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+import LuckyExcel from 'luckyexcel'
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+import * as XLSX from 'xlsx'
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+
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+/**
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+ * 修复luckysheet中的公式解析问题
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+ * 主要解决：Excel公式 =IF(E6=100%,"Y",N) 被luckyexcel解析为 =IF(E6=100%,"Y",_xleta.N) 的问题
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+ * 同时修复百分比格式和公式语法问题
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+ * @param {Array} sheetData - luckysheet数据
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+ * @returns {Array} 修复后的数据
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+ */
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+export function fixLuckySheetFormulas(sheetData) {
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+ try {
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+ if (!sheetData || !Array.isArray(sheetData)) return sheetData
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+
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+ // 遍历所有sheet
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+ return sheetData.map(sheet => {
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+ if (!sheet) return sheet
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+
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+ // 修复celldata中的公式
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+ if (Array.isArray(sheet.celldata)) {
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+ sheet.celldata.forEach(cell => {
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+ if (cell && cell.v && cell.v.f) {
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+ const formula = cell.v.f
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+ let newFormula = formula
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+
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+ // 修复 _xleta.N 问题
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+ // 检查公式模式: =IF(E6=100%,"Y",_xleta.N)
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+ // 修复为: =IF(E6=100%,"Y","N")
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+
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+ // 更精确的匹配：只匹配在函数参数位置且不在函数名位置的_xleta.N
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+ const regex = /(IF\([^,]+,[^,]+,)_xleta\.(N)(\))/g
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+ const matches = [...formula.matchAll(regex)]
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+
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+ if (matches.length > 0) {
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+ matches.forEach(match => {
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+ const before = match[1]
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+ const variable = match[2]
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+ const after = match[3]
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+
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+ // 对于字母N、Y等，作为字符串处理
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+ const isSimpleLetter = /^[A-Za-z]$/.test(variable)
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+ if (isSimpleLetter) {
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+ // 对于简单字母变量，替换为字符串
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+ const replacement = `${before}"${variable}"${after}`
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+ newFormula = newFormula.replace(match[0], replacement)
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+ }
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+ })
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+ }
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+
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+ // 更通用的修复：处理其他_xleta前缀的变量
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+ // 例如: _xleta.Y, _xleta.VAR 等
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+ const genericRegex = /_xleta\.([A-Za-z]+)/g
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+ const genericMatches = [...newFormula.matchAll(genericRegex)]
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+
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+ if (genericMatches.length > 0) {
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+ genericMatches.forEach(match => {
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+ const fullMatch = match[0]
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+ const variableName = match[1]
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+
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+ // 判断是否为简单变量名（单个字母）
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+ if (/^[A-Za-z]$/.test(variableName)) {
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+ newFormula = newFormula.replace(fullMatch, `"${variableName}"`)
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+ }
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+ })
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+ }
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+
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+ // 智能修复百分比格式问题
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+ // 对于公式 =IF(E6=100%,"Y","N")，需要将100%转换为luckysheet能理解的格式
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+ const percentRegex = /(\d+)%/g
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+ const percentMatches = [...newFormula.matchAll(percentRegex)]
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+
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+ if (percentMatches.length > 0) {
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+ percentMatches.forEach(match => {
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+ const fullMatch = match[0]
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+ const number = match[1]
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+ const percentValue = parseFloat(number) / 100
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+
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+ // 将百分比转换为数值，因为Excel中100%就是数值1
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+ // 这是最可能工作的方案
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+ newFormula = newFormula.replace(fullMatch, percentValue.toString())
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+ })
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+ }
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+
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+ if (newFormula !== formula) {
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+ cell.v.f = newFormula
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+ }
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+ }
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+ })
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+ }
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+
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+ // 修复data数组中的公式
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+ if (Array.isArray(sheet.data)) {
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+ sheet.data.forEach((row, rowIndex) => {
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+ if (Array.isArray(row)) {
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+ row.forEach((cell, colIndex) => {
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+ if (cell && cell.f) {
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+ const formula = cell.f
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+ let newFormula = formula
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+
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+ // 修复 _xleta.N 问题（与上面相同的逻辑）
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+ const regex = /(IF\([^,]+,[^,]+,)_xleta\.(N)(\))/g
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+ const matches = [...formula.matchAll(regex)]
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+
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+ if (matches.length > 0) {
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+ matches.forEach(match => {
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+ const before = match[1]
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+ const variable = match[2]
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+ const after = match[3]
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+
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+ const isSimpleLetter = /^[A-Za-z]$/.test(variable)
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+ if (isSimpleLetter) {
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+ const replacement = `${before}"${variable}"${after}`
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+ newFormula = newFormula.replace(match[0], replacement)
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+ }
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+ })
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+ }
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+
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+ // 通用修复
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+ const genericRegex = /_xleta\.([A-Za-z]+)/g
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+ const genericMatches = [...newFormula.matchAll(genericRegex)]
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+
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+ if (genericMatches.length > 0) {
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+ genericMatches.forEach(match => {
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+ const fullMatch = match[0]
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+ const variableName = match[1]
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+
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+ if (/^[A-Za-z]$/.test(variableName)) {
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+ newFormula = newFormula.replace(fullMatch, `"${variableName}"`)
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+ }
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+ })
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+ }
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+
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+ // 智能修复百分比格式问题
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+ const percentRegex = /(\d+)%/g
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+ const percentMatches = [...newFormula.matchAll(percentRegex)]
