// 求和数据管理
let sumDataCurrentPage = 1;
let sumDataPageSize = 10;
let editingSumDataId = null;
let sumDataGroupedList = [];
let sumDataDynamicFields = [];

// 分组并渲染求和数据列表
function renderSumDataList(rawList) {
    const tbody = document.getElementById('sum-data-list');
    const totalColCount = 7 + (rawList ? 0 : 0) + 3; // 占位，后面重新计算

    if (!rawList || rawList.length === 0) {
        // 清空动态表头
        const chargeTh = document.getElementById('th-charge-degree');
        const totalOrdersTh = document.getElementById('th-total-orders');
        let nextSibling = chargeTh.nextElementSibling;
        while (nextSibling && nextSibling !== totalOrdersTh) {
            const toRemove = nextSibling;
            nextSibling = nextSibling.nextElementSibling;
            toRemove.remove();
        }
        tbody.innerHTML = '<tr><td colspan="10" class="empty">暂无数据</td></tr>';
        return;
    }

    // 收集所有动态求和字段（除了充电电量 charge_degree）
    const fieldMap = {};
    rawList.forEach(item => {
        const key = item.sum_field_key;
        if (key && key !== 'charge_degree' && !fieldMap[key]) {
            fieldMap[key] = item.sum_field_name || key;
        }
    });
    
    // 排序：峰平谷按顺序
    const fieldOrder = ['sharp_electricity', 'peak_electricity', 'flat_electricity', 'valley_electricity',
                        'peak_degree', 'peak_time_degree', 'normal_time_degree', 'valley_time_degree'];
    sumDataDynamicFields = Object.keys(fieldMap).sort((a, b) => {
        const idxA = fieldOrder.indexOf(a);
        const idxB = fieldOrder.indexOf(b);
        if (idxA >= 0 && idxB >= 0) return idxA - idxB;
        if (idxA >= 0) return -1;
        if (idxB >= 0) return 1;
        return a.localeCompare(b);
    });

    // 渲染动态列表头（在充电电量列之后插入）
    const chargeTh = document.getElementById('th-charge-degree');
    const totalOrdersTh = document.getElementById('th-total-orders');
    
    // 先移除旧的动态 th（充电电量和订单数之间的）
    let nextSibling = chargeTh.nextElementSibling;
    while (nextSibling && nextSibling !== totalOrdersTh) {
        const toRemove = nextSibling;
        nextSibling = nextSibling.nextElementSibling;
        toRemove.remove();
    }
    
    // 插入新的动态 th
    sumDataDynamicFields.forEach(key => {
        const name = fieldMap[key];
        const th = document.createElement('th');
        th.style.minWidth = '110px';
        th.textContent = name;
        totalOrdersTh.before(th);
    });

    // 按 报表日期 + 配置ID + 拆分值 分组
    const groupMap = {};
    rawList.forEach(item => {
        const groupKey = `${item.report_date}_${item.config_id}_${item.split_value}`;
        if (!groupMap[groupKey]) {
            groupMap[groupKey] = {
                report_date: item.report_date,
                config_id: item.config_id,
                config_name: item.config_name,
                split_type: item.split_type,
                split_value: item.split_value,
                split_name: item.split_name,
                sort_order: item.sort_order || 9999,
                total_orders: item.total_orders || 0,
                data_source: item.data_source,
                remark: item.remark || '',
                fields: {},
                ids: []
            };
        }
        groupMap[groupKey].fields[item.sum_field_key] = {
            value: item.sum_value,
            id: item.id,
            name: item.sum_field_name
        };
        groupMap[groupKey].ids.push(item.id);
        // 取最新的备注和数据来源
        if (item.remark) groupMap[groupKey].remark = item.remark;
        if (item.data_source === 'manual') groupMap[groupKey].data_source = 'manual';
    });

    sumDataGroupedList = Object.values(groupMap).sort((a, b) => {
        if (a.report_date !== b.report_date) return b.report_date.localeCompare(a.report_date);
        return (a.sort_order || 9999) - (b.sort_order || 9999);
    });

