{% extends "admin/base_site.html" %}
{% load admin_urls static %}

{% block content %}
<div id="content-main">
    <div class="module">
        <h1>Hardware Layout Overview</h1>
        <p class="help">Active chassis grouped by manufacturer and network address.</p>

        {% for manufacturer in hardware_layout.manufacturers %}
        <div class="manufacturer-section">
            <h2>{{ manufacturer.name }}</h2>
            {% for location in manufacturer.locations %}
            <div class="location-section">
                <h3>{{ location.name }}</h3>
                <div class="channels-frequency-grid">
                    {% for chassis in location.chassis %}
                        {% for channel in chassis.channels %}
                        <div class="channel-frequency-card">
                            <div class="channel-number">CH {{ channel.channel_number }}</div>
                            {% if channel.frequency %}
                            <div class="frequency">{{ channel.frequency }}</div>
                            {% else %}
                            <div class="no-frequency">-</div>
                            {% endif %}
                        </div>
                        {% endfor %}
                    {% endfor %}
                </div>
            </div>
            {% endfor %}
        </div>
        {% empty %}
        <p>No active receivers found.</p>
        {% endfor %}
    </div>
</div>
{% endblock %}

{% block extrastyle %}
<style>
.manufacturer-section {
    margin-bottom: 40px;
    border: 1px solid #ddd;
    border-radius: 8px;
    overflow: hidden;
}

.manufacturer-section h2 {
    background: #f8f9fa;
    margin: 0;
    padding: 15px 20px;
    border-bottom: 1px solid #ddd;
    font-size: 1.4em;
    color: #495057;
}

.location-section {
    margin: 20px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 6px;
}

.location-section h3 {
    margin: 0 0 15px 0;
    font-size: 1.2em;
    color: #6c757d;
    font-weight: normal;
}

.channels-frequency-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 10px;
}

.channel-frequency-card {
    background: white;
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 10px;
    text-align: center;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.channel-number {
    font-weight: bold;
    font-size: 1.1em;
    color: #007bff;
    margin-bottom: 5px;
}

.frequency {
    font-family: monospace;
    font-size: 1em;
    color: #28a745;
    font-weight: bold;
}

.no-frequency {
    color: #6c757d;
    font-style: italic;
}
</style>
{% endblock %}