import fs from "fs-extra";
import findProjectRoot from "./lib/utils/find-project-root.js";
import convertESModuletoAMD from "./lib/transpilers/convert-es-module-to-amd.js";
import transpileNPMImport from "./lib/transpilers/transpile-npm-imports.js";

const removeFetch = `
  (function() {
    window.fetch = undefined;
  })();
`;

async function build() {
  const PROJECT_PATH = await findProjectRoot();
  const MODULE_PATH = `${PROJECT_PATH}/node_modules`;
  const VENDOR_PATH = `${PROJECT_PATH}/_vendor`;

  return Promise.all([
    fs.readFile(`${MODULE_PATH}/whatwg-fetch/dist/fetch.umd.js`),
    transpileNPMImport("memserver/model", `${MODULE_PATH}/memserver/model.js`),
    transpileNPMImport(
      "memserver",
      `${MODULE_PATH}/memserver/lib/mem-server-cjs.js`
    )
  ]).then(async ([fetchReplacement, memServerModelModule, memServerModule]) => {
    const memserverResponseModule = await convertESModuletoAMD(
      `
      export default function(statusCode=200, data={}, headers={}) {
        return [
          statusCode,
          Object.assign({ 'Content-Type': 'application/json' }, headers),
          JSON.stringify(data)
        ];
      }
    `,
      { moduleName: "memserver/response" }
    );

    // NOTE: cant remove fetch replacements because ember-fetch injection doesnt take into account the possiblity of fetch mocking in node.js
    return Promise.all([
      fs.copy(
        `${PROJECT_PATH}/scripts/memserver/initializers/ajax.js`,
        `${VENDOR_PATH}/memserver/fastboot/initializers/ajax.js`
      ),
      fs.writeFile(
        `${VENDOR_PATH}/memserver.js`,
        `
        ${removeFetch}

        ${fetchReplacement}

        ${memServerModelModule}

        ${memserverResponseModule}

        ${memServerModule}
      `
      )
    ]);
  });
}

build().then(() => console.log("memserver.js built"));

// NOTE: chalk adds thousands lines of code that isnt used
// NOTE: node util adds strange code via browserify
// NOTE: chalk gets add up twice
// NOTE: node util, 'inflections' shit again
// TODO: maybe minify this