    // 分页处理
    const total = sumDataGroupedList.length;
    const start = (sumDataCurrentPage - 1) * sumDataPageSize;
    const pageData = sumDataGroupedList.slice(start, start + sumDataPageSize);
    
    const totalColSpan = 9 + sumDataDynamicFields.length; // 复选+日期+配置+拆分值+充电电量+动态列+订单数+来源+备注+操作

    if (pageData.length === 0) {
        tbody.innerHTML = `<tr><td colspan="${totalColSpan}" class="empty">暂无数据</td></tr>`;
        renderSumDataPagination(total);
        return;
    }

    tbody.innerHTML = pageData.map(group => {
        const chargeDegree = group.fields['charge_degree'];
        const chargeValue = chargeDegree && chargeDegree.value !== null && chargeDegree.value !== undefined
            ? Number(chargeDegree.value).toFixed(3) : '-';
        
        const dataSource = group.data_source === 'auto' ? '自动采集' : '手动编辑';
        const dataSourceClass = group.data_source === 'auto' ? 'status-active' : 'status-inactive';
        const remark = group.remark || '-';

        const dynamicCells = sumDataDynamicFields.map(key => {
            const field = group.fields[key];
            const val = field && field.value !== null && field.value !== undefined
                ? Number(field.value).toFixed(3) : '-';
            return `<td>${val}</td>`;
        }).join('');

        const firstId = chargeDegree ? chargeDegree.id : (group.ids[0] || 0);

        return `
            <tr>
                <td><input type="checkbox" class="sum-data-checkbox" value="${group.ids.join(',')}"></td>
                <td>${group.report_date || '-'}</td>
                <td>${group.config_name || '-'}</td>
                <td title="${group.split_name || ''}">${group.split_name || group.split_value || '-'}</td>
                <td style="background: #f8fafc; font-weight: 600; color: #1d4ed8;">${chargeValue}</td>
                ${dynamicCells}
                <td>${group.total_orders || 0}</td>
                <td><span class="status-badge ${dataSourceClass}">${dataSource}</span></td>
                <td title="${remark}" style="max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;">${remark}</td>
                <td>
                    <button class="btn btn-sm btn-primary" onclick='showEditSumDataGroup(${JSON.stringify(group.ids)})'>编辑</button>
                    <button class="btn btn-sm btn-danger" onclick='deleteSumDataGroup(${JSON.stringify(group.ids)})'>删除</button>
                </td>
            </tr>
        `;
    }).join('');

    renderSumDataPagination(total);
}

// 渲染分页
function renderSumDataPagination(total) {
    const pagination = document.getElementById('sum-data-pagination');
    const totalPages = Math.ceil(total / sumDataPageSize);
    if (totalPages <= 1) {
        pagination.innerHTML = '';
        return;
    }

    let html = '';
    if (sumDataCurrentPage > 1) {
        html += `<button class="btn btn-sm" onclick="loadSumData(${sumDataCurrentPage - 1})">上一页</button>`;
    }
    html += `<span class="page-info">第 ${sumDataCurrentPage} / ${totalPages} 页，共 ${total} 条</span>`;
    if (sumDataCurrentPage < totalPages) {
        html += `<button class="btn btn-sm" onclick="loadSumData(${sumDataCurrentPage + 1})">下一页</button>`;
    }
    pagination.innerHTML = html;
}

