{% comment %}
Reusable pagination component with accessibility and responsive design.
Usage: {% include 'components/pagination.html' with page_obj=page_obj %}
{% endcomment %}

{% if page_obj.has_other_pages %}
<nav class="bg-white px-4 py-3 flex items-center justify-between border-t border-gray-200 sm:px-6" aria-label="Pagination">
    <div class="hidden sm:block">
        <p class="text-sm text-gray-700">
            Showing
            <span class="font-medium">{{ page_obj.start_index }}</span>
            to
            <span class="font-medium">{{ page_obj.end_index }}</span>
            of
            <span class="font-medium">{{ page_obj.paginator.count }}</span>
            results
        </p>
    </div>
    
    <div class="flex-1 flex justify-between sm:justify-end">
        {% if page_obj.has_previous %}
        <a 
            href="?{% if request.GET.urlencode %}{{ request.GET.urlencode }}&{% endif %}page={{ page_obj.previous_page_number }}"
            class="relative inline-flex items-center px-4 py-2 border border-gray-300 text-sm font-medium rounded-md text-gray-700 bg-white hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-500 transition-colors"
            aria-label="Go to previous page"
        >
            <svg class="mr-2 h-5 w-5" fill="currentColor" viewBox="0 0 20 20">
                <path fill-rule="evenodd" d="M12.707 5.293a1 1 0 010 1.414L9.414 10l3.293 3.293a1 1 0 01-1.414 1.414l-4-4a1 1 0 010-1.414l4-4a1 1 0 011.414 0z" clip-rule="evenodd" />
            </svg>
            Previous
        </a>
        {% else %}
        <span class="relative inline-flex items-center px-4 py-2 border border-gray-300 text-sm font-medium rounded-md text-gray-400 bg-gray-100 cursor-not-allowed">
            <svg class="mr-2 h-5 w-5" fill="currentColor" viewBox="0 0 20 20">
                <path fill-rule="evenodd" d="M12.707 5.293a1 1 0 010 1.414L9.414 10l3.293 3.293a1 1 0 01-1.414 1.414l-4-4a1 1 0 010-1.414l4-4a1 1 0 011.414 0z" clip-rule="evenodd" />
            </svg>
            Previous
        </span>
        {% endif %}
        
        <!-- Page numbers for larger screens -->
        <div class="hidden md:flex">
            {% for num in page_obj.paginator.page_range %}
                {% if num == page_obj.number %}
                <span class="relative inline-flex items-center px-4 py-2 border border-blue-500 bg-blue-50 text-sm font-medium text-blue-600 mx-1">
                    {{ num }}
                </span>
                {% elif num > page_obj.number|add:'-3' and num < page_obj.number|add:'3' %}
                <a 
                    href="?{% if request.GET.urlencode %}{{ request.GET.urlencode }}&{% endif %}page={{ num }}"
                    class="relative inline-flex items-center px-4 py-2 border border-gray-300 bg-white text-sm font-medium text-gray-700 hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-500 mx-1 transition-colors"
                    aria-label="Go to page {{ num }}"
                >
                    {{ num }}
                </a>
                {% elif num == 1 or num == page_obj.paginator.num_pages %}
                <a 
                    href="?{% if request.GET.urlencode %}{{ request.GET.urlencode }}&{% endif %}page={{ num }}"
                    class="relative inline-flex items-center px-4 py-2 border border-gray-300 bg-white text-sm font-medium text-gray-700 hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-500 mx-1 transition-colors"
                    aria-label="Go to page {{ num }}"
                >
                    {{ num }}
                </a>
                {% elif num == page_obj.number|add:'-4' or num == page_obj.number|add:'4' %}
                <span class="relative inline-flex items-center px-4 py-2 border border-gray-300 bg-white text-sm font-medium text-gray-500 mx-1">
                    ...
                </span>
                {% endif %}
            {% endfor %}
        </div>
        
        {% if page_obj.has_next %}
        <a 
            href="?{% if request.GET.urlencode %}{{ request.GET.urlencode }}&{% endif %}page={{ page_obj.next_page_number }}"
            class="ml-3 relative inline-flex items-center px-4 py-2 border border-gray-300 text-sm font-medium rounded-md text-gray-700 bg-white hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-500 transition-colors"
            aria-label="Go to next page"
        >
            Next
            <svg class="ml-2 h-5 w-5" fill="currentColor" viewBox="0 0 20 20">
                <path fill-rule="evenodd" d="M7.293 14.707a1 1 0 010-1.414L10.586 10 7.293 6.707a1 1 0 011.414-1.414l4 4a1 1 0 010 1.414l-4 4a1 1 0 01-1.414 0z" clip-rule="evenodd" />
            </svg>
        </a>
        {% else %}
        <span class="ml-3 relative inline-flex items-center px-4 py-2 border border-gray-300 text-sm font-medium rounded-md text-gray-400 bg-gray-100 cursor-not-allowed">
            Next
            <svg class="ml-2 h-5 w-5" fill="currentColor" viewBox="0 0 20 20">
                <path fill-rule="evenodd" d="M7.293 14.707a1 1 0 010-1.414L10.586 10 7.293 6.707a1 1 0 011.414-1.414l4 4a1 1 0 010 1.414l-4 4a1 1 0 01-1.414 0z" clip-rule="evenodd" />
            </svg>
        </span>
        {% endif %}
    </div>
</nav>
{% endif %}