/*
  将现有的 copy-audit.xlsx 转换为 i18next 格式的翻译文件
*/

const fs = require('fs');
const path = require('path');
const XLSX = require('xlsx');

const WORKDIR = process.cwd();

function generateI18nKey(item) {
  // 生成 i18next 格式的键名
  const route = item.route === "shared" ? "common" : item.route.replace(/[^a-zA-Z0-9]/g, "_");
  const component = item.componentOrFn.replace(/[^a-zA-Z0-9]/g, "_");
  const kind = item.kind;
  const locator = item.keyOrLocator.replace(/[^a-zA-Z0-9]/g, "_");
  
  return `${route}.${component}.${kind}.${locator}`.toLowerCase();
}

function main() {
  // 读取现有的 Excel 文件
  const excelFile = path.join(WORKDIR, 'docs', 'copy-audit.xlsx');
  if (!fs.existsSync(excelFile)) {
    console.error('❌ 找不到 copy-audit.xlsx 文件，请先运行 extract-copy 脚本');
    process.exit(1);
  }

  const workbook = XLSX.readFile(excelFile);
  const sheetName = workbook.SheetNames[0];
  const worksheet = workbook.Sheets[sheetName];
  const data = XLSX.utils.sheet_to_json(worksheet);

  console.log(`📊 读取到 ${data.length} 条记录`);

  // 生成 i18next 格式的翻译文件
  const translation = {};
  const i18nKeys = [];
  
  data.forEach((item, index) => {
    if (item.text && item.text.trim()) {
      const key = generateI18nKey(item);
      translation[key] = item.text;
      i18nKeys.push({
        key,
        value: item.text,
        route: item.route,
        file: item.file,
        line: item.line,
        kind: item.kind
      });
    }
  });

  // 确保目录存在
  const localesDir = path.join(WORKDIR, 'public', 'locales', 'en');
  if (!fs.existsSync(localesDir)) {
    fs.mkdirSync(localesDir, { recursive: true });
  }

  // 写入翻译文件
  const translationFile = path.join(localesDir, 'translation.json');
  fs.writeFileSync(translationFile, JSON.stringify(translation, null, 2));

  // 生成详细的 i18n 扫描报告
  const report = {
    totalItems: data.length,
    uniqueTexts: new Set(data.map(item => item.text)).size,
    translationKeys: Object.keys(translation).length,
    byRoute: data.reduce((acc, item) => {
      acc[item.route] = (acc[item.route] || 0) + 1;
      return acc;
    }, {}),
    byKind: data.reduce((acc, item) => {
      acc[item.kind] = (acc[item.kind] || 0) + 1;
      return acc;
    }, {}),
    sampleKeys: Object.keys(translation).slice(0, 10)
  };

  // 生成 Excel 格式的 i18n 报告
  const i18nWorkbook = XLSX.utils.book_new();
  const i18nSheet = XLSX.utils.json_to_sheet(i18nKeys);
  XLSX.utils.book_append_sheet(i18nWorkbook, i18nSheet, 'i18n-keys');
  
  const i18nReportFile = path.join(WORKDIR, 'docs', 'i18n-scan-report.xlsx');
  XLSX.writeFile(i18nWorkbook, i18nReportFile);

  // 生成 JSON 报告
  const reportFile = path.join(WORKDIR, 'docs', 'i18n-scan-report.json');
  fs.writeFileSync(reportFile, JSON.stringify(report, null, 2));

  console.log('✅ i18next 扫描转换完成！');
  console.log(`📊 总扫描条目: ${data.length}`);
  console.log(`🔑 生成翻译键: ${Object.keys(translation).length}`);
  console.log(`📁 翻译文件: ${translationFile}`);
  console.log(`📋 i18n Excel 报告: ${i18nReportFile}`);
  console.log(`📄 JSON 报告: ${reportFile}`);
  console.log('\n📝 示例翻译键:');
  report.sampleKeys.forEach(key => {
    console.log(`  ${key}: "${translation[key]}"`);
  });
}

main();