/**
 * 班级操行分管理系统 - 作业扣分页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 hwRole = window.PAGE_CONFIG.role;

// 初始化扣分配置
const hwMaxPoints = hwRole === '班主任' ? 100 : 5;
const hwNotSubmit = window.DEDUCTION_HOMEWORK_NOT_SUBMIT || 2;
const hwLate = window.DEDUCTION_HOMEWORK_LATE || 1;

// 更新页面中的配置值显示
document.querySelectorAll('.hw-not-submit').forEach(el => el.textContent = hwNotSubmit);
document.querySelectorAll('.hw-late').forEach(el => el.textContent = hwLate);
document.querySelectorAll('.hw-max').forEach(el => el.textContent = hwMaxPoints);

// 更新输入框的 min/max
document.getElementById('pointsChange').setAttribute('min', -hwMaxPoints);
document.getElementById('pointsChange').setAttribute('max', hwMaxPoints);

// 加载科目列表（学习委员）
async function loadSubjectsForHomework() {
    const subjectSelect = document.getElementById('hwSubjectSelect');
    if (!subjectSelect) return;
    const res = await apiGet('/api/subject/list');
    if (res && res.success && res.data && res.data.subjects) {
        let html = '<option value="">不选择科目</option>';
        res.data.subjects.forEach(s => {
            html += `<option value="${escapeHtml(s.subject_name)}">${escapeHtml(s.subject_name)}</option>`;
        });
        subjectSelect.innerHTML = html;
    }
}

async function loadStudents() {
    const res = await apiGet('/api/admin/students', {page_size: 1000});
    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>${escapeHtml(student.name)}</td>
                <td>${student.total_points}</td>
                <td><button class="btn btn-sm btn-outline" onclick="showSinglePointsModal(${student.student_id}, '${escapeHtml(student.name)}')">加减分</button></td>
            </tr>`;
        });
        if (res.data.students.length === 0) {
            html = '<tr><td colspan="5" style="text-align:center;">暂无学生数据</td></tr>';
        }
        document.getElementById('studentList').innerHTML = html;
    }
}

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';
}

function handleSubmitPoints() {
    const pointsChange = parseInt(document.getElementById('pointsChange').value);
    if (isNaN(pointsChange) || pointsChange === 0) {
        showToast('请输入有效的加减分值', 'warning');
        return;
    }
    if (Math.abs(pointsChange) > hwMaxPoints) {
        showToast(`每次加减分不超过${hwMaxPoints}分`, 'warning');
        return;
    }
    
    // 学习委员附加科目前缀、具体作业和缴交时间
    if (hwRole === '学习委员' || hwRole === '班主任') {
        const subjectSelect = document.getElementById('hwSubjectSelect');
        const subjectName = subjectSelect ? subjectSelect.value : '';
        const hwTitle = document.getElementById('hwTitle').value.trim();
        const hwDeadline = document.getElementById('hwDeadline').value;
        const reasonEl = document.getElementById('pointsReason');
        
        let prefix = '';
        if (subjectName) {
            prefix = `[${subjectName}]`;
        }
        if (hwTitle) {
            prefix += `[${hwTitle}]`;
        }
        if (hwDeadline) {
            prefix += ` 缴交:${hwDeadline}`;
        }
        if (prefix) {
            reasonEl.value = prefix + ' ' + reasonEl.value;
        }
    }
    
    submitBatchPoints({ related_type: 'homework' });
}

// ========== 科目管理功能 ==========

function toggleSubjectPanel() {
    const content = document.getElementById('subjectPanelContent');
    const toggle = document.getElementById('subjectPanelToggle');
    if (!content || !toggle) return;
    
    const isExpanded = content.classList.contains('expanded');
    if (isExpanded) {
        content.classList.remove('expanded');
        toggle.classList.remove('expanded');
        toggle.textContent = '▶ 展开';
    } else {
        content.classList.add('expanded');
        toggle.classList.add('expanded');
        toggle.textContent = '▼ 收起';
        loadSubjectList();
    }
}

