{% extends "base.html" %}
{% load form_helpers %}

{% block title %}Import Device Assignments{% endblock title %}

{% block content %}
<div class="row">
    <div class="col-md-8">
        <h1>Import Device Assignments</h1>
        <p class="text-muted">
            Upload a CSV file with columns <code>device</code> and <code>function_code</code>.
            Use the device name or UUID. Leave <code>function_code</code> empty to clear an assignment.
        </p>

        <form method="post" enctype="multipart/form-data" class="form">
            {% csrf_token %}
            {% render_form form %}
            <button type="submit" class="btn btn-primary">Import</button>
            <a href="{{ export_template_url }}" class="btn btn-default">Download Template</a>
            <a href="{{ export_current_url }}" class="btn btn-default">Export Current Assignments</a>
        </form>
    </div>
</div>

{% if result %}
<div class="row mt-4">
    <div class="col-md-12">
        <div class="card">
            <div class="card-header">
                <strong>Import Results</strong>
            </div>
            <div class="card-body">
                <p>{{ result.summary }}</p>
                <table class="table table-sm table-hover">
                    <thead>
                        <tr>
                            <th>Row</th>
                            <th>Device</th>
                            <th>Function Code</th>
                            <th>Status</th>
                            <th>Message</th>
                        </tr>
                    </thead>
                    <tbody>
                        {% for row in result.rows %}
                        <tr>
                            <td>{{ row.row_number }}</td>
                            <td>{{ row.device_name }}</td>
                            <td>{{ row.function_code_slug|default:"—" }}</td>
                            <td>{{ row.status }}</td>
                            <td>{{ row.message }}</td>
                        </tr>
                        {% empty %}
                        <tr>
                            <td colspan="5" class="text-muted">No rows processed.</td>
                        </tr>
                        {% endfor %}
                    </tbody>
                </table>
            </div>
        </div>
    </div>
</div>
{% endif %}
{% endblock content %}