import * as fs from "fs";

import * as glob from "glob";

import { Command } from "./command";

function deleteFolderRecursive(path: string) {
  if (fs.existsSync(path)) {
    fs.readdirSync(path).forEach((file) => {
      let curPath = `${path}/${file}`;
      if (fs.lstatSync(curPath).isDirectory()) {
        // recurse
        deleteFolderRecursive(curPath);
      } else {
        // delete file
        fs.unlinkSync(curPath);
      }
    });
    fs.rmdirSync(path);
  }
}

export function createCleanCommand(): Command<void> {
  return {
    execute() {
      deleteFolderRecursive("./build");
      deleteFolderRecursive("./dist");
      let rogueFiles = glob.sync("{src,test}/**/*.js{,.map}", {});
      rogueFiles.forEach((file) => fs.unlinkSync(file));

      return Promise.resolve(true);
    },
  };
}