import {Command} from 'commander';
import path from 'path';
import fetch from "node-fetch";
import fs from "fs";
import http from "https";
import unzipper from "unzipper";
import {createTechnicalFiles, defaultGitRepo} from "./generators/block/index.js";
import {fileURLToPath} from 'url';

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);


init();

function init() {
  const program = new Command();

  program
    .name('create-block')
    .description('AXE-WEB Platform Blocks');

  program.command('pull')
    .argument('<string>', 'Provide a full name of required block, for example: @axe-web/hero-block')
    .action(async (blockName, options) => {
      console.log('Block to download:', blockName)

      await getBlockSourceFiles(blockName);


    });

  program.parse();
}

async function getBlockSourceFiles(blockName) {
  const blocksRegistry = 'http://localhost:3020';

  const queryString = new URLSearchParams();
  queryString.append('blockName', blockName);

  const response = await fetch(`${blocksRegistry}?${queryString.toString()}`);
  const responseData = await response.json();
  if (!responseData) {
    return;
  }

  const zipFile = await downloadFile(responseData.downloadUrl, responseData.name);

  const file = await fs.createReadStream(zipFile)
    .pipe(unzipper.Extract({path: `blocks/${responseData.name}/src`}))
    .promise();

  // Remove downloaded file.
  try {
    await fs.promises.access(zipFile, fs.constants.W_OK);
    await fs.promises.unlink(zipFile);
  } catch (e) {
    console.log(e)
  }

  await createTechnicalFiles({
    name: responseData.name,
    blockFilename: responseData.name,
    devToolSource: defaultGitRepo
  }, __dirname);
}

async function downloadFile(url, blockName) {
  const file = fs.createWriteStream(blockName + '.zip');

  return new Promise((resolve, reject) => {
    const request = http.get(url, function (response) {
      response.pipe(file);

      // after download completed close filestream
      file.on("finish", () => {
        file.close();
        resolve(`./${blockName}.zip`);
      });
    });
  })
}