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

{% block content %}
<div class="d-flex justify-content-between align-items-center mb-3">
    <h4><i class="bi bi-people"></i> 用户管理</h4>
    <a href="{% url 'user_add' %}" class="btn btn-primary"><i class="bi bi-person-plus"></i> 添加用户</a>
</div>

<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-4">
                <input type="text" name="keyword" class="form-control form-control-sm" placeholder="用户名 / 邮箱" value="{{ keyword }}">
            </div>
            <div class="col-md-4">
                <select name="role" class="form-select form-select-sm">
                    <option value="">-- 角色 --</option>
                    <option value="admin" {% if role == 'admin' %}selected{% endif %}>管理员</option>
                    <option value="teacher" {% if role == 'teacher' %}selected{% endif %}>教师</option>
                    <option value="student" {% if role == 'student' %}selected{% endif %}>学生</option>
                </select>
            </div>
            <div class="col-md-4">
                <button type="submit" class="btn btn-primary btn-sm"><i class="bi bi-search"></i> 查询</button>
                <a href="{% url 'user_list' %}" class="btn btn-outline-secondary btn-sm">重置</a>
            </div>
        </form>
    </div>
</div>

<div class="card">
    <div class="card-body p-0">
        <table class="table table-hover mb-0">
            <thead>
                <tr><th>#</th><th>用户名</th><th>邮箱</th><th>角色</th><th>状态</th><th>注册时间</th><th>操作</th></tr>
            </thead>
            <tbody>
                {% for u in users %}
                <tr>
                    <td>{{ forloop.counter }}</td>
                    <td>{{ u.obj.username }}</td>
                    <td>{{ u.obj.email|default:"-" }}</td>
                    <td>
                        <span class="badge {% if u.role == '管理员' %}bg-danger{% elif u.role == '教师' %}bg-primary{% else %}bg-success{% endif %}">
                            {{ u.role }}
                        </span>
                    </td>
                    <td>
                        {% if u.obj.is_active %}
                        <span class="badge bg-success">启用</span>
                        {% else %}
                        <span class="badge bg-secondary">禁用</span>
                        {% endif %}
                    </td>
                    <td>{{ u.obj.date_joined|date:"Y-m-d H:i" }}</td>
                    <td>
                        <a href="{% url 'user_edit' u.obj.pk %}" class="btn btn-sm btn-outline-primary" title="编辑"><i class="bi bi-pencil"></i></a>
                        <!-- 重置密码 -->
                        <button class="btn btn-sm btn-outline-warning" title="重置密码"
                                data-bs-toggle="modal" data-bs-target="#resetModal{{ u.obj.pk }}">
                            <i class="bi bi-key"></i>
                        </button>
                        {% if u.obj != request.user %}
                        <form method="post" action="{% url 'user_delete' u.obj.pk %}" class="d-inline"
                              onsubmit="return confirm('确定删除用户 {{ u.obj.username }}？')">
                            {% csrf_token %}
                            <button class="btn btn-sm btn-outline-danger" title="删除"><i class="bi bi-trash"></i></button>
                        </form>
                        {% endif %}
                    </td>
                </tr>

                <!-- 重置密码弹窗 -->
                <div class="modal fade" id="resetModal{{ u.obj.pk }}" tabindex="-1">
                    <div class="modal-dialog modal-sm">
                        <div class="modal-content">
                            <form method="post" action="{% url 'user_reset_password' u.obj.pk %}">
                                {% csrf_token %}
                                <div class="modal-header"><h6 class="modal-title">重置密码 - {{ u.obj.username }}</h6></div>
                                <div class="modal-body">
                                    <input type="password" name="new_password" class="form-control" placeholder="新密码（至少6位）" required minlength="6">
                                </div>
                                <div class="modal-footer">
                                    <button type="button" class="btn btn-sm btn-secondary" data-bs-dismiss="modal">取消</button>
                                    <button type="submit" class="btn btn-sm btn-warning">确认重置</button>
                                </div>
                            </form>
                        </div>
                    </div>
                </div>
                {% empty %}
                <tr><td colspan="7" class="text-center text-muted py-3">暂无用户数据</td></tr>
                {% endfor %}
            </tbody>
        </table>
    </div>
</div>
<div class="mt-2 text-muted small">共 {{ users|length }} 条记录</div>
{% endblock %}