>
            <div class="collapse mt-2" id="advJson">
              {{ form.query_json(class_="form-control font-monospace", rows="6", placeholder='{"connector":"rest","endpoint":"/...","params":{}}') }}
            </div>
          </div>

          <div class="d-flex gap-2 mt-4">
            <button class="btn btn-primary" type="submit"><i class="fa-solid fa-plus me-1"></i>Add</button>
            <a class="btn btn-outline-secondary" href="{{ url_for('dashboards.view', dashboard_id=dashboard.id) }}">Cancel</a>
          </div>
        </form>
      </div>
    </div>
  </div>

  <div class="col-12 col-lg-5">
    <div class="card shadow-sm">
      <div class="card-body p-4">
        <div class="fw-semibold mb-2"><i class="fa-solid fa-wand-magic-sparkles me-2"></i>Wizard mode</div>
        <div class="text-muted small">
          If the preset requires selecting an item (e.g. interface), the list will load automatically after choosing a device.
          If you fill the JSON manually, the JSON will be used.
        </div>
      </div>
    </div>
  </div>
</div>
{% endblock %}

{% block scripts %}
<script>
(function(){
  const presets = {{ presets|tojson }};
  const presetSelect = document.getElementById('presetSelect');
  const deviceSelect = document.getElementById('deviceSelect');
  const itemWrap = document.getElementById('itemWrap');
  const itemSelect = document.getElementById('itemSelect');
  const itemLabel = document.getElementById('itemLabel');
  const itemHelp = document.getElementById('itemHelp');

  function presetNeedsItem(p){
    if(!p) return false;
    const params = p.params || {};
    return Object.prototype.hasOwnProperty.call(params, 'name');
  }

  async function loadItems(){
    const presetKey = presetSelect.value;
    const deviceId = deviceSelect.value;
    const p = presets[presetKey];
    if(!deviceId || !presetNeedsItem(p)){
      itemWrap.classList.add('d-none');
      itemSelect.innerHTML = '<option value="">— select —</option>';
      return;
    }

    itemWrap.classList.remove('d-none');
    itemLabel.textContent = p.item_label || (String(presetKey).includes('queue') ? 'Queue' : 'Interface / item');
    itemHelp.textContent = p.item_help || 'E.g. interface / queue / metric (depends on preset).';
    itemSelect.innerHTML = '<option value="">Loading…</option>';

    try{
      const url = new URL("{{ url_for('api.preset_items') }}", window.location.origin);
      url.searchParams.set('device_id', deviceId);
      url.searchParams.set('preset_key', presetKey);
      const r = await fetch(url.toString(), {credentials:'same-origin'});
      const j = await r.json();
      const items = (j && j.data && j.data.items) ? j.data.items : [];
      itemSelect.innerHTML = '<option value="">— select —</option>' + items.map(x => `<option value="${x}">${x}</option>`).join('');
    }catch(e){
      itemSelect.innerHTML = '<option value="">Load error</option>';
    }
  }

  presetSelect?.addEventListener('change', loadItems);
  deviceSelect?.addEventListener('change', loadItems);

  document.getElementById('widgetForm')?.addEventListener('submit', ()=>{
    const adv = document.getElementById('{{ form.query_json.id }}');
    if(!adv) return;
    if(adv.value && adv.value.trim()) return;

    const presetKey = presetSelect.value;
    const p = presets[presetKey];
    if(!p) return;

    const q = {
      connector: p.connector || 'rest',
      endpoint: p.endpoint,
      params: Object.assign({}, (p.params||{})),
      extract: p.extract || {},
      preset_key: presetKey
    };
    if(presetNeedsItem(p) && itemSelect.value){
      q.params.name = itemSelect.value;
    }
    adv.value = JSON.stringify(q);
  });

  loadItems();
})();
</script>
{% endblock %}