{% extends 'grades/base.html' %}
{% block title %}学生管理{% endblock %}
{% block breadcrumb %}<li class="breadcrumb-item active">学生管理</li>{% endblock %}

{% block content %}
<div class="d-flex justify-content-between align-items-center mb-3">
    <h4><i class="bi bi-person-badge"></i> 学生管理</h4>
    <a href="{% url 'student_add' %}" class="btn btn-primary"><i class="bi bi-person-plus"></i> 添加学生</a>
</div>

<!-- 搜索 -->
<div class="card mb-3">
    <div class="card-body py-2">
        <form method="get" class="row g-2 align-items-end">
            <div class="col-md-3">
                <input type="text" name="keyword" class="form-control form-control-sm" placeholder="学号 / 姓名" value="{{ keyword }}">
            </div>
            <div class="col-md-3">
                <input type="text" name="class_name" class="form-control form-control-sm" placeholder="班级" value="{{ class_name }}">
            </div>
            <div class="col-md-3">
                <input type="text" name="major" class="form-control form-control-sm" placeholder="专业" value="{{ major }}">
            </div>
            <div class="col-md-3">
                <button type="submit" class="btn btn-primary btn-sm"><i class="bi bi-search"></i> 查询</button>
                <a href="{% url 'student_list' %}" class="btn btn-outline-secondary btn-sm">重置</a>
            </div>
        </form>
    </div>
</div>

<!-- 列表 -->
<div class="card">
    <div class="card-body p-0">
        <table class="table table-hover mb-0">
            <thead>
                <tr>
                    <th>#</th><th>学号</th><th>姓名</th><th>班级</th><th>专业</th><th>关联账号</th><th>操作</th>
                </tr>
            </thead>
            <tbody>
                {% for s in students %}
                <tr>
                    <td>{{ forloop.counter }}</td>
                    <td>{{ s.student_id }}</td>
                    <td>{{ s.name }}</td>
                    <td>{{ s.class_name|default:"-" }}</td>
                    <td>{{ s.major|default:"-" }}</td>
                    <td>
                        {% if s.user %}
                        <span class="badge bg-success">{{ s.user.username }}</span>
                        {% else %}
                        <span class="badge bg-secondary">未关联</span>
                        {% endif %}
                    </td>
                    <td>
                        <a href="{% url 'student_edit' s.pk %}" class="btn btn-sm btn-outline-primary"><i class="bi bi-pencil"></i></a>
                        <form method="post" action="{% url 'student_delete' s.pk %}" class="d-inline"
                              onsubmit="return confirm('确定删除学生 {{ s.name }}？关联成绩将一并删除！')">
                            {% csrf_token %}
                            <button class="btn btn-sm btn-outline-danger"><i class="bi bi-trash"></i></button>
                        </form>
                    </td>
                </tr>
                {% empty %}
                <tr><td colspan="7" class="text-center text-muted py-3">暂无学生数据</td></tr>
                {% endfor %}
            </tbody>
        </table>
    </div>
</div>
<div class="mt-2 text-muted small">共 {{ students|length }} 条记录</div>
{% endblock %}