// 根据不同场景生成不同配置文件

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

function copyIt(from, to) {
  fs.writeFileSync(to, fs.readFileSync(from));
}


function copyDir(from, to) {
  fs.readdir(from, (err, files) => {
    if (err) {
      return;
    }
    if (!fs.existsSync(to)) {
      fs.mkdirSync(to);
    } else {
      files.forEach((item, index) => {
        let itemPath = path.join(from, item);
        let tempFile = fs.statSync(itemPath);
        if (tempFile.isFile()) {
          copyIt(itemPath, path.join(to, item))
        } else {
          copyDir(itemPath, path.join(to, item));
        }
      });
    }
  })
}

let argv = process.argv[2] || "vast-box";
console.log('process.argv', argv);

// env配置文件
let fromEnvPath = path.join(__dirname, 'build_config', argv, '.env');
let toEnvPath = path.join(__dirname, '.env');
// assets目录
let fromConstantPath = path.join(__dirname, 'build_config', argv, 'assets');
let toConstantPath = path.join(__dirname, 'src', 'assets');
// 小程序可配置参数文件
let fromConfigPath = path.join(__dirname, 'build_config', argv, 'config.js');
let toConfigPath = path.join(__dirname, 'src', 'config', 'config.js');
// 小程序工程配置
let fromProjectPath = path.join(__dirname, 'build_config', argv, 'project.config.json');
let toProjectPath = path.join(__dirname, 'project.config.json');

let copyArr = [[fromEnvPath, toEnvPath], [fromConstantPath, toConstantPath], [fromConfigPath, toConfigPath], [fromProjectPath, toProjectPath]];

//拷贝文件到对应目录下
copyArr.map((item, idx) => {
  if (idx == 1) {
    copyDir(item[0], item[1])
  } else {
    copyIt(item[0], item[1])
  }
});