// 加载求和数据
async function loadSumData(page = 1) {
    sumDataCurrentPage = page;
    const startDate = document.getElementById('sum-data-start-date').value;
    const endDate = document.getElementById('sum-data-end-date').value;
    const configName = document.getElementById('sum-data-config-name').value;
    const dataSource = document.getElementById('sum-data-source').value;
    
    const listTbody = document.getElementById('sum-data-list');
    if (listTbody) {
        listTbody.innerHTML = '<tr><td colspan="12" class="loading">加载中...</td></tr>';
    }
    
    const params = new URLSearchParams();
    params.append('page_size', '1000');
    if (startDate) params.append('start_date', startDate);
    if (endDate) params.append('end_date', endDate);
    if (configName) params.append('config_name', configName);
    if (dataSource) params.append('data_source', dataSource);

    try {
        const response = await fetch(`/api/sum-data?${params.toString()}&_t=${Date.now()}`);
        const result = await response.json();
        if (result.success) {
            renderSumDataList(result.data.list || []);
        } else {
            if (listTbody) {
                listTbody.innerHTML = '<tr><td colspan="12" class="empty">加载失败: ' + (result.message || '未知错误') + '</td></tr>';
            }
        }
    } catch (error) {
        if (listTbody) {
            listTbody.innerHTML = '<tr><td colspan="12" class="empty">加载失败: ' + error.message + '</td></tr>';
        }
    }
}

// 清除查询
function clearSumDataQuery() {
    document.getElementById('sum-data-start-date').value = '';
    document.getElementById('sum-data-end-date').value = '';
    document.getElementById('sum-data-config-name').value = '';
    document.getElementById('sum-data-source').value = '';
    loadSumData(1);
}

// 全选/取消全选
function toggleSelectAllSumData() {
    const checked = document.getElementById('select-all-sum-data').checked;
    document.querySelectorAll('.sum-data-checkbox').forEach(cb => {
        cb.checked = checked;
    });
}

// 从历史记录采集
async function collectSumDataFromHistory() {
    if (!confirm('确定要从所有成功的历史记录中重新采集求和数据吗？\n（会先清除旧的自动采集数据）')) return;
    
    const resultDiv = document.getElementById('sum-data-list');
    resultDiv.innerHTML = '<tr><td colspan="12" class="empty">正在采集中，请稍候...</td></tr>';
    
    try {
        const response = await fetch('/api/sum-data/collect', {
            method: 'POST',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify({})
        });
        const result = await response.json();
        if (result.success) {
            alert(result.message);
            loadSumData(1);
        } else {
            alert('采集失败: ' + (result.message || '未知错误'));
            loadSumData(1);
        }
    } catch (error) {
        alert('采集失败: ' + error.message);
        loadSumData(1);
    }
}

// 显示添加模态框
function showAddSumDataModal() {
    editingSumDataId = null;
    document.getElementById('sum-data-modal-title').textContent = '手动添加求和数据';
    document.getElementById('sum-data-id').value = '';
    document.getElementById('sum-data-report-date-input').value = '';
    document.getElementById('sum-data-config-name-input').value = '';
    document.getElementById('sum-data-split-type-input').value = 'company_id';
    document.getElementById('sum-data-split-value-input').value = '';
    document.getElementById('sum-data-split-name-input').value = '';
    document.getElementById('sum-data-charge-degree-input').value = '';
    document.getElementById('sum-data-peak-degree-input').value = '';
    document.getElementById('sum-data-peak-time-input').value = '';
    document.getElementById('sum-data-normal-time-input').value = '';
    document.getElementById('sum-data-valley-time-input').value = '';
    document.getElementById('sum-data-total-orders-input').value = 0;
    document.getElementById('sum-data-remark-input').value = '';
    document.getElementById('sum-data-modal').classList.add('active');
}