async function loadSubjectList() {
    const res = await apiGet('/api/subject/list', { is_active: true });
    if (res && res.success && res.data) {
        let html = '';
        const subjects = res.data.subjects || [];
        subjects.forEach(sub => {
            const safeName = escapeHtml(sub.subject_name || '');
            const safeCode = escapeHtml(sub.subject_code || '');
            const sortOrder = sub.sort_order || 0;
            html += `
                <div class="subject-item">
                    <span class="subject-name">${safeName}</span>
                    <span class="subject-code">${safeCode}</span>
                    <span class="subject-status ${sub.is_active ? 'subject-status-active' : 'subject-status-inactive'}">
                        ${sub.is_active ? '启用' : '禁用'}
                    </span>
                    <button class="btn btn-sm btn-outline" onclick="showEditSubjectModal(${sub.subject_id}, '${safeName.replace(/'/g, "\\'")}', '${safeCode.replace(/'/g, "\\'")}', ${sortOrder})">编辑</button>
                    <button class="btn btn-sm btn-ghost" onclick="toggleSubjectStatus(${sub.subject_id}, ${sub.is_active ? 'false' : 'true'})">
                        ${sub.is_active ? '禁用' : '启用'}
                    </button>
                    <button class="btn btn-sm btn-outline-danger" onclick="deleteSubject(${sub.subject_id})">删除</button>
                </div>
            `;
        });
        if (subjects.length === 0) {
            html = '<p style="text-align:center;padding:40px;">暂无科目，请点击"添加科目"</p>';
        }
        document.getElementById('subjectList').innerHTML = html;
    }
}

function showAddSubjectModal() {
    const form = document.getElementById('addSubjectFormInHw');
    if (form) form.reset();
    document.getElementById('addSubjectModal').style.display = 'flex';
}

async function submitAddSubject() {
    const subjectName = document.getElementById('subjectName').value.trim();
    const subjectCode = document.getElementById('subjectCode').value.trim();
    
    if (!subjectName) {
        showToast('请填写科目名称', 'warning');
        return;
    }
    
    const res = await apiPost('/api/subject/create', {
        subject_name: subjectName,
        subject_code: subjectCode
    });
    
    if (res && res.success) {
        showToast('科目添加成功');
        closeModal('addSubjectModal');
        loadSubjectList();
        loadSubjectsForHomework();
    } else {
        showToast(res?.message || '添加失败', 'error');
    }
}

async function toggleSubjectStatus(subjectId, enable) {
    const res = await apiPut(`/api/subject/update/${subjectId}`, { is_active: enable });
    if (res && res.success) {
        showToast(enable ? '科目已启用' : '科目已禁用');
        loadSubjectList();
        loadSubjectsForHomework();
    } else {
        showToast(res?.message || '操作失败', 'error');
    }
}

async function deleteSubject(subjectId) {
    if (!confirm('确定要删除该科目吗？如果科目下有作业数据将无法删除。')) return;
    const res = await apiDelete('/api/subject/delete/' + subjectId);
    if (res && res.success) {
        showToast('科目删除成功');
        loadSubjectList();
        loadSubjectsForHomework();
    } else {
        showToast(res?.message || '删除失败', 'error');
    }
}

function showEditSubjectModal(subjectId, name, code, sortOrder) {
    document.getElementById('editSubjectId').value = subjectId;
    document.getElementById('editSubjectName').value = name;
    document.getElementById('editSubjectCode').value = code;
    document.getElementById('editSubjectSortOrder').value = sortOrder;
    document.getElementById('editSubjectModal').style.display = 'flex';
}

async function submitEditSubject() {
    const subjectId = document.getElementById('editSubjectId').value;
    const subjectName = document.getElementById('editSubjectName').value.trim();
    const subjectCode = document.getElementById('editSubjectCode').value.trim();
    const sortOrder = document.getElementById('editSubjectSortOrder').value;
    
    if (!subjectName) {
        showToast('请填写科目名称', 'warning');
        return;
    }
    
    const data = { subject_name: subjectName };
    if (subjectCode) data.subject_code = subjectCode;
    if (sortOrder !== '') data.sort_order = parseInt(sortOrder);
    
    const res = await apiPut(`/api/subject/update/${subjectId}`, data);
    if (res && res.success) {
        showToast('科目更新成功');
        closeModal('editSubjectModal');
        loadSubjectList();
        loadSubjectsForHomework();
    } else {
        showToast(res?.message || '更新失败', 'error');
    }
}

// 绑定科目管理折叠面板
var subjectHeader = document.getElementById('subjectPanelHeader');
if (subjectHeader) {
    subjectHeader.addEventListener('click', toggleSubjectPanel);
}

loadStudents();
loadSubjectsForHomework();

window.loadStudents = loadStudents;
window.showSinglePointsModal = showSinglePointsModal;
window.handleSubmitPoints = handleSubmitPoints;
window.toggleSubjectPanel = toggleSubjectPanel;
window.showAddSubjectModal = showAddSubjectModal;
window.submitAddSubject = submitAddSubject;
window.toggleSubjectStatus = toggleSubjectStatus;
window.deleteSubject = deleteSubject;
window.showEditSubjectModal = showEditSubjectModal;
window.submitEditSubject = submitEditSubject;

})();