import execa from "execa";
import L from "../../utils/logger";
const fs = require("fs");

interface Options {
  ignore?: boolean;
}

async function wrapComponent(name: string, options?: Options): Promise<void> {
  if (!options) {
    options = {
      ignore: false,
    };
  }

  if (name.slice(-3) !== ".js") {
    name += ".js";
  }

  L.info(`wrap ${name} into a dir...`);

  if (options.ignore) {
    L.info("also add .gitignre and package.json");
  }

  const pkgDir = name.split(".js")[0];

  let fileContent = fs.readFileSync(`${name}`).toString();

  if (!fileContent) {
    throw new Error("empty file");
  }

  execa.commandSync(`mkdir -p ${pkgDir}`);

  let regex: RegExp;

  regex = /(import.*from.*['"])\.(.*)/g;
  fileContent = fileContent.replace(regex, "$1../.$2");

  regex = /(import.*from.*['"])\.\.\/\.\/(.*)/g;
  fileContent = fileContent.replace(regex, "$1../$2");

  regex = /(require\(['"])\.(.*)/g;
  fileContent = fileContent.replace(regex, "$1../.$2");

  regex = /(require\(['"])\.\.\/\.\/(.*)/g;
  fileContent = fileContent.replace(regex, "$1../$2");

  fs.writeFileSync(`${pkgDir}/index.js`, fileContent);
  fs.writeFileSync(`${pkgDir}/package.json`, '{"main": "./index.js"}');

  if (options.ignore) {
    fs.writeFileSync(`${pkgDir}/.gitignore`, "package.json");
  }

  execa.commandSync(`rm ${name}`);
}

export { wrapComponent };