// 显示编辑分组模态框
let editingGroupIds = [];
let editingGroupData = null;

async function showEditSumDataGroup(ids) {
    try {
        const response = await fetch('/api/sum-data/batch-query', {
            method: 'POST',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify({ ids: ids })
        });
        const result = await response.json();
        
        if (!result.success) {
            alert('加载详情失败');
            return;
        }

        const groupItems = result.data || [];
        
        if (groupItems.length === 0) {
            alert('未找到该记录');
            return;
        }

        editingGroupIds = ids;
        editingGroupData = groupItems;

        const chargeItem = groupItems.find(i => i.sum_field_key === 'charge_degree') || groupItems[0];

        document.getElementById('sum-data-modal-title').textContent = '编辑求和数据';
        document.getElementById('sum-data-id').value = chargeItem.id;
        document.getElementById('sum-data-report-date-input').value = chargeItem.report_date || '';
        document.getElementById('sum-data-config-name-input').value = chargeItem.config_name || '';
        document.getElementById('sum-data-split-type-input').value = chargeItem.split_type || 'company_id';
        document.getElementById('sum-data-split-value-input').value = chargeItem.split_value || '';
        document.getElementById('sum-data-split-name-input').value = chargeItem.split_name || '';
        
        renderEditGroupFields(groupItems);
        
        document.getElementById('sum-data-total-orders-input').value = chargeItem.total_orders || 0;
        document.getElementById('sum-data-remark-input').value = chargeItem.remark || '';
        document.getElementById('sum-data-modal').classList.add('active');
    } catch (error) {
        alert('加载详情失败: ' + error.message);
    }
}

// 渲染编辑分组时的动态字段输入
function renderEditGroupFields(items) {
    // 隐藏静态字段输入区域（整个求和字段值区域）
    const chargeDegreeInput = document.getElementById('sum-data-charge-degree-input');
    if (chargeDegreeInput) {
        chargeDegreeInput.parentElement.parentElement.parentElement.style.display = 'none';
    }
    
    // 先构造动态字段区域
    let fieldsHtml = '<div style="margin-bottom: 15px;"><label style="display: block; margin-bottom: 8px; font-weight: 600;">求和字段值：</label>';
    fieldsHtml += '<div style="display: grid; grid-template-columns: 1fr 1fr; gap: 10px;">';
    
    // 先放充电电量
    const chargeItem = items.find(i => i.sum_field_key === 'charge_degree');
    if (chargeItem) {
        fieldsHtml += `
            <div class="form-group" style="margin-bottom: 0;">
                <label>${chargeItem.sum_field_name || chargeItem.sum_field_key} (必选)：</label>
                <input type="number" step="0.001" class="form-control" 
                       data-field-key="${chargeItem.sum_field_key}" 
                       data-field-name="${chargeItem.sum_field_name || chargeItem.sum_field_key}"
                       data-field-id="${chargeItem.id}"
                       value="${chargeItem.sum_value || 0}">
            </div>
        `;
    }
    
    // 再放其他字段
    items.filter(i => i.sum_field_key !== 'charge_degree').forEach(item => {
        fieldsHtml += `
            <div class="form-group" style="margin-bottom: 0;">
                <label>${item.sum_field_name || item.sum_field_key}：</label>
                <input type="number" step="0.001" class="form-control" 
                       data-field-key="${item.sum_field_key}" 
                       data-field-name="${item.sum_field_name || item.sum_field_key}"
                       data-field-id="${item.id}"
                       value="${item.sum_value || 0}">
            </div>
        `;
    });
    
    fieldsHtml += '</div></div>';
    
    // 插入到订单数前面
    const totalOrdersGroup = document.getElementById('sum-data-total-orders-input').parentElement;
    
    // 检查是否已经有动态区域了
    let dynamicArea = document.getElementById('sum-data-dynamic-fields');
    if (!dynamicArea) {
        dynamicArea = document.createElement('div');
        dynamicArea.id = 'sum-data-dynamic-fields';
        totalOrdersGroup.parentElement.insertBefore(dynamicArea, totalOrdersGroup);
    }
    dynamicArea.innerHTML = fieldsHtml;
}

// 保存求和数据（支持分组编辑）
async function saveSumData() {
    const remark = document.getElementById('sum-data-remark-input').value;
    
