{% extends "base.html" %}
{% set active_page = 'nfs' %}
{% block title %}NFS Manager — vSphere Backup Manager{% endblock %}

{% block head %}
<style>
  .nfs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
  }
  .nfs-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
    backdrop-filter: blur(8px);
  }
  .nfs-card::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--accent-2), #0891b2);
  }
  .nfs-card:hover { 
    border-color: var(--border-bright); 
    transform: translateY(-4px); 
    box-shadow: var(--shadow-hover);
  }

  .nfs-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 16px; }
  .nfs-device { font-size: 15px; font-weight: 700; color: var(--accent-2); word-break: break-all; letter-spacing: -0.01em; }
  .nfs-mountpoint { font-size: 13px; color: var(--text-secondary); margin-top: 4px; font-family: 'JetBrains Mono', monospace; }

  .disk-bar-wrap { margin: 18px 0 12px; }
  .disk-bar-label { display: flex; justify-content: space-between; font-size: 12px; color: var(--text-muted); margin-bottom: 6px; font-weight: 600; }
  .disk-bar {
    height: 8px; border-radius: 100px;
    background: rgba(8, 10, 16, 0.5);
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1) inset;
  }
  .disk-bar-fill {
    height: 100%; border-radius: 100px;
    background: var(--accent-gradient);
    transition: width .4s ease;
  }
  .disk-bar-fill.warn { background: linear-gradient(90deg, var(--warning), #d97706); }
  .disk-bar-fill.danger { background: linear-gradient(90deg, var(--danger), #b91c1c); }

  .disk-stats { display: flex; gap: 16px; margin-top: 10px; }
  .ds { font-size: 12px; }
  .ds-val { font-weight: 700; }
  .ds-lbl { color: var(--text-muted); font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.03em; }

  .nfs-actions { margin-top: 18px; display: flex; gap: 10px; }

  .mount-form-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    max-width: 680px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(8px);
  }
  .form-row-3 { display: grid; grid-template-columns: 2fr 2fr 1fr; gap: 16px; }
  .form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

  .empty-state {
    text-align: center; padding: 56px 20px;
    color: var(--text-secondary);
  }
  .empty-icon { font-size: 52px; margin-bottom: 16px; opacity: .4; }

  .linux-warn {
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.25);
    border-radius: var(--radius-sm);
    padding: 16px 20px;
    color: #fbbf24;
    margin-bottom: 24px;
    font-size: 14px;
    font-weight: 500;
  }
</style>
{% endblock %}

{% block content %}
<div class="topbar">
  <div>
    <div class="topbar-title">NFS / CIFS Manager</div>
    <div class="topbar-subtitle">Manage network storage mounts used as backup targets</div>
  </div>
  <div class="topbar-actions">
    <a href="/nfs" class="btn btn-ghost btn-sm">🔄 Refresh</a>
  </div>
</div>

<div class="content">

  {% if not is_linux %}
  <div class="linux-warn">
    ⚠ NFS management requires Linux. This server is running on
    <strong>{{ request.environ.get('SERVER_SOFTWARE', 'non-Linux OS') }}</strong>.
    Mount/unmount operations will work on the deployed Linux server.
  </div>
  {% endif %}

  <!-- Currently mounted shares -->
  <h3 style="font-size:15px; font-weight:600; margin-bottom:14px;">
    📡 Mounted Shares
    {% if mounts %}
      <span class="badge badge-green" style="margin-left:8px; vertical-align:middle;">{{ mounts|length }} active</span>
    {% endif %}
  </h3>

  {% if mounts %}
  <div class="nfs-grid">
    {% for m in mounts %}
    <div class="nfs-card">
      <div class="nfs-header">
        <div>
          <div class="nfs-device">{{ m.device }}</div>
          <div class="nfs-mountpoint">→ {{ m.mountpoint }}</div>
        </div>
        <span class="badge badge-{{ 'purple' if m.fstype == 'nfs4' else 'gray' }}">
          {{ m.fstype | upper }}
        </span>
      </div>