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+
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+ if (percentMatches.length > 0) {
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+ percentMatches.forEach(match => {
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+ const fullMatch = match[0]
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+ const number = match[1]
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+ const percentValue = parseFloat(number) / 100
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+
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+ // 将百分比转换为数值
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+ newFormula = newFormula.replace(fullMatch, percentValue.toString())
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+ })
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+ }
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+
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+ if (newFormula !== formula) {
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+ cell.f = newFormula
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+ }
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+ }
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+ })
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+ }
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+ })
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+ }
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+
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+ return sheet
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+ })
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+ } catch (error) {
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+ return sheetData
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+ }
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+}
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+
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+/**
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+ * 处理.xls文件导入
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+ * @param {ArrayBuffer} arrayBuffer - .xls文件的ArrayBuffer
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+ * @returns {Promise} 返回包含luckysheet数据的Promise
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+ */
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+export function handleXlsFile(arrayBuffer) {
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+ return new Promise((resolve, reject) => {
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+ try {
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+ // 使用 xlsx 读取 .xls，保留单元格样式
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+ const workbook = XLSX.read(arrayBuffer, {
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+ type: 'array',
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+ cellStyles: true // 保留样式信息
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+ })
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+
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+ // 转换为 .xlsx 格式的 ArrayBuffer，保留样式
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+ const xlsxArrayBuffer = XLSX.write(workbook, {
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+ bookType: 'xlsx',
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+ type: 'array',
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+ cellStyles: true, // 保留样式
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+ bookSST: false
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+ })
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+
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+ // 用 LuckyExcel 解析转换后的数据
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+ handleXlsxFile(xlsxArrayBuffer)
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+ .then(resolve)
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+ .catch(reject)
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+
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+ } catch (error) {
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+ reject(new Error('导入失败：.xls 文件格式不支持或已损坏！'))
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+ }
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+ })
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+}
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+
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+/**
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+ * 处理.xlsx文件导入
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+ * @param {ArrayBuffer} arrayBuffer - .xlsx文件的ArrayBuffer
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+ * @returns {Promise} 返回包含luckysheet数据的Promise
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+ */
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+export function handleXlsxFile(arrayBuffer) {
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+ return new Promise((resolve, reject) => {
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+ LuckyExcel.transformExcelToLucky(arrayBuffer, (exportJson, luckysheetfile) => {
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+ if (exportJson.sheets && exportJson.sheets.length > 0) {
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+ // 修复导入后的公式问题
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+ const fixedSheets = fixLuckySheetFormulas(exportJson.sheets)
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+ resolve(fixedSheets)
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+ } else {
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+ reject(new Error('导入失败：Excel 文件为空或格式错误！'))
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+ }
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+ })
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+ })
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+}
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+
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+/**
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+ * 导入Excel文件的主函数
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+ * @param {File} file - Excel文件
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+ * @returns {Promise} 返回包含luckysheet数据的Promise
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+ */
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+export async function importExcelFile(file) {
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+ return new Promise((resolve, reject) => {
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+ const fileName = file.name
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+ const fileExt = fileName.substring(fileName.lastIndexOf('.')).toLowerCase()
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+
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+ if (fileExt !== '.xlsx' && fileExt !== '.xls') {
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+ reject(new Error('仅支持导入 .xlsx 和 .xls 格式的 Excel 文件！'))
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+ return
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+ }
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+
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+ const reader = new FileReader()
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+
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+ reader.onload = (evt) => {
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+ try {
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+ if (fileExt === '.xls') {
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+ // .xls 文件先用 xlsx 转换为 .xlsx
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+ handleXlsFile(evt.target.result)
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+ .then(resolve)
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+ .catch(reject)
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+ } else {
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+ // .xlsx 文件直接用 LuckyExcel 解析
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+ handleXlsxFile(evt.target.result)
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+ .then(resolve)
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+ .catch(reject)
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+ }
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+ } catch (error) {
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+ reject(new Error(`导入失败：${error.message || '文件解析错误，请检查文件格式是否正确'}`))
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+ }
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+ }
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+
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+ reader.onerror = () => {
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+ reject(new Error('导入失败：文件读取错误！'))
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+ }
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+
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+ reader.readAsArrayBuffer(file)
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+ })
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+}
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+
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+/**
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+ * 获取导入文件的格式提示
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+ * @param {string} fileExt - 文件扩展名
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+ * @returns {string} 提示信息
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+ */
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+export function getFormatTip(fileExt) {
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+ if (fileExt === '.xls') {
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+ return '.xls 格式导入时可能无法保留单元格样式（如颜色、边框等）。建议将文件另存为 .xlsx 格式后再导入，以完整保留样式。是否继续导入？'
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+ }
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+ return ''
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+}
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+
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+export default {
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+ fixLuckySheetFormulas,
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+ handleXlsFile,
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+ handleXlsxFile,
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+ importExcelFile,
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+ getFormatTip
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+}
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tianxinyu