// 高级搜索功能
let isAdvancedSearchVisible = false;

function toggleAdvancedSearch() {
    console.log('toggleAdvancedSearch called'); // 调试信息
    
    const advancedArea = document.getElementById('advancedSearchArea');
    const toggleButton = document.querySelector('button[onclick="toggleAdvancedSearch()"]');
    
    if (!advancedArea) {
        console.error('找不到高级搜索区域元素');
        return;
    }
    
    if (!toggleButton) {
        console.error('找不到高级搜索切换按钮');
        return;
    }
    
    if (isAdvancedSearchVisible) {
        // 隐藏高级搜索
        advancedArea.style.display = 'none';
        toggleButton.innerHTML = '<i class="fas fa-cog"></i>';
        toggleButton.title = '高级搜索';
        toggleButton.classList.remove('btn-info');
        toggleButton.classList.add('btn-outline-info');
        isAdvancedSearchVisible = false;
        console.log('高级搜索已隐藏');
    } else {
        // 显示高级搜索
        advancedArea.style.display = 'block';
        toggleButton.innerHTML = '<i class="fas fa-times"></i>';
        toggleButton.title = '关闭高级搜索';
        toggleButton.classList.remove('btn-outline-info');
        toggleButton.classList.add('btn-info');
        isAdvancedSearchVisible = true;
        console.log('高级搜索已显示');
    }
}

// 导师选择功能
function selectAllSupervisors() {
    const checkboxes = document.querySelectorAll('.supervisor-checkboxes input[type="checkbox"]');
    checkboxes.forEach(checkbox => {
        checkbox.checked = true;
    });
    updateSupervisorCount();
}

function clearAllSupervisors() {
    const checkboxes = document.querySelectorAll('.supervisor-checkboxes input[type="checkbox"]');
    checkboxes.forEach(checkbox => {
        checkbox.checked = false;
    });
    updateSupervisorCount();
}

// 年级选择功能
function selectAllGrades() {
    const checkboxes = document.querySelectorAll('.grade-checkboxes input[type="checkbox"]');
    checkboxes.forEach(checkbox => {
        checkbox.checked = true;
    });
    updateGradeCount();
}

function clearAllGrades() {
    const checkboxes = document.querySelectorAll('.grade-checkboxes input[type="checkbox"]');
    checkboxes.forEach(checkbox => {
        checkbox.checked = false;
    });
    updateGradeCount();
}

// 更新导师选择计数
function updateSupervisorCount() {
    const checkedCount = document.querySelectorAll('.supervisor-checkboxes input[type="checkbox"]:checked').length;
    const label = document.querySelector('.supervisor-checkboxes').previousElementSibling;
    if (label) {
        if (checkedCount > 0) {
            label.innerHTML = `导师（已选${checkedCount}个）`;
            label.classList.add('text-primary');
        } else {
            label.innerHTML = '导师（多选）';
            label.classList.remove('text-primary');
        }
    }
}

// 更新年级选择计数
function updateGradeCount() {
    const checkedCount = document.querySelectorAll('.grade-checkboxes input[type="checkbox"]:checked').length;
    const label = document.querySelector('.grade-checkboxes').previousElementSibling;
    if (label) {
        if (checkedCount > 0) {
            label.innerHTML = `年级（已选${checkedCount}个）`;
            label.classList.add('text-primary');
        } else {
            label.innerHTML = '年级（多选）';
            label.classList.remove('text-primary');
        }
    }
}

// 检查是否有高级搜索条件被选中
function hasAdvancedSearchFilters() {
    const supervisorChecked = document.querySelectorAll('.supervisor-checkboxes input[type="checkbox"]:checked').length > 0;
    const gradeChecked = document.querySelectorAll('.grade-checkboxes input[type="checkbox"]:checked').length > 0;
    return supervisorChecked || gradeChecked;
}

// 智能搜索提示
function setupSearchHints() {
    const supervisorCheckboxes = document.querySelectorAll('.supervisor-checkboxes input[type="checkbox"]');
    const gradeCheckboxes = document.querySelectorAll('.grade-checkboxes input[type="checkbox"]');
    
    // 导师搜索计数提示
    supervisorCheckboxes.forEach(checkbox => {
        checkbox.addEventListener('change', updateSupervisorCount);
    });
    
    // 年级搜索计数提示
    gradeCheckboxes.forEach(checkbox => {
        checkbox.addEventListener('change', updateGradeCount);
    });
}

// 清空所有筛选条件
function clearAllFilters() {
    // 清空基本搜索
    const startDate = document.getElementById('start_date');
    const endDate = document.getElementById('end_date');
    const studentSearch = document.getElementById('student_search');
    const sortBy = document.getElementById('sort_by');
    
    if (startDate) startDate.value = '';
    if (endDate) endDate.value = '';
    if (studentSearch) studentSearch.value = '';
    if (sortBy) sortBy.value = 'week_start_date_desc';
    
    // 清空高级搜索
    clearAllSupervisors();
    clearAllGrades();
    
    // 提交表单
    const form = document.getElementById('searchForm');
    if (form) {
        form.submit();
    }
}

// 导出当前筛选结果
function exportCurrentFilter() {
    const form = document.getElementById('searchForm');
    if (!form) {
        console.error('找不到搜索表单');
        return;
    }
    
    const formData = new FormData(form);
    const params = new URLSearchParams();
    
    for (let [key, value] of formData.entries()) {
        params.append(key, value);
    }
    
    params.set('export', 'excel');
    
    const exportUrl = window.location.pathname + '?' + params.toString();
    console.log('导出URL:', exportUrl);
    
    window.location.href = exportUrl;
}

// 页面加载完成后的初始化
document.addEventListener('DOMContentLoaded', function() {
    console.log('admin.js: 页面加载完成，开始初始化');
    
    // 检查高级搜索区域是否存在
    const advancedArea = document.getElementById('advancedSearchArea');
    if (!advancedArea) {
        console.warn('高级搜索区域不存在，可能模板未正确更新');
        return;
    }
    
    // 设置搜索提示
    setupSearchHints();
    
    // 检查URL参数，如果有高级搜索参数则自动展开
    const urlParams = new URLSearchParams(window.location.search);
    const hasSupervisorParam = urlParams.getAll('supervisor').length > 0;
    const hasGradeParam = urlParams.getAll('grade').length > 0;
    
    if (hasSupervisorParam || hasGradeParam || hasAdvancedSearchFilters()) {
        console.log('检测到高级搜索参数，自动展开');
        toggleAdvancedSearch();
    }
    
    // 初始化计数显示
    setTimeout(() => {
        updateSupervisorCount();
        updateGradeCount();
    }, 100);
    
    console.log('admin.js: 初始化完成');
});