{% extends 'base.html' %}

{% block title %}Invoices - Optinet Global Links{% endblock %}

{% block content %}
<div class="container-fluid">
    <div class="row">
        <div class="col-12">
            <div class="d-flex justify-content-between align-items-center mb-4">
                <h2>Invoices</h2>
                <div>
                    <a href="{% url 'billing:create_invoice' %}" class="btn btn-primary">
                        <i class="bi bi-plus"></i> Create Invoice
                    </a>
                    <a href="{% url 'billing:generate_recurring' %}" class="btn btn-success">
                        <i class="bi bi-arrow-clockwise"></i> Generate Recurring
                    </a>
                </div>
            </div>

            <!-- Filters -->
            <div class="card mb-4">
                <div class="card-body">
                    <form method="get" class="row g-3">
                        <div class="col-md-3">
                            <select name="status" class="form-select">
                                <option value="">All Statuses</option>
                                <option value="unpaid" {% if status_filter == 'unpaid' %}selected{% endif %}>Unpaid</option>
                                <option value="paid" {% if status_filter == 'paid' %}selected{% endif %}>Paid</option>
                                <option value="overdue" {% if status_filter == 'overdue' %}selected{% endif %}>Overdue</option>
                            </select>
                        </div>
                        <div class="col-md-3">
                            <select name="customer" class="form-select">
                                <option value="">All Customers</option>
                                {% for customer in customers %}
                                <option value="{{ customer.id }}" {% if customer_filter == customer.id|stringformat:"s" %}selected{% endif %}>
                                    {{ customer.full_name }}
                                </option>
                                {% endfor %}
                            </select>
                        </div>
                        <div class="col-md-2">
                            <button type="submit" class="btn btn-outline-primary">Filter</button>
                        </div>
                    </form>
                </div>
            </div>

            <!-- Invoice Table -->
            <div class="card dashboard-card">
                <div class="card-body">
                    <div class="table-responsive">
                        <table class="table table-striped">
                            <thead>
                                <tr>
                                    <th>Invoice #</th>
                                    <th>Customer</th>
                                    <th>Amount</th>
                                    <th>Status</th>
                                    <th>Due Date</th>
                                    <th>Actions</th>
                                </tr>
                            </thead>
                            <tbody>
                                {% for invoice in page_obj %}
                                <tr>
                                    <td>{{ invoice.invoice_number }}</td>
                                    <td>{{ invoice.customer.full_name }}</td>
                                    <td>KSh {{ invoice.total_amount }}</td>
                                    <td>
                                        <span class="badge bg-{% if invoice.status == 'paid' %}success{% elif invoice.status == 'overdue' %}danger{% else %}warning{% endif %}">
                                            {{ invoice.get_status_display }}
                                        </span>
                                    </td>
                                    <td>{{ invoice.due_date }}</td>
                                    <td>
                                        <a href="{% url 'billing:invoice_detail' invoice.invoice_number %}" class="btn btn-sm btn-outline-primary">
                                            View
                                        </a>
                                    </td>
                                </tr>
                                {% empty %}
                                <tr>
                                    <td colspan="6" class="text-center">No invoices found.</td>
                                </tr>
                                {% endfor %}
                            </tbody>
                        </table>
                    </div>

                    <!-- Pagination -->
                    {% if page_obj.has_other_pages %}
                    <nav>
                        <ul class="pagination justify-content-center">
                            {% if page_obj.has_previous %}
                                <li class="page-item">
                                    <a class="page-link" href="?page={{ page_obj.previous_page_number }}">Previous</a>
                                </li>
                            {% endif %}

                            {% for num in page_obj.paginator.page_range %}
                                {% if page_obj.number == num %}
                                    <li class="page-item active">
                                        <span class="page-link">{{ num }}</span>
                                    </li>
                                {% else %}
                                    <li class="page-item">
                                        <a class="page-link" href="?page={{ num }}">{{ num }}</a>
                                    </li>
                                {% endif %}
                            {% endfor %}

                            {% if page_obj.has_next %}
                                <li class="page-item">
                                    <a class="page-link" href="?page={{ page_obj.next_page_number }}">Next</a>
                                </li>
                            {% endif %}
                        </ul>
                    </nav>
                    {% endif %}
                </div>
            </div>
        </div>
    </div>
</div>
{% endblock %}