    // 编辑时修改原因为必填
    if (editingGroupIds && editingGroupIds.length > 0 && !remark.trim()) {
        alert('请填写修改原因');
        return;
    }

    const totalOrders = document.getElementById('sum-data-total-orders-input').value;

    try {
        // 分组编辑模式
        if (editingGroupIds && editingGroupIds.length > 0) {
            // 读取动态字段值
            const fieldInputs = document.querySelectorAll('#sum-data-dynamic-fields input[data-field-key]');
            let successCount = 0;
            
            for (const input of fieldInputs) {
                const fieldId = input.getAttribute('data-field-id');
                const fieldValue = input.value;
                
                console.log(`更新字段ID: ${fieldId}, 值: ${fieldValue}`);
                
                const response = await fetch(`/api/sum-data/${fieldId}`, {
                    method: 'PUT',
                    headers: { 'Content-Type': 'application/json' },
                    body: JSON.stringify({
                        sum_value: fieldValue,
                        total_orders: totalOrders,
                        remark: remark
                    })
                });
                const result = await response.json();
                console.log(`更新结果: ${JSON.stringify(result)}`);
                if (result.success) successCount++;
            }
            
            if (successCount > 0) {
                alert(`更新成功（${successCount} 个字段）`);
                closeSumDataModal();
                loadSumData(sumDataCurrentPage);
            } else {
                alert('更新失败');
            }
            return;
        }

        // 单条新增模式（批量添加多个字段）
        const fieldsData = [];
        
        const chargeDegree = document.getElementById('sum-data-charge-degree-input').value;
        const peakDegree = document.getElementById('sum-data-peak-degree-input').value;
        const peakTime = document.getElementById('sum-data-peak-time-input').value;
        const normalTime = document.getElementById('sum-data-normal-time-input').value;
        const valleyTime = document.getElementById('sum-data-valley-time-input').value;

        if (!chargeDegree && !peakDegree && !peakTime && !normalTime && !valleyTime) {
            alert('请至少输入一个求和字段值');
            return;
        }

        if (chargeDegree) {
            fieldsData.push({
                sum_field_key: 'charge_degree',
                sum_field_name: '充电电量(kWh)',
                sum_value: chargeDegree
            });
        }
        if (peakDegree) {
            fieldsData.push({
                sum_field_key: 'peak_degree',
                sum_field_name: '尖时电量(kWh)',
                sum_value: peakDegree
            });
        }
        if (peakTime) {
            fieldsData.push({
                sum_field_key: 'peak_time_degree',
                sum_field_name: '峰时电量(kWh)',
                sum_value: peakTime
            });
        }
        if (normalTime) {
            fieldsData.push({
                sum_field_key: 'normal_time_degree',
                sum_field_name: '平时电量(kWh)',
                sum_value: normalTime
            });
        }
        if (valleyTime) {
            fieldsData.push({
                sum_field_key: 'valley_time_degree',
                sum_field_name: '谷时电量(kWh)',
                sum_value: valleyTime
            });
        }

        const data = {
            report_date: document.getElementById('sum-data-report-date-input').value,
            config_name: document.getElementById('sum-data-config-name-input').value,
            split_type: document.getElementById('sum-data-split-type-input').value,
            split_value: document.getElementById('sum-data-split-value-input').value,
            split_name: document.getElementById('sum-data-split-name-input').value,
            total_orders: totalOrders,
            remark: remark,
            fields: fieldsData
        };

        if (!data.report_date) {
            alert('请选择报表日期');
            return;
        }

        const response = await fetch('/api/sum-data/batch-add', {
            method: 'POST',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify(data)
        });
        const result = await response.json();

        if (result.success) {
            alert('添加成功');
            closeSumDataModal();
            loadSumData(sumDataCurrentPage);
        } else {
            alert('保存失败: ' + (result.message || '未知错误'));
        }
    } catch (error) {
        alert('保存失败: ' + error.message);
    }
}

