const fs = require('fs');
const path = require('path');
const chokidar = require('chokidar');
const { parse } = require('@babel/parser');
const { codeFrameColumns } = require('@babel/code-frame');

// 配置常量
const AUTO_START = '/* auto-generated-start */';
const AUTO_END = '/* auto-generated-end */';
const INDENT = '  '; // 缩进2空格

// 配置文件路径
// const CONFIG_PATH = path.join(__dirname, '../config/dynamic-config.js');
const CONFIG_PATH = "/Users/bmy/source/TsxVueClassApi/src/core/config/configure.config.ts";
const TARGET_PATH = path.join(__dirname, 'templates/TargetClass.ts');

function generateClassMethods(keys) {
  // 读取目标文件
  let targetContent;
  try {
    targetContent = fs.readFileSync(TARGET_PATH, 'utf8');
  } catch {
    targetContent = `${AUTO_START}\n${AUTO_END}`;
  }

  // 生成新方法代码
  const newMethods = keys.map(key =>
    `${INDENT}public ${key}() {\n${INDENT}  // Auto-generated\n${INDENT}}`
  ).join('\n\n');

  // 替换标记区域
  const newContent = targetContent.replace(
    new RegExp(`${AUTO_START}([\\s\\S]*?)${AUTO_END}`),
    `${AUTO_START}\n${newMethods}\n${INDENT}${AUTO_END}`
  );

  // 格式校验
  try {
    parse(newContent, { plugins: ['typescript'] });
    fs.writeFileSync(TARGET_PATH, newContent);
  } catch (err) {
    console.error('⚠️ 生成代码语法错误:');
    console.log(codeFrameColumns(newContent, err.loc, { highlightCode: true }));
  }
}