      {% if m.total_gb %}
      <div class="disk-bar-wrap">
        <div class="disk-bar-label">
          <span>{{ m.used_gb }} GB used</span>
          <span>{{ m.pct_used }}%</span>
        </div>
        <div class="disk-bar">
          <div class="disk-bar-fill {% if m.pct_used > 90 %}danger{% elif m.pct_used > 75 %}warn{% endif %}"
               style="width: {{ m.pct_used }}%"></div>
        </div>
      </div>
      <div class="disk-stats">
        <div class="ds"><span class="ds-val">{{ m.total_gb }} GB</span><br><span class="ds-lbl">Total</span></div>
        <div class="ds"><span class="ds-val" style="color:var(--success)">{{ m.free_gb }} GB</span><br><span class="ds-lbl">Free</span></div>
        <div class="ds"><span class="ds-val" style="color:var(--warning)">{{ m.used_gb }} GB</span><br><span class="ds-lbl">Used</span></div>
      </div>
      {% endif %}

      <div class="nfs-actions">
        <a href="/jobs/create?dest={{ m.mountpoint|urlencode }}"
           class="btn btn-primary btn-sm">📋 Use as Target</a>
        <form method="post" action="/nfs/umount"
              onsubmit="return confirm('Unmount {{ m.mountpoint }}?')">
          <input type="hidden" name="mountpoint" value="{{ m.mountpoint }}" />
          <button class="btn btn-danger btn-sm" type="submit">⏏ Unmount</button>
        </form>
      </div>
    </div>
    {% endfor %}
  </div>
  {% else %}
  <div class="empty-state" style="margin-bottom:28px;">
    <div class="empty-icon">📡</div>
    <p>No NFS shares currently mounted.</p>
  </div>
  {% endif %}

  <!-- Mount new share form -->
  <h3 style="font-size:15px; font-weight:600; margin-bottom:14px;">➕ Mount New Share</h3>
  <div class="mount-form-card">
    <form method="post" action="/nfs/mount" id="mountForm">
      <div class="form-row-3" style="margin-bottom:14px;">
        <div class="form-group" style="margin:0;">
          <label class="form-label" for="server">NFS Server</label>
          <input id="server" class="form-control" type="text" name="server"
                 placeholder="e.g. 192.168.1.100" required />
        </div>
        <div class="form-group" style="margin:0;">
          <label class="form-label" for="export">Export Path</label>
          <input id="export" class="form-control" type="text" name="export"
                 placeholder="e.g. /mnt/backup" required />
        </div>
        <div class="form-group" style="margin:0;">
          <label class="form-label" for="nfs_version">NFS Version</label>
          <select id="nfs_version" class="form-control" name="nfs_version">
            <option value="4">NFSv4</option>
            <option value="3">NFSv3</option>
            <option value="">Auto</option>
          </select>
        </div>
      </div>

      <div class="form-row-2" style="margin-bottom:14px;">
        <div class="form-group" style="margin:0;">
          <label class="form-label" for="mountpoint">Mount Point (local path)</label>
          <input id="mountpoint" class="form-control" type="text" name="mountpoint"
                 placeholder="e.g. /mnt/nfs-backup" required />
        </div>
        <div class="form-group" style="margin:0;">
          <label class="form-label" for="extra_opts">Extra Options (optional)</label>
          <input id="extra_opts" class="form-control" type="text" name="extra_opts"
                 placeholder="e.g. ro,noatime" />
        </div>
      </div>

      <button type="submit" class="btn btn-primary" {% if not is_linux %}disabled title="Linux only"{% endif %}>
        📡 Mount Share
      </button>
      {% if not is_linux %}
      <span class="text-muted text-small" style="margin-left:10px;">Disabled on non-Linux</span>
      {% endif %}
    </form>
  </div>

</div>
{% endblock %}