import fs from "fs-extra";
import config from "./config.js";
import util from "util";
import { exec } from "child_process";

const execPromise = util.promisify(exec);

function readConfig(name) {
  const config = fs.readJsonSync(name);

  return config;
}

function createTmpDir() {
  // check if tmp dir exists
  // if not, create it

  if (!fs.existsSync(config.tmpFolder)) {
    fs.mkdirSync(config.tmpFolder);
    console.log("tmp folder created");
  }
}

function copyTemplateWebsite() {
  console.log("copy template website");
  fs.copySync(config.templateWebsiteFolder, `${config.tmpFolder}/template`);

  console.log("copy template website success");

  // delete config.json file in template folder
  fs.removeSync(`${config.tmpFolder}/template/src/config.json`);
}

function deleteTmpDir() {
  console.log("delete tmp folder");
  fs.removeSync(config.tmpFolder);
}

async function buildCustomerWebsite(pageId, pageConfig) {
  console.log(`Start building customer website ${pageId}`);

  // create config.json file in template folder
  fs.writeJsonSync(`${config.tmpFolder}/template/src/config.json`, pageConfig);

  // delete public folder in tmp folder and recopy it from website template folder
  fs.removeSync(`${config.tmpFolder}/template/public`);

  fs.copySync(
    `${config.templateWebsiteFolder}/public`,
    `${config.tmpFolder}/template/public`
  );

  // copy all assets from customer data to public folder

  fs.copySync(
    `${config.customerWebsiteDataFolder}/${pageId}/`,
    `${config.tmpFolder}/template/public/`
  );

  // run npm run build in template folder
  try {
    const { stdout } = await execPromise("npm run build", {
      cwd: `${config.tmpFolder}/template`,
    });

    console.log(stdout);
  } catch (err) {
    console.error(`Failed to build customer website ${pageId} ${err}`);
  } finally {
    console.log(`Build customer website ${pageId} success`);

    // copy build folder to customer websites folder

    fs.copySync(
      `${config.tmpFolder}/template/build`,
      `${config.customerWebsiteFolder}/${pageId}`
    );
  }
}

function runBuilder() {
  deleteTmpDir();

  createTmpDir();

  copyTemplateWebsite();

  (async () => {
    await buildCustomerWebsite(
      "test1",
      readConfig("../dev-only/test-config.json")
    );
    await buildCustomerWebsite(
      "test2",
      readConfig("../dev-only/test-config2.json")
    );

    console.log("build all customer websites success");
    console.log("DONT FORGET TO COPY THE FOLDERS TO NGINX");
  })();

  //buildCustomerWebsite("test1", readConfig("./test-config.json"));
  //buildCustomerWebsite("test2", readConfig("./test-config2.json"));
}

runBuilder();