/**
 * 多班级版班级管理系统 - 学生管理页JS
 * 
 * 开发者: Canglan
 * 版权归属: Sea Network Technology Studio
 * 
 * 版权所有 © Sea Network Technology Studio
 */

(function() {
'use strict';

const userRole = window.PAGE_CONFIG.role;
let currentPage = 1;
let totalPages = 1;

async function loadStudents(page = 1) {
    currentPage = page;
    const search = document.getElementById('searchInput').value;
    const res = await apiGet('/api/admin/students', { page, page_size: 20, search });
    
    if (res && res.success) {
        let html = '';
        res.data.students.forEach(student => {
            html += `<tr>
                <td><input type="checkbox" class="student-checkbox" data-id="${student.student_id}"></td>
                <td>${escapeHtml(student.student_no)}</td>
                <td><a href="/admin/history.php?student_id=${student.student_id}" class="link">${escapeHtml(student.name)}</a></td>
                <td>${escapeHtml(student.dormitory_number || '-')}</td>
                <td>${student.total_points}</td>
                ${userRole === '班主任' ? `<td>${student.parent_account ? student.parent_account.slice(0,3) + '******' + student.parent_account.slice(-2) : '-'}</td>` : ''}
                <td>
                    <div class="action-dropdown">
                        <button class="btn btn-sm btn-outline" onclick="showSinglePointsModal(${student.student_id}, '${escapeHtml(student.name)}')">加减分</button>
                        ${userRole === '班主任' ? `<button class="btn btn-sm action-dropdown-toggle" onclick="toggleActionDropdown(this)">更多 ▼</button>
                        <div class="action-dropdown-menu">
                            <a onclick="showEditStudentModal(${student.student_id}, '${escapeHtml(student.student_no)}', '${escapeHtml(student.name)}', '${escapeHtml(student.parent_account || '')}', '${escapeHtml(student.dormitory_number || '')}')">编辑</a>
                            <a onclick="showResetStudentPasswordModal(${student.student_id}, '${escapeHtml(student.name)}')">重置密码</a>
                            <a onclick="unlockStudent('${escapeHtml(student.student_no)}', '${escapeHtml(student.name)}')">解锁</a>
                            <a class="danger" onclick="deleteStudent(${student.student_id}, '${escapeHtml(student.name)}')">删除</a>
                        </div>` : ''}
                    </div>
                </td>
            </tr>`;
        });
        
        if (res.data.students.length === 0) {
            html = `<tr><td colspan="${userRole === '班主任' ? '7' : '6'}" style="text-align:center;">暂无学生数据</td></tr>`;
        }
        
        document.getElementById('studentList').innerHTML = html;
        
        totalPages = res.data.total_pages || 1;
        renderPagination();
    }
}

function renderPagination() {
    renderSmartPagination('pagination', currentPage, totalPages, function(page) {
        loadStudents(page);
    });
}

function showSinglePointsModal(studentId, studentName) {
    window.selectedStudentIds = [studentId];
    document.getElementById('selectedStudentsCount').innerHTML = `${studentName} (1人)`;
    document.getElementById('pointsChange').value = '';
    document.getElementById('pointsReason').value = '';
    document.getElementById('batchPointsModal').style.display = 'flex';
}

async function unlockStudent(studentNo, studentName) {
    if (!confirm(`确定要解除学生 "${studentName}" 的登录锁定吗？\n（适用于多次登录失败被禁止登录的情况）`)) {
        return;
    }
    
    const res = await apiPost('/api/admin/unlock-user', {
        username: studentNo
    });
    
    if (res && res.success) {
        showToast(res.message || '解锁成功');
    } else {
        showToast(res?.message || '解锁失败', 'error');
    }
}

loadStudents();

let searchTimeout;
document.getElementById('searchInput').addEventListener('input', () => {
    clearTimeout(searchTimeout);
    searchTimeout = setTimeout(() => loadStudents(1), 500);
});

window.loadStudents = loadStudents;
window.showSinglePointsModal = showSinglePointsModal;
window.unlockStudent = unlockStudent;

})();