{% extends "base.html" %}

{% block content %}
<div class="row">
    <div class="col-lg-10 mx-auto">
        <div class="d-flex justify-content-between align-items-center flex-wrap gap-2 mb-3">
            <h1 class="h5 mb-0">🔍 Finger Command</h1>
            <!-- GET so the search lands on a cacheable URL; JS sends it straight
                 to /finger/<term>, and without JS the server redirects there. -->
            <form method="GET" action="{{ url_for('finger') }}" class="d-flex" role="search"
                  onsubmit="return gotoFinger(event)">
                <input type="text" class="form-control form-control-sm me-2" id="username" name="username"
                       value="{{ username or '' }}"
                       placeholder="user@domain.com"
                       pattern="[a-zA-Z0-9.\-_@]*"
                       title="Alphanumeric characters, dots, hyphens, underscores, and @ symbol allowed"
                       style="max-width: 260px;">
                <button type="submit" class="btn btn-sm btn-primary">
                    <i class="fas fa-search"></i> Finger
                </button>
            </form>
        </div>

        <div class="card">
            <div class="card-header d-flex justify-content-between align-items-center">
                <h5 class="mb-0">
                    {% if username %}
                        Results for "{{ username }}"
                    {% else %}
                        System Users
                    {% endif %}
                </h5>
            </div>
            <div class="card-body">
                {% if error %}
                    <div class="alert alert-danger" role="alert">
                        <i class="fas fa-exclamation-triangle"></i>
                        <strong>Error:</strong> {{ error }}
                    </div>
                {% elif result %}
                    <div class="finger-output">
                        <pre class="rounded mb-0"><code>{{ result }}</code></pre>
                    </div>
                {% else %}
                    <div class="text-center text-muted py-5">
                        <i class="fas fa-terminal fa-3x mb-3"></i>
                        <p>No information available.</p>
                    </div>
                {% endif %}
            </div>
        </div>
    </div>
</div>

<script>
// Navigate straight to the cacheable /finger/<term> path so the nginx response
// cache is hit for repeated lookups (avoids a redirect round-trip).
function gotoFinger(event) {
    var term = document.getElementById('username').value.trim();
    if (!term) { return true; }  // empty -> let GET /finger list system users
    event.preventDefault();
    window.location.href = "{{ url_for('finger') }}/" + encodeURIComponent(term);
    return false;
}

function clearForm() {
    document.getElementById('username').value = '';
    // Optionally reload the page to clear results
    window.location.href = "{{ url_for('finger') }}";
}
</script>
{% endblock %}