{% extends "admin/base_site.html" %}
{% block page_title %}{{ title }}{% endblock %}
{% load static %}
{% block extrastyle %}
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css"
          rel="stylesheet" />
    <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.4/css/all.min.css"
          rel="stylesheet" />
    <style>
    .page-header {
        background-color: #f8f9fa;
        padding: 1rem;
        margin-bottom: 2rem;
        border-bottom: 1px solid #dee2e6;
    }

    .card {
        box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
        border-radius: 0.5rem;
        border: none;
    }

    .table {
        margin-bottom: 0;
    }

    .table thead th {
        background-color: #f8f9fa;
        border-bottom: 2px solid #dee2e6;
        color: #495057;
        font-weight: 600;
        text-transform: uppercase;
        font-size: 0.875rem;
    }

    .table td {
        vertical-align: middle;
    }

    .btn-action {
        padding: 0.375rem 0.75rem;
        font-size: 0.875rem;
        border-radius: 0.25rem;
        transition: all 0.2s ease-in-out;
    }

    .btn-edit {
        background-color: #ffc107;
        border-color: #ffc107;
        color: #000;
    }

    .btn-edit:hover {
        background-color: #e0a800;
        border-color: #d39e00;
        color: #000;
    }

    .btn-delete {
        background-color: #dc3545;
        border-color: #dc3545;
        color: #fff;
    }

    .btn-delete:hover {
        background-color: #c82333;
        border-color: #bd2130;
    }

    .empty-state {
        padding: 3rem;
        text-align: center;
        background-color: #f8f9fa;
        border-radius: 0.5rem;
    }

    .empty-state-icon {
        font-size: 3rem;
        color: #6c757d;
        margin-bottom: 1rem;
    }

    .search-box {
        max-width: 300px;
    }
    </style>
{% endblock %}
{% block content %}
    <div class="page-header">
        <div class="container-fluid">
            <div class="row align-items-center">
                <div class="col">
                    <h1 class="h3 mb-0">Manage Subjects</h1>
                </div>
                <div class="col-auto">
                    <a href="{% url 'add_subject' %}" class="btn btn-primary">
                        <i class="fas fa-plus me-1"></i> Add New Subject
                    </a>
                </div>
            </div>
        </div>
    </div>
    <div class="container-fluid">
        <div class="card">
            <div class="card-body">
                <!-- Search and Filter -->
                <div class="row mb-4">
                    <div class="col-md-6">
                        <div class="search-box">
                            <input type="text"
                                   class="form-control"
                                   id="subjectSearch"
                                   placeholder="Search subjects..." />
                        </div>
                    </div>
                </div>
                {% if subjects %}
                    <div class="table-responsive">
                        <table class="table table-hover">
                            <thead>
                                <tr>
                                    <th width="5%">S.N</th>
                                    <th width="25%">Subject Name</th>
                                    <th width="20%">Course</th>
                                    <th width="20%">Duration</th>
                                    <th width="20%">Actions</th>
                                </tr>
                            </thead>
                            <tbody>
                                {% for subject in subjects %}
                                    <tr>
                                        <td>{{ forloop.counter }}</td>
                                        <td>{{ subject.name }}</td>
                                        <td>{{ subject.course.name }}</td>
                                        <td>
                                            {{ subject.duration }}
                                            {% if subject.course.course_type == 'semester' %}
                                                Semesters
                                            {% else %}
                                                Years
                                            {% endif %}
                                        </td>
                                        <td>
                                            <a href="{% url 'edit_subject' subject.id %}"
                                               class="btn btn-action btn-edit me-2">
                                                <i class="fas fa-edit me-1"></i>Edit
                                            </a>
                                            <a href="{% url 'delete_subject' subject.id %}"
                                               class="btn btn-action btn-delete">
                                                <i class="fas fa-trash-alt me-1"></i>Delete
                                            </a>
                                        </td>
                                    </tr>
                                {% endfor %}
                            </tbody>
                        </table>
                    </div>
                {% else %}
                    <div class="empty-state">
                        <i class="fas fa-book empty-state-icon"></i>
                        <h3>No Subjects Found</h3>
                        <p class="text-muted">Start by adding your first subject using the button above.</p>
                    </div>
                {% endif %}
            </div>
        </div>
    </div>
    {% block extrajs %}
        <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js"></script>
        <script>
    document
        .getElementById("subjectSearch")
        .addEventListener("keyup", function () {
            const searchText = this.value.toLowerCase();
            const tableRows = document.querySelectorAll("tbody tr");

            tableRows.forEach((row) => {
                const subjectName = row.cells[1].textContent.toLowerCase();
                const courseName = row.cells[2].textContent.toLowerCase();

                if (subjectName.includes(searchText) || courseName.includes(searchText)) {
                    row.style.display = "";
                } else {
                    row.style.display = "none";
                }
            });
        });
        </script>
    {% endblock %}
{% endblock %}