// 关闭模态框
function closeSumDataModal() {
    document.getElementById('sum-data-modal').classList.remove('active');
    editingGroupIds = [];
    editingGroupData = null;
    // 清空新增字段输入
    document.getElementById('sum-data-charge-degree-input').value = '';
    document.getElementById('sum-data-peak-degree-input').value = '';
    document.getElementById('sum-data-peak-time-input').value = '';
    document.getElementById('sum-data-normal-time-input').value = '';
    document.getElementById('sum-data-valley-time-input').value = '';
    // 恢复静态字段区域显示
    const chargeDegreeInput = document.getElementById('sum-data-charge-degree-input');
    if (chargeDegreeInput) {
        chargeDegreeInput.parentElement.parentElement.parentElement.style.display = '';
    }
    // 清理动态区域
    const dynamicArea = document.getElementById('sum-data-dynamic-fields');
    if (dynamicArea) {
        dynamicArea.remove();
    }
}

// 删除单条（分组）
async function deleteSumDataGroup(ids) {
    if (!confirm(`确定要删除这组求和数据吗？（共 ${ids.length} 条字段记录）`)) return;
    
    try {
        let success = true;
        for (const id of ids) {
            const response = await fetch(`/api/sum-data/${id}`, { method: 'DELETE' });
            const result = await response.json();
            if (!result.success) success = false;
        }
        
        if (success) {
            alert('删除成功');
            loadSumData(sumDataCurrentPage);
        } else {
            alert('部分删除失败');
        }
    } catch (error) {
        alert('删除失败: ' + error.message);
    }
}

// 兼容旧函数名
function deleteSumData(id) {
    deleteSumDataGroup([id]);
}

// 批量删除
async function batchDeleteSumData() {
    const checkboxes = document.querySelectorAll('.sum-data-checkbox:checked');
    if (checkboxes.length === 0) {
        alert('请选择要删除的记录');
        return;
    }
    
    const ids = [];
    checkboxes.forEach(cb => {
        const val = cb.value;
        if (val.indexOf(',') >= 0) {
            val.split(',').forEach(id => ids.push(parseInt(id)));
        } else {
            ids.push(parseInt(val));
        }
    });
    
    if (!confirm(`确定要删除选中的 ${ids.length} 条求和数据吗？`)) return;
    
    try {
        const response = await fetch('/api/sum-data/batch-delete', {
            method: 'POST',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify({ ids: ids })
        });
        const result = await response.json();
        if (result.success) {
            alert('删除成功');
            loadSumData(sumDataCurrentPage);
        } else {
            alert('删除失败: ' + (result.message || '未知错误'));
        }
    } catch (error) {
        alert('删除失败: ' + error.message);
    }
}

async function exportSumData() {
    const startDate = document.getElementById('sum-data-start-date').value;
    const endDate = document.getElementById('sum-data-end-date').value;
    const configName = document.getElementById('sum-data-config-name').value;
    const dataSource = document.getElementById('sum-data-source').value;
    
    const params = new URLSearchParams();
    if (startDate) params.append('start_date', startDate);
    if (endDate) params.append('end_date', endDate);
    if (configName) params.append('keyword', configName);
    if (dataSource) params.append('data_source', dataSource);
    
    try {
        const response = await fetch(`/api/sum-data/export?${params.toString()}`);
        const result = await response.json();
        
        if (result.success) {
            if (result.total === 0) {
                alert('没有可导出的数据');
                return;
            }
            const a = document.createElement('a');
            a.href = result.file_path;
            a.download = result.filename || '求和数据导出.xlsx';
            a.target = '_blank';
            document.body.appendChild(a);
            a.click();
            document.body.removeChild(a);
        } else {
            alert('导出失败: ' + (result.message || '未知错误'));
        }
    } catch (error) {
        alert('导出失败: ' + error.message